© Semiconductor Components Industries, LLC, 2015
November, 2015 − Rev. 8 1Publication Order Number:
NCP717/D
NCP717
300 mA, Very-Low
Quiescent Current, IQ 25 mA,
Low Noise, Low Dropout
Regulator
The NCP717 is 300 mA LDO that provides the engineer with a very
stable, accurate voltage with very low noise suitable for space
constrained, noise sensitive applications. In order to optimize
performance for battery operated portable applications, the NCP717
employs the dynamic quiescent current adjustment for very low IQ
consumption at no−load.
Features
•Operating Input Voltage Range: 1.8 V to 5.5 V
•Available in Fixed Voltage Options: 0.8 V to 5 V
Contact Factory for Other Voltage Options
•Very Low Quiescent Current of Typ. 25 mA
•Very Low Noise: 22 mVRMS from 100 Hz to 100 kHz
•Low Dropout: 175 mV Typical at 300 mA
•±2% Accuracy Over Load/Line/Temperature
•High Power Supply Ripple Rejection: 70 dB at 1 kHz
•Thermal Shutdown and Current Limit Protections
•Stable with a 1 mF Ceramic Output Capacitor
•Available in XDFN 1.0 x 1.0 mm Package
•These are Pb−Free Devices
Typical Applicaitons
•PDAs, Mobile phones, GPS, Smartphones
•Wireless Handsets, W ireless LAN, Bluetooth®, Zigbee®
•Portable Medical Equipment
•Other Battery Powered Applications
Figure 1. Typical Application Schematic
NCP717
IN
EN
OUT
GND
OFF ON
VOUT
COUT
1 mF
Ceramic
CIN
VIN
XDFN4
MX SUFFIX
CASE 711AJ
MARKING
DIAGRAM
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See detailed ordering and shipping information in the package
dimensions section on page 15 of this data sheet.
ORDERING INFORMATION
PIN CONNECTION
1
X = Specific Device Code
M = Date Code
X M
1
43
21
OUT GND
IN EN
(Top View)
EPAD
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2
IN
OUT
BANDGAP
REFERENCE
ACTIVE
DISCHARGE*
MOSFET
DRIVER WITH
CURRENT LIMIT
THERMAL
SHUTDOWN
ENABLE
LOGIC
GND
AUTO LOW
POWER MODE
EN
EN
Figure 2. Simplified Schematic Block Diagram
*Active output discharge function is present only in NCP717AMXyyyTCG and NCP717CMXyyyTCG devices.
yyy denotes the particular VOUT option.
PIN FUNCTION DESCRIPTION
Pin No. Pin Name Description
1 OUT Regulated output voltage pin. A small ceramic capacitor with minimum value of 1 mF is needed from this
pin to ground to assure stability.
2 GND Power supply ground.
3 EN Driving EN over 0.9 V turns on the regulator. Driving EN below 0.4 V puts the regulator into shutdown
mode.
4 IN Input pin. A small capacitor is needed from this pin to ground to assure stability.
− EPAD Exposed pad should be connected directly to the GND pin. Soldered to a large ground copper plane allows
for effective heat removal.
ABSOLUTE MAXIMUM RATINGS
Rating Symbol Value Unit
Input Voltage (Note 1) VIN −0.3 V to 6 V V
Output Voltage VOUT −0.3 V to VIN + 0.3 V V
Enable Input VEN −0.3 V to VIN + 0.3 V V
Output Short Circuit Duration tSC ∞s
Maximum Junction Temperature TJ(MAX) 150 °C
Storage Temperature TSTG −55 to 150 °C
ESD Capability, Human Body Model (Note 2) ESDHBM 2000 V
ESD Capability, Machine Model (Note 2) ESDMM 200 V
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be af fected.
1. Refer to ELECTRICAL CHARACTERISTIS and APPLICATION INFORMATION for Safe Operating Area.
2. This device series incorporates ESD protection and is tested by the following methods:
ESD Human Body Model tested per EIA/JESD22−A114,
ESD Machine Model tested per EIA/JESD22−A115,
Latchup Current Maximum Rating tested per JEDEC standard: JESD78.
THERMAL CHARACTERISTICS
Rating Symbol Value Unit
Thermal Characteristics, XDFN4 1x1 mm
Thermal Resistance, Junction−to−Air RqJA 250 °C/W
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ELECTRICAL CHARACTERISTICS
−40°C ≤ TJ ≤ 125°C; VIN = VOUT(NOM) + 0.5 V or 2.3 V, whichever is greater; IOUT = 10 mA, CIN = COUT = 1 mF, unless otherwise noted.
VEN = 0.9 V. Typical values are at TJ = +25°C. Min./Max. are for TJ = −40°C and TJ = +125°C respectively (Note 3).
