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RT6543B 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.

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

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.

More Datasheets from Richtek

Part Number Description
RT6543A High Efficiency Single Synchronous Buck PWM Controller
RT6541A High Efficiency Single Synchronous Buck PWM Controller
RT6541D High Efficiency Single Synchronous Buck PWM Controller
RT6541E High Efficiency Single Synchronous Buck PWM Controller
RT6542A High Efficiency Single Synchronous Buck PWM Controller
RT6545A Dual-Channel Synchronous DC/DC Step-Down Controller
RT6545B Dual-Channel Synchronous DC/DC Step-Down Controller
RT6515 10-Bit Programmable Gamma Reference
RT6551A Complete DDR Memory Power Supply Controller
RT6551B Complete DDR Memory Power Supply Controller

RT6543B Distributor