DATASHEET
ISL68200 FN8705
Rev.3.00
Oct 17, 2017 Single-Phase R4 Digital Hybrid PWM Controller with Integrated Driver,
PMBus/SMBus/I2C, and PFM
The ISL68200 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’s serial bus allows for easy R4 loop
optimization, resulting in fast transient performance over a
wide range of applications, including all ceramic output filters.
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 …