Parameter Test Conditions Symbol Min Typ Max Unit
Operating Input Voltage VIN 1.8 5.5 V
Output Voltage Accuracy
2.3 V ≤ VIN ≤ 4.2 V
IOUT = 0 − 300 mA VOUT(nom) < 1.5 V
VOUT
−30 +30 mV
VOUT(NOM) + 0.5 V or
2.3 V ≤ VIN ≤ 5.5 V
IOUT = 0 − 300 mA VOUT(nom) ≥ 1.5 V −2 +2 %
Line Regulation VOUT + 0.5 V or 2.3 V ≤ VIN ≤ 5.5 V,
IOUT = 10 mA RegLINE 400 mV/V
Load Regulation IOUT = 0 mA to 300 mA RegLOAD 12 mV/mA
Load Transient IOUT = 1 mA to 300 mA or 300 mA to 1 mA in
1 ms, COUT = 1 mFTranLOAD 95 mV
Dropout Voltage (Note 4) IOUT = 300 mA
VOUT = 2.5 V
VDO
190 350
mV
VOUT = 2.8 V 175 280
VOUT = 2.85 V 175 265
VOUT = 3.0 V 170 250
VOUT = 3.1 V 165 235
VOUT = 3.2 V 165 235
VOUT = 3.3 V 155 230
Output Current Limit VOUT = 90% VOUT(nom) ICL 379 500 mA
Ground Current
IOUT = 0 mA IQ25 35
mA
IOUT = 2 mA IGND 105
IOUT = 300 mA IGND 250
Shutdown Current VEN ≤ 0.4 V, VIN = 5.5 V IDIS 0.01 1 mA
EN Pin Threshold Voltage
High Threshold
Low Threshold VEN Voltage increasing
VEN Voltage decreasing VEN_HI
VEN_LO 0.9 0.4
V
EN Pin Input Current VEN = 5.5 V IEN 180 500 nA
Turn−on Time COUT = 1.0 mF, From assertion of VEN to 98%
VOUT(NOM) tON 200 ms
Power Supply Rejection Ratio VIN = 3.6 V, VOUT = 3.1 V
IOUT = 150 mA f = 100 Hz
f = 1 kHz
f = 10 kHz
PSRR 58
70
55
dB
Output Noise Voltage VIN = 3.6 V, VOUT = 3.1 V, IOUT = 300 mA
f = 100 Hz to 100 kHz VN22 mVrms
Thermal Shutdown Temperature Temperature increasing from TJ = +25°C TSD 160 °C
Thermal Shutdown Hysteresis Temperature falling from TSD TSDH 20 °C
Active Output Discharge Resistance VEN < 0.4 V Version A RDIS 1.2 kW
Version C 120 W
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
3. Performance guaranteed over the indicated operating temperature range by design and/or characterization. Production tested at
TJ = T A = 25°C. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
4. Characterized when VOUT falls 100 mV below the regulated voltage at VIN = VOUT(NOM) + 0.5 V.
NCP717
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Figure 1. Output Voltage vs. Temperature
VOUT = 1.2 V
−40 −20 0 14012010020 40 60 80
JUNCTION TEMPERATURE (°C)
OUTPUT VOLTAGE (V)
1.220
1.215
1.210
1.205
1.200
1.195
1.190
1.185
1.180
IOUT = 10 mA
IOUT = 300 mA
CIN = COUT = 1 mF
VIN = 2.3 V
VOUT(NOM) = 1.2 V
Figure 1. Output Voltage vs. Temperature
VOUT = 1.5 V
1.510
1.505
1.500
1.495
1.490
1.485
1.480
−40 −20 0 14012010020 40 60 80
JUNCTION TEMPERATURE (°C)
OUTPUT VOLTAGE (V)
IOUT = 10 mA
CIN = COUT = 1 mF
VIN = 2.3 V
VOUT(NOM) = 1.5 V
IOUT = 300 mA
1.515
1.520
Figure 2. Output Voltage vs. Temperature
VOUT = 1.85 V Figure 3. Output Voltage vs. Temperature
VOUT = 2.85 V
Figure 4. Output Voltage vs. Temperature
VOUT = 3.0 V
JUNCTION TEMPERATURE (°C)
OUTPUT VOLTAGE (V)
1.810
−40 −20 0 14012010020 40 60 80
CIN = COUT = 1 mF
VIN = 2.3 V
VOUT(NOM) = 1.8 V
IOUT = 10 mA
IOUT = 300 mA
2.860
−40 −20 0 14012010020 40 60 80
JUNCTION TEMPERATURE (°C)
OUTPUT VOLTAGE (V)
IOUT = 10 mA
IOUT = 300 mA
CIN = COUT = 1 mF
VIN = 3.35 V
VOUT(NOM) = 2.85 V
JUNCTION TEMPERATURE (°C)
OUTPUT VOLTAGE (V)
3.000
−40 −20 0 14012010020 40 60 80
2.995
2.990
2.985
2.980
2.975
2.970
IOUT = 10 mA
IOUT = 300 mA
CIN = COUT = 1 mF
VIN = 3.5 V
VOUT(NOM) = 3.0 V
1.805
1.800
1.795
1.790
1.785
1.780
1.775
2.855
2.850
2.845
2.840
2.835
2.830
Figure 5. Quiescent Current vs. Temperature
VOUT = 1.5 V
35
0 0.5 1 5.554.51.5 2 2.5 4
INPUT VOLTAGE (V)
QUIESCENT CURRENT (mA)
