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G5644 Datasheet 2.5a Buck Converter

Manufacturer: Global Mixed-mode Technology

Overview: Global Mixed-mode Technology Inc. 2.5A Buck Converter G5644.

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

General Description

The G5644 is a high efficiency, 2.5A buck converter with a high-side low RDS(ON) switch.

It operates from 4.75V to 20V input voltage range, and provides up to 2.5A continuous output current with the output voltage adjustable down to 0.8V.

Whenever the load is light, the G5644 automatically change the PWM operation mode to PFM operation to minimize the power consumption.

Key Features

  • 4.75V to 20V Supply Voltage Operating Range.
  • Fixed 500kHz Switching Frequency.
  • Current-Mode Buck PWM Converter.
  • Built-in P-Channel Power MOSFET.
  • 2.5A Output Current.
  • 0.8V Internal Reference.
  • Shutdown Control.
  • Thermal-Shutdown and Internal Soft Start.
  • Cycle-by-Cycle Current-Limit.
  • Short Circuit Protection.
  • Under-Voltage Lockout Protection.
  • SOP-8 Package.

More Datasheets from Global Mixed-mode Technology

Part Number Description
G5640 2.5A Buck Converter
G5642 3A Buck Converter
G5601A High-Speed Step-Down Controller
G5602 High-Speed Step-Down Controller
G5603 High-Speed Step-Down Controller
G5616 Complete DDR / DDRII and DDRIII Memory Solution Synchronous Buck PWM Controller
G5616A Complete DDR / DDRII and DDRIII Memory Solution Synchronous Buck PWM Controller
G5617A Programmable Output High-Speed Step-Down Controller
G5617B Programmable Output High-Speed Step-Down Controller
G5632 2A Buck Converter

G5644 Distributor