Datasheet

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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

to 12.6V (1.25V and 2.048V options) or (V

OUT

+ 0.2V) to

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

♦ 5-Bump UCSP Package (1.0mm ✕ 1.5mm ✕ 0.3mm)

♦ No Output Capacitor Needed

♦ ±0.2% (max) Initial Accuracy

♦ 30ppm/°C (max) Temperature Coefficient

♦ 35µA (max) Quiescent Supply Current

♦ 0.8µA/V (max) Supply Current Variation with V

♦ 100mV Dropout at 500µA Load Current

♦ Line Regulation: 160µV/V (max)

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

4.096V, 4.5V, 5.0V

MAX6023

Precision, Low-Power, Low-Dropout, UCSP

Voltage Reference

________________________________________________________________ Maxim Integrated Products 1

Ordering Information

MAX6023

*CAPACITOR IS OPTIONAL.

REFERENCE

OUT

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

OUT

(V)

INPUT VOLTAGE (V)

MAX6023EBT12

1.250 2.5V to 12.6

MAX6023EBT21

2.048 2.5V to 12.6

MAX6023EBT25

2.500 (V

OUT

+ 200mV) to 12.6

MAX6023EBT30

3.000 (V

OUT

+ 200mV) to 12.6

MAX6023EBT41

4.096 (V

OUT

+ 200mV) to 12.6

MAX6023EBT45

4.500 (V

OUT

+ 200mV) to 12.6

MAX6023EBT50

5.000 (V

OUT

+ 200mV) to 12.6

Selector Guide

Summary of content (13 pages)

