ZMR250FTA - Diodes [Zetex] - Datasheet.Support

ZMR Series

Document number: DS32195 Rev. 10 - 2 1 of 11

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FIXED 2.5, 3.3 AND 5 VOLT MINIATURE VOLTAG E REGULATORS

Description

The ZMR series of three terminal fixed positive voltage

regulators feature internal current limit and will shut

down under thermal overload conditions making the

devices difficult to destroy.

The circuit design offers an exceptionally low

quiescent current, only 30μA for the 2.5V device, ideal

for low power applications. The initial devices in the

series regulate to 2.5 or 5V with a drive capability up to

50mA.

The device is designed with space saving in mind and

is available in the small outline SOT23 package. The

ZMR250 has expanded its input voltage range to

22.5V and the ZMR500 has expanded its input voltage

range to 25V; equaling that of the ZMR25H and

ZMR50H respectively.

The ZMR330 provides a 3.3V output over an input

range of 5V to 24V.

Features

• Small outline SOT23 package

• 2.5V, 3.3V and 5V output

• Output current up to 50mA

• Very low quiesent current (30μA)

• Unconditionally stable

• Internal short circuit current limit

Applications

• Small outline SOT23 package

• 2.5V, 3.3V, 5V output

• Output current up to 50mA

• Very low quiescent current (30µA)

• Unconditionally stable

• Internal short circuit current limit

• “Green” molding compound (No Br, Sb)

Pin Assignments

SOT23

Package Suffix - F

(Top View)

TO92

Package Suffix - C

(Underside View)

Typical Application Circuit

GND

OUT

IN

2

3

1

VIN

VOUT

Gnd

ZMR Series

Document number: DS32195 Rev. 10 - 2 2 of 11

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Absolute Maximum Ratings

Paramete

r

Rating Unit

Input Voltage

ZMR250

ZMR330

ZMR500

22.5

24

25

V

Power Dissipation (TAMB = 25°C) (Note 3)

SOT23

500 mW

Output Current (IO) 100 mA

Ambient Temperature -55 to 125 °C

Maximum Junction Temperatu r e 125 °C

Storage Temperature -65 to 150 °C

Notes: 1. The maximum operating input voltage and output current of the device will be governed by the maximum power

dissipation of the selected package. Maximum package power dissipation is specified at 25°C and must be linearly

derated to zero at Tamb =125°C.

2. The following data represents pulse test conditions with junction temperatures as indicated at the initiation of the test.

Continuous operation of the devices with the stated conditions might exceed the power dissipation limits of the chosen

package.

3. Maximum power dissipation for the SOT23 package, is calculated assuming that the device is mounted on a ceramic

substrate measuring 15 x 15 x 0.6mm.

Recommended Operating Conditions

Input Voltage Range Min. Max. Unit

ZMR250 4.2 22.5 V

ZMR330 4.8 24 V

ZMR500 7.0 25 V

ZMR Series

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Electrical Characteristics (unless otherwise stated): TJ = 25°C, IO = 10mA, VIN = 6.5V

ZMR250

Symbol Parameter Condition Min. Typ. Max. Unit

VO Output voltage

2.438 2.5 2.563 V

IO = 0 to 50mA

TJ = -55 to 125°C 2.360 2.640 V

VIN = 4.5 to 22.5V

IO = 0 to 50mA

TJ = -55 to 125°C 2.630 2.640 V

ΔVO Line regulation VIN = 4.5 to 22.5V 5 15 mV

ΔVO Load regulation IO = 0 to 50mA

IO = 0 to 10mA 20

12 30 mV

lS Supply current TJ = -55 to 125°C 30 40 µA

ΔlS Supply current change IO = 0 to 50mA

VIN = 4.5 to 22.5V 1

2 ±10

10 µA

VN Output noise voltage f = 10Hz to 10kHz 65 µV rms

ΔVIN /_VO Ripple rejection VIN = 6.3 to 18V

f = 120Hz 55 75 dB

VIN Input voltage required to

maintain regulation 3.9 V

ΔVO /ΔT Average temperature

coefficient of VO IO = 5.0mA

TJ = -55 to 125°C 0.275 0.700 mV/°C

ZMR Series

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Electrical Characteristics (unless otherwise stated): TJ = 25°C, IO = 10mA, VIN = 7V

