For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

General Description

The LM4041 is a precision two-terminal shunt mode,

bandgap voltage reference with a fixed reverse break-

down voltage of 1.225V. Ideal for space-critical appli-

cations, the LM4041 is offered in the subminiature 3-pin

smaller than comparable devices in SOT23 surface-

mount packages (SOT23 versions are also available).

Laser-trimmed resistors ensure precise initial accuracy.

With a 100ppm/°C temperature coefficient, the device

is offered in four grades of initial accuracy ranging from

0.1% to 1%. The LM4041 has a 60µA to 12mA shunt

current capability with low dynamic impedance, ensur-

ing stable reverse-breakdown voltage accuracy over a

wide range of operating temperatures and currents.

The LM4041 does not require an external stabilizing

capacitor while ensuring stability with any capacitive

load.

The LM4041 is guaranteed over the temperature range

-40°C to +125°C.

________________________Applications

Portable, Battery-Powered Equipment

Notebook Computers

Cell Phones

Industrial Process Controls

Features

♦ Ultra-Small 3-Pin SC70 Package

♦ 0.1% (max) Initial Accuracy

♦ 100ppm/°C (max) Temperature Coefficient

Guaranteed over -40°C to +125°C Temperature

Range

♦ Wide Operating Current Range: 60µA to 12mA

♦ 1.225V Fixed Reverse Breakdown Voltage

♦ No Output Capacitors Required

♦ Tolerates Capacitive Loads

Improved Precision Micropower

Shunt Voltage Reference

________________________________________________________________ Maxim Integrated Products

1

-

1

3

N.C.*

+

LM4041

SC70-3/SOT23-3

TOP VIEW

2

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

PART

INITIAL

ACCURACY

(%)

OUTPUT

VOLTAGE

(V)

TEMPCO

(ppm/°C)

LM4041A___-1.2-T

0.1

1.225

100

LM4041B___-1.2-T

0.2

1.225

100

LM4041C___-1.2-T

0.5

1.225

100

LM4041D___-1.2-T

1.0

1.225

150

Pin Configuration

Selector Guide

19-1704; Rev 5; 1/09

Ordering Information

PART

TEMP RANGE

PIN-

PACKAGE

TOP

MARK

LM4041AIX3-1.2+T

-40°C to +85°C

3 SC70-3

ABF

LM4041AIM3-1.2+T

-40°C to +85°C

3 SOT23-3

FZEB

LM4041AEX3-1.2+T

-40°C to +125°C

3 SC70-3

ALB

LM4041AEM3-1.2+T

-40°C to +125°C

3 SOT23-3

FZNC

LM4041BIX3-1.2+T

-40°C to +85°C

3 SC70-3

ABG

LM4041BIM3-1.2+T

-40°C to +85°C

3 SOT23-3

FZEC

LM4041BEX3-1.2+T

-40°C to +125°C

3 SC70-3

ALC

LM4041BEM3-1.2+T

-40°C to +125°C

3 SOT23-3

FZND

LM4041CIX3-1.2+T

-40°C to +85°C

3 SC70-3

ABH

LM4041CIM3-1.2+T

-40°C to +85°C

3 SOT23-3

FZED

LM4041CEX3-1.2+T

-40°C to +125°C

3 SC70-3

ALD

LM4041CEM3-1.2+T

-40°C to +125°C

3 SOT23-3

FZNE

LM4041DIX3-1.2+T

-40°C to +85°C

3 SC70-3

ABI

LM4041DIM3-1.2+T

-40°C to +85°C

3 SOT23-3

FZEE

LM4041DEX3-1.2+T

-40°C to +125°C

3 SC70-3

ALE

LM4041DEM3-1.2+T

-40°C to +125°C

3 SOT23-3

FZNF

Note: For leaded version, contact factory.

*See Selector Guide for a listing of LM4041 Output Voltage,

Initial Accuracy, and Temperature Coefficient specifications.

+Denotes a lead(Pb)-free/RoHS-compliant package.