LM4050BEX3-2.5+T - Maxim Integrated

General Description

The LM4050/LM4051 are precision two-terminal, shunt-

mode, bandgap voltage references available in fixed

reverse breakdown voltages of 1.225V, 2.048V, 2.500V,

3.000V, 3.3V, 4.096V, and 5.000V. Ideal for space-critical

applications, the LM4050/LM4051 are offered in the sub

miniature 3-pin SC70 surface-mount packages (1.8mm

x 1.8mm), 50% smaller than comparable devices in

SOT23 surface-mount package (SOT23 versions are also

avail able).

Laser-trimmed resistors ensure excellent initial accuracy.

With a 50ppm/°C temperature coefficient, these devices

are offered in three grades of initial accuracy ranging from

0.1% to 0.5%. The LM4050/LM4051 have a 60µA to 15mA

shunt-current capability with low dynamic impedance,

ensuring stable reverse breakdown voltage accuracy over

a wide range of operating temperatures and currents. The

LM4050/LM4051 do not require an external stabilizing

capacitor while ensuring stability with any capacitive loads.

The LM4050/LM4051 specifications are guaranteed over

the temperature range of -40°C to +125°C.

Applications

●Portable, Battery-Powered Equipment

●Notebook Computers

●Cell Phones

●Industrial Process Controls

Features

●50ppm/°C (max) Temperature Coefficient Guaranteed

over the -40°C to +125°C Temperature Range

●Ultra-Small 3-Pin SC70 Package

●0.1% (max) Initial Accuracy

●Wide Operating Current Range: 60µA to 15mA

●Low 28µVRMS Output Noise (10Hz to 10kHz)

●1.225V, 2.048V, 2.500V, 3.000V, 3.3V, 4.096V, and

5.000V Fixed Reverse Breakdown Voltages

●No Output Capacitors Required

●Tolerates Capacitive Loads

Ordering Information appears at end of data sheet.

19-2563; Rev 8; 11/14

3 N.C.*

LM4050

LM4051

SC70/SOT23

TOP VIEW

*PIN 3 MUST BE LEFT UNCONNECTED OR CONNECTED TO PIN 2.

LM4050

ILOAD

ISHUNT

ISHUNT + ILOAD

LM4050/LM4051 50ppm/°C Precision Micropower Shunt Voltage

References with Multiple Reverse Breakdown Voltages

Pin Conguration

Reverse Current (cathode to anode)..................................20mA

Forward Current (anode to cathode) ..................................10mA

Continuous Power Dissipation (TA = +70°C)

3-Pin SC70 (derate 2.17mW/°C above +70°C) ...........174mW

3-Pin SOT23 (derate 4.01mW/°C above +70°C) ........320mW

Operating Temperature Range

LM4050/LM4051_E_ _ _ .............................. -40°C to +125°C

Storage Temperature Range ............................ -65°C to +150°C

Junction Temperature ...................................................... +150°C

Lead Temperature (soldering, 10s)..................................+300°C

Soldering Temperature (reflow) ....................................... +260°C

(IR = 100µA, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Reverse Breakdown Voltage VRTA = +25°C

LM4051A (0.1%) 1.2238 1.2250 1.2262

VLM4051B (0.2%) 1.2226 1.2250 1.2275

LM4051C (0.5%) 1.2189 1.2250 1.2311

Reverse Breakdown Voltage

Tolerance (Note 2) VRTOL

LM4051A ±1.2 ±7

mVLM4051B ±2.4 ±9

LM4051C ±6.0 ±12

Minimum Operating Current IRMIN 45 60 µA

Average Reverse Voltage

Temperature Coefcient

(Notes 2, 3)

