C3225X5R0J476M datasheet(1/16 Pages) RICHTEK

Part #	C3225X5R0J476M

Description	3A, 24V, 3MHz Step-Down Converter

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Manufacturer	RICHTEK [Richtek Technology Corporation]

Direct Link	http://www.richtek.com

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RT8280

®

DS8280-02 March 2012

www.richtek.com

1

©

is a registered trademark of Richtek Technology Corporation.

Note :

Richtek products are :

RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

Suitable for use in SnPb or Pb-free soldering processes.

Pin Configurations

(TOP VIEW)

Applications

DSL Modem for ADSL2+ Standard

Distributed Power Systems

Pre-Regulator for Linear Regulators

SOP-8 (Exposed Pad)

3A, 24V, 3MHz Step-Down Converter

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 25

μA 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

25

μμμμμA 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

BOOT

VIN

SW

GND

RT

EN

FB

COMP

GND

2

3

4

5

6

7

8

9

Ordering Information

Marking Information

RT8280GSP : Product Number

YMDNN : Date Code

RT8280

GSPYMDNN

Package Type

SP : SOP-8 (Exposed Pad-Option 1)

RT8280

Lead Plating System

G : Green (Halogen Free and Pb Free)

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C3225X5R0J476M Datasheet(PDF) 1 Page - Richtek Technology Corporation

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