SY8630 - 4-20Vin, PMIC


  • Wide input range: 4V to 20V input
  • Adjustable input overvoltage protection
  • Synchronous 1.2MHz switching frequency for all channels
  • Cycle by cycle current limit
  • Channel 1 and Channel 2 buck channel:
  • PFET-NFET synchronous step-down converter
  • Low Rds(on) for internal switches (top/bottom): 300/250 mΩ (Channel1) 700/400 mΩ (Channel2)
  • 100% dropout operation
  • Channel 1 output current: 1A
  • Channel 2 output current: 0.6A
  • Channel 3  boost channel:
  • Minmum on time: 50ns typical
  • Low Rdson: 600 mΩ at 20V rating
  •   1A switch current capability
  • Quiescent Current < 250uA
  • RoHS Compliant and Halogen Free
  • Compact package: DFN3x3-12

Typical Application


The SY8630 is a high efficiency 3-channel PMIC with two synchronous buck converters and one boost converter . SY8630 operates over a wide input voltage range from 4V to 20V. With internal intergrated Power MOSFETs, SY8630 achieves small solution size with minimum external component count, and board space.


  • Security CCD Camera power supply
  • Industrial equipment
  • Media player