DVR/DT

IR = 10mA ±20

ppm/°C

IR = 1mA ±15 ±50

IR = 100µA ±15

Reverse Breakdown Voltage

Change with Operating

Current Change

IRMIN ≤ IR ≤ 1mA 0.7 1.5

1mA ≤ IR ≤ 12mA 2.5 8.0

Reverse Dynamic

Impedance (Note 3) ZRIR = 1mA, f = 120Hz, IAC = 0.1IR 0.5 1.5 Ω

Wideband Noise eNIR = 100µA, 10Hz ≤ f ≤ 10kHz 20 µVRMS

Reverse Breakdown Voltage

Long-Term Stability ∆VRT = 1000h 120 ppm

LM4050/LM4051 50ppm/°C Precision Micropower Shunt Voltage

References with Multiple Reverse Breakdown Voltages

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Absolute Maximum Ratings

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these

or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect

device reliability.

Electrical Characteristics —1.225V

(IR = 100µA, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Reverse Breakdown Voltage VRTA = +25°C

LM4050A (0.1%) 2.0460 2.0480 2.0500

VLM4050B (0.2%) 2.0439 2.0480 2.0521

LM4050C (0.5%) 2.0378 2.0480 2.0582

Reverse Breakdown Voltage

Tolerance (Note 2) VRTOL

LM4050A ±2.0 ±12

mVLM4050B ±4.0 ±14

LM4050C ±10 ±20

Minimum Operating Current IRMIN 45 65 µA

Average Reverse Voltage

Temperature Coefcient

(Notes 2, 3)

DVR/DT

IR = 10mA ±20

ppm/°CIR = 1mA ±15 ±50

IR = 100µA ±15

Reverse Breakdown Voltage

Change with Operating

Current Change

IRMIN ≤ IR ≤ 1mA 0.3 1.0

1mA ≤ IR ≤ 15mA 2.5 8.0

Reverse Dynamic

Impedance (Note 3) ZRIR = 1mA, f = 120Hz,

IAC = 0.1IR

LM4050A/B 0.3 0.8 Ω

LM4050C 0.3 0.9

Wideband Noise eNIR = 100µA, 10Hz ≤ f ≤ 10kHz 28 µVRMS

Reverse Breakdown Voltage

Long-Term Stability DVRT = 1000h 120 ppm

LM4050/LM4051 50ppm/°C Precision Micropower Shunt Voltage

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Electrical Characteristics —2.048V

(IR = 100µA, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Reverse Breakdown Voltage VRTA = +25°C

LM4050A (0.1%) 2.4975 2.5000 2.5025

VLM4050B (0.2%) 2.4950 2.5000 2.5050

LM4050C (0.5%) 2.4875 2.5000 2.5125

Reverse Breakdown Voltage

Tolerance (Note 2) VRTOL

LM4050A ±2.5 ±15

mVLM4050B ±5.0 ±18

LM4050C ±13 ±25

Minimum Operating Current IRMIN 45 65 µA

Average Reverse Voltage

Temperature Coefcient

(Notes 2, 3)

DVR/DT

IR = 10mA ±20

ppm/°CIR = 1mA ±15 ±50

IR = 100µA ±15

Reverse Breakdown Voltage

Change with Operating

Current Change

IRMIN ≤ IR ≤ 1mA 0.3 1.0

1mA ≤ IR ≤ 15mA 2.5 8.0

Reverse Dynamic

Impedance (Note 3) ZRIR = 1mA, f = 120Hz,

IAC = 0.1IR

LM4050A/B 0.3 0.8 Ω

LM4050C 0.3 0.9

Wideband Noise eNIR = 100µA, 10Hz ≤ f ≤ 10kHz 35 µVRMS

Reverse Breakdown Voltage

Long-Term Stability DVRT = 1000h 120 ppm

LM4050/LM4051 50ppm/°C Precision Micropower Shunt Voltage

References with Multiple Reverse Breakdown Voltages

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Electrical Characteristics—2.500V

(IR = 100µA, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Reverse Breakdown Voltage VRTA = +25°C

