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Part Name

RT8280 Datasheet

Part Name Description Manufacturer
RT8280 3A, 24V, 3MHz Step-Down Converter Richtek
Richtek Technology Richtek
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RT8280 image

General Description
The RT8280 is a high voltage buck converter that can support an input voltage range from 4.5V to 24V with output current up to 3A. Current mode operation provides fast transient response and eases loop stabilization.
The chip provides protection functions such as cycle-by cycle current limiting and thermal shutdown protection. In shutdown mode, the regulator only draws 25μA of supply current. The RT8280 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 3A
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

Applications
DSL Modem for ADSL2+ Standard
Distributed Power Systems
Pre-Regulator for Linear Regulators

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