XC6225 Series

30mA High Speed LDO Regulator

The XC6225 series is a high accuracy, low noise, and low dropout CMOS LDO regulator. The series includes a reference voltage source, an error amplifier, a driver transistor, a current limiter, and a phase compensation circuit. The CE function enables the entire circuit to be turned off by a low level input signal to the CE pin. In this stand-by state, the XC6225B series can discharge the electric charge stored at the output capacitor through 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. The current limit fold-back circuit works as a short circuit protection as well as the output current limiter. The series achieves a fast response with only 25μ A of low power consumption. The current limit is set to 50mA (TYP.) so that the device is optimized to protect the circuit from over-current. It is ideally suited for applications requiring 30 mA or less.

A small USP-4 package makes high density mounting possible.

Typical Application Circuit


Output Current 30mA (50mA limit:TYP)
Dropout Voltage 70mV@IOUT=30mA,VOUT(T)=3.2V
Operating Voltage Range 2.5V~6.0V
Output Voltage Range 0.8V~5.0V(0.05V increments)
High Accuracy ±2%(VOUT(T)≧1.5V),±0.03V(VOUT(T)≦1.45V)
Low Quiescent Current 25μA (TYP.)
Stand-by Current Less than 0.1μA
High Ripple Rejection: 70dB@1kHz
Operating Ambient Temperature -40℃~+85℃
Low ESR Capacitor 1.0μF ceramic capacitor
Functions CL High Speed Auto Discharge(XC6225B)



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.