LM4050A (0.1%) 2.9970 3.0000 3.0030

VLM4050B (0.2%) 2.9940 3.0000 3.0060

LM4050C (0.5%) 2.9850 3.0000 3.0150

Reverse Breakdown Voltage

Tolerance (Note 2) VRTOL

LM4050A ±3.0 ±18

mVLM4050B ±6.0 ±21

LM4050C ±15 ±30

Minimum Operating Current IRMIN 45 67 µA

Average Reverse Voltage

Temperature Coefcient

(Notes 2, 3)

DVR/DT

IR = 10Ma ±20

ppm/°CIR = 1mA ±15 ±50

IR = 100µA ±15

Reverse Breakdown Voltage

Change with Operating

Current Change

IRMIN ≤ IR ≤ 1mA 0.3 1.0

1mA ≤ IR ≤ 15mA 2.5 8.0

Reverse Dynamic

Impedance (Note 3) ZRIR = 1mA, f = 120Hz,

IAC = 0.1IR

LM4050A/B 0.3 0.8 Ω

LM4050C 0.3 0.9

Wideband Noise eNIR = 100µA, 10Hz ≤ f ≤ 10kHz 45 µVRMS

Reverse Breakdown Voltage

Long-Term Stability DVRT = 1000h 120 ppm

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Reverse Breakdown Voltage VRTA = +25°C

LM4050A (0.1%) 3.2967 3.3000 3.3033

VLM4050B (0.2%) 3.2934 3.3000 3.3066

LM4050C (0.5%) 3.2835 3.3000 3.3165

Reverse Breakdown Voltage

Tolerance (Note 2) VRTOL

LM4050A ±3.0 ±18

mVLM4050B ±6.0 ±21

LM4050C ±15 ±30

Minimum Operating Current IRMIN 45 67 µA

Average Reverse Voltage

Temperature Coefcient

(Notes 2, 3)

DVR/DT

IR = 10mA ±20

ppm/°CIR = 1mA ±15 ±50

IR = 100µA ±15

Reverse Breakdown Voltage

Change with Operating

Current Change

IRMIN ≤ IR ≤ 1mA 0.3 1.0

1mA ≤ IR ≤ 15mA 2.5 8.0

Reverse Dynamic

Impedance (Note 3) ZRIR = 1mA, f = 120Hz,

IAC = 0.1IR

LM4050A/B 0.3 0.8 Ω

LM4050C 0.3 0.9

Wideband Noise eNIR = 100µA, 10Hz ≤ f ≤ 10kHz 50 µVRMS

Reverse Breakdown Voltage

Long-Term Stability DVRT = 1000h 120 ppm

LM4050/LM4051 50ppm/°C Precision Micropower Shunt Voltage

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Electrical Characteristics—3.000V

Electrical Characteristics—3.300V

(IR = 100µA, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Reverse Breakdown Voltage VRTA = +25°C

LM4050A (0.1%) 4.0919 4.0960 4.1001

VLM4050B (0.2%) 4.0878 4.0960 4.1042

LM4050C (0.5%) 4.0755 4.0960 4.1165

Reverse Breakdown Voltage

Tolerance (Note 2) VRTOL

LM4050A ±4.1 ±25

mVLM4050B ±8.2 ±29

LM4050C ±20 ±41

Minimum Operating Current IRMIN 50 73 µA

Average Reverse Voltage

Temperature Coefcient

(Notes 2, 3)

DVR/DT

IR = 10mA ±30

ppm/°CIR = 1mA ±20 ±50

IR = 100µA ±15

Reverse Breakdown Voltage

Change with Operating

Current Change

IRMIN ≤ IR ≤ 1mA 0.5 1.2

1mA ≤ IR ≤ 15mA 3.0 10.0

Reverse Dynamic

Impedance (Note 3) ZRIR = 1mA, f = 120Hz, IAC = 0.1IR0.5 1.0 Ω

Wideband Noise eNIR = 100µA, 10Hz ≤ f ≤ 10kHz 64 µVRMS

Reverse Breakdown Voltage

Long-Term Stability DVRT = 1000h 120 ppm

LM4050/LM4051 50ppm/°C Precision Micropower Shunt Voltage

References with Multiple Reverse Breakdown Voltages

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Electrical Characteristics—4.096V

(IR = 100µA, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)

Note 1: All devices are 100% production tested at +25°C and are guaranteed by design for TA = TMIN to TMAX, as specified.