30
25
20
15
10
5
03.53
TA = 125°C
CIN = COUT = 1 mF
IOUT = 0 mA
VOUT(NOM) = 1.5 V
TA = 25°C
TA = −40°C
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Figure 6. Quiescent Current vs. Temperature
VOUT = 1.8 V
35
0 0.5 1 5.554.51.5 2 2.5 4
INPUT VOLTAGE (V)
QUIESCENT CURRENT (mA)
30
25
20
15
10
5
03.53
CIN = COUT = 1 mF
IOUT = 0 mA
VOUT(NOM) = 1.8 V
TA = 125°C
TA = 25°C
TA = −40°C
Figure 7. Quiescent Current vs. Temperature
VOUT = 2.8 V
35
0 0.5 1 5.554.51.5 2 2.5 4
INPUT VOLTAGE (V)
QUIESCENT CURRENT (mA)
30
25
20
15
10
5
03.53
CIN = COUT = 1 mF
IOUT = 0 mA
VOUT(NOM) = 2.8 V
TA = 125°C
TA = 25°C
TA = −40°C
Figure 8. Quiescent Current vs. Temperature
VOUT = 3.0 V
35
0 0.5 1 5.554.51.5 2 2.5 4
INPUT VOLTAGE (V)
QUIESCENT CURRENT (mA)
30
25
20
15
10
5
03.53
TA = 125°C
TA = 25°C
TA = −40°C
CIN = COUT = 1 mF
IOUT = 0 mA
VOUT(NOM) = 3.0 V
Figure 9. Quiescent Current vs. Temperature
VOUT = 3.1 V
35
0 0.5 1 5.554.51.5 2 2.5 4
INPUT VOLTAGE (V)
QUIESCENT CURRENT (mA)
30
25
20
15
10
5
03.53
TA = 125°C
TA = 25°C
TA = −40°C
CIN = COUT = 1 mF
IOUT = 0 mA
VOUT(NOM) = 3.1 V
Figure 10. Quiescent Current vs. Temperature
VOUT = 3.3 V
35
0 0.5 1 5.554.51.5 2 2.5 4
INPUT VOLTAGE (V)
QUIESCENT CURRENT (mA)
30
25
20
15
10
5
03.53
TA = 125°C
TA = 25°C
TA = −40°C
CIN = COUT = 1 mF
IOUT = 0 mA
VOUT(NOM) = 3.3 V
Figure 11. Output Voltage vs. Input Voltage
VOUT = 1.5 V
2.00
0 0.5 1 5.554.51.5 2 2.5 4
INPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
3.53
1.75
1.50
1.25
1.00
0.75
0.50
0.25
0.00
CIN = COUT = 1 mF
IOUT = 0 mA
VOUT(NOM) = 1.5 V
TA = 125°C
TA = 25°C
TA = −40°C
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Figure 12. Output Voltage vs. Input Voltage
VOUT = 1.8 V
CIN = COUT = 1 mF
IOUT = 0 mA
VOUT(NOM) = 1.8 V
TA = 125°C
TA = 25°C
TA = −40°C
2.00
0 0.5 1 5.554.51.5 2 2.5 4
INPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
3.53
1.75
1.50
1.25
1.00
0.75
0.50
0.25
0.00
Figure 13. Output Voltage vs. Input Voltage
VOUT = 2.8 V
CIN = COUT = 1 mF
IOUT = 0 mA
VOUT(NOM) = 2.8 V
3.50
0 0.5 1 5.554.51.5 2 2.5 4
INPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
3.53
TA = 125°C
TA = 25°C
TA = −40°C
3.00
2.50
2.00
1.50
1.00
0.50
0.00
Figure 14. Output Voltage vs. Input Voltage
VOUT = 3.0 V Figure 15. Output Voltage vs. Input Voltage
VOUT = 3.1 V
Figure 16. Output Voltage vs. Input Voltage
VOUT = 3.3 V
TA = 125°C
TA = 25°C
TA = −40°C
0 0.5 1 5.554.51.5 2 2.5 43.53
OUTPUT VOLTAGE (V)
3.50
3.00
2.50
2.00
1.50
1.00
0.50
0.00
CIN = COUT = 1 mF
IOUT = 0 mA
VOUT(NOM) = 3.0 V
INPUT VOLTAGE (V)
3.50
0 0.5 1 5.554.51.5 2 2.5 4
INPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
3.53
3.00
2.50
2.00
1.50
1.00
0.50
0.00
TA = 125°C
TA = 25°C
TA = −40°C
CIN = COUT = 1 mF
IOUT = 0 mA
VOUT(NOM) = 3.1 V
0 0.5 1 5.554.51.5 2 2.5 43.53
OUTPUT VOLTAGE (V)
4.00
INPUT VOLTAGE (V)
3.50
3.00
2.50
2.00
1.50
1.00
0.50
0.00
CIN = COUT = 1 mF
IOUT = 0 mA
VOUT(NOM) = 3.3 V
TA = 125°C
TA = 25°C
TA = −40°C
Figure 17. Dropout Voltage vs. Output Current
VOUT = 1.2 V
0
DROPOUT VOLTAGE (V)
0.9
OUTPUT CURRENT (A)
0.05 0.30.250.20.1 0.15
TA = 125°C
CIN = COUT = 1 mF
VOUT(NOM) = 1.2 V
TA = 25°C
TA = −40°C
0.8
0.7
0.6
0.5
0.4
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Figure 18. Dropout Voltage vs. Output Current
VOUT = 1.5 V Figure 19. Dropout Voltage vs. Output Current
VOUT = 1.85 V
0
DROPOUT VOLTAGE (V)
0.7
OUTPUT CURRENT (A)
0.05 0.30.250.20.1
