intersil ISL6431 handbook
Update: 28 September, 2023
The ISL6431 is a high efficiency, fixed frequency, synchronous buck PWM controller. It is designed for use in applications that convert 5V to lower distributed voltages required for set-top box, cable modem, DSL modem and residential home gateway core processor, memory and peripheral power supplies. This device makes simple work out of implementing a complete control and protection scheme for a DC-DC stepdown converter. Designed to drive N-channel MOSFETs in a synchronous buck topology, the ISL6431 integrates the control, output adjustment, monitoring and protection functions into a single 8-pin package. The ISL6431 provides simple, single feedback loop, voltage- mode control with fast transient response. The output voltage can be precisely regulated to as low as 0.8V, with a maximum tolerance of ±1.5% over temperature and line voltage variations. A fixed frequency oscillator reduces design complexity, while balancing typical application cost and efficiency. The error amplifier features a 15MHz gain-bandwidth product and 6V/µs slew rate which enables high converter bandwidth for fast transient performance.
Brand: intersil
File format: PDF
Size: 181 KB
MD5 Checksum: 13CE7F5214252921F5B069D65F4D5F6F
Publication date: 10 May, 2012
Downloads: -
PDF Link: intersil ISL6431 handbook PDF