ISL672X Family

Flexible Single-Ended Current Mode PWM Controllers
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Use the following table to identify which Intersil PWM controller will best meet the needs of your next project:

Device Characteristic ISL6721 ISL6721A ISL6722A ISL6723A
UVLO 8.25V 6.8V 8.25V 13V
Frequency Sync Yes Yes No Yes
Sleep Mode No No Yes No
OTP Yes Yes No No
Package SOIC16 or TSSOP16 QFN16 or TSSOP16 QFN16 or SOIC16 or TSSOP16 SOIC16
Soft Start Programmable
Slope Compensation Programmable
UVP Set point programmable with built in hysteresis
OVP Set point programmable and hiccup mode with 200uA Icc and 295ms off time
OCP Set point programmable pulse by pulse current limit with optional hiccup mode
Leading Edge Blanking 60ns
VREF Accuracy +1%-2%
Gate Drive Voltage/Current Vcc/1A
About Intersil Single-Ended PWM Controllers

Intersil's family of flexible single-ended current mode pulse width modulating (PWM) controllers is designed for a wide range of DC/DC conversion applications including boost, flyback, and isolated output configurations.

Highlights of these advanced BiCMOS designs include: low operating current, adjustable operating frequency up to 1MHz, adjustable soft-start, and a bidirectional SYNC signal that allows the oscillator to be locked to an external clock for noise sensitive applications.

Family Values

  • Highly Integrated Full Feature Single-ended Peak Current Mode Controllers
  • 3mm x 3mm QFN Package Available
  • Easy to Achieve High Density
  • Save External Circuitries and PCB Area to Achieve Low Cost


  • Telecom and Datacom Power
  • Wireless Base Station Power
  • File Server Power
  • Industrial Power Systems
  • Isolated Buck and Flyback Regulators
  • Boost Regulators