400ma Smartldotm With Internal Pass Mosfet - Semtech Corporation

Intended for applications such as Power Managed PCI the SC1532 is designed to maintain a glitch-free 3.3V output when at least one of two inputs, 5V (VIN1) and 3.3V (VIN2), is present. The SC1532 combines a 5V to 3.3V linear Regulator with an integral 3.3V bypass Switch along with Logic and detection circuitry to control which supply provides the power for the output. Whenever VIN1 exceeds a predetermined threshold value, the internal 3.3V PMOS linear Regulator is en- abled, and the internal pass NMOS is turned off. When VIN1 falls below a lower threshold value, the NMOS pass device is turned on and the PMOS linear Regulator is turned off. This ensures an uninterrupted 3.3V output even if VIN1 falls out of specification. When both supplies are simultaneously available, the PMOS linear Regulator will be turned on, and the NMOS pass will be turned off, thus preferentially sup- plying the output from the 5V supply. By Semtech Corporation
SC1532 's PackagesSC1532 's pdf datasheet

SC1532 Pinout, Pinouts
SC1532 pinout,Pin out
This is one package pinout of SC1532,If you need more pinouts please download SC1532's pdf datasheet.

SC1532 Application circuits
SC1532 circuits
This is one application circuit of SC1532,If you need more circuits,please download SC1532's pdf datasheet.

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