Note 2: The limit over the full temperature range for the reverse breakdown voltage tolerance is defined as:

[VRTOL] ±[(∆VR / ∆T) X (max∆T) X (VR)]

where ∆VR / ∆T is the VR temperature coefficient, max∆T is the difference from the +25°C reference point to TMIN or TMAX,

and VR is the reverse breakdown voltage.

The total tolerance over the full temperature range for the different grades where max∆T = +100°C is shown below:

• A grade: ±0.6% = ±0.1% ±50ppm/°C x 100°C

• B grade: ±0.7% = ±0.2% ±50ppm/°C x 100°C

• C grade: ±1.0% = ±0.5% ±50ppm/°C x 100°C

Note 3: Guaranteed by design.

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Reverse Breakdown Voltage VRTA = +25°C

LM4050A (0.1%) 4.9950 5.0000 5.0050

VLM4050B (0.2%) 4.9900 5.0000 5.0100

LM4050C (0.5%) 4.9750 5.0000 5.0250

Reverse Breakdown Voltage

Tolerance (Note 2) VRTOL

LM4050A ±5.0 ±30

mVLM4050B ±10 ±35

LM4050C ±25 ±50

Minimum Operating Current IRMIN 54 80 µA

Average Reverse Voltage

Temperature Coefcient

(Notes 2, 3)

DVR/DT

IR = 10mA ±30

ppm/°CIR = 1mA ±20 ±50

IR = 100µA ±15

Reverse Breakdown Voltage

Change with Operating

Current Change

IRMIN ≤ IR ≤ 1mA 0.5 1.4

1mA ≤ IR ≤ 15mA 3.5 12.0

Reverse Dynamic

Impedance (Note 3) ZRIR = 1mA, f = 120Hz, IAC = 0.1IR 0.5 1.1 Ω

Wideband Noise eNIR = 100µA, 10Hz ≤ f ≤ 10kHz 80 µVRMS

Reverse Breakdown Voltage

Long-Term Stability DVRT = 1000h 120 ppm

LM4050/LM4051 50ppm/°C Precision Micropower Shunt Voltage

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Electrical Characteristics—5.000V

(IR = 100µA, SC70-3 package, TA = +25°C, unless otherwise noted.)

OUTPUT VOLTAGE vs. TEMPERATURE

(VOUT = 2.500V)

MAX4050 toc02

TEMPERATURE (°C)

OUTPUT VOLTAGE (V)

11085603510-15

2.492

2.494

2.496

2.498

2.490

-40 135

OUTPUT VOLTAGE vs. TEMPERATURE

(VOUT = 5.000V)

MAX4050 toc03

TEMPERATURE (°C)

OUTPUT VOLTAGE (V)

11085-15 10 35 60

4.989

4.991

4.993

4.995

4.997

4.999

5.001

5.003

4.987

-40 135

LM4050-2.5V

REVERSE VOLTAGE vs. ISHUNT

LM4050 toc04

ISHUNT (mA)

REVERSE VOLTAGE CHANGE (mV)

15105

0 20

TA = +125°C

TA = -40°C

TA = +25°C

TA = +85°C

LM4050-5.0V

REVERSE VOLTAGE vs. ISHUNT

LM4050 toc05

ISHUNT (mA)

REVERSE VOLTAGE CHANGE (mV)

15105

0 20

TA = -40°C

TA = +125°C

TA = +85°C

TA = +25°C

050 100

REVERSE CHARACTERISTICS AND

MINIMUM OPERATING CURRENT

LM4050 toc01

REVERSE CURRENT (µA)

REVERSE VOLTAGE (V)

LM4050_I_3-5.0

LM4050_I_3-4.1

LM4050_I_3-3.0

LM4050_I_3-2.5

LM4050_I_3-2.1

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LM4050/LM4051 50ppm/°C Precision Micropower Shunt Voltage

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Typical Operating Characteristics

(IR = 100µA, SC70-3 package, TA = +25°C, unless otherwise noted.)

