D8213

iDESYN D8213 Dual High-Efficiency PWM Step-Down DC-DC Converter General Description The i D8213 is a dual high efficiency Pul se Width Modulated ( PWM) step-down DC-DC c onverter. I t i s capable o f delivering 1. 2A output curr ent o ver a w ide input v oltage range f rom 2.6V t o 5.5V, t he i D8213 is ideally s uited for port able electronic de vices that are powered f rom 1-cell Li-ion battery or from ot her power sources w ithin the range such as cel lular phones , PDAs and other handheld devices. Two operat ional m odes are a vailable: PWM/Lowodes. Internal Ordering Information iD8213 Taping Package R: Tape and Reel FEC:TDFN-12L (3x3) FEA:TDFN-10 (3x3) Output Voltage Voltage Code Adjustable AD Dropout auto-switch and shutdown m synchronous rect ifier wi th low RDS(ON) dramatically reduces conduct ion loss at P WM mode. No external Schottky diode is required in practical application. The i D8213 ent ers Low -Dropout mode w hen norm al PWM cannot pro vide regulated out put voltage by continuously t urning on t he upper PMOS. The iD8213 enter shutdo wn m ode and consum es less than 0. 1 A when EN pin is pulled low. The s witching ripple is easily smoothed-out by s mall package fi ltering e lements due to a fixed operation frequency of 1.5MHz. This along with small TDFN-12L and T DFN-10 pac kage pr ovides small PCB ar ea application. O ther f eatures i nclude soft start, l ower 40 Applications Mobile Phones Personal Information Appliances Wireless and DSL Modems MP3 P...