Datasheet > RT8252A

RT8252A

更新时间： 2024-09-23 12:25:07

品牌	Logo	应用领域
立锜 - RICHTEK		转换器
页数	文件大小	规格书
14页	196K
描述
2A, 23V, 340kHz Synchronous Step-Down Converter

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技术参数
数据手册

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RT8252A 技术参数

Status：	Active	Vin (min)(V)：	4.5
Vin (max)(V)：	23	Number of Outputs：	1
Vout (min)(V)：	0.8	Vout (max)(V)：	20
Preset Vout(V)：		Output Adj. Method：	Resistor
Iout (max)(A)：	2	Current Limit (typ)(A)：	4.5
Freq (typ)(kHz)：	340	Freq (min)(kHz)：
Freq (max)(kHz)：		Ext Sync：	No
Ron_HS (typ)(mOhm)：	130	Ron_LS (typ)(mOhm)：	130
Iq (typ)(mA)：	0.8	Features：	Adjustable Soft-Start;Current Mode Control;Enable Input;OCP;PSM;Stable with Ceramic Capacitor;UVP
Package Type：	PSOP-8

RT8252A 数据手册

RT8252A

2A, 23V, 340kHz Synchronous Step-Down Converter

General Description

Features

ꢀ

1.5% High Accuracy Feedback Voltage

The RT8252Ais a high efficiency, monolithic synchronous

step-down DC/DC converter that can deliver up to 2A

output current from a 4.5V to 23V input supply. The

RT8252A's current mode architecture and external

compensation allow the transient response to be

optimized over a wide range of loads and output capacitors.

Cycle-by-cycle current limit provides protection against

shorted outputs and soft-start eliminates input current

surge during start-up. The RT8252A also provides under

voltage protection and thermal shutdown prptection. The

low current (<3μA) shutdown mode provides output

disconnect, enabling easy power management in battery-

powered systems. The RT8252A is available in a

SOP-8 (Exposed Pad) package.

^ꢀ4.5V to 23V Input Voltage Range

^ꢀ2A Output Current

^ꢀIntegrated N-MOSFET Switches

^ꢀCurrent Mode Control

^ꢀFixed Frequency Operation : 340kHz

^ꢀAdjustable Output from 0.8V to 20V

^ꢀUp to 95% Efficiency

^ꢀProgrammable Soft-Start

^ꢀStable with Low-ESR Ceramic Output Capacitors

^ꢀCycle-by-Cycle Over Current Protection

^ꢀInput Under Voltage Lockout

ꢀ Output Under Voltage Protection

ꢀ Thermal Shutdown Protection

ꢀ RoHS Compliant and Halogen Free

Ordering Information

RT8252A

Applications

ꢀ Wireless AP/Router

Package Type

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

ꢀ Set-Top-Box

Lead Plating System

G : Green (Halogen Free and Pb Free)

ꢀ Industrial and Commercial Low Power Systems

ꢀ LCDMonitors and TVs

H : UVP Hiccup

L : UVP Latch-Off

Note :

ꢀ Green Electronics/Appliances

ꢀ Point of Load Regulation of High-PerformanceDSPs

Richtek products are :

Pin Configurations

` RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

(TOP VIEW)

BOOT

VIN

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

GND

COMP

Marking Information

GND

RT8252AGSP : Product Number

SOP-8 (Exposed Pad)

RT8252A

x : H or L

xGSPYMDNN

YMDNN : Date Code

DS8252A-02 March 2011

www.richtek.com

12 3 4 5 6 7...14

中文翻译

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与RT8252A相关器件

型号	品牌	获取价格	描述	数据表
RT8252B	RICHTEK	获取价格	2A, 23V, 1.2MHz Synchronous Step-Down Converter
RT8253A	RICHTEK	获取价格	3A, 23V, 340kHz Synchronous Step-Down Converter
RT8253B	RICHTEK	获取价格	3A, 23V, 1.2MHz Synchronous Step-Down Converter
RT8256	RICHTEK	获取价格	2A, 22V, 400kHz Step-Down Converter
RT8258	RICHTEK	获取价格
RT8258GE	RICHTEK	获取价格	Wide Operating Input Voltage Range : 4.5V to 24V
RT8259	RICHTEK	获取价格
RT8259GE	RICHTEK	获取价格	1.2A, 24V, 1.4MHz Step-Down Converter
RT8259GJ6	RICHTEK	获取价格	1.2A, 24V, 1.4MHz Step-Down Converter
RT8259PE	RICHTEK	获取价格	1.2A, 24V, 1.4MHz Step-Down Converter

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