Figure 1. Load-Transient Test Circuit

VGEN

VR AC-COUPLED

+25µA

-25µA

2mV/div

LM4050-2.5V

LOAD-TRANSIENT RESPONSE

LM4050 toc06

10µs/div

CH1: VGEN 2V/div

CH2: VR AC-COUPLED 2mV/div

ISHUNT = 100µA 25µA, RL = 100kΩ, SEE FIGURE 1.

VGEN

VR AC-COUPLED

+25µA

-25µA

10mV/div

LM4050-5.0V

LOAD-TRANSIENT RESPONSE

LM4050 toc07

40µs/div

ISHUNT = 100µA ±25µA

RL = 100kΩ, SEE FIGURE 1.

VGEN

VR AC-COUPLED

+250µA

-250µA

10mV/div

LM4050-2.5V

LOAD-TRANSIENT RESPONSE

LM4050 toc08

10µs/div

ISHUNT = 1mA ±250µA

RL = 10kΩ, SEE FIGURE 1.

VGEN

VR AC-COUPLED

+250µA

-250µA

10mV/div

LM4050-5.0V

LOAD-TRANSIENT RESPONSE

LM4050 toc09

10µs/div

ISHUNT = 1mA ±250µA

RL = 10kΩ, SEE FIGURE 1.

VGEN

VR AC-COUPLED

+2.5mA

-2.5mA

20mV/div

LM4050-2.5V

LOAD-TRANSIENT RESPONSE

LM4050 toc10

10µs/div

ISHUNT = 10mA ±2.5µA

RL = 1kΩ, SEE FIGURE 1.

VGEN

VR AC-COUPLED

+2.5mA

-2.5mA

20mV/div

LM4050-5.0V

LOAD-TRANSIENT RESPONSE

LM4050 toc11

10µs/div

ISHUNT = 10mA ±2.5mA

RL = 1kΩ, SEE FIGURE 1.

1kΩ

VB+

ISHUNT

VGEN

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LM4050/LM4051 50ppm/°C Precision Micropower Shunt Voltage

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Typical Operating Characteristics (continued)

(IR = 100µA, SC70-3 package, TA = +25°C, unless otherwise noted.)

Figure 2. Startup Characteristics Test Circuit

VIN

VOUT

LM4050-2.5V

STARTUP CHARACTERISTICS

LM4050 toc12

0 16 208 124 24 28 32 36

RESPONSE TIME (µs)

RS = 30kΩ

SEE FIGURE 2.

VIN

VOUT

LM4050-5.0V

STARTUP CHARACTERISTICS

LM4050 toc13

0 40 5020 3010 60 70 80 90

RESPONSE TIME (µs)

RS = 16kΩ

SEE FIGURE 2.

0.1k 10k1k 100k 1M

LM4050-2.5V

OUTPUT IMPEDANCE vs. FREQUENCY

LM4050 toc14

FREQUENCY (Hz)

IMPEDANCE (Ω)

1000

0.1

100

IR = 150µA

IR = 1mA

C1 = 1µF

C1 = 0

0.1k 10k1k 100k 1M

LM4050-5.0V

OUTPUT IMPEDANCE vs. FREQUENCY

LM4050 toc15

FREQUENCY (Hz)

IMPEDANCE (Ω)