0.6
0.5
0.4
0.3
0.2
0.1
0
TA = 125°C
CIN = COUT = 1 mF
VOUT(NOM) = 1.5 V
TA = 25°C
TA = −40°C
DROPOUT VOLTAGE (V)
0.45
OUTPUT CURRENT (A)
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
CIN = COUT = 1 mF
VOUT(NOM) = 1.85 V
TA = 125°C
TA = 25°C
TA = −40°C
0.15 0 0.05 0.30.250.20.1 0.15
Figure 20. Dropout Voltage vs. Output Current
VOUT = 2.8 V Figure 21. Dropout Voltage vs. Output Current
VOUT = 3.0 V
Figure 22. Dropout Voltage vs. Output Current
V
OUT
= 3.1 V Figure 23. Dropout Voltage vs. Output Curren
t
V
OUT
= 3.3 V
DROPOUT VOLTAGE (V)
0.3
OUTPUT CURRENT (A)
TA = 125°C
TA = 25°C
TA = −40°C
CIN = COUT = 1 mF
VOUT(NOM) = 2.8 V
OUTPUT CURRENT (A)
DROPOUT VOLTAGE (V)
CIN = COUT = 1 mF
VOUT(NOM) = 3.0 V
TA = 125°C
TA = 25°C
TA = −40°C
DROPOUT VOLTAGE (V)
OUTPUT CURRENT (A) 0OUTPUT CURRENT (A)
0.04 0
.2
0.160.120.08
0.200
0.175
0.150
0.125
0.100
0.075
0.050
0.025
0.000
DROPOUT VOLTAGE (V)
CIN = COUT = 1 mF
VOUT(NOM) = 3.3 V
TA = 125°C
TA = 25°C
TA = −40°C
CIN = COUT = 1 mF
VOUT(NOM) = 3.3 V
0 0.05 0.30.250.20.1 0.15
0.25
0.2
0.15
0.1
0.05
0
0.3
TA = 125°C
TA = 25°C
TA = −40°C
0 0.05 0.30.250.20.1 0.15
0.25
0.2
0.15
0.1
0.05
0
0.3
0.25
0.2
0.15
0.1
0.05
00 0.05 0
.3
0.250.20.1 0.15
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Figure 24. Short−Circuit Limit vs. Temperature
VOUT = 1.5 V Figure 25. Short−Circuit Limit vs. Temperature
VOUT = 1.85 V
JUNCTION TEMPERATURE (°C)
440
OUTPUT CURRENT (mA)
−40 −20 0 14012010020 40 60 80
420
400
380
360
340
320
300
Short−Circuit Current:
IOUT for VOUT = 0 V
CIN = COUT = 1 mF
VIN = 2.3 V
VOUT(NOM) = 1.5 V
Current Limit: IOUT for
VOUT = VOUT(NOM) − 0.1 V
JUNCTION TEMPERATURE (°C)
440
OUTPUT CURRENT (mA)
−40 −20 0 14012010020 40 60 80
420
400
380
360
340
320
300
Short−Circuit Current:
IOUT for VOUT = 0 V
Current Limit: IOUT for
VOUT = VOUT(NOM) − 0.1 V
CIN = COUT = 1 mF
VIN = 2.35 V
VOUT(NOM) = 1.85 V
Figure 26. Short−Circuit Limit vs. Temperature
VOUT = 2.85 V Figure 27. Short−Circuit Limit vs. Temperature
VOUT = 3.0 V
Figure 28. Short−Circuit Limit vs. Temperature
VOUT = 3.1 V Figure 29. Short−Circuit Limit vs. Temperature
VOUT = 3.3 V
JUNCTION TEMPERATURE (°C)
440
OUTPUT CURRENT (mA)
−40 −20 0 14012010020 40 60 80
420
400
380
360
340
320
300
Short−Circuit Current:
IOUT for VOUT = 0 V
CIN = COUT = 1 mF
VIN = 3.35 V
VOUT(NOM) = 2.85 V
Current Limit: IOUT for
VOUT = VOUT(NOM) − 0.1 V
JUNCTION TEMPERATURE (°C)
440
OUTPUT CURRENT (mA)
−40 −20 0 14012010020 40 60 80
420
400
380
360
340
320
300
Short−Circuit Current:
IOUT for VOUT = 0 V
Current Limit: IOUT for
VOUT = VOUT(NOM) − 0.1 V
CIN = COUT = 1 mF
VIN = 3.5 V
VOUT(NOM) = 3.0 V
JUNCTION TEMPERATURE (°C)
440
OUTPUT CURRENT (mA)
−40 −20 0 14012010020 40 60 80
420
400
380
360
340
320
460
Short−Circuit Current:
IOUT for VOUT = 0 V
CIN = COUT = 1 mF
VIN = 3.6 V
VOUT(NOM) = 3.1 V
Current Limit: IOUT for
VOUT = VOUT(NOM) − 0.1 V
JUNCTION TEMPERATURE (°C)
−40 −20 0 14012010020 40 60 80
440
420
400
380
360
340
320
460
OUTPUT CURRENT (mA)
Short−Circuit Current:
IOUT for VOUT = 0 V
Current Limit: IOUT for
VOUT = VOUT(NOM) − 0.1 V
CIN = COUT = 1 mF
VIN = 3.8 V
VOUT(NOM) = 3.3 V
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Figure 30. Line Regulation vs. Temperature
V
OUT
= 1.2 V
JUNCTION TEMPERATURE (°C)
−40 −20 0 14012010020 40 60 80
5.0
LINE REGULATION (mV)
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
Line Regulation from VIN = 2 V to 5.5 V
