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发布者:来自网络 发布时间:2016/12/30 阅读:7452次    关键字: DC-DC
EML3190-5A,36V,420kHz Step-Down Converter


EML3190-5A,36V,420kHz Non-synchronous Step-Down Converter DataSheet

General Description
The EML3190 is a 5A, current-mode step-down
converter with an integrated high-side switch. The
EML3190 operates with the wide input voltage from
4.5V to 36V and provides an adjustable output
voltage from 0.808V to 30V. The EML3190 features a
PWM mode operation with internally fixed 420kHz
switching frequency. The EML3190 provides a single
highly efficient solution with current mode control for
fast loop response and easy compensation. The
EML3190 also automatically enters PSM mode at
light load.
Cycle-by-cycle current limiting and thermal
shutdown are provided for fault condition
protections. An internal 2ms soft-start design reduces
input start-up current and prevents the output
voltage and inductor current from overshooting
during power-up.
The EML3190 requires a minimum number of external
components and is available in E-SOP-8L with
thermally enhanced package.

Features
4.5V to 36V Input Voltage Range
5A Continuous Output Current
60mΩ Internal Power MOSFET Switch
Output Adjustable from 0.808V
Fixed 420kHz Switching Frequency
Synchronize up to 1.5MHz
Power Good Indicator
Cycle-by-Cycle Current Limit, Frequency Fold
Back and thermal shutdown
Stable with Low ESR Output Ceramic
Capacitors
2ms Internal Soft-Start
Thermally Enhanced E-SOP-8L Package

Applications
12V and 24V Distributed Power Systems
Battery Powered Systems
Industrial Power Systems
LCD and Plasma TVs
Automotive System

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