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