ZMR330

Symbol Parameter Condition Min. Typ. Max. Unit

VO Output voltage

3.217 3.3 3.383 V

IO = 0 to 50mA

TJ = -55 to 125°C 3.148 3.393 V

VIN = 5 to 24V

IO = 0 to 50mA

TJ = -55 to 125°C 3.148 3.408 V

ΔVO Line regulation VIN = 5 to 24V 5 15 mV

ΔVO Load regulation IO = 0 to 50mA

IO = 0 to 10mA 20

13 30 mV

lS Supply current TJ = -55 to 125°C 120 170 µA

ΔlS Supply current change IO = 0 to 50mA

VIN = 5 to 20V 5

2 10

10 µA

VN Output noise voltage f = 10Hz to 10kHz 80 µV rms

ΔVIN /_VO Ripple rejection VIN = 6 to 20V

f = 120Hz 55 dB

VIN Input voltage required to

maintain regulation VOUT = 3.217V 4.74 V

ZMR Series

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Electrical Characteristics (unless otherwise stated): TJ = 25°C, IO = 10mA, VIN = 10V

ZMR500

Symbol Parameter Condition Min. Typ. Max. Unit

VO Output voltage

4.785 5 5.125 V

IO = 0 to 50mA

TJ = -55 to 125°C 4.780 5.160 V

VIN = 7 to 25V

IO = 0 to 50mA

TJ = -55 to 125°C 4.780 5.175 V

ΔVO Line regulation VIN = 7 to 25V 5 15 mV

ΔVO Load regulation IO = 0 to 50mA

IO = 0 to 10mA 25

15 40 mV

lS Supply current TJ = -55 to 125°C 50 70 µA

ΔlS Supply current change IO = 0 to 50mA

VIN = 7 to 25V 1

2 ±10

10 µA

VN Output noise voltage f = 10Hz to 10kHz 90 µV rms

ΔVIN /_VO Ripple rejection VIN = 8 to 18V

f = 120Hz 55 72 dB

VIN Input voltage required to

maintain regulation 6.7 V

ΔVO /ΔT Average temperature

coefficient of VO IO = 5.0mA

TJ = -55 to 125°C 0.275 0.700 mV/°C

ZMR Series

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Typical Characteristics

-50 -25 025 50 75 100 125

2.5

2.0

1.5

1.0

0.5

0

Drop-Out Voltage (V)

Drop-Out Voltage v Temperature

Quiescent Current v Temperature

-50 -25 025 50 75 100 125

Temperature ( °C)

Output Voltage Temperature

0

20

40

2468

10 12 14 16 18 20

60

10

30

50

Input Voltage (V)

Quiescent Current v Voltage

28

0.1 110 100

27

29

47

48

49

50

30

75

Quiescent Current v Temperature

Quiescent Current (µA)

-50 -25

26

28

02550

32

30

34

125100 40

44

48

52

56

60

Output Current Temperature ( °C)

Temperature ( °C) Temperature ( °C)

5.00

5.02

4.98

4.96

2.50

2.48

2.46

2.52

ZMR500

ZMR250

Output Voltage

Quiescent Current v Output Current

I

o

=5mA

V

in

=V

o

+4

I

o

=5mA

V

in

=V

o

+4

I

o

=10mA

I

o

=0

V

in

=V

o

+4

I

o

=0

V

in

=V

o

+4

I

o

=0

V

in

=V

o

+4

I

o

=0

V

in

=V

o

+4

I

o

=10mA

Quiescent Current (µA) Quiescent Current (µA)

Quiescent Current (µA)

ZMR250

ZMR500

ZMR250 ZMR500

ZMR250

ZMR500

ZMR Series

Document number: DS32195 Rev. 10 - 2 7 of 11

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Typical Characteristics (cont.)

