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RT7248H PDF预览

RT7248H

更新时间: 2024-11-12 19:58:07
品牌 Logo 应用领域
立锜 - RICHTEK /
页数 文件大小 规格书
15页 239K
描述
暂无描述

RT7248H 技术参数

Status:ActiveVin (min)(V):4.5
Vin (max)(V):18Number of Outputs:1
Vout (min)(V):0.923Vout (max)(V):15
Preset Vout(V):Output Adj. Method:Resistor
Iout (max)(A):2Current Limit (typ)(A):4
Freq (typ)(kHz):340Freq (min)(kHz):
Freq (max)(kHz):Ext Sync:No
Ron_HS (typ)(mOhm):150Ron_LS (typ)(mOhm):130
Iq (typ)(mA):0.8Features:Adjustable Soft-Start;Current Mode Control;Enable Input;Force PWM;OCP;Stable with Ceramic Capacitor;UVP
Package Type:PSOP-8

RT7248H 数据手册

 浏览型号RT7248H的Datasheet PDF文件第2页浏览型号RT7248H的Datasheet PDF文件第3页浏览型号RT7248H的Datasheet PDF文件第4页浏览型号RT7248H的Datasheet PDF文件第5页浏览型号RT7248H的Datasheet PDF文件第6页浏览型号RT7248H的Datasheet PDF文件第7页 
®
RT7248  
2A, 18V, 340kHz Synchronous Step-Down Converter  
General Description  
Features  
1.5% High Accuracy Feedback Voltage  
The RT7248 is a high efficiency, monolithic synchronous  
step-downDC/DC converter that can deliver up to 2Aoutput  
current from a 4.5V to 18V input supply. The RT7248's  
current mode architecture and external compensation  
allow the transient response to be optimized over a wide  
input range and loads. Cycle-by-cycle current limit  
provides protection against shorted outputs and soft-start  
eliminates input current surge during start up. The RT7248  
also provides under voltage protection and thermal  
shutdown protection. The low current (< 3μA) shutdown  
mode provides output disconnection, enabling easy power  
management in battery-powered systems. The RT7248  
is available in SOP-8 (Exposed Pad) package.  
Input Voltage Range : 4.5V to 18V  
2A Output Current  
Integrated N-MOSFETs  
Current Mode Control  
340kHz Fixed Frequency Operation  
Output Adjustable Voltage Range : 0.923V to 15V  
Efficiency Up to 95%  
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  
Marking Information  
RT7248xGSP : Product Number  
Applications  
RT7248x  
x : H or N  
GSPYMDNN  
Wireless AP/Router  
YMDNN : Date Code  
Set-Top-Box  
Industrial and Commercial Low Power Systems  
LCDMonitors and TVs  
Green Electronics/Appliances  
Point of Load Regulation of High-PerformanceDSPs  
Simplified Application Circuit  
V
IN  
VIN  
BOOT  
RT7248  
C
IN  
C
BOOT  
L
C
SW  
V
OUT  
Chip Enable  
EN  
SS  
R1  
R2  
C
OUT  
FB  
C
C
C
R
SS  
COMP  
GND  
C
P
Copyright 2018 Richtek Technology Corporation. All rights reserved.  
©
is a registered trademark of Richtek Technology Corporation.  
DS7248-03 February 2018  
www.richtek.com  
1

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