100

0.1

10 IR = 150µA

IR = 1mA

C1 = 0

C1 = 1µF

1 10010 1k 10k

LM4050-2.5V

NOISE vs. FREQUENCY

LM4050 toc16

FREQUENCY (Hz)

10,000

100

1000

NOISE (nV/√Hz)

1 10010 1k 10k

LM4050-5.0V

NOISE vs. FREQUENCY

LM4050 toc17

FREQUENCY (Hz)

10,000

100

1000

NOISE (nV/√Hz)

VIN

1Hz RATE

50%

DUTY CYCLE

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LM4050/LM4051 50ppm/°C Precision Micropower Shunt Voltage

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Typical Operating Characteristics (continued)

Detailed Description

The LM4050/LM4051 shunt references use the bandgap

principle to produce a stable, accurate voltage. The device

behaves similarly to an ideal zener diode; a fixed voltage

is maintained across its output terminals when biased

with 60µA to 15mA of reverse current. The LM4050/

LM4051 clamps to a voltage of one diode drop below

ground when biased with forward currents up 10mA.

Figure 3 shows a typical operating circuit. The LM4050/

LM4051 are ideal for providing stable references from a

high-voltage power supply.

Applications Information

The LM4050/LM4051s’ internal pass transistors are used

to maintain a constant output voltage (VSHUNT) by sink-

ing the necessary amount of current across a source

resistor. The source resistance (RS) is determined from

the load current (ILOAD) range, supply voltage (VS) varia-

tions, VSHUNT, and desired quiescent current.

Choose the value of RS when VS is at a minimum and

ILOAD is at a maximum. Maintain a minimum ISHUNT of

60µA at all times. The RS value should be large enough to

keep ISHUNT less than 15mA for proper regulation when

VS is maximum and ILOAD is at a minimum. To prevent

damage to the device, ISHUNT should never exceed 20mA.

Therefore, the value of RS is bounded by the following

equation:

[VS(MIN) - VR ] / [60µA + ILOAD(MAX)] > RS >

[VS(MAX) - VR ] / [20mA + ILOAD(MIN)]

Choosing a larger resistance minimizes the total power

dissipation in the circuit by reducing the shunt current

(PD(TOTAL) = VS x ISHUNT). Provide a safety margin to

incorporate the worst-case tolerance of the resistor used.

Ensure that the resistor’s power rating is adequate, using

the following general power equation:

PDR = ISHUNT x (VS(MAX) - VSHUNT)

Output Capacitance

The LM4050/LM4051 do not require external capaci-

tors for frequency stability and are stable for any output

capacitance.

Temperature Performance

The LM4050/LM4051 typically exhibit output voltage tem-

perature coefficients within ±15ppm/°C. The polarity of the

temperature coefficients may be different from one device

to another; some may have positive coefficients, and oth-

ers may have negative coefficients.

High Temperature Operation

The maximum junction temperature of the LM4050/

LM4051 is +150°C. The maximum operating temperature

for the LM4050/LM4051_E_ is +125°C. At a maximum

load current of 15mA and a maximum output voltage of

5V, the parts dissipate 75mW of power. The power dis-

sipation limits of the 3-pin SC70 call for a derating value

of 2.17mW/°C above +70°C and thus for 75mW of power

dissipation, the parts self-heat to 35.56°C above ambient

temperature. If the ambient temperature is +125°C, the

parts operate at 159.56°C, thereby exceeding the maxi-

mum junction temperature value of +150°C. For high-

temperature operation, care must be taken to ensure the

combination of ambient temperature, output power dissi-

pation, and package thermal resistance does not conspire

to raise the device temperature beyond that listed in the

Absolute Maximum Ratings. Either reduce the output load

current or the ambient temperature to keep the part within

the limits.

