Overview

The ISL8502AEVAL1Z evaluation board is used to evaluate the ISL8502A synchronous buck controller with internal MOSFETs.

The ISL8502A is a synchronous buck controller with internal MOSFETs packaged in a small 4mm x 4mm QFN package. The device can support a continuous load of 2A and has a very wide input voltage range. With the switching MOSFETs integrated into the IC, the complete regulator footprint can be very small and provides a much more efficient solution than a linear regulator. Power-good (PGOOD) delay for the ISL8502A has been decreased to 1ms typical (at 500kHz switching frequency) compared to 250ms (at 500kHz) for the ISL8502.

  • 2A continuous output current
  • Integrated MOSFETs for small regulator footprint
  • Adjustable switching frequency, 500kHz to 1.2MHz
  • Tight output voltage regulation, ±1% over-temperature
  • Wide input voltage range, 5V ±10% or 5.5V to 14V
  • Wide output voltage range, from 0.6V
  • Simple single-loop voltage-mode PWM control design
  • Input voltage feed-forward for constant modulator gain
  • Fast PWM converter transient response
  • Lossless rDS(ON) high-side and low-side overcurrent protection
  • Undervoltage detection
  • Integrated thermal shutdown protection
  • Power-good indication
  • Adjustable soft-start

Applications

  • Point-of-load (POL) applications
  • Graphics cards - GPU and memory supplies
  • ASIC power supplies
  • Embedded processor and I/O supplies
  • DSP supplies

Documentation

= Featured Documentation
Type Title Date
Manual - Development Tools
ISL8502AEVAL1Z User Guide
PDF 998 KB
Datasheet
ISL8502A Datasheet
PDF 1.06 MB
2 items

Design & Development

Software Downloads
Type Title Date
PCB Design Files
ISL8502AEVAL1Z Design Files
ZIP 267 KB
1 item

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