XC6224 Series

1.2V Low Voltage Operation, 150mA High Speed LDO Voltage Regulator

The XC6224 series is a high speed LDO regulator that features high accurate, low noise, high ripple rejection, low dropout and low power consumption. The series consists of a voltage reference, an error amplifier, a driver transistor, a current limiter, and a phase compensation circuit.

This IC is suitable for a local power supply placed in adjacent to the system logic LSI or others, because of low input voltage operation, using an ultra small package USPN-4B02 (0.75mm x 0.95mm) and stable operation with a small phase compensation capacitor (CL) 0.47μF. Also, this IC has fast transient response and high ripple rejection (70dB @ 1kHz).

The CE function enables the circuit to be in stand-by mode by inputting low level signal. In the stand-by mode, the series enables the electric charge at the output capacitor CL to be discharged via the internal switch, and as a result the VOUT pin quickly returns to the VSS level.

The over current protection circuit is integrated and operates when the output current reaches current limit level.

Typical Application Circuit


High Accuracy ±1.5%(Output Voltage1.25V~3.0V)
±20mV(Output Voltage0.8V~1.20V)
Low Quiescent Current 33μA(TYP.)
Stand-by Current 0.1μA
High Ripple Rejection: 70dB(1kHz)
MaximumOutput Current 150mA
Dropout Voltage 210mV@150mA(VOUT=2.8V)
Operating Voltage Range 1.2V~3.6V
Operating Ambient Temperature -40℃~+85℃
Protection Circuits Current Limit Circuit, Short Circuit Protection
ON/OFF Control Active High, CL Auto Discharge Function
Capacitor Low ESR Capacitor
Environmentally Friendly EU RoHS compliant, Pb free



Technical Document

Quality Reports


QuestionWhat is the standby current?

The current that flows through the IC in the standby mode. The standby mode means the state where the IC has been turned off by the CE function.