CIN = COUT = 1 mF
VOUT(NOM) = 1.2 V
IOUT = 10 mA
Figure 31. Line Regulation vs. Temperature
V
OUT
= 1.5 V
JUNCTION TEMPERATURE (°C)
−40 −20 0 14
0
12010020 40 60 80
5.0
LINE REGULATION (mV)
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
Line Regulation from VIN = 2 V to 5.5 V
CIN = COUT = 1 mF
VIN = 2.0 V to 5.5 V
VOUT(NOM) = 1.5 V
IOUT = 10 mA
Figure 32. Line Regulation vs. Temperature
VOUT = 1.85 V
−40 −20 0 14012010020 40 60 80
JUNCTION TEMPERATURE (°C)
5.0
LINE REGULATION (mV)
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
Line Regulation from VIN = 2.35 V to 5.5 V
CIN = COUT = 1 mF
VIN = 2.35 V to 5.5 V
VOUT(NOM) = 1.85 V
IOUT = 10 mA
Figure 33. Line Regulation vs. Temperature
V
OUT
= 2.85 V
JUNCTION TEMPERATURE (°C)
−40 −20 0 14
0
12010020 40 60 80
5.0
LINE REGULATION (mV)
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
Line Regulation from VIN = 3.35 V to 5.5 V
CIN = COUT = 1 mF
VIN = 3.35 V to 5.5 V
VOUT(NOM) = 2.85 V
IOUT = 10 mA
Figure 34. Line Regulation vs. Temperature
V
OUT
= 3.0 V Figure 35. Line Regulation vs. Temperature
VOUT = 3.1 V
−40 −20 0 14012010020 40 60 80
JUNCTION TEMPERATURE (°C)
5.0
LINE REGULATION (mV)
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
Line Regulation from VIN = 3.5 V to 5.5 V
CIN = COUT = 1 mF
VIN = 3.5 V to 5.5 V
VOUT(NOM) = 3.0 V
IOUT = 10 mA
JUNCTION TEMPERATURE (°C)
−40 −20 0 14
0
12010020 40 60 80
5.0
LINE REGULATION (mV)
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
Line Regulation from VIN = 3.6 V to 5.5 V
CIN = COUT = 1 mF
VIN = 3.6 V to 5.5 V
VOUT(NOM) = 3.1 V
IOUT = 10 mA
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Figure 36. Line Regulation vs. Temperature
VOUT = 3.3 V
−40 −20 0 14012010020 40 60 80
JUNCTION TEMPERATURE (°C)
5.0
LINE REGULATION (mV)
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
Line Regulation from VIN = 3.8 V to 5.5 V
CIN = COUT = 1 mF
VIN = 3.8 V to 5.5 V
VOUT(NOM) = 3.3 V
IOUT = 10 mA
Figure 37. Load Regulation vs. Temperature
VOUT = 1.2 V
JUNCTION TEMPERATURE (°C)
10.0
LOAD REGULATION (mV)
−40 −20 0 14012010020 40 60 80
9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
Load Regulation from IOUT = 1 mA to 300 mA
CIN = COUT = 1 mF
VIN = 2.3 V
VOUT(NOM) = 1.2 V
Figure 38. Load Regulation vs. Temperature
VOUT = 1.5 V Figure 39. Load Regulation vs. Temperature
VOUT = 1.8 V
JUNCTION TEMPERATURE (°C)
5.0
LOAD REGULATION (mV)
Load Regulation from IOUT = 1 mA to 300 mA
CIN = COUT = 1 mF
VIN = 2.3 V
VOUT(NOM) = 1.5 V
−40 −20 0 14012010020 40 60 80 JUNCTION TEMPERATURE (°C)
LOAD REGULATION (mV)
Load Regulation from IOUT = 1 mA to 300 mA
CIN = COUT = 1 mF
VIN = 2.3 V
VOUT(NOM) = 1.8 V
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
−40 −20 0 14012010020 40 60 80
Figure 40. Load Regulation vs. Temperature
VOUT = 2.85 V Figure 41. Ground Current vs Output Current
JUNCTION TEMPERATURE (°C)
5.0
LOAD REGULATION (mV)
Load Regulation from IOUT = 1 mA to 300 mA
CIN = COUT = 1 mF
VIN = 3.35 V
VOUT(NOM) = 1.5 V
−40 −20 0 14012010020 40 60 80 OUTPUT CURRENT (mA)
GROUND CURRENT (mA)
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
200
TA = 125°C
CIN = COUT = 1 mF
VIN = VOUT(NOM) + 0.5 V
TA = 25°C
TA = −40°C
180
160
140
120
100
80
60
40
20
0012 109834567
NCP717
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11
Figure 42. Ground Current vs. Temperature Figure 43. Stability vs. Output Capacitor ESR
