Datasheet4U Logo Datasheet4U.com

RT8223B - Main Power Supply Controller

Download the RT8223B datasheet PDF. This datasheet also covers the RT8223A variant, as both devices belong to the same main power supply controller family and are provided as variant models within a single manufacturer datasheet.

General Description

The RT8223A/B dual step-down, switch-mode powersupply controller generates logic-supply voltages in battery-powered systems.

The RT8223A/B includes two pulse-width modulation (PWM) controllers fixed at 5V/ 3.3V or adjustable from 2V to 5.5V.

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 RT8223A/B 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 rel.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (RT8223A_Richtek.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number RT8223B
Manufacturer Richtek
File Size 449.63 KB
Description Main Power Supply Controller
Datasheet download datasheet RT8223B Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
RT82 AUTOMOTIVE BRIDGE RECTIFIERS LRC
RT8004 Synchronous Step-Down Regulator Richtek Technology
RT8015 Synchronous Step-Down Regulator Richtek Technology
RT8015B Synchronous Step-Down Converter Richtek Technology
RT805 AUTOMOTIVE BRIDGE RECTIFIERS LRC

Other Datasheets by Richtek

Part Number Description
RT8223A Main Power Supply Controller
RT8223L Main Power Supply Controller
RT8223M Main Power Supply Controller
RT8223N Main Power Supply Controller
RT8223P Main Power Supply 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
RT8223A/B High Efficiency, Main Power Supply Controller for Notebook Computers General Description The RT8223A/B dual step-down, switch-mode powersupply controller generates logic-supply voltages in battery-powered systems. The RT8223A/B includes two pulse-width modulation (PWM) controllers fixed at 5V/ 3.3V or adjustable from 2V to 5.5V. This device also 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 RT8223A/B includes on-board power-up sequencing, the power good output, internal softstart, and internal soft-discharge output that prevents negative voltages on shutdown.