XC6221C08BNR datasheet, PDF - EEWORLD Datasheet

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XC6221C08BNR: DescriptionLow ESR Caps Compatible High Speed LDO Voltage Regulators with ON/OFF Switch; File Size461KB，23 Pages; Manufacturer

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XC6221C08BNR Overview

Low ESR Caps Compatible High Speed LDO Voltage Regulators with ON/OFF Switch

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ETR0328_009

■GENERAL

DESCRIPTION

The XC6221 series is a high accuracy, low noise, high speed, low dropout CMOS regulator with high ripple rejection. The series

includes a reference voltage source, an error amplifier, a current limiter, and a phase compensation circuit.

The CE function enables the entire circuit to be in stand-by state by inputting low level signal. In this stand-by mode, the

electric charge at the output capacitor (CL) will be discharged by the internal auto-discharge switch, and as a result the VOUT

pin quickly returns to the VSS level. The output stabilization capacitor (CL) is also compatible with low ESR ceramic capacitors.

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

The current limiter's fold-back circuit also operates as a short circuit protection and an output current limiter at the output pin.

The series achieves a fast response with only 25μA of low power consumption. Also the series has low dropout voltage

characteristics, which is 80mV at IOUT=100mA and VOUT=3.0V.

With the use of small USP-4 and ultra small USPN-4 packages, a small footprint circuit can be designed.

■APPLICATIONS

●Cellular

phones

●Cordless

phones

●Wireless

communication equipment

●Portable

games

●Cameras,

VCRs

●Portable

AV equipment

●PDAs

■FEATURES

: 200mA <Up to 250mA (TYP.)>

:80mV@ I

OUT

=100mA,V

OUT

=3.0V

: 1.6V ~ 6.0V

: 0.8V~5.0V (0.05V increments)

: +2% (V

OUT

>1.5V)

(+1% option is available)

+30mV (V

OUT

≦1.45V)

(+20mV option is available)

Low Power Consumption

: 25μA (TYP.)

Stand-by Current

: Less than 0.1μA

High Ripple Rejection

: 70dB @ 1kHz

Operating Temperature

: -40℃~85℃

Low ESR Capacitor

: 1.0μF ceramic capacitor

CL High-Speed Auto-Discharge (XC6221B)

CE Pin internally pulled-down

Low Output Noise

Ultra Small Packages

: USP-4, SOT-25, SSOT-24

USPN-4

Output Current

Dropout Voltage

Operating Voltage Range

Output Voltages

Accuracy

■TYPICAL

APPLICATION CIRCUIT

■

TYPICAL PERFORMANCE

CHARACTERISTICS

●Load

Transient Response

XC6221x182

=CE=2.8V, Tr=Tf=5us

Topr=25

℃

, C

=1uF (ceramic)

Output Voltage

1.8

Output Voltage: V

OUT

(V)

1.7

1.6

Output Current

1.5

1.4

1.3

Time (500us/div)

100

250

200

Output Current:

OUT

(mA)

1.9

300

150

1/23

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