Figure 44. PSRR vs. Frequency
VOUT = 1.5 V Figure 45. PSRR vs. Frequency
VOUT = 1.85 V
JUNCTION TEMPERATURE (°C)
500
−40 −20 0 14012010020 40 60 80
GROUND CURRENT (mA)
CIN = COUT = 1 mF
VIN = VOUT(NOM) + 0.5 V or 2.3 V
IOUT = 300 mA
VOUT(NOM) = 1.5 V
VOUT(NOM) = 1.85 V
VOUT(NOM) = 3.3 V
OUTPUT CURRENT (mA)
100
CAPACITOR ESR (W)
0
10
1
0.1
0.01 100 200 300
UNSTABLE OPERATION
STABLE OPERATION
VOUT = 1.2 V
VOUT = 3.3 V
FREQUENCY (Hz)
90
10
PSRR (dB)
80
70
60
50
40
30
20
10
0100 1k 10k 100k 1M 10M
COUT = 1 mF
CIN = none,
VIN = 2.0 V ± 50 mVAC
VOUT(NOM) = 1.5 V
IOUT = 1 mA
IOUT = 10 mA
IOUT = 150 mA
FREQUENCY (Hz)
10 100 1k 10k 100k 1M 10M
90
PSRR (dB)
80
70
60
50
40
30
20
10
0
100
IOUT = 150 mA
IOUT = 10 mA
IOUT = 1 mA
COUT = 1 mF
CIN = none,
VIN = 2.35 V ± 50 mVAC
VOUT(NOM) = 1.85 V
450
400
350
300
250
200
VOUT(NOM) = 1.2 V
Figure 46. PSRR vs. Frequency
VOUT = 3.0 V Figure 47. PSRR vs. Frequency
VOUT = 3.1 V
FREQUENCY (Hz)
10 100 1k 10k 100k 1M 10M
90
PSRR (dB)
80
70
60
50
40
30
20
10
0
100
IOUT = 150 mA
IOUT = 10 mA
IOUT = 1 mA
COUT = 1 mF
CIN = none,
VIN = 3.5 V ± 50 mVAC
VOUT(NOM) = 3.0 V
FREQUENCY (Hz)
10 100 1k 10k 100k 1M 10M
90
PSRR (dB)
80
70
60
50
40
30
20
10
0
IOUT = 150 mA
IOUT = 1 mA
IOUT = 10 mA
COUT = 1 mF
CIN = none,
VIN = 3.6 V ± 50 mVAC
VOUT(NOM) = 3.1 V
NCP717
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12
Figure 48. Output Noise Density vs. Frequency
VOUT = 1.5 V Figure 49. Output Noise Density vs. Frequency
VOUT = 3.1 V
Figure 50. Enable Input Current vs. Enable
Voltage Figure 51. Enable Threshold Voltage vs.
Temperature
FREQUENCY (Hz)
10 100 1k 10k 100k 1M
OUTPUT VOLTAGE NOISE (mV/rtHz)
1.000
0.100
0.010
0.001 IOUT = 300 mA
IOUT = 10 mA
IOUT = 1 mA
CIN = COUT = 1 mF
VIN = 2.5 V
VOUT = 1.5 V
MLCC, X7R
1206 size
FREQUENCY (Hz)
10 100 1k 10k 100k 1M
OUTPUT VOLTAGE NOISE (mV/rtHz)
1.000
0.100
0.010
0.001
CIN = COUT = 1 mF
VIN = 3.6 V
VOUT = 3.1 V
MLCC, X7R
1206 size
IOUT = 10 mA
IOUT = 1 mA
IOUT = 300 mA
ENABLE VOLTAGE (V)
0 0.5 1 3.5 4.5 5 5.5
ENABLE CURRENT (mA)
0.35
0.3
0.25
0.2
0.15
0.1
0.05
0431.5 2 2.5
TA = 125°C
TA = 25°C
TA = −40°C
CIN = COUT = 1 mF
VIN = 2 V
VOUT(NOM) = 1.5 V
ENABLE CURRENT (mA)
JUNCTION TEMPERATURE (°C)
−40 −20 100 120 140
0.9
806002040
0.85
0.8
0.75
0.7
0.65
0.6
0.55
0.5
VIN = 2 V
CIN = COUT = 1 mF
VOUT(NOM) = 1.5 V
VEN = Low to High
VEN = High to Low
10.000 10.000
Figure 52. Shutdown Current vs. Temperature Figure 53. VOUT Turn−on Time vs.
Temperature
SHUTDOWN CURRENT (mA)
JUNCTION TEMPERATURE (°C)
−40 −20 100 120 140
0.2
806002040
0.16
0.12
0.08
0.04
0
CIN = COUT = 1 mF
VIN = VOUT(NOM) + 0.5 V
VEN = 0 V
VOUT TURN−ON TIME (ms)
JUNCTION TEMPERATURE (°C)
−40 −20 100 120 140
300
806002040
280
260
240
220
200
180
160
140
120
100
CIN = COUT = 1 mF
VIN = VOUT(NOM) + 0.5 V
VEN = Step from 0 V to 1 V / 1 ms
VOUT = 3.3 V
VOUT = 1.5 V
NCP717
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13
APPLICATIONS INFORMATION
The NCP717 is a high performance, small package size,
300 mA LDO voltage regulator. This device delivers very
good noise and dynamic performance. Thanks to its adaptive
ground current feature the device consumes only 25 mA of
quiescent current at no−load condition. The regulator
features very−low noise of 22 mVRMS, PSRR of typ. 70 dB
at 1 kHz and very good load/line transient response. The
device is an ideal choice for space constrained portable
applications.
