General Description

The MAX6023 is a family of low-dropout, micropower

voltage references in a 5-bump, chip-scale package

(UCSP™). The MAX6023 series-mode (three-terminal)

references, which operate with input voltages from 2.5V

12.6V (all other voltage options), are available with out-

put voltage options of 1.25V, 2.048V, 2.5V, 3.0V,

4.096V, 4.5V, and 5.0V. These devices are guaranteed

an initial accuracy of ±0.2% and 30ppm/°C tempera-

ture drift over the -40°C to +85°C extended temperature

range.

UCSPs offer the benefit of moving to smaller footprint

and lower profile devices, significantly smaller than even

SC70 or SOT23 plastic surface-mount packages. The

significantly lower profile (compared to plastic SMD

packages) of the UCSP makes the device ideal for

height-critical applications. Miniature UCSP packages

also enable device placement close to sources and

allow more flexibility in a complex or large design layout.

The MAX6023 voltage references use only 27µA of sup-

ply current. And unlike shunt-mode (two-terminal) refer-

ences, the supply current of the MAX6023 family varies

only 0.8µA/V with supply-voltage changes, translating to

longer battery life. Additionally, these internally compen-

sated devices do not require an external compensation

capacitor and are stable up to 2.2nF of load capaci-

tance. The low-dropout voltage and the low supply cur-

rent make these devices ideal for battery-operated

systems.

Applications

Hand-Held Equipment

Data Acquisition Systems

Industrial and Process Control Systems

Battery-Operated Equipment

Hard-Disk Drives

Features

o No Output Capacitor Needed

o ±0.2% (max) Initial Accuracy

o 30ppm/°C (max) Temperature Coefficient

o 35µA (max) Quiescent Supply Current

o 100mV Dropout at 500µA Load Current

o Line Regulation: 160µV/V (max)

o Output Voltage Options: 1.25V, 2.048V, 2.5V, 3.0V,

4.096V, 4.5V, 5.0V

Precision, Low-Power, Low-Dropout, UCSP

Voltage Reference

________________________________________________________________ Maxim Integrated Products

1

Ordering Information

MAX6023

*

*CAPACITOR IS OPTIONAL.

REFERENCE

OUT

OUT

IN

GND

+SUPPLY INPUT (SEE SELECTOR GUIDE)

Typical Operating Circuit

19-2182; Rev 2; 12/02

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.

UCSP is a trademark of Maxim Integrated Products, Inc.

PART

TEMP RANGE

BUMP-

PACKAGE

TOP

MARK

MAX6023EBT12-T

-40°C to +85°C

5 UCSP*-5

AAO

MAX6023EBT21-T

-40°C to +85°C

5 UCSP-5

AAT

MAX6023EBT25-T

-40°C to +85°C

5 UCSP-5

AAP

MAX6023EBT30-T

-40°C to +85°C

5 UCSP-5

AAS

MAX6023EBT41-T

-40°C to +85°C

5 UCSP-5

AAQ

MAX6023EBT45-T

-40°C to +85°C

5 UCSP-5

AAR

MAX6023EBT50-T

-40°C to +85°C

5 UCSP-5

AAU

Pin Configuration appears at end of data sheet.

*UCSP reliability is integrally linked to the user’s assembly meth-

ods, circuit board material, and environment. See the UCSP

Reliability Notice in the UCSP Reliability section of this data sheet

for more information.

PART

INPUT VOLTAGE (V)

MAX6023EBT12

1.250

2.5V to 12.6

MAX6023EBT21

2.048

2.5V to 12.6

MAX6023EBT25

2.500

MAX6023EBT30

3.000

MAX6023EBT41

4.096

MAX6023EBT45

4.500

MAX6023EBT50

5.000

Selector Guide