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RT8237D - High Efficiency Single Synchronous Buck PWM Controller

Download the RT8237D datasheet PDF. This datasheet also covers the RT8237C variant, as both devices belong to the same high efficiency single synchronous buck pwm controller family and are provided as variant models within a single manufacturer datasheet.

General Description

The RT8237C/D 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 Programmable Current Limit by Low Side RDS(ON) Sensing.
  • 4 Selectable Frequency Setting.
  • Soft-Start Control.
  • Drives Large Synchronous-Rectifier FETs.
  • Integrated Boot Switch.
  • Built-In OVP/OCP/UVP.
  • Thermal Shutdown.
  • Power Good Indicator.
  • RoHS Compliant and Halogen Free Ap.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (RT8237C_RICHTEK.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number RT8237D
Manufacturer Richtek
File Size 242.66 KB
Description High Efficiency Single Synchronous Buck PWM Controller
Datasheet download datasheet RT8237D Datasheet

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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
RT8237E High Efficiency Single Synchronous Buck PWM Controller
RT8237J High Efficiency Single Synchronous Buck PWM Controller

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.

View original datasheet text
® RT8237C/D High Efficiency Single Synchronous Buck PWM Controller General Description The RT8237C/D 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 RT8237C/D achieves high efficiency at a reduced cost by eliminating the current sense resistor found in traditional current mode PWMs.