RT9758D Datasheet | Richtek

Description The RT9758D is a high efficiency switching capacitor converter for input >7.4V application. The efficiency is up to 98.1% when VOUT = 10V, IOUT = 2A, switching frequency = 500k Hz, dual phase with VBUS input in cap divider mode. The device integrates two phase switching capacitor topology (DIV2 mode), bypass mode, an input reverse blocking MOS and 9-way protections. The default operation mode of the device is DIV2 mode. User can use I2C to select the device operating in bypass mode or reverse DIV2 mode or reverse bypass mode. The maximum output current is 6A with DIV2 mode or 5A with bypass mode. In present mode (̅E̅̅N̅ = H), the host can still issue mands by the I2C serial interface. The remended junction temperature range is - 40C to 125C, and the ambient temperature range is - 40C to 85C. 2 Applications - Smart Phones - Tablet - PC 3 Ordering Information Package Type(1) WSC: WL-CSP-36B 2.74x2.84 (BSC) Note 1. Marked with (1) indicated: Richtek products are Richtek Green Policy pliant and patible with the current requirements of IPC/JEDEC J-STD-020. 4 Marking Information 3M YM DAN 3M: Product Code YMDAN: Date Code Copyright © 2024 Richtek Technology Corporation. All rights reserved. DS9758D-00 May 2024 5 Features - Integrated Bidirectional Bypass Mode and Cap Divider Mode (DIV2 Mode) - Input Reverse Blocking NFET between WRX_IN Pin and VBUS Pin - Block the Reverse Current - Dual-Phase Charge Pump Core - 6A Output Current Ability with DIV2 Mode and 5A with Bypass Mode - Efficiency Up to 98.1% when VOUT = 10V, IOUT = 2A, Switching Frequency = 500k Hz and Dual Phase with VBUS Input in DIV2 Mode - 300k Hz to 1.5MHz Variable Switching Frequency Stay Out of Audio Band - Spread Spectrum Technology for EMI Reduction - Adjustable Single-Phase or Dual-Phase for DIV2 Mode - Programmable Pre-Charge Current and Pre Charge Timing for Charge Soft-Start - Support Converter Soft-Start with 500m A Loading - Support Synchronize Function for Parallel...