VP3682
Description
Features
The VP3682 is a versatile controller designed for use in Boost and SEPIC power regulator and topologies that needs an external low-side NMOSFET acting as primary switch. Besides cycleby-cycle current limiting, current mode control scheme also makes it wide bandwidth and good transient response. The current limit can be programmed simply with an external resistor.
The switching frequency can be set in any value between 100k Hz and 1MHz with a resistor or any external clock source. The VP3682 can be operated at high switching frequency to save the solution board size. It has built-in protection circuits such as thermal shutdown, under-voltage lockout, short circuit protection, and overvoltage protection. Internal soft-start circuitry reduces the inrush current at start-up.
- Wide Input Voltage from 2.97V to 60V
- Internal 1.275V Reference with ±1.5% Accuracy
- Adjustable 100k Hz~1MHz Clock Frequency
- I2C Control Interface
- Build-in 5V/20m A LDO Regulator
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