A logic EN input provides ON/OFF control of the output
voltage. When the EN is low the device consumes as low as
typ. 10 nA from the IN pin.
The device is fully protected in case of output overload,
output short circuit condition and overheating, assuring a
very robust design.
Input Capacitor Selection (CIN)
It is recommended to connect a minimum of 1 μF Ceramic
X5R or X7R capacitor close to the IN pin of the device.
Larger input capacitors may be necessary if fast and large
load transients are encountered in the application. There is
no requirement for the min./max. ESR of the input capacitor
but it is recommended to use ceramic capacitors for their low
ESR and ESL.
Output Capacitor Selection (COUT)
The NCP717 is designed to be stable with small 1.0 mF and
larger ceramic capacitors on the output. The minimum
effective output capacitance for which the LDO remains
stable i s 100 nF. The safety margin is provided to account for
capacitance variations due to DC bias voltage, temperature,
initial tolerance. There is no requirement for the minimum
value of Equivalent Series Resistance (ESR) for the COUT
but the maximum value of ESR should be less than 700 mΩ.
Larger output capacitors could be used to improve the load
transient response or high frequency PSRR characteristics.
It is not recommended to use tantalum capacitors on the
output due to their large ESR. The equivalent series
resistance of tantalum capacitors is also strongly dependent
on the temperature, increasing at low temperature. The
tantalum capacitors are generally more costly than ceramic
capacitors.
No−load Operation
The regulator remains stable and regulates the output
voltage properly within the ±2% tolerance limits even with
no external load applied to the output.
Enable Operation
The NCP717 uses the EN pin to enable/disable its output
and to control the active discharge function. If the EN pin
voltage is < 0.4 V the device is guaranteed to be disabled.
The pass transistor is turned*off so that there is virtually no
current flow between the IN and OUT. In case of the option
equipped with active discharge − the active discharge
transistor i s turned−on and the output voltage VOUT is pulled
to GND through a 1.2 kW resistor (A version) or 120 W
(C version). In the disable state the device consumes as low
as typ. 10 nA from the VIN. If the EN pin voltage > 0.9 V the
device is guaranteed to be enabled. The NCP717 regulates
the output voltage and the active discharge transistor is
turned−off. The EN pin has an internal pull−down current
source with typ. value of 180 nA which assures that the
device is turned−off when the EN pin is not connected. A
build i n 5 6 m V o f h ysteresis a nd d eglitch t ime i n t he E N b lock
prevents from periodic on/off oscillations that can occur due
to noise on EN line. In the case that the EN function isn’t
required the EN pin should be tied directly to IN.
Reverse Current
The PMOS pass transistor has an inherent body diode
which will be forward biased in the case that VOUT > VIN.
Due to this fact in cases where the extended reverse current
condition is anticipated the device may require additional
external protection.
Output Current Limit
Output Current is internally limited within the IC to a
typical 379 mA. The NCP717 will source this amount of
current measured with the output voltage 100 mV lower
than the nominal VOUT. If the Output Voltage is directly
shorted to ground (VOUT = 0 V), the short circuit protection
will limit the output current to 390 mA (typ). The current
limit and short circuit protection will work properly up to
VIN =5.5 V at TA = 25°C. There is no limitation for the short
circuit duration.
Thermal Shutdown
When the die temperature exceeds the Thermal Shutdown
threshold (TSD − 160°C typical), Thermal Shutdown event
is detected and the device is disabled. The IC will remain in
this state until the die temperature decreases below the
Thermal Shutdown Reset threshold (TSDU − 140°C
typical). Once the IC temperature falls below the 140°C the
LDO is enabled again. The thermal shutdown feature
provides protection from a catastrophic device failure due to
accidental overheating. This protection is not intended to be
used as a substitute for proper heat sinking.
Power Dissipation
As power dissipated in the NCP717 increases, it might
become necessary to provide some thermal relief. The
maximum power dissipation supported by the device is
dependent upon board design and layout. Mounting pad
configuration on the PCB, the board material, and the
ambient temperature affect the rate of junction temperature
rise for the part. The maximum power dissipation the
NCP717 can handle is given by:
PD(MAX) +ƪ125 *TAƫ
qJA
(eq. 1)
NCP717
www.onsemi.com
14
For reliable operation junction temperature should be
limited to +125°C.
The power dissipated by the NCP717 for given
application conditions can be calculated as follows:
PD(MAX) +VINIGND )IOUTǒVIN *VOUTǓ(eq. 2)
Figure 54 shows the typical values of θJA vs. heat
spreading area.
Load Regulation
The NCP717 features very good load regulation of typical
3.6 mV in the 0 mA to 300 mA range. In order to achieve this
very good load regulation a special attention to PCB design
is necessary. The trace resistance from the OUT pin to the
point of load can easily approach 100 mW which will cause
a 68 mV voltage drop at full load current, deteriorating the
excellent load regulation.
Line Regulation
The IC features very good line regulation of 0.4 mV/V
measured from VIN = VOUT + 0.5 V to 5.5 V.
Power Supply Rejection Ratio
At low frequencies the PSRR is mainly determined by the
feedback open−loop gain. At higher frequencies in the range
100 kHz − 10 MHz it can be tuned by the selection of COUT
capacitor and proper PCB layout.
