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发布者:微桥 发布时间:2011/6/30 阅读:5400次    关键字: EML9366
EML9366-1.5MHz 600mA, Synchronous Buck Regulator


EML9366-1.5MHz 600mA, Synchronous Step-Down Regulator DataSheet 

General Description
   EML9366 is designed with high efficiency step down DC/DC converter for portable devices applications. It features with extreme low quiescent current with no load which is the best fit for extending battery life during the standby mode. The device operates from 2.5V to 5.5V input voltage and up to 600mA output current capability. High 1.5MHz internal frequency makes small surface mount inductors and capacitors possible and reduces overall PCB board space. Further, build-in synchronous switch makes external Schottky diode is no longer needed and efficiency is improved. EML9366 is designed base on pulse width modulation (PWM) for low output voltage ripple and fixed frequency noise, low dropout mode provides 100% duty cycle operation. Low reference voltage is designed for achieving regulated output down to 0.6V. The device is available in an adjustable version and fixed output voltages of 1.2V, 1.5V, 1.8V and 3.3V. The EML9366 is available in SOT package.

Features
􀂄 Achieve 95% efficiency
􀂄 Input Voltage : 2.5V to 5.5V
􀂄 Output Current up to 600mA
􀂄 Reference voltage 0.6V
􀂄 Quiescent Current 200μA with No Load
􀂄 Internal switching frequency 1.5MHz
􀂄 No Schottky Diode needed
􀂄 Low Dropout Operation: 100% Duty Cycle
􀂄 Shutdown current < 1μA
􀂄 Excellent Line and Load Transient Response
􀂄 Over-temperature Protection

Applications
􀂄 Blue-Tooth devices
􀂄 Cellular and Smart Phones
􀂄 Personal multi-media Player (PMP)
􀂄 Wireless networking
􀂄 Digital Still Cameras
􀂄 Portable applications

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