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RT6541E - High Efficiency Single Synchronous Buck PWM Controller

General Description

The RT6541E 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.

Key Features

  • Built-in 1% Reference Voltage.
  • 1-Bit Programmable Output Voltage with Integrated Transition Support.
  • 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/Undervoltage Protection.
  • Thermal Shutdown.
  • Power Good Indicator.
  • RoHS Compliant and Halogen Free.
  • Tiny 14-Lead WDFN Package Ap.

📥 Download Datasheet

Datasheet Details

Part number RT6541E
Manufacturer Richtek
File Size 759.32 KB
Description High Efficiency Single Synchronous Buck PWM Controller
Datasheet download datasheet RT6541E Datasheet

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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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RT6541E High Efficiency Single Synchronous Buck PWM Controller (Only for FP7) General Description The RT6541E 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. The RT6541E supports on-chip voltage programming function between 0.78V and 0.95V by controlling G0 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. The RT6541E achieves high efficiency at a reduced cost by eliminating the current-sense resistor found in traditional current-mode PWMs.