General Description
The EML3193B is frequency adjustable, 3A,
current-mode step-down converter with an
integrated high-side switch. The EML3193B operates
with the wide input voltage from 4.5V to 36V and
provides an adjustable output voltage from 0.808V
to 30V. The EML3193B features a PWM mode
operation with up to 2MHz adjustable switching
frequency. The EML3193B also provides a highly
efficient solution with current mode control for fast
loop response and easy compensation. The
EML3193B 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 EML3193B is available in E-SOP-8L and TDFN-10L
with thermally enhanced package.

Features
 4.5V to 36V Input Voltage Range
 3A Continuous Output Current
 120mΩ Internal Power MOSFET Switch
 Output Adjustable from 0.808V
 Output Over-Voltage Protection
 Up to 2MHz 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