描述 Description

The AE2359 is a current mode step-down converter with a built-in power MOSFET to enable smallest solution size power conversion. With the low series resistance power switch it enables a constant output current of up to 1.2A over a wide input supply range. The load and line regulation has excellent response time over the operating input voltage and temperature range. The AE2359 is self protected, through a cycle-by-cycle current limiting algorithm and an on chip thermal protection. The AE2359 will provide the voltage conversion with a low count of widely available standard

external components.

特性 Features

? VIN 4.75V to 24V

? Load current of up to 1.2A

? Internal Power MOSFET

? Stable with Low ESR Ceramic Output Capacitors

? Up to 90 Efficiency

? 0.1μA Shutdown Mode

? Fixed 1.4MHz Frequency

? Thermal Shutdown

? Cycle-by-Cycle Over Current Protection

? Resistor divider adjustable Output: 0.81V to 15V

? SOT26 Package, Lead Free Finish/RoHS Compliant

Applications

? Distributed Power Systems

? Battery Charger

? Pre-Regulator for Linear Regulators

? WLED Drivers