0Time (µs)

Line Transient Response

Load Current

0102030 40 50

Time (µs)

Output Voltage Deviation (V)

Load Transient Response

0

10

20

30

40

50

60

70

80

90

10 100 1K 10K 100K

Ripple Frequency (Hz)

Ripple Rejection (dB)

100 1K 10K 100K

10

1.0

0.1

0.01

Frequency (Hz)

Output Impedance ( Ω)

I=10mA

V=V +4V

O

IN OUT

Output Impedance v Frequency Ripple Rejection v Ripple Frequency

ZMR500

ZMR250

ZMR500

ZMR250

ZMR500

20 40 60 80 100

0

10mA

ZMR500

ZMR250

Vin

0

-0.4

0

-0.4

0.4

0V

5V

0

0.4

-0.4

0

-0.4

0.4

Output Voltage Deviation (V)

0

1

2

Power Dissipation (mW)

Power Derating

o

I=2mA

-50 -25 025 50 75 100 125

Temperature (°C)

Io= 10mA

SOT23

Surface Mount Devices

C

OUT

=0

V

IN

=V

o

+4

dV

IN

/dt=5V/µs

C

OUT

=0

V

IN

=V

o

+4

dI

o

/dt=1A/µs

ZMR Series

Document number: DS32195 Rev. 10 - 2 8 of 11

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Ordering Information

Part Number Package Part Mark Status Reel Size

(inches) Quantity

per reel Tape Width

(mm)

ZMR25HFTA SOT23 25X Obsolete

replaced by

ZMR250FTA 7” 3000 8mm

ZMR50HFTA SOT23 50R Obsolete

replaced by

ZMR500FTA 7” 3000 8mm

ZMR250FTA SOT23 25K Released 7” 3000 8mm

ZMR330FTA SOT23 330 Released 7” 3000 8mm

ZMR330F-7* SOT23 330 Released 7” 3000 8mm

ZMT500FTA SOT23 50K Released 7” 3000 8mm

Notes: *ZMR330F-7 is in Halogen free molding compound

All TO92 variants (ZMRxxxC) are obsolete. Closest replacements are the ZMRxxxFTA.

ZMR Series

Document number: DS32195 Rev. 10 - 2 9 of 11

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Package Outline Dimensions

SOT23

Dim. Millimeters Inches Dim. Millimeters Inches

Min. Max. Min. Max. Min. Max. Min. Max.

A - 1.12 - 0.044 e1 1.90 NOM 0.075 NOM

A1 0.01 0.10 0.0004 0.004 E 2.10 2.64 0.083 0.104

b 0.30 0.50 0.012 0.020 E1 1.20 1.40 0.047 0.055

c 0.085 0.20 0.003 0.008 L 0.25 0.60 0.0098 0.0236

D 2.80 3.04 0.110 0.120 L1 0.45 0.62 0.018 0.024

e 0.95 NOM 0.037 NOM - - - - -

Notes: Controlling dimensions are in millimeters. Approximate dimensions are provided in inches

E

e

L

e1

D

A

c

E1

L1

A1

b

3 leads

ZMR Series

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Package Outline Dimensions (cont.)

TO92

Dim. Millimeters Inches Dim. Millimeters Inches

Min. Max. Min. Max. Min. Max. Min. Max.

A 4.32 4.95 0.170 0.195 R 2.16 2.41 0.085 0.095

b 0.36 0.51 0.014 0.020 S1 1.14 1.52 0.045 0.060

E 3.30 3.94 0.130 0.155 W0.41 0.56 0.016 0.022

e 2.41 2.67 0.095 0.105 D 4.45 4.95 0.175 0.195

e1 1.14 1.40 0.045 0.055 *° 4° 6° 4° 6°

L 12.70 15.49 0.500 0.610

Notes: Controlling dimensions are in millimeters. Approximate dimensions are provided in inches

Obsolete

ZMR Series

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