EML3418-1.3Hz,2A Synchronous Step-Down Converter DataSheet
General Description
EML3418 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 2.0A output current
capability. High 1.3MHz 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.
EML3418 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
for TDFN-8 and SOP-8FD package.
Features
Achieve 95% efficiency
Input Voltage : 2.5V to 5.5V
Output Current up to 2A
Reference voltage 0.6V
Quiescent Current 240μA with No Switching
Internal switching frequency 1.3MHz
No Schottky Diode needed
Low Dropout Operation: 100% Duty Cycle
Shutdown current < 1μA
Excellent Line and Load Transient Response
Over-current and 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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