3A Bus Termination Regulator

The APL5331 linear Regulator is designed to provide a regulated voltage with bi-directional output current for DDR-SDRAM termination voltage. The APL5331 inte- grates two Power Transistors to source or sink current up to 3A. It also incorporates current-limit, thermal shut- down and shutdown control functions into a single chip. The current-limit circuit limits the short-circuit current. The on-chip thermal shutdown provides protection against any combination of overload that would create excessive junction temperature. The output voltage of APL5331 tracks the voltage at VREF pin. A resistor di- vider connected to VIN, GND and VREF pins is used to provide a half voltage of VIN to VREF pin. In addition, an external ceramic capaci tor and an open-drain tran- sistor connected to VREF pin provide soft-start and shut- down control respectively. Pulling and holding the VREF voltage to 0V shuts off the output. The output of the APL5331 will be high impedance in shutdown condition. By Anpec Electronics Corporation
APL5331 's PackagesAPL5331 's pdf datasheet

APL5331 Pinout, Pinouts
APL5331 pinout,Pin out
This is one package pinout of APL5331,If you need more pinouts please download APL5331's pdf datasheet.

APL5331 Application circuits
APL5331 circuits
This is one application circuit of APL5331,If you need more circuits,please download APL5331's pdf datasheet.

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