USPN4B – XC6224
Description
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
Features
| 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 |
