EML3191-5A,36V,1.5MHz Step-Down Converter

EML3191-5A,36V,1.5MHz Non-synchronous Step-Down Converter DataSheet

General Description
The EML3191 is frequency adjustable, 5A,
current-mode step-down converter with an
integrated high-side switch. The EML3191 operates
with the wide input voltage from 4.5V to 36V and
provides an adjustable output voltage from 0.808V
to 30V. The EML3191 features a PWM mode
operation with up to 1.5MHz adjustable switching
frequency. The EML3191 also provides a highly
efficient solution with current mode control for fast
loop response and easy compensation. The
EML3191 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 EML3191 is available in E-SOP-8L with thermally
enhanced package.

Features
„ 4.5V to 36V Input Voltage Range
„ 5A Continuous Output Current
„ 65mΩ Internal Power MOSFET Switch
„ Output Adjustable from 0.808V
„ Up to 1.5MHz Adjustable Switching Frequency
„ 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 Systems