Single Phase DC-DC Converter With Integrated Boost Diode

The SC419 is a synchronous buck power supply controller. It features a bootstrap Switch in a space-saving MLPQ- 3x3mm 20-pin package. The device is highly ei cient and uses minimal PCB area. It uses pseudo-i xed frequency adaptive on-time operation to provide fast transient response. The SC419 supports using standard capacitor types such as electrolytic or special polymer in addition to ceramic, at switching frequencies up to 1MHz. The programmable frequency, synchronous operation, and programmable power-save provide high ei ciency operation over a wide load range. Additional features include cycle-by-cycle current limit, soft-start, under and over-voltage protection, program- mable over-current protection, soft shutdown, selectable power-save modes, and programmable ultra-sonic power- save. The device also provides an enable input and a power good output, especially useful for sequencing mul- tiple devices. The input voltage CAN range from 3V to 28V. The wide input voltage range and programmable frequency make the device extremely l exible and easy to use in a broad range of applications. Support is provided for single cell or multi-cell battery systems in addition to traditional DC power supply applications. By Semtech Corporation
SC419 's PackagesSC419 's pdf datasheet

SC419 Pinout, Pinouts
SC419 pinout,Pin out
This is one package pinout of SC419,If you need more pinouts please download SC419's pdf datasheet.

SC419 Application circuits
SC419 circuits
This is one application circuit of SC419,If you need more circuits,please download SC419's pdf datasheet.

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