Datasheet > RT7252A

RT7252A

更新时间： 2024-01-20 16:45:22

品牌	Logo	应用领域
立锜 - RICHTEK		转换器
页数	文件大小	规格书
14页	360K
描述
2A, 17V, 340/800kHz Synchronous Step-Down Converter

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中文翻译

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技术参数
数据手册

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RT7252A 技术参数

Status：	Active	Vin (min) (V)：	4
Vin (max) (V)：	17	Number of Outputs：	1
Vout (min) (V)：	0.8	Vout (max) (V)：	12
Preset Vout (V)：		Output Adj. Method：	Resistor
Iout (max) (A)：	2	Current Limit (typ) (A)：	3.6
Freq (typ) (kHz)：	800	Freq (min) (kHz)：
Freq (max) (kHz)：		Ext Sync：	No
Ron_HS (typ) (mOhm)：	155	Ron_LS (typ) (mOhm)：	150
Iq (typ) (mA)：	0.6	Features：	Current Mode Control;Enable Input;Internal Compensation;OCP;OVP;PSM;Power Good;Stable with Ceramic Capacitor;UVP
Package Type：	PSOP-8

RT7252A 数据手册

RT7252A/B

2A, 17V, 340/800kHz Synchronous Step-Down Converter

General Description

Features

^z4V to 17V Input Voltage Range

The RT7252A/B is a high efficiency, monolithic

synchronous step-downDC/DC converter that can operate

at 340kHz/800kHz, while delivering up to 2A output current

from a 4V to 17V input supply. The RT7252A/B's current

mode architecture allows the transient response to be

optimized. Cycle-by-cycle current limit provides protection

against shorted outputs and soft-start eliminates input

current surge during start-up. Fault conditions also include

output under voltage protection, output over voltage

protection and thermal shutdown. The low current (<5μA)

shutdown mode provides output disconnection, enabling

easy power management in battery-powered systems. The

RT7252A/B is available in a SOP-8 (Exposed Pad)

package.

^z2A Output Current

^zInternal N-MOSFETs

^zCurrent Mode Control

^zFixed Frequency Operation : 340kHz/800kHz

^zOutput Adjustable from 0.8V to 12V

^zUp to 95% Efficiency

^zInternal Compensation

^zStable with Low ESR Ceramic Output Capacitors

^zCycle-by-Cycle Over Current Protection

^zInput Under Voltage Lockout

^zOutput Under Voltage Protection

z Output Over Voltage Protection

z Power Good Indicator

z Thermal Shutdown Protection

z RoHS Compliant and Halogen Free

Ordering Information

RT7252A/B

Package Type

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

Applications

z Industrial and Commercial Low Power Systems

Lead Plating System

Z : ECO (Ecological Element with

Halogen Free and Pb free)

z Computer Peripherals

z LCDMonitors and TVs

z Green Electronics/Appliances

z Point of Load Regulation for High-Performance DSPs,

FPGAs, and ASICs

A : 340kHz

B : 800kHz

Note :

Richtek products are :

Pin Configurations

` 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.

(TOP VIEW)

VIN

GND

PGOOD

GND

Marking Information

RT7252AZSP

BOOT

RT7252AZSP : Product Number

SOP-8 (Exposed Pad)

RT7252A

ZSPYMDNN

YMDNN : Date Code

RT7252BZSP

RT7252BZSP : Product Number

YMDNN : Date Code

RT7252B

ZSPYMDNN

is a registered trademark of Richtek Technology Corporation.

DS7252A/B-01 April 2012

www.richtek.com

12 3 4 5 6 7...14

中文翻译

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与RT7252A相关器件

型号	品牌	获取价格	描述	数据表
RT7252AZSP	RICHTEK	获取价格	IC REG BUCK ADJ 2A SYNC 8SOP
RT7252B	RICHTEK	获取价格	暂无描述
RT7252BZSP	RICHTEK	获取价格	IC REG BUCK ADJ 2A SYNC 8SOP
RT7253A	RICHTEK	获取价格	3A, 17V, 340kHz Synchronous Step-Down Converter
RT7255A	RICHTEK	获取价格	暂无描述
RT7255AGV8	RICHTEK	获取价格	IC REG BUCK ADJ 1.5A SYNC SOT23-
RT7255C	RICHTEK	获取价格	暂无描述
RT7255CGV8	RICHTEK	获取价格	IC REG BUCK ADJ 1.5A SYNC SOT23-
RT7255DGV8	RICHTEK	获取价格	IC REG BUCK ADJ 1.5A SYNC 8TSOT
RT7256A	RICHTEK	获取价格	暂无描述

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