VR x 4,VD x 2 Multi Power Supply

Series

649

10

The XC641A series are highly precise, low power consumption, multi

power supply IC s, manufactured using CMOS and laser trimming

technologies. The IC consists of a highly precise reference, 4 voltage

regulators, 2 voltage detectors, and an output control circuit.

Because the regulators can be disabled through the EN pins, in stand-

by, current consumption can be greatly reduced. The minimal input /

output differential supports efficient voltage circuit design. The XC641A

is particularly suitable for use with battery powered equipment where

power supply control is all important.

The series comes in a small TSSOP-16 package.

■General Description

Output Voltage / Detect Voltage Range

: 2V ~ 5V : Selectable in 0.1V

increments ( Semi-Custom )

Highly Accurate

: Setup voltage ±2%

Low power consumption : TYP 25

µA

TYP 6

µA [ When the EN input is

OFF (standard products) ]

Output voltage temperature characteristics

: TYP±100ppm/°C

Small Package

: TSSOP-16

GBattery Operated Power Supply Systems

GMobile Phones, Cordless Phones, and other

Portable Communication Systems.

■Features

■Applications

NCMOS Low Power Consumption

N4 Voltage Regulators and 2 Voltage

Detectors Built-In.

NOutput Control Circuit

NOutput Voltage and Detect Voltage Range

: 2V ~ 5V

NOutput Voltage Accuracy and Detect

Voltage Range: ±2%

N16 Pin TSSOP Package

OUT4

DIN2

CD1

Dout2

Dout1

OUT1

EXT1

VSS

VDD

OUT3

DIN1

EN3

EN2

EN1

OUT2

EXT2

XC641A Series

VCC

I/O

I/O

I/O

/RESET

INT

μP

TRANSMITTER

AUDIO

PERIPHERAL

■Typical Application Circuit

10S_01XC641A 02.09.12 15:36 ページ 649