DESCRIPTION
The APE8953 is a 3A ultra low dropout linear regulator.
The product is specifically designed to provide well supply voltage for front side bus termination on motherboard and NB applications. The IC needs two supply voltages, a voltage for the circuitry and a main supply voltage for power conversion to reduce power dissipation and provide extremely low dropout. The APE8953 integrates many functions. A Power-on-Reset(POR) circuit monitors both supply voltage to prevent wrong operations. A thermal shutdown and current limit functions protect the device against thermal and current over-load. A POK indicates the output status with time delay which is set internally. It can control other converter for power sequence. The APE8953 can be enabled by other power system. Pulling and holding
the EN pin below 0.4V shuts off the output.
The APE8953 is available in ESOP-8 package which features small size as SO-8 and exposed pad to reduce the junction-to-case resistance, being applicable in 2~3W applications.

FEATURES
*Ultra Low Dropout Voltage 250mV at 3A Output Current
*Low ESR Output Capacitor (MLCC) Applicable
*0.8V Reference Voltage
*Fast Transient Response
*Current Limit and Thermal Shutdown Protection
*Adjustable Output Voltage by External Resistors
*Power-on-Reset Monitoring on Both VCNTL and VIN Pins
*Under Voltage Protection
*Power OK Output with a Delay Time
*Internal Soft-Start
*SOP-8 with Exposed Pad Package
*RoHS Compliant & Halogen Free

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