■ 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. As for the XC6221B/D 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.

■ FEATURES

Maximum Output Current : 200mA

Dropout Voltage : 80mV@ IOUT=100mA,VOUT=3.0V

Operating Voltage Range : 1.6V ~ 6.0V

Output Voltage Range : 0.80V~5.00V (0.05V increments)

Accuracy : +2 (VOUT >1.50V) (Standard)

+30mV (VOUT≦ 1.45V) (Standard)

+1 (VOUT >2.00V) (High Accuracy)

+20mV (VOUT≦ 1.95V) (High Accuracy)

Low Power Consumption : 25μ A (TYP.)

Stand-by Current : Less than 0.1μ A

High Ripple Rejection : 70dB @ 1kHz

CE Function : CE Active High

Standby current below 0.1μ A

CL High-Speed Auto-Discharge

(XC6221B/D)

CE Pin internally pulled-down

(XC6221C/D)

Low ESR Capacitor : 1.0μ F ceramic capacitor

Low Output Noise

Operating Ambient Temperature : -40℃ ~+85℃

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

Environmentally Friendly : EU RoHS Compliant, Pb Free

■ APPLICATIONS

● Cellular phones

● Cordless phones

● Wireless communication equipment

● Portable games

● Cameras, VCRs

● Portable AV equipment

● PDAs