LM4132

Input

5V

Output

2.5V

EN

GND

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LM4132, LM4132-Q1

SNVS372D – AUGUST 2005 – REVISED APRIL 2015

LM4132/LM4132-Q1 SOT-23 Precision Low Dropout Voltage Reference

1 Features

3 Description

The LM4132 family of precision voltage references

1

•

Output Initial Voltage Accuracy 0.05%

performs comparable to the best laser-trimmed

•

Low Temperature Coefficient 10 ppm/°C

bipolar references, but in cost effective CMOS

•

Low Supply Current, 60 µA

technology. The key to this break through is the use

of EEPROM registers for correction of curvature,

•

Enable Pin Allowing a 3 µA Shutdown Mode

tempco,

and

accuracy

on

a

CMOS

bandgap

•

20 mA Output Current

architecture that allows package level programming

•

Voltage Options 1.8V, 2.048 V, 2.5 V, 3.0 V, 3.3

to overcome assembly shift. The shifts in voltage

V, 4.096 V

accuracy and tempco during assembly of die into

plastic packages limit the accuracy of references

•

Custom Voltage Options Available (1.8V to

trimmed with laser techniques.

4.096V)

•

Unlike other LDO references, the LM4132 is capable

of delivering up to 20mA and does not require an

•

Stable with Low ESR Ceramic Capacitors

output

capacitor

or

buffer

amplifier.

These

•

SOT23-5 Package

advantages and the SOT23 packaging are important

•

LM4132AQ1/BQ1/CQ1/DQ1/EQ1 are AEC Q-100

for space-critical applications.

grade 1 qualified and are manufactured on an

Series references provide lower power consumption

Automotive Grade flow

than shunt references, since they do not have to idle

the maximum possible load current under no load

2 Applications

conditions. This advantage, the low quiescent current

(60µA), and the low dropout voltage (400mV) make

•

Instrumentation & Process Control

the LM4132 ideal for battery-powered solutions.

•

Test Equipment

The LM4132 is available in five grades (A, B, C, D

•

Data Acquisition Systems

and E) for greater flexibility. The best grade devices

•

Base Stations

(A) have an initial accuracy of 0.05% with a specified

•

Servo Systems

temperature coefficient of 10ppm/°C or less, while the

lowest grade parts (E) have an initial accuracy of

•

Portable, Battery Powered Equipment

0.5% and a tempco of 30ppm/°C.

•

Automotive & Industrial

•

Precision Regulators

•

Battery Chargers

•

Communications

•

Medical Equipment

1

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.