300mA High Speed LDO Regulator with ON/OFF Switch

The XC6238 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, a phase compensation circuit.
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 output stabilization capacitor CL is also compatible with low ESR ceramic capacitors.

The output voltage is selectable in 0.05V increments within the range of 1.2V to 4.0V which fixed by laser trimming technologies. The over current protection circuit is built-in. This protection circuit will operate when the output current reaches current limit level.


Maximum Output Current 300mA
Output Voltages 1.6~5.5V
Output Voltages 2.0~4.0V(Accuracy ±1%)
1.2~1.95V(Accuracy ±20mV)
Dropout Voltage 200mV@IOUT=300mA (VOUT=3.0V)
Low Power Consumption 100μA
Protection Circuits Current Limit (400mA)
Short Circuit Protection
Inrush Current Protection (Type H)
Low ESR Capacitors CIN=1μF, CL=1μF
Package UFN-4A01


Package UFN-4A01 Number of Pins 4
Pcs/Reel 3,000 Package Size(mm) 1.0 x 1.0 x 0.6