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RT8237M - High Efficiency Single Synchronous Buck PWM Controller

General Description

The RT8237M 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.

Key Features

  • Wide Input Voltage Range: 4.5V to 26V.
  • Output Voltage Range: 0.7V to 3.3V.
  • Built-In 0.5% 0.7V Reference Voltage.
  • Quick Load-Step Response within 100ns.
  • 4700ppm/C Current Source for Current Limit RDS(ON).
  • Adjustable Current Limit with Low-Side MOSFET.
  • Four Selectable Frequency Settings.
  • Soft-Start Control.
  • Drives Large Synchronous-Rectifier FETs.
  • Integrated Boot Switch.
  • Built-In OVP, OCP, and UVP.
  • Over-Temperature Protection.
  • Powe.

📥 Download Datasheet

Datasheet Details

Part number RT8237M
Manufacturer Richtek
File Size 1.04 MB
Description High Efficiency Single Synchronous Buck PWM Controller
Datasheet download datasheet RT8237M Datasheet

Other Datasheets by Richtek

Part Number Description
RT8237A High Efficiency Single Synchronous Buck PWM Controller
RT8237B High Efficiency Single Synchronous Buck PWM Controller
RT8237C High Efficiency Single Synchronous Buck PWM Controller
RT8237D High Efficiency Single Synchronous Buck PWM Controller
RT8237E High Efficiency Single Synchronous Buck PWM Controller
RT8237J High Efficiency Single Synchronous Buck PWM Controller
RT8237K High Efficiency Single Synchronous Buck PWM Controller
RT8237L High Efficiency Single Synchronous Buck PWM Controller
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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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RT8237M High Efficiency Single Synchronous Buck PWM Controller 1 General Description The RT8237M 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 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 RT8237M achieves high efficiency at a reduced cost by eliminating the current sense resistor found in traditional current mode PWMs.