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RT8298A PDF预览

RT8298A

更新时间: 2024-11-12 21:16:59
品牌 Logo 应用领域
立锜 - RICHTEK /
页数 文件大小 规格书
15页 196K
描述
暂无描述

RT8298A 技术参数

Status:ActiveVin (min) (V):4.5
Vin (max) (V):24Number of Outputs:
Vout (min) (V):0.8Vout (max) (V):15
Preset Vout (V):Output Adj. Method:Resistor
Iout (max) (A):6Current Limit (typ) (A):10
Freq (typ) (kHz):600Freq (min) (kHz):300
Freq (max) (kHz):1500Ext Sync:Yes
Ron_HS (typ) (mOhm):45Ron_LS (typ) (mOhm):
Iq (typ) (mA):0.9Features:Current Mode Control;Cycle-by-Cycle Current Limit;External Synchronization;Force PWM;OCP;UVP
Package Type:PSOP-8

RT8298A 数据手册

 浏览型号RT8298A的Datasheet PDF文件第2页浏览型号RT8298A的Datasheet PDF文件第3页浏览型号RT8298A的Datasheet PDF文件第4页浏览型号RT8298A的Datasheet PDF文件第5页浏览型号RT8298A的Datasheet PDF文件第6页浏览型号RT8298A的Datasheet PDF文件第7页 
®
RT8298A  
6A, 24V, 600kHz Step-Down Converter with Synchronous  
Gate Driver  
General Description  
Features  
4.5V to 24V Input Voltage Range  
The RT8298Ais a synchronous step-downDC/DC converter  
with an integrated high side internal power MOSFET and  
a gate driver for a low side external power MOSFET. It  
can deliver up to 6A output current from a 4.5V to 24V  
input supply. The RT8298A's current mode architecture  
allows the transient response to be optimized over a wider  
input voltage and load range. Cycle-by-cycle current limit  
provides protection against shorted outputs and soft-start  
eliminates input current surge during start-up. The  
RT8298A is synchronizable to an external clock with  
frequency ranging from 300kHz to 1.5MHz.  
6A Output Current  
45mΩ Internal High Side N-MOSFET  
Current Mode Control  
600kHz Switching Frequency  
Adjustable Output from 0.8V to 15V  
Up to 95% Efficiency  
Internal Compensation  
Stable with Ceramic Capacitors  
Synchronous External Clock : 300kHz to 1.5MHz  
Cycle-by-Cycle Current Limit  
Input Under Voltage Lockout  
Output Under Voltage Protection  
Power Good Indicator  
The RT8298A is available in SOP-8 (Exposed Pad)  
packages.  
Thermal Shutdown Protection  
Force PWM Turn On  
Ordering Information  
RT8298A  
RoHS Compliant and Halogen Free  
Package Type  
SP : SOP-8 (Exposed Pad-Option 2)  
Applications  
Lead Plating System  
G : Green (Halogen Free and Pb Free)  
Point of Load Regulator in Distributed Power System  
Digital Set top Boxes  
Note :  
PersonalDigital Recorders  
Richtek products are :  
Broadband Communications  
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.  
Flat Panel TVs and Monitors  
Simplified Application Circuit  
RT8298A  
VIN  
V
BOOT  
IN  
C
C
C
IN  
BOOT  
L
SW  
BG  
V
OUT  
VCC  
Q1  
R1  
R2  
VCC  
C
OUT  
FB  
Chip Enable  
EN/SYNC  
GND  
Copyright 2014 Richtek Technology Corporation. All rights reserved.  
©
is a registered trademark of Richtek Technology Corporation.  
DS8298A-00 July 2014  
www.richtek.com  
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