RT5797A Datasheet | Richtek

Description The RT5797A is a high efficiency synchronous stepdown converter. Its input voltage range is from 2.7V to 6V, and it provides an adjustable regulated output voltage from 0.6V to 3.4V while delivering up to 3A of output current. The device integrates synchronous low on-resistance power switches, which enhance efficiency and eliminate the need for an external Schottky diode. Its Current Mode Constant-On-time (CMCOT) operation with internal pensation allows the transient response to be optimized over a wide range of loads and output capacitors. The RT5797A is available in the WDFN-8L 2x2 and WDFN-8SL 2x2 packages. The remended junction temperature range is - 40C to 125C, while the ambient temperature range is - 40C to 85C. 2 Applications - STB, Cable Modem, x DSL Platforms - LCD TV Power Supply, Metering Platforms - General Purpose Point of Load (POL) 3 Features - Efficiency Up to 95% - RDSON 100m High-Side / 70m Low-Side - VIN Range: 2.7V to 6V - VREF is 0.6V with 1% Accuracy at 25C - CMCOT Control Loop Design for Best Transient Response, Robust Loop Stability with Low-ESR (MLCC) COUT - Soft-Start Time: 1.2ms - Power Saving in Light Load 4 Ordering Information Package Type(1) QW: WDFN-8L 2x2 (W-Type) QWA: WDFN-8SL 2x2 (W-Type) (Exposed Pad-Option 2) Lead Plating System G: Richtek Green Policy pliant (2) UVP Option H: Hiccup L: Latched-Off (For WDFN-8SL 2x2 (W-Type) Only) Note 1. - Marked with (1) indicated: patible with the current requirements of IPC/JEDEC J-STD-020. - Marked with (2) indicated: Richtek products are Richtek Green Policy pliant. 5 Simplified Application Circuit VIN CIN SGND PGND VOUT R1 COUT R2 Copyright © 2024 Richtek Technology Corporation. All rights reserved. DS5797A-13 October 2024 is a registered trademark of Richtek Technology Corporation. .richtek. 1 6 Marking Information RT5797ALGQW 2U: Product...