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RT2805A - 500kHz Current Mode Asynchronous Step-Down Converter

Description

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.

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.

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Datasheet preview – RT2805A

Datasheet Details

Part number RT2805A
Manufacturer Richtek
File Size 327.41 KB
Description 500kHz Current Mode Asynchronous Step-Down Converter
Datasheet download datasheet RT2805A Datasheet
Additional preview pages of the RT2805A datasheet.

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Full PDF Text Transcription

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® RT2805A 5A, 36V, 500kHz Current Mode Asynchronous Step-Down Converter General Description 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 startup. In shutdown mode, the regulator draws only 25μA of supply current. The RT2805A requires a minimum number of readily available external components, providing a compact solution.
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