General Description

TheAPL5913 is a 3A ultra low dropout linear regulator. This product is specifically designed to provide well supply volatage for front-side-bus termination on motherboards and NB applications. The IC needs two supply voltages, a control voltage for the circuitry and a main supply voltage for power conversion, to reduce power dissipation and provide extremely low dropout. The APL5913 integrates many functions. A Power-On Reset (POR) circuit monitors both supply voltages to prevent wrong operations. A thermal shutdown and current limit functions protect the device against thermal and current over-loads. A POK indicates the output status with time delay which is set internally. It can control other converter for power sequence. The APL5913 can be enabled by other power system. Pulling and holding the EN pin below 0.3V shuts off the output.

Features

· Ultra LowDropout

- 0.25V(typical) at 3A Output Current

· Low ESR Output Capacitor (Multi-layer Chip Capacitors (MLCC)) Applicable

· 0.8V Reference Voltage

· High Output Accuracy

- ±1.5 over Line, Load and Temperature

· Fast Transient Response

· Adjustable Output Voltage by External Resistors

· Power-On-Reset Monitoring on Both VCNTL and VIN Pins

· Internal Soft-Start

· Current-Limit Protection

· Under-VoltageProtection

· Thermal Shutdown with Hysteresis

· Power-OK Output with a Delay Time

· Shutdown for Standby or Suspend Mode

· Simple SOP-8-P Package with Exposed Pad

· Lead FreeAvailable (RoHS Compliant)

Applications

· Front Side Bus VTT (1.2V/3A)

· Note Book PC Applications

· Motherboard Applications