General Description

The MAX6029 micropower, low-dropout bandgap volt-

age reference combines ultra-low supply current and

low drift in a miniature 5-pin SOT23 surface-mount pack-

age that uses 70% less board space than comparable

devices in an SO package. An initial accuracy of 0.15%

and a 30ppm/°C (max) temperature coefficient make the

MAX6029 suitable for precision applications. This

series-mode voltage reference sources up to 4mA and

sinks up to 1mA of load current. A wide 2.5V to 12.6V

supply range, ultra-low 5.25µA (max) supply current,

and a low 200mV dropout voltage make these devices

ideal for battery-operated systems. Additionally, an

internal compensation capacitor eliminates the need for

an external compensation capacitor and ensures stabili-

ty with load capacitances up to 10µF.

The MAX6029 provides six output voltages of 2.048V,

2.5V, 3V, 3.3V, 4.096V, and 5V. The MAX6029 is avail-

able in a 5-pin SOT23 or an 8-pin SO package and is

specified over the extended temperature range (-40°C

to +85°C).

Applications

Battery-Powered Systems

Hand-Held Instruments

Precision Power Supplies

A/D and D/A Converters

Features

♦ Ultra-Low 5.25µA (max) Supply Current

♦ ±0.15% (max) Initial Accuracy

♦ 30ppm/°C (max) Temperature Coefficient

♦ 4mA Output Source Current

♦ 1mA Output Sink Current

♦ 2.5V to 12.6V Supply Range

♦ Low 200mV Dropout

♦ Stable with Capacitive Loads Up to 10µF

♦ No External Capacitors Required

♦ Miniature 5-Pin SOT23 Package, 8-Pin SO Package

Ultra-Low-Power Precision Series

Voltage Reference

________________________________________________________________ Maxim Integrated Products

1

GND

N.C.

N.C.

15

OUT

IN

MAX6029

SOT23

TOP VIEW

2

34

OUT

N.C.

GND

1

2

8

7

N.C.

N.C.

IN

N.C.

N.C.

SO

3

4

6

5

MAX6029

Pin Configurations

Ordering Information

19-2892; Rev 2; 11/06

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

PART

PIN-PACKAGE

TOP

MARK

PKG

CODE

MAX6029EUK21-T

5 SOT23-5

AEHD

U5-1

MAX6029EUK25-T

5 SOT23-5

AEHF

U5-1

MAX6029ESA25

8 SO

—

S8-2

MAX6029EUK30-T

5 SOT23-5

AEHH

U5-1

MAX6029EUK33-T

5 SOT23-5

AEHN

U5-1

MAX6029EUK41-T

5 SOT23-5

AEHJ

U5-1

MAX6029ESA41

8 SO

—

S8-2

MAX6029EUK50-T

5 SOT23-5

AEHL

U5-1

Selector Guide

PART

PIN-PACKAGE

OUTPUT

VOLTAGE (V)

MAX6029EUK21-T

5 SOT23-5

2.048

MAX6029EUK25-T

5 SOT23-5

2.500

MAX6029ESA25

8 SO

2.500

MAX6029EUK30-T

5 SOT23-5

3.000

MAX6029EUK33-T

5 SOT23-5

3.300

MAX6029EUK41-T

5 SOT23-5

4.096

MAX6029ESA41

8 SO

4.096

MAX6029EUK50-T

5 SOT23-5

5.000

Note: All devices are specified over the -40°C to +85°C oper-

ating temperature range.