PAGE 1
9-2182; Rev 2; 12/02 Precision, Low-Power, Low-Dropout, UCSP Voltage Reference Features 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 to 12.6V (1.25V and 2.048V options) or (VOUT + 0.2V) to 12.6V (all other voltage options), are available with output voltage options of 1.25V, 2.048V, 2.5V, 3.0V, 4.096V, 4.5V, and 5.0V.
PAGE 2
MAX6023 Precision, Low-Power, Low-Dropout, UCSP Voltage Reference ABSOLUTE MAXIMUM RATINGS (Voltages Referenced to GND) IN .........................................................................-0.3V to +13.5V OUT .............................................................-0.3V to (VIN + 0.3V) Output Short Circuit to GND or IN (VIN < 6V) ............Continuous Output Short Circuit to GND or IN (VIN ≥ 6V) .........................60s Continuous Power Dissipation (TA = +70°C) 5-Bump UCSP (derate 3.
PAGE 3
Precision, Low-Power, Low-Dropout, UCSP Voltage Reference (VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP 2.048 MAX UNITS OUTPUT Output Voltage TA = +25°C 2.044 Initial Voltage Accuracy VOUT TA = +25°C -0.
PAGE 4
MAX6023 Precision, Low-Power, Low-Dropout, UCSP Voltage Reference ELECTRICAL CHARACTERISTICS–MAX6023EBT25 (VOUT = 2.500V) (VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP 2.5 MAX UNITS OUTPUT Output Voltage TA = +25°C 2.495 Initial Voltage Accuracy VOUT TA = +25°C -0.
PAGE 5
Precision, Low-Power, Low-Dropout, UCSP Voltage Reference (VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2) PARAMETER MIN TYP MAX UNITS TA = +25°C 2.994 3.000 3.006 V Initial Voltage Accuracy TA = +25°C -0.20 +0.20 % Output Voltage Temperature Coefficient (Note 3) 10 30 ppm/°C (VOUT + 0.2V) ≤ VIN ≤ 12.6V 40 140 µV/V 0 ≤ IOUT ≤ 500µA 0.7 1.5 -500µA ≤ IOUT ≤ 0 0.4 0.
PAGE 6
MAX6023 Precision, Low-Power, Low-Dropout, UCSP Voltage Reference ELECTRICAL CHARACTERISTICS–MAX6023EBT41 (VOUT = 4.096V) (VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP 4.096 MAX UNITS OUTPUT Output Voltage TA = +25°C 4.088 Initial Voltage Accuracy VOUT TA = +25°C -0.
PAGE 7
Precision, Low-Power, Low-Dropout, UCSP Voltage Reference (VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP 4.500 MAX UNITS OUTPUT Output Voltage TA = +25°C 4.491 Initial Voltage Accuracy VOUT TA = +25°C -0.
PAGE 8
MAX6023 Precision, Low-Power, Low-Dropout, UCSP Voltage Reference ELECTRICAL CHARACTERISTICS–MAX6023EBT50 (VOUT = 5.000V) (VIN = +5.5V, IOUT = 0, TA = TMIN to TMAX , unless otherwise noted. Typical values are at TA = +25°C.) (Note 2) PARAMETER MIN TYP MAX UNITS TA = +25°C 4.990 5.0 5.010 V Initial Voltage Accuracy TA = +25°C -0.20 +0.20 % Output Voltage Temperature Coefficient (Note 3) 10 30 ppm/°C (VOUT + 0.2V) ≤ VIN ≤ 12.6V 50 160 µV/V 0 ≤ IOUT ≤ 500µA 1.2 2.
PAGE 9
Precision, Low-Power, Low-Dropout, UCSP Voltage Reference MAX6023EBT50 OUTPUT VOLTAGE TEMPERATURE DRIFT 5.002 VOUT (V) 1.2490 1.2485 4.994 4.992 1.2480 4.990 THREE TYPICAL PARTS 1.2475 0 20 40 60 80 4.986 -40 100 4.999 4.998 4.997 4.996 4.994 4.993 -20 0 20 40 60 80 0 100 200 300 400 500 600 700 800 900 1000 100 TEMPERATURE DRIFT (°C) TEMPERATURE DRIFT (°C) TIME (hr) MAX6023EBT12 LINE REGULATION MAX6023EBT50 LINE REGULATION MAX6023EBT25/30 DROPOUT VOLTAGE vs.
PAGE 10
Typical Operating Characteristics (continued) (VIN = +5V for MAX6023EBT12/21/25/30/41/45, VIN = +5.5V for MAX6023EBT50; IOUT = 0; TA = +25°C, unless otherwise noted.) (Note 6) MAX6023EBT50 POWER-SUPPLY REJECTION RATIO vs. FREQUENCY PSRR (mV/V) 1 1 0.1 0.1 0.01 0.01 40 VALID OVER SPECIFIED VIN (MIN) TO VIN (MAX) FOR EACH PART 38 36 SUPPLY CURRENT (µA) 10 10 PSRR (mV/V) VIN = +5.5V ±0.25V MAX6023 toc12 100 MAX6023 toc10 100 SUPPLY CURRENT vs.
PAGE 11
Precision, Low-Power, Low-Dropout, UCSP Voltage Reference MAX6023EBT12 LOAD-TRANSIENT RESPONSE VOUT 50mV/div VOUT 20mV/div VIN 2V/div VOUT 2V/div 10µs/div 10µs/div 20µs/div MAX6023EBT50 LOAD-TRANSIENT RESPONSE IOUT = ±500µA MAX6023 toc22 MAX6023EBT12 LOAD-TRANSIENT RESPONSE IOUT 1mA/div MAX6023 toc21 IOUT = ±25µA IOUT 50µA/div IOUT 500µA/div IOUT = ±500µA MAX6023 toc23 IOUT 40µA/div MAX6023 toc20 MAX6023 toc19 IOUT = ±25µA MAX6023EBT50 TURN-ON TRANSIENT MAX6023EBT50 LOAD-TRANSIENT RE
PAGE 12
Precision, Low-Power, Low-Dropout, UCSP Voltage Reference MAX6023 Pin Description BUMP NAME A1, A3 I.C. A2 GND B1 OUT B3 IN FUNCTION Internally connected. Do not connect to this pin. Ground Output Voltage Hysteresis Output voltage hysteresis is the change in the output voltage at TA = +25°C before and after the device is cycled over its entire operating temperature range. Hysteresis is caused by differential package stress appearing across the bandgap core transistors.
PAGE 13
Precision, Low-Power, Low-Dropout, UCSP Voltage Reference TRANSISTOR COUNT: 70 TOP VIEW (BUMPS ON BOTTOM) OUT B1 A1 I.C. A2 GND A3 I.C. MAX6023 IN B3 UCSP Package Information 6L, UCSP.EPS (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages. Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product.