RT2805A - Richtek

RT2805A 500kHz Current Mode Asynchronous Step-Down Converter

The RT2805A is a current mode asynchronous step-down converter that achieves excellent load and line regulation. Over a wide input voltage range from 5.5V to 36V and supports output current up to 5A. The Current mode operation provides fast transient response and eases loop stabilization. An adjustable soft-start reduces the stress on the input source at sta.

Features

z 5A Output Current z Wide Operating Input Range 5.5V to 36V z Adjustable Output Voltage from 1.222V to 26V z High Efficiency up to 90% z Internal Compensation Minimizes External Parts Count z Internal Soft-Start z 110mΩ Internal Power MOSFET Switch z 25μA Shutdown Mode z Fixed 500kHz Frequency z Thermal Shutdown z Cycle-by-Cycle Current Limit z Available In an SOP8 (Exposed Pad) Package z RoHS Compliant and Halogen Free Applications z Distributive Power Systems z Battery Charger z DSL Modems z Pre-regulator for Linear Regulators Marking Information RT2805A GSPYMDNN RT2805AGSP : Product Num.