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FAN5232 - Adjustable PWM Buck Controller

General Description

The FAN5232 is a high efficiency and high precision DC/DC controller for PCs.

It has a synchronous switcher whose output can be adjusted from 5V up to 80% of Vin.

It also has two linear regulators for standby, 3.3V and 5V.

Key Features

  • Three outputs: Adjustable Buck, 3.3V-Always, 5V-Always.
  • Adjustable synchronous switcher, 5V.
  • 80% Vin.
  • 1% internal reference precision.
  • Current mode with voltage feed-forward.
  • Precision current limit option.
  • Charge pump works at all loads.
  • No shoot-through current.
  • Independent shutdown pins for ACPI.
  • Power Good, input UVLO, output OV.
  • 5.6V to 24V input voltage range.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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www.fairchildsemi.com FAN5232 Adjustable PWM Buck Controller for LCD PCs Features • Three outputs: Adjustable Buck, 3.3V-Always, 5V-Always • Adjustable synchronous switcher, 5V – 80% Vin • 1% internal reference precision • Current mode with voltage feed-forward • Precision current limit option • Charge pump works at all loads • No shoot-through current • Independent shutdown pins for ACPI • Power Good, input UVLO, output OV • 5.6V to 24V input voltage range Description The FAN5232 is a high efficiency and high precision DC/DC controller for PCs. It has a synchronous switcher whose output can be adjusted from 5V up to 80% of Vin. It also has two linear regulators for standby, 3.3V and 5V.