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RT6543A Datasheet High Efficiency Single Synchronous Buck Pwm Controller

Manufacturer: Richtek

Overview: ® RT6543A/B High Efficiency Single Synchronous Buck PWM Controller for INTEL VCCIN AUX ICL and TGL.

Datasheet Details

Part number RT6543A
Manufacturer Richtek
File Size 333.21 KB
Description High Efficiency Single Synchronous Buck PWM Controller
Datasheet RT6543A-Richtek.pdf

General Description

The RT6543A/B PWM controller provides high efficiency, excellent transient response, and high DC output accuracy for stepping down high voltage batteries to generate low voltage CPU core, I/O, and chipset RAM.

The RT6543A/B supports on chip voltage programming function between 0V and 1.8V by controlling VID1/VID0 inputs.

Compared with conventional current-mode PWMs, the RT6543A/B achieves high efficiency without any current sensing resistors.

Key Features

  • A High Efficiency Step-Down DC-DC Controller.
  • Built-in 1% Reference Voltage.
  • 2-Bit Programmable Output Voltage with Integrated.
  • Adjustable Switching Frequency.
  • Input Voltage Range : 3V to 24V.
  • Internal Soft-Start to Reduce Inrush Current.
  • Capability of Driving Large Synchronous Rectifier MOSFETs.
  • Power Good Indicator.
  • Cycle-by-Cycle Current Limit.
  • Over-/Under-Voltage Protection.
  • Thermal Shutdown.
  • RT6543A : Slew Down Mode as VID Change.

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RT6543A Distributor