Datasheet4U Logo Datasheet4U.com

RT8237L - High Efficiency Single Synchronous Buck PWM Controller

📥 Download Datasheet

Datasheet Details

Part number RT8237L
Manufacturer Richtek
File Size 804.27 KB
Description High Efficiency Single Synchronous Buck PWM Controller
Datasheet download datasheet RT8237L Datasheet

General Description

The RT8237L 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 RT8237L achieves high efficiency at a reduced cost by eliminating the current sense resistor found in traditional current mode PWMs.

Overview

RT8237L High Efficiency Single Synchronous Buck PWM Controller.

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.
  • 4 Selectable Frequency Settings.
  • Soft-Start Control.
  • Drives Large Synchronous-Rectifier FETs.
  • Integrated Boot Switch.
  • Built-in OCP/UVP.
  • Thermal Shutdown.
  • Power Good Indicator Applica.

More Datasheets from 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
RT8237M High Efficiency Single Synchronous Buck PWM Controller
RT8230A Dual-Channel Synchronous DC/DC Step-Down Controller
RT8230B Dual-Channel Synchronous DC/DC Step-Down Controller