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RT8249C - Dual-Channel Synchronous DC/DC Step-Down Controller

Download the RT8249C datasheet PDF. This datasheet also covers the RT8249A variant, as both devices belong to the same dual-channel synchronous dc/dc step-down controller family and are provided as variant models within a single manufacturer datasheet.

General Description

The RT8249A/B/C is a dual-channel step-down, controller generating supply voltages for battery-powered systems.

It includes two Pulse-Width Modulation (PWM) controllers adjustable from 2V to 5.5V, and two fixed 5V/3.3V linear regulators.

Key Features

  • include on-board power-up sequencing, a power-good output, internal soft-start, and soft-discharge output that prevents negative voltage during shutdown. A constant current ripple PWM control scheme operates without sense resistors and provides 100ns response to load transient. For maximizing power efficiency, the R.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (RT8249A-Richtek.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number RT8249C
Manufacturer Richtek
File Size 281.71 KB
Description Dual-Channel Synchronous DC/DC Step-Down Controller
Datasheet download datasheet RT8249C Datasheet

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Other Datasheets by Richtek

Part Number Description
RT8249A Dual-Channel Synchronous DC/DC Step-Down Controller
RT8249B Dual-Channel Synchronous DC/DC Step-Down Controller
RT8249D Dual-Channel Synchronous DC/DC Step-Down Controller
RT8240A High Efficiency Single Synchronous Buck PWM Controller
RT8240B 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
® RT8249A/B/C Dual-Channel Synchronous DC/DC Step-Down Controller with 5V/3.3V LDOs General Description The RT8249A/B/C is a dual-channel step-down, controller generating supply voltages for battery-powered systems. It includes two Pulse-Width Modulation (PWM) controllers adjustable from 2V to 5.5V, and two fixed 5V/3.3V linear regulators. Each linear regulator provides up to 100mA output current and 3.3V linear regulator provides 1% accuracy under 35mA. The RT8249A/B has an oscillator output to driver the external charge pump application. The RT8249C provides a mode selection pin, SKIPSEL, to select Diode-Emulation Mode (DEM) or Audio Skipping Mode (ASM).