LM4040

PRECISION MICROPOWER SHUNT VOLTAGE REFERENCES

Description

The LM4040 is a family of bandgap circuits designed to achieve

precision micro-power voltage references of 2.5V, 3.0V, 3.3V, 4.096V,

and 5.0V. The devices are available in 0.2% B-grade, 0.5% C-grade,

and 1% D-grade initial tolerances.

They are available in small outline SOT23 surface mount packages,

which are ideal for applications where space is at a premium.

Excellent performance is maintained over the 60µA to 15mA

operating current range with a typical temperature coefficient of only

20ppm/°C. The device is designed to be highly tolerant of capacitive

loads, which maintains excellent stability.

This device offers a pin for pin compatible alternative to the LM4040

voltage reference.

Features

•

Small Package: SOT23



SC70-5 Variants Are End of Life (EOL)

•

No Output Capacitor Required

•

Output Voltage Tolerance



LM4040B: ±0.2% at +25°C



LM4040C : ±0.5% at +25°C



LM4040D: ±1% at +25°C

•

Low Output Noise

•

(10Hz to 10kHz) 45µVRMS

•

Wide Operating Current Range 60µA to 15mA

•

Extended Temperature Range -40°C to +125°C

•

Low Temperature Coefficient 100 ppm/°C (max)

•

Green Molding in Small Package SOT23

•

Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)

•

Halogen and Antimony Free. “Green” Device (Note 3)

•

An Automotive-Compliant Part is Available Under Separate

Datasheet (LM4040Q)

Applications

•

Battery Powered Equipment

•

Precision Power Supplies

•

Portable Instrumentation

•

Portable Communications Devices

•

Notebook and Palmtop Computers

•

Data Acquisition Systems

Pin Assignments

(Top View)

* Pin 3 must be left floating or connected to pin 2

SOT23

* Pin 2 must be left floating or connected to pin 1.

** SC70-5 variants are End of Life (EOL).

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.

2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and

Lead-free.

3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and

<1000ppm antimony compounds.

Anode

*

Cathode

N/C

N/C

1

2

3

4

5

LM4040 H5 (SC70-5)

Top View

* Pin 2 must be left floating or connected to pin 1

(Top View)

SC70-5**

LM4040

Document number: DS33195 Rev. 8 - 2

1 of 16

www.diodes.com

August 2019

© Diodes Incorporated