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JWH6344 - High Efficiency Synchronous Step-Down PWM Controller

Datasheet Summary

Description

The JW®H6344 is a synchronous buck regulator controller.

Features

  • 6V to 65V operating input range without external VCC.
  • 0.8V to 55V output voltage range.
  • Built-in ±1% 0.8V reference voltage.
  • Switching frequency from 100kHz to 1MHz -SYNC in and SYNC out capability.
  • 7.5V or 10V gate drivers for standard VTH MOSFETs -25ns dead time -2.3A source and 3.5A sink capability -Low-side soft-start for pre-bias start-up.
  • Programmable current limit by low side RDS(ON) sensing or shunt sensing.
  • Adjustable soft-start or optional voltage tr.

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Datasheet Details

Part number JWH6344
Manufacturer JoulWatt
File Size 1.19 MB
Description High Efficiency Synchronous Step-Down PWM Controller
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Full PDF Text Transcription

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JWH6344 High Efficiency Synchronous Step-Down PWM Controller Preliminary Specifications Subject to Change without Notice DESCRIPTION The JW®H6344 is a synchronous buck regulator controller. Operating with an input range of 6V~65V, the JWH6344 adopts voltage mode control and provides high efficiency, excellent transient response, and high DC output accuracy needed for low output voltage, high current, PC system power rail and similar POL power supply in digital consumer products. The JWH6344 guarantees robustness with thermal protection, short-circuit protection, over current protection and VCC under voltage protection. The JWH6344 is available in QFN3.5X4.5-20 package, which provides a compact solution with minimal external components.
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