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R2A20101BM/NP
Monolithic Synchronous Step-Down DC/DC Converter
REJ03D0790-0300 Rev.3.00 May 14, 2008
Features
• Built-in low Ron power MOS FETs Pch Ron = 0.30 Ω (Typ), Nch Ron = 0.14 Ω (Typ) • High switching frequency: 2 MHz (Max) • Output current: 650 mA (Max) • Output ON/OFF control • Vout control • Power good monitor • Current share for redundant power supply operation • Vout = 0.5 V to (VIN – 0.5) V
Application
• POL (Point of Load) power supplies • Power supply for microcomputer systems MCU-Core, I/O, Memory (DDR, SRAM, FLASH, HDD, etc.), FPGA, DSP, Graphic Processor • Battery powered equipment systems Cellular phone (CDMA power amplifier, MCU, DSP, ASIC), PDA, Digital camera, Portable game, Handy terminal
Operating Circuit Example
Vin 2.5V to 5.5V Cin 4.