LM4041

PRECISION MICROPOWER SHUNT VOLTAGE REFERENCES

LM4041

1 of 7

www.diodes.com

December 2010

© Diodes Incorporated

Description

The LM4041 is a bandgap circuit designed to achieve a

precision micro-power voltage reference of 1.225 V. The

surface mount packages which are ideal for applications

where space saving is important.

Both packages are available to 0.5% C grade and 1%

maintained over the 60µA to 12mA operating current range

with a typical temperature coefficient of only 20ppm/°C. The

device has been designed to be highly tolerant of capacitive

loads so maintaining excellent stability.

This device offers a pin for pin compatible alternative to the

LM4041 voltage reference in both adjustable and 1.225V

output variants.

Features

•

Small packages:

SOT23, SC70-5

•

No output capacitor required

•

Output voltage tolerance

•

LM4041C

±0.5% at 25°C

•

LM4041D

±1% at 25°C

•

Low output noise

20µVrms

(10Hz to 10kHz)

•

Wide operating current range

60µA to 12mA

•

Extended temperature range

-40°C to +125°C

•

Low temperature coefficient

100ppm/°C (max)

Applications

•

Battery powered equipment

•

Precision power supplies

•

Portable instrumentation

•

Portable communications devices

•

Notebook and palmtop computers

•

Data acquisition systems

Pin Assignments

LM4041_F (SOT23)

Pin 3 must left floating or connected to pin 2.

LM4041_ADJF….(SOT23)

LM4041_H5

(SC70-5)

Pin 2 must be left floating or connected to pin 1

LM4041_ADJH5

(SC70-5)

3

N/C

CATHODE

1

ANODE

2

3 ANODE

REF

1

CATHODE

2

5

N/C

ANODE

1

CATHODE

3

N/C

2

4

N/C

5

REF

4

N/C

N/C

1

ANODE

2

CATHODE

3