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RT8278 - 3MHz Step-Down Converter

Description

The RT8278 is a high voltage buck converter that can support an input voltage range from 4.5V to 24V with output current up to 2A.

Current mode operation provides fast transient response and eases loop stabilization.

Features

  • Wide Operating Input Range : 4.5V to 24V Adjustable Output Voltage Range : 0.8V to 15V Output Current up to 2A 25μA Low Shutdown Current High Efficiency up to 90% at 2.2MHz Programmable Frequency : 220kHz to 3MHz Internal Soft-Start Stable with Low ESR Output Ceramic Capacitors Thermal Shutdown Protection Cycle-By-Cycle Over Current Protection RoHS Compliant and Halogen Free Ordering Information RT8278 Package Type SP : SOP-8 (Exposed Pad-Option 1) Lead Plating System G : Green (Halogen Free an.

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Datasheet preview – RT8278

Datasheet Details

Part number RT8278
Manufacturer Richtek
File Size 304.03 KB
Description 3MHz Step-Down Converter
Datasheet download datasheet RT8278 Datasheet
Additional preview pages of the RT8278 datasheet.

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Full PDF Text Transcription

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RT8278 2A, 24V, 3MHz Step-Down Converter General Description The RT8278 is a high voltage buck converter that can support an input voltage range from 4.5V to 24V with output current up to 2A. Current mode operation provides fast transient response and eases loop stabilization. The chip provides protection functions such as cycle-bycycle current limiting and thermal shutdown protection. In shutdown mode, the regulator only draws 25μA of supply current. The RT8278 is available in a SOP-8 (Exposed Pad) package. Features Wide Operating Input Range : 4.5V to 24V Adjustable Output Voltage Range : 0.8V to 15V Output Current up to 2A 25μA Low Shutdown Current High Efficiency up to 90% at 2.
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