General Description

The RT8259A is a monolithic step-down switch mode converter with a built-in power MOSFET. It achieves 1.5A output current over a wide input supply range with excellent load and line regulation. Current Mode operation provides fast transient response and eases loop stabilization. The chip also provides protection functions such as cycle-by-cycle current limiting and thermal shutdown protection.

Features

● 1.5A Output Current

● 0.3Ω Internal Power MOSFET Switch

● Stable with Low ESR Output Ceramic Capacitors

● Up to 92 Efficiency

● Fixed 1.4MHz Frequency

● Thermal Shutdown

● Cycle-By-Cycle Over Current Protection

● Wide 4.5V to 24V Operating Input Range

● Output Adjustable from 0.8V to 15V

● Available in SOP-8 Package

● RoHS Compliant and Halogen Free

Applications

● Distributed Power Systems

● Battery Charger

● Pre-Regulator for Linear Regulators

● WLED Drivers