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RT6541A Datasheet High Efficiency Single Synchronous Buck PWM Controller

Manufacturer: Richtek

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Datasheet Details

Part number RT6541A
Manufacturer Richtek
File Size 221.20 KB
Description High Efficiency Single Synchronous Buck PWM Controller
Download RT6541A Download (PDF)

General Description

The RT6541A PWM controller provides high efficiency, excellent transient response, and high DC output accuracy needed for stepping down high voltage batteries to generate low voltage CPU core, I/O, and chipset RAM supplies in notebook computers.

The RT6541A supports on chip voltage programming function between 0.8V and 1.05V by controlling GX digital inputs.

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

Overview

® RT6541A High Efficiency Single Synchronous Buck PWM Controller.

Key Features

  • Intel SKL VR support.
  • Built-in 1% Reference Voltage.
  • 2-Bit Programmable Output Voltage with Integrated Transition Support.
  • Support Intel LPM (Low-Power Mode) Feature.
  • 4700ppm/°C Programmable Current Limit by Low- Side RDS(ON) Sensing.
  • 3V to 26V Battery Input Range.
  • Internal Voltage Ramp Soft-Start Control.
  • Drives Large Synchronous Rectifier FETs.
  • Integrated Boost Switch.
  • Over/Under-Voltage Protection.
  • Thermal Shutdown.
  • Power Good Indic.

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