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RT6541D - High Efficiency Single Synchronous Buck PWM Controller

General Description

The RT6541D PWM controller provides high efficiency, excellent transient response, and high DC output accuracy needed for stepping down high voltage batteries to generate low voltage 0.77V.

Key Features

  • Built-in 1% Reference Voltage.
  • 4700ppm/°C Programmable Current Limit by Low- Side RDS(ON) Sensing.
  • 3V to 26V Battery Input Range.
  • Drives Large Synchronous Rectifier FETs.
  • Integrated Boost Switch.
  • Over/Under-Voltage Protection.
  • Thermal Shutdown.
  • Power Good Indicator.
  • RoHS Compliant and Halogen Free.
  • Tiny 14-Lead WDFN Package.

📥 Download Datasheet

Datasheet Details

Part number RT6541D
Manufacturer Richtek
File Size 223.03 KB
Description High Efficiency Single Synchronous Buck PWM Controller
Datasheet download datasheet RT6541D 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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® RT6541D High Efficiency Single Synchronous Buck PWM Controller General Description The RT6541D PWM controller provides high efficiency, excellent transient response, and high DC output accuracy needed for stepping down high voltage batteries to generate low voltage 0.77V. 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 RT6541D achieves high efficiency at a reduced cost by eliminating the current-sense resistor found in traditional current-mode PWMs. Efficiency is further enhanced by its ability to drive very large synchronous rectifier MOSFETs and enter diode emulation mode at light load condition.