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RT8125D - High Efficiency Single Synchronous Buck PWM Controller

Download the RT8125D datasheet PDF. This datasheet also covers the RT8125C 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 RT8125C/D PWM controller provides high efficiency, excellent transient response, and high DC output accuracy needed for CPU core, I/O, and chipset RAM supplies in notebook computers.

Key Features

  • Richtek Mach ResponseTM Technology.
  • 1% High Accuracy 0.8V Reference.
  • VCC Input Range : 4.5V to 13.2V.
  • VOUT Operating Range : 0.3V to 3.3V.
  • Power Stage Input Range : 1.5V to 24V.
  • Fixed Operating Frequency : 300kHz.
  • VIN Detection.
  • LG_OCSET for Current Limit.
  • PGOOD Indicator.
  • Embedded Bootstrap Switch.
  • High Side Gate Driver Pull Low Resistor (10kΩ).
  • Current Limit with Low Side Current Sense Scheme.
  • Enable Function with Internal Pull.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (RT8125C-Richtek.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number RT8125D
Manufacturer Richtek
File Size 269.88 KB
Description High Efficiency Single Synchronous Buck PWM Controller
Datasheet download datasheet RT8125D Datasheet

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Other Datasheets by Richtek

Part Number Description
RT8125C High Efficiency Single Synchronous Buck PWM Controller
RT8125E High Efficiency Single Synchronous Buck PWM Controller
RT8125F High Efficiency Single Synchronous Buck PWM Controller
RT8125G High Efficiency Single Synchronous Buck PWM Controller
RT8125H 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
® RT8125C/D High Efficiency Single Synchronous Buck PWM Controller General Description The RT8125C/D PWM controller provides high efficiency, excellent transient response, and high DC output accuracy needed for CPU core, I/O, and chipset RAM supplies in notebook computers. Richtek Mach ResponseTM technology is specifically designed for providing 100ns “instant-on” response to load transients while maintaining a relatively constant switching frequency. The RT8125C/D 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.