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EML3408

Elite Semiconductor
Part Number EML3408
Manufacturer Elite Semiconductor
Description Synchronous Step-Down Regulator
Published Jul 17, 2014
Detailed Description ESMT/EMP EML3408 1.5MHz 800mA, Synchronous Step-Down Regulator General Description EML3408 is designed with high effic...
Datasheet PDF File EML3408 PDF File

EML3408
EML3408

Overview
ESMT/EMP EML3408 1.
5MHz 800mA, Synchronous Step-Down Regulator General Description EML3408 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 800mA output current capability.
High 1.
5MHz internal frequency makes small surface mount inductors and Features „ Achieve 95% efficiency „ Input Voltage : 2.
5V to 5.
5V „ Output Current up to 800mA „ 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 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.
EML3408 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 EML3408 is available in SOT-23-5 package.
Applications „ Blue-Tooth devices „ Cellular and Smart Phones „ Personal multi-media Player (PMP) „ Wireless networking „ Digital Still Cameras „ Portable applications Typical Application Vin 3.
3 – 5.
5V 4 VIN SW 3 22 pF VFB 5 1 EN 2 GND 2.
2 uH Vout 2.
7V 。 。 EN Cin 4.
7 uF CER 。 Cout 10uF CER R2 (350KΩ) R1 (100KΩ) FIG.
1 Elite Semiconductor Memory Technology Inc.
/Elite MicroPower Inc.
Publication Date: May 2011 Revision: 1.
3 1/16 ESMT/EMP Connection Diagrams Order information EML3408 EML3408-XXVF05NRR XX Output voltage VF05 SOT-23-5 Package NRR RoHS & Halogen fr...


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