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RT8509A PDF预览

RT8509A

更新时间: 2024-11-12 15:50:03
品牌 Logo 应用领域
立锜 - RICHTEK /
页数 文件大小 规格书
12页 198K
描述
暂无描述

RT8509A 技术参数

Status:ActiveVin (min) (V):2.8
Vin (max) (V):14Vout (min) (V):3.5
Vout (max) (V):24Output Adj. Method:Resistor
Iq (typ) (mA):5SW Current Limit (typ) (A):5
Freq (typ) (kHz):1200Freq (min) (kHz):1000
Freq (max) (kHz):1500Ron (typ) (Ohm):0.1
Features:Current Mode Control;Enable Input;OCP;OVP;Stable with Ceramic CapacitorPackage Type:WDFN5x5-12

RT8509A 数据手册

 浏览型号RT8509A的Datasheet PDF文件第2页浏览型号RT8509A的Datasheet PDF文件第3页浏览型号RT8509A的Datasheet PDF文件第4页浏览型号RT8509A的Datasheet PDF文件第5页浏览型号RT8509A的Datasheet PDF文件第6页浏览型号RT8509A的Datasheet PDF文件第7页 
®
RT8509A  
4.5A Step-Up DC/DC Converter  
General Description  
Features  
90% Efficiency  
The RT8509A is a high performance switching Boost  
converter that provides a regulated supply voltage for active  
matrix thin film transistor (TFT) liquid crystal displays  
(LCDs).  
Adjustable Output Up to 24V  
2.8V to 14V Input Supply Voltage  
Input Supply Under-Voltage Lockout  
Fixed 1.2MHz Switching Frequency  
Adjustable Soft-Start  
The RT8509Aincorporates current mode, fixed-frequency,  
pulse width modulation (PWM) circuitry with a built in  
N-MOSFET to achieve high efficiency and fast transient  
response.  
VOUT Over-Voltage Protection  
Over-Temperature Protection  
Thin 12-Lead WDFN Package  
RoHS Compliant and Halogen Free  
The RT8509Ahas a wide input voltage range from 2.8V to  
14V. In addition, the output voltage can be adjusted up to  
24V via an external resistive voltage divider. The maximum  
peak current is limited to 4.5A (min.). Other features  
include adjustable soft-start, over-voltage protection, and  
over-temperature protection.  
Applications  
GIPTFT-LCDPanels  
Ordering Information  
RT8509A  
The RT8509Ais available in the WDFN-12L 5x5 package.  
Package Type  
Marking Information  
QW : WDFN-12L 5x5 (W-Type)  
RT8509AGQW : Product Number  
Lead Plating System  
G : Green (Halogen Free and Pb Free)  
Note :  
RT8509A  
GQW  
YMDNN : Date Code  
YMDNN  
Richtek products are :  
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.  
Simplified Application Circuit  
D1  
L1  
V
IN  
V
OUT  
R4  
C2  
C
C
OUT  
IN  
LX  
R1  
VIN  
VOUT  
C3  
RT8509A  
R2  
FB  
SS  
Enable  
EN  
C
SS  
R3  
GND  
COMP  
C1  
Copyright 2013 Richtek Technology Corporation. All rights reserved.  
©
is a registered trademark of Richtek Technology Corporation.  
DS8509A-00 November 2013  
www.richtek.com  
1

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