Figure 3. Typical Operating Circuit

PIN NAME FUNCTION

1 + Positive Terminal of the Shunt Reference

2-Negative Terminal of the Shunt Reference

3 N.C. No connection. Leave this pin unconnected or connected to pin 2.

LM4050

ILOAD

ISHUNT

ISHUNT + ILOAD

LM4050/LM4051 50ppm/°C Precision Micropower Shunt Voltage

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Pin Description

PART OUTPUT

VOLTAGE (V)

INITIAL

ACCURACY (%)

TEMPCO

(ppm/_C) TEMP RANGE PIN-PACKAGE TOP

MARK

LM4050AEM3-2.1+T 2.048 0.1 50 -40°C to +125°C 3 SOT23 FZTR

LM4050AEX3-2.1+T 2.048 0.1 50 -40°C to +125°C 3 SC70 ASM

LM4050BEM3-2.1+T 2.048 0.2 50 -40°C to +125°C 3 SOT23 FZTS

LM4050BEX3-2.1+T 2.048 0.2 50 -40°C to +125°C 3 SC70 ASN

LM4050CEM3-2.1+T 2.048 0.5 50 -40°C to +125°C 3 SOT23 FZTT

LM4050CEX3-2.1+T 2.048 0.5 50 -40°C to +125°C 3 SC70 ASO

LM4050AEM3-2.5+T 2.500 0.1 50 -40°C to +125°C 3 SOT23 FZTU

LM4050AEX3-2.5+T 2.500 0.1 50 -40°C to +125°C 3 SC70 ASP

LM4050AEX3-2.5/V+T 2.500 0.1 50 -40°C to +125°C 3 SC70 +AUE

LM4050BEM3-2.5+T 2.500 0.2 50 -40°C to +125°C 3 SOT23 FZTV

LM4050BEX3-2.5+T 2.500 0.2 50 -40°C to +125°C 3 SC70 ASQ

LM4050CEM3-2.5+T 2.500 0.5 50 -40°C to +125°C 3 SOT23 FZTW

LM4050CEX3-2.5+T 2.500 0.5 50 -40°C to +125°C 3 SC70 ASR

LM4050AEM3-3.0+T 3.000 0.1 50 -40°C to +125°C 3 SOT23 FZTX

LM4050AEX3-3.0+T 3.000 0.1 50 -40°C to +125°C 3 SC70 ASS

LM4050BEM3-3.0+T 3.000 0.2 50 -40°C to +125°C 3 SOT23 FZTY

LM4050BEM3-3.0/V+T 3.000 0.2 50 -40°C to +125°C 3 SOT23 +FZVG

LM4050BEX3-3.0+T 3.000 0.2 50 -40°C to +125°C 3 SC70 AST

LM4050CEM3-3.0+T 3.000 0.5 50 -40°C to +125°C 3 SOT23 FZTZ

LM4050CEX3-3.0+T 3.000 0.5 50 -40°C to +125°C 3 SC70 ASU

LM4050AEX3-3.3+T 3.300 0.1 50 -40°C to +125°C 3 SC70 AOJ

LM4050AEX3-3.3/V+T 3.300 0.1 50 -40°C to +125°C 3 SC70 +AUE

LM4050BEX3-3.3+T 3.300 0.2 50 -40°C to +125°C 3 SC70 AOK

LM4050CEX3-3.3+T 3.300 0.5 50 -40°C to +125°C 3 SC70 AOL

LM4050CEX3-3.3/V+T 3.300 0.5 50 -40°C to +125°C 3 SC70 +AUE

LM4050AEM3-4.1+T 4.096 0.1 50 -40°C to +125°C 3 SOT23 FZUA

LM4050AEX3-4.1+T 4.096 0.1 50 -40°C to +125°C 3 SC70 ASV

LM4050BEM3-4.1+T 4.096 0.2 50 -40°C to +125°C 3 SOT23 FZUB

LM4050BEM3-4.1/V+T 4.096 0.2 50 -40°C to +125°C 3 SOT23 +FZVL

LM4050BEX3-4.1+T 4.096 0.2 50 -40°C to +125°C 3 SC70 ASW

LM4050CEM3-4.1+T 4.096 0.5 50 -40°C to +125°C 3 SOT23 FZUC

LM4050CEX3-4.1+T 4.096 0.5 50 -40°C to +125°C 3 SC70 ASX

LM4050/LM4051 50ppm/°C Precision Micropower Shunt Voltage

References with Multiple Reverse Breakdown Voltages

www.maximintegrated.com Maxim Integrated

│

Ordering Information

PART OUTPUT

VOLTAGE (V)

