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G5601A Datasheet High-speed Step-down Controller

Manufacturer: Global Mixed-mode Technology

Overview: Global Mixed-mode Technology Inc. G5601A High-Speed Step-Down Controller with LDO Con- troller for Notebook.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

G5601A PWM controller uses constant on-time control scheme to handle wide input/output voltage ratios with ease and provides 100ns “instant-on” response to load transients while maintaining a relatively constant switching frequency.

The G5601A achieves high efficiency at a reduced cost by eliminating the current-sense resistor found in traditional current-mode PWMs.

Efficiency is further enhanced by an ability to drive very large synchronous rectifier MOSFETs.

Key Features

  • --PWM Controller.
  • Ultra-High Efficiency.
  • No Current-Sense Resistor (Lossless ILIMIT).
  • Quasi-PWM with 100ns Load-Step Response.
  • 1% VOUT Accuracy Over Line and Load.
  • 0.75V to 3.6V Adjustable Output Range.
  • 4.5V to 24V Battery Input Range.
  • OVP & UVP.
  • 1.7ms Soft-Start.
  • Drives Large Synchronous-Rectifier FETs.
  • Power-Good Indicator --LDO Controller.
  • 1.5% Accuracy Over Line and Load.
  • Adjustable Ou.

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G5601A Distributor