Intersil – ISL68200/201: Digital Hybrid PWM Controllers with PMBus Simplify Power Supply Design

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The ISL68200 and ISL68201 digital hybrid controllers provide the performance of Intersil’s R4TM control loop with the benefits of a digital PMBus interface. Both controllers are fully configurable with external pin-strap resistors, which provide a familiar engineering design flow and eliminate the need for non-volatile memory. Designers can use the PMBus interface and Intersil’s PowerNavigator GUI software to read back VIN, VOUT, IOUT and temperature telemetry, monitor fault reporting bits, and conduct on the fly changes to the VOUT setpoint. The ISL68200 can drive external MOSFETs directly, while the ISL68201 is paired with Intersil’s DrMOS (integrated driver and MOSFET) power stage to create a complete voltage regulator solution.

FEATURES
• 4.5V to 24V input voltage range
• 0.5V to 5.5V output voltage range
• Integrated LDOs for single input rail solution
• 256 boot-up voltage levels with a configuration pin
• PFM operation option for improved light-load efficiency
• Start-up into precharged load
• ±0.5% DAC accuracy with remote sense
• Support all ceramic solutions
• SMBus/PMBus/I2C compatible, up to 1.25MHz
• Eight switching frequency options from 300kHz to 1.5MHz
• 4 x 4mm QFN-24 package
• 1k MSRP: $1.8 to $1.95 US

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