INITIAL

ACCURACY (%)

TEMPCO

(ppm/_C) TEMP RANGE PIN-PACKAGE TOP

MARK

LM4050AEM3-5.0+T 5.000 0.1 50 -40°C to +125°C 3 SOT23 FZUD

LM4050AEM3-5.0/V+T 5.000 0.1 50 -40°C to +125°C 3 SOT23 +FZXL

LM4050AEX3-5.0+T 5.000 0.1 50 -40°C to +125°C 3 SC70 ASY

LM4050BEM3-5.0+T 5.000 0.2 50 -40°C to +125°C 3 SOT23 FZUE

LM4050BEX3-5.0+T 5.000 0.2 50 -40°C to +125°C 3 SC70 ASZ

LM4050CEM3-5.0+T 5.000 0.5 50 -40°C to +125°C 3 SOT23 FZUF

LM4050CEM3-5.0/V+T 5.000 0.5 50 -40°C to +125°C 3 SOT23 +FZVM

LM4050CEX3-5.0+T 5.000 0.5 50 -40°C to +125°C 3 SC70 ATA

LM4051AEM3-1.2+T 1.225 0.1 50 -40°C to +125°C 3 SOT23 FZTO

LM4051AEX3-1.2+T 1.225 0.1 50 -40°C to +125°C 3 SC70 ASJ

LM4051BEM3-1.2+T 1.225 0.2 50 -40°C to +125°C 3 SOT23 FZTP

LM4051BEX3-1.2+T 1.225 0.2 50 -40°C to +125°C 3 SC70 ASK

LM4051CEM3-1.2+T 1.225 0.5 50 -40°C to +125°C 3 SOT23 FZTQ

LM4051CEX3-1.2+T 1.225 0.5 50 -40°C to +125°C 3 SC70 ASL

PACKAGE

TYPE

PACKAGE

CODE

OUTLINE

NO.

LAND

PATTERN NO.

3 SOT23 U3+1 21-0051 90-0179

3 SC70 X3+2 21-0075 90-0208

LM4050/LM4051 50ppm/°C Precision Micropower Shunt Voltage

References with Multiple Reverse Breakdown Voltages

www.maximintegrated.com Maxim Integrated

│

Ordering Information (continued)

Chip Information

PROCESS: BiCMOS

Package Information

For the latest package outline information and land patterns

(footprints), go to www.maximintegrated.com/packages. Note

that a “+”, “#”, or “-” in the package code indicates RoHS status

only. Package drawings may show a different suffix character, but

the drawing pertains to the package regardless of RoHS status.

REVISION

NUMBER

REVISION

DATE DESCRIPTION PAGES

CHANGED

0 7/02 Initial release —

4 5/09 Added lead-free notation and corrected topmarks in the Ordering Information

and Selector Guide sections 1, 12

5 5/11 Added automotive packages and updated the Absolute Maximum Ratings. 1, 2

6 9/11 Added automotive packages to Selector Guide and Ordering Information. 1, 12

7 1/13 Removed Selector Guide and revised Ordering Information. 1, 12

8 11/14 Added LM4050AEM3-5.0/V+T to Ordering Information. 13

Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses

are implied. Maxim Integrated reserves the right to change the circuitry and specications without notice at any time. The parametric values (min and max limits)

shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.

│

LM4050/LM4051 50ppm/°C Precision Micropower Shunt Voltage

References with Multiple Reverse Breakdown Voltages

Revision History

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.

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