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Intersil ISL6820x

Intersil ISL68200/01 Digital Hybrid PWM Controllers with PM Bus Interface

The ISL68200/01 is a single-phase synchronous-buck PWM controller featuring Intersil’s proprietary R4™ Technology. It supports a wide 4.5V to 24V input voltage range and a wide 0.5V to 5.5V output range. Integrated LDOs provide controller bias voltage, allowing for single supply operation. The ISL68200 includes a PMBus/SMBus/I2C interface for device configuration and telemetry (VIN, VOUT, IOUT and temperature) and fault reporting.

Intersil’s proprietary R4™ control scheme has extremely fast transient performance, accurately regulated frequency control and all internal compensation. An efficiency enhancing PFM mode can be enabled to greatly improve light-load efficiency.

The ISL68200 device offers integrated power MOSFETs 4A drivers with adaptive shoot-through protection and bootstrap function.  Built-in MOSFET drivers minimize external components, significantly reducing design complexity and board space, while also lowering BOM cost. The 4A drive strength allows for faster switching time, improving regulator efficiency.

Features and Benefits

  • Input voltage range: 4.5V to 24V
  • Output voltage range: 0.5V to 5.5V
  • ±0.5% DAC accuracy with remote sense
  • Support all ceramic solutions
  • Integrated LDOs for single input rail solution
  • SMBus/PMBus/I2C compatible, up to 1.25MHz
  • 256 boot-up voltage levels with a configuration pin
  • Eight switching frequency options from 300kHz to 1.5MHz
  • PFM operation option for improved light-load efficiency
  • ISL6200 has Integrated power MOSFETs 4A drivers with adaptive shoot-through protection and bootstrap function

Applications

  • FPGA, ASIC and memory supplies
  • High efficiency and high density POL digital power
  • Data center: servers, storage systems
  • Wired infrastructure: routers/switches/optical networking
  • Wireless infrastructure: base station

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