HIGH-EFFICIENCY STEP-DOWN DC-DC CONVERTER

The SC1578 is a high performance Step-down DC-DC converter, designed to drive an external P-channel MOSFET to generate programmable output voltages. Two main schemes of pulse-skipping and pulse- frequency modulation are employed to maintain low quiescent current and high conversion efficiency over wide ranges of input voltage and loads. The SC1578 delivers 10mA to 2A of output current with 87%-93% efficiency at VIN=9V, VOUT=5V. A Current Sense Comparator with both inverting and non-inverting inputs uncommitted is included to provide the crucial function of either current limit protection or constant output current control. When the SC1578 is used in a high- side current sensing Step-down constant current source, the efficiency is typically greater than 90%. Duty cycle CAN be adjusted to greater than 90% by connecting a resistor from the DUTY pin to V . By Semtech Corporation
SC1578 's PackagesSC1578 's pdf datasheet
SC1578CS




SC1578 Pinout, Pinouts
SC1578 pinout,Pin out
This is one package pinout of SC1578,If you need more pinouts please download SC1578's pdf datasheet.

SC1578 Application circuits
SC1578 circuits
This is one application circuit of SC1578,If you need more circuits,please download SC1578's pdf datasheet.


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