Intersil – ISL85412/3: Wide VIN 150mA/300mA Synchronous Buck Regulators

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ISL85412/3: Wide VIN 150mA/300mA Synchronous Buck Regulators

The ISL85412/3 integrate both high side and low side NMOS FETs and feature a PFM mode for improved efficiency at light loads. This feature can be disabled if forced PWM mode is desired. The parts switch at a default frequency of 700kHz. By integrating both NMOS devices and providing internal configuration, minimal external components are required, reducing BOM count and complexity of design.

FEATURES

  • 3.5V to 36V input voltage range
  • No compensation required
  • Selectable PFM or forced PWM mode at light loads
  • Internal soft start
  • Power good and enable functions available
  • Synchronous operation for high efficiency
  • Integrated high side and low side NMOS devices
  • Internal switching frequency 700kHz
  • Minimal external components required

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