Datasheet4U Logo Datasheet4U.com

RT8205B Datasheet Main Power Supply Controllers

Manufacturer: Richtek

Download the RT8205B datasheet PDF. This datasheet also includes the RT8205A variant, as both parts are published together in a single manufacturer document.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (RT8205A_Richtek.pdf) that lists specifications for multiple related part numbers.

General Description

The RT8205A/B/C dual step-down, switch-mode powersupply controller generates logic-supply voltages in battery-powered systems.

The RT8205A/B/C includes two pulse-width modulation (PWM) controllers fixed at 5V/ 3.3V or adjustable from 2V to 5.5V.

An alternative LGATE1 output LG1_CP can be used for external charge pump (RT8205B).

Overview

® RT8205A/B/C High Efficiency, Main Power Supply Controllers for Notebook.

Key Features

  • 2 linear regulators providing fixed 5V and 3.3V outputs. The linear regulator each provides up to 70mA output current with automatic linear-regulator bootstrapping to the PWM outputs. The RT8205A/B/C includes on-board power-up sequencing, the power-good output, internal softstart, and internal soft-discharge output that prevents negative voltages on shutdown. A constant on-time PWM control scheme operates without sense resistor and provides 100ns response to load transients while maintaining a r.

More Datasheets from Richtek

Part Number Description
RT8205A Main Power Supply Controllers
RT8205C Main Power Supply Controllers
RT8205L Main Power Supply Controller
RT8205M Main Power Supply Controller
RT8202 Single Synchronous Buck Controller
RT8202A Single Synchronous Buck Controller
RT8202B Single Synchronous Buck Controller
RT8202L Single Synchronous Buck Controller
RT8202M Single Synchronous Buck Controller
RT8203 Main Power-Supply Controllers