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1A LDO Voltage Regulator with “GreenOperation”

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GreenOperation-Compatible

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GENERAL DESCRIPTION

The XC6220 series is a highly accurate, low noise, high speed, low dropout, and large current CMOS voltage regulator with

GreenOperation function. The series consists of a voltage reference, an error amplifier, a current limiter, an inrush current

prevention circuit and a phase compensation circuit plus a driver transistor.

With a 0.2Ω on-resistance driver transistor integrated and with output currents up to 1A, the ultra low dropout voltage

performance greatly extends battery life as does the GreenOperation function which can switch between high speed and

Output voltage is selectable in 0.05V increments within the range of 0.8V~5.0V, using laser trimming technologies.

An over current protection circuit and a thermal shutdown circuit are built in. The over current protection circuit will operate

when the output current reaches its limit current. The thermal shutdown circuit will operate when the junction temperature

The CE function enables the output to be turned off and the IC becomes a stand-by mode resulting in greatly reduced power

consumption.

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APPLICATIONS

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CD-ROM, CD-R/RW drives

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DVD drives

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HDD drives

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MIDs, UMPCs

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Digital still cameras, Video cameras

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Portable AV equipment

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TYPICAL APPLICATION CIRCUIT

ETR0341-007

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FEATURES

Maximum Output Current

Dropout Voltage

Operating Voltage Range

Output Voltage Range

Accuracy

Low Power Consumption

Operating Temperature

Thermal Shutdown

Inrush Current Protection

CE Pull-Down Resistor

Output Capacitor

Packages

Environmentally Friendly

: 1000mA (TYP.:1200mA limit)

: 1.6V ~ 6.0V

: 0.8V ~ 5.0V (0.05V increments)

: 8μA (TYP.) in PS mode

: 50μA (TYP.) in HS mode

: - 40℃~ +85℃

: Detect 150℃, Release 135℃(TYP.)

: 700mA (MAX.)

: XC6220B/D Series

: XC6220C/D Series

: Ceramic Capacitor Compatible

: USP-6C, SOT-25, SOT-89-5

: EU RoHS Compliant, Pb Free

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TYPICAL PERFORMANCE

CHARACTERISTICS

XC6220x 181

0

100

200

300

400

500

0

200

400

600

800

1000

Topr=25℃

Topr=-40℃

Topr=85℃

CE=V