Datasheet > BuckConv> RT8288A

RT8288A

更新时间： 2024-01-16 15:13:03

品牌	Logo	应用领域
立锜 - RICHTEK		转换器
页数	文件大小	规格书
14页	330K
描述
4A, 21V 500kHz Synchronous Step-Down Converter

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技术参数
数据手册

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RT8288A 技术参数

Status：	Active	Vin (min) (V)：	4.5
Vin (max) (V)：	21	Number of Outputs：	1
Vout (min) (V)：	0.808	Vout (max) (V)：	15
Preset Vout (V)：		Output Adj. Method：	Resistor
Iout (max) (A)：	4	Current Limit (typ) (A)：	7
Freq (typ) (kHz)：	500	Freq (min) (kHz)：
Freq (max) (kHz)：		Ext Sync：	No
Ron_HS (typ) (mOhm)：	120	Ron_LS (typ) (mOhm)：	40
Iq (typ) (mA)：	0.7	Features：	Current Mode Control;Enable Input;Force PWM;Internal Compensation;OCP;Stable with Ceramic Capacitor;UVP
Package Type：	PSOP-8

RT8288A 数据手册

RT8288A

4A, 21V 500kHz Synchronous Step-Down Converter

General Description

Features

^z4A Output Current

The RT8288A is a synchronous step-down regulator with

an internal power MOSFET. It achieves 4A of continuous

output current over a wide input supply range with excellent

load and line regulation. Current mode operation provides

fast transient response and eases loop stabilization.

^zInternal Soft-Start

^z120mΩ/40mΩ Internal Power MOSFET Switch

^zInternal Compensation Minimizes External Parts

Count

^zFixed 500kHz Frequency

Fault condition protection includes cycle-by-cycle current

limiting and thermal shutdown. An internal soft-start

minimizes external parts count and internal compensation

circuitry.

^zThermal Shutdown Protection

^zCycle-by-Cycle Over Current Protection

^zWide 4.5V to 21V Operating Input Range

^zAdjustable Output from 0.808V to 15V

^zAvailable in an SOP-8 (Exposed Pad) Package

^zRoHS Compliant and Halogen Free

The RT8288A requires a minimal number of readily

available external components, providing a compact

solution.

Applications

z Distributive Power Systems

Ordering Information

RT8288A

z Battery Charger

Package Type

SP : SOP-8 (Exposed Pad-Option 2)

z DSL Modems

z Pre-Regulator for Linear Regulators

Lead Plating System

Z : ECO (Ecological Element with

Halogen Free and Pb free)

Note :

Pin Configurations

(TOP VIEW)

Richtek products are :

VIN

GND

VCC

` RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

GND

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

BOOT

SOP-8 (Exposed Pad)

Marking Information

RT8288AZSP : Product Number

RT8288A

ZSPYMDNN

YMDNN : Date Code

is a registered trademark of Richtek Technology Corporation.

DS8288A-03 June 2012

www.richtek.com

12 3 4 5 6 7...14

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