General Description

The EC1836 is a monolithic, step-down, switch mode converter with a built-in power MOSFET.
It achieves a 0.8A peak-output current over input supply 11V-80V with excellent load and line regulation.
Current-mode operation provides a fast transient response and eases loop stabilization. Fault condition protections include cycle-by-cycle current limiting and thermal shutdown.
The EC1836 requires a minimal number of readily-available external components.
The EC1836 is available in a SOT23-6 package.

Features

◆ 0.8A Peak Output Current
◆ 0.7Ω Internal Power MOSFET
◆ Stable with Low-ESR Ceramic Output Capacitors
◆ Up to 91% Efficiency
◆ 0.1μA Shutdown Mode
◆ Fixed 480KHz Frequency
◆ Thermal Shutdown
◆ Cycle-by-Cycle Over-Current Protection
◆11V to 80V Operating Input Range
◆Max duty 90%
◆ Available in a SOT23-6 Package

Applications

◆ Power Meters
◆ Distributed Power Systems
◆ Battery Chargers
◆ Pre-Regulator for Linear Regulators
◆ WLED Drivers