0
0,1
0,2
0,3
0,4
0,5
0,6
0,7
0,8
0,9
50
100
150
200
250
300
350
400
450
500
0 100 200 300 400 500 600
PD(MAX) (W)
qJA (oC/W)
COPPER AREA (mm
2)
Theta JA curve with PCB cu thk 1,0 oz
Theta JA curve with PCB cu thk 2,0 oz
Power curve with PCB cu thk 2,0 oz
Power curve with PCB cu thk 1,0 oz
Figure 54. Thermal Parameters vs. Copper Area
Output Noise
The IC is designed for very−low output voltage noise. The
typical noise performance of 22 mVRMS makes the device
suitable for noise sensitive applications.
Internal Soft Start
The Internal Soft−Start circuitry will limit the inrush
current during the LDO turn−on phase. Please refer to
typical characteristics section for typical inrush current
values. The soft−start function prevents from any output
voltage overshoots and assures monotonic ramp−up of the
output voltage.
PCB Layout Recommendations
To obtain good transient performance and good regulation
characteristics place CIN and COUT capacitors close to the
device pins and make the PCB traces wide. In order to
minimize the solution size use 0402 capacitors. Larger
copper area connected to the pins will also improve the
device thermal resistance. The actual power dissipation can
be calculated by the formula given in Equation 2.
NCP717
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15
ORDERING INFORMATION
Device Voltage
Option Marking Marking
Rotation Option Package Shipping†
NCP717AMX150TCG 1.5 V R 0°
With active output
discharge function
RDIS=1.2 kW
XDFN4
(Pb-Free) 3000 / Tape & Reel
NCP717AMX180TCG 1.8 V T 0°
NCP717AMX185TCG 1.85 V V 0°
NCP717AMX190TCG 1.9 V 6 0°
NCP717AMX250TCG 2.5 V T 180°
NCP717AMX280TCG 2.8 V Y 0°
NCP717AMX285TCG 2.85 V 2 0°
NCP717AMX300TCG 3.0 V 3 0°
NCP717AMX310TCG 3.1 V 4 0°
NCP717AMX330TCG 3.3 V 5 0°
NCP717BMX150TCG 1.5 V R 90°
Without active output
discharge function
NCP717BMX180TCG 1.8 V T 90°
NCP717BMX185TCG 1.85 V V 90°
NCP717BMX190TCG 1.9 V 6 90°
NCP717BMX250TCG 2.5 V T 270°
NCP717BMX280TCG 2.8 V Y 90°
NCP717BMX285TCG 2.85 V 2 90°
NCP717BMX300TCG 3.0 V 3 90°
NCP717BMX310TCG 3.1 V 4 90°
NCP717BMX330TCG 3.3 V 5 90°
NCP717CMX135TCG 1.35 V D 270°
With active output
discharge function
RDIS=120 W
NCP717CMX150TCG 1.5 V L 270°
NCP717CMX180TCG 1.8 V P 270°
NCP717CMX185TCG 1.85 V Q 270°
NCP717CMX190TCG 1.9 V R 270°
NCP717CMX220TCG 2.2 V A 270°
NCP717CMX250TCG 2.5 V V 270°
NCP717CMX280TCG 2.8 V Y 270°
NCP717CMX285TBG 2.85 V 2 270°
NCP717CMX285TCG 2.85 V 2 270°
NCP717CMX300TCG 3.0 V 3 270°
NCP717CMX310TCG 3.1 V 4 270°
NCP717CMX320TCG 3.2 V 5 270°
NCP717CMX330TBG 3.3 V 6 270°
NCP717CMX330TCG 3.3 V 6 270°
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
NCP717
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16
PACKAGE DIMENSIONS
XDFN4 1.0x1.0, 0.65P
CASE 711AJ
ISSUE O
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ASME Y14.5M, 1994.
2. CONTROLLING DIMENSION: MILLIMETERS.
3. DIMENSION b APPLIES TO PLATED TERMINAL
AND IS MEASURED BETWEEN 0.15 AND
0.20 mm FROM THE TERMINAL TIPS.
4. COPLANARITY APPLIES TO THE EXPOSED
PAD AS WELL AS THE TERMINALS.
ÉÉ
ÉÉ
A
B
E
D
D2
BOTTOM VIEW
b
e
4X
NOTE 3
2X 0.05 C
PIN ONE
REFERENCE
TOP VIEW
2X 0.05 C
A
A1
(A3)
0.05 C
0.05 C
CSEATING
PLANE
SIDE VIEW
L
4X
12
DIM MIN MAX
MILLIMETERS
A0.33 0.43
A1 0.00 0.05
A3 0.10 REF
b0.15 0.25
D1.00 BSC
D2 0.43 0.53
E1.00 BSC
e0.65 BSC
L0.20 0.30
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
MOUNTING FOOTPRINT*
1.20
0.26
0.24 4X
DIMENSIONS: MILLIMETERS
0.39
RECOMMENDED
PACKAGE
OUTLINE
NOTE 4
e/2
D2
455
A
M
0.05 BC
43
0.65
PITCH
DET AIL A
4X
b2 0.02 0.12
L2 0.07 0.17
4X
0.52
2X
0.11
4X
L24X
DETAIL A
b24X
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UBLICATION ORDERING INFORMATION
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Europe, Middle East and Africa Technical Support:
Phone: 421 33 790 2910
Japan Customer Focus Center
Phone: 81−3−5817−1050
NCP717/D
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