5秒后页面跳转
捷配首页

Datasheet > 电源电路 > 开关式稳压器或控制器> LTC3809EMSE-TR
LTC3809EMSE-TR PDF预览

LTC3809EMSE-TR

更新时间： 2024-09-23 05:43:55
品牌 Logo 应用领域
凌特 - Linear 电阻器控制器
页数 文件大小 规格书
24页 286K
描述
No RSENSE™, Low EMI, Synchronous DC/DC Controller

阅读下载

中文翻译

获取价格

LTC3809EMSE-TR 数据手册

 浏览型号LTC3809EMSE-TR的Datasheet PDF文件第2页浏览型号LTC3809EMSE-TR的Datasheet PDF文件第3页浏览型号LTC3809EMSE-TR的Datasheet PDF文件第4页浏览型号LTC3809EMSE-TR的Datasheet PDF文件第5页浏览型号LTC3809EMSE-TR的Datasheet PDF文件第6页浏览型号LTC3809EMSE-TR的Datasheet PDF文件第7页 
LTC3809  
No RSENSE™, Low EMI,  
Synchronous DC/DC Controller  
FEATURES  
DESCRIPTION  
TheLTC®3809isasynchronousstep-downswitchingregu-  
latorcontrollerthatdrivesexternalcomplementarypower  
MOSFETs using few external components. The constant  
n
No Current Sense Resistor Required  
n
Selectable Spread Spectrum Frequency Modulation  
for Low Noise Operation  
n
Constant Frequency Current Mode Operation for  
frequency current mode architecture with MOSFET V  
DS  
Excellent Line and Load Transient Response  
sensing eliminates the need for a current sense resistor  
n
True PLL for Frequency Locking or Adjustment  
and improves efficiency.  
(Frequency Range: 250kHz to 750kHz)  
Fornoisesensitiveapplications,theLTC3809canbeexter-  
nallysynchronizedfrom250kHzto750kHz. BurstModeis  
inhibitedduringsynchronizationorwhentheSYNC/MODE  
pin is pulled low to reduce noise and RF interference. To  
further reduce EMI, the LTC3809 incorporates a novel  
spread spectrum frequency modulation technique.  
n
Wide V Range: 2.75V to 9.8V  
IN  
OUT  
n
n
n
n
Wide V  
Range: 0.6V to V  
IN  
0.6V 1.5% Reference  
Low Dropout Operation: 100% Duty Cycle  
Selectable Burst Mode®/Pulse-Skipping/Forced  
Continuous Operation  
n
n
n
n
n
Burst Mode operation provides high efficiency operation  
at light loads. 100% duty cycle provides low dropout  
operation, extending operating time in battery-powered  
systems.  
Auxiliary Winding Regulation  
Internal Soft-Start Circuitry  
Output Overvoltage Protection  
Micropower Shutdown: I = 9μA  
Q
Tiny Thermally Enhanced Leadless (3mm × 3mm)  
Theswitchingfrequencycanbeprogrammedupto750kHz,  
allowing the use of small surface mount inductors and  
capacitors.  
DFN and 10-lead MSOP Packages  
APPLICATIONS  
The LTC3809 is available in tiny footprint thermally  
enhanced DFN and 10-lead MSOP packages.  
n
1- or 2-Cell Lithium-Ion Powered Devices  
Portable Instruments  
L, LT, LTC, LTM and Burst Mode are registered trademarks of Linear Technology Corporation.  
n
No R  
is a trademark of Linear Technology Corporation.  
SENSE  
n
All other trademarks are the property of their respective owners.  
Protected by U.S. Patents including 5481178, 5929620, 6580258, 6304066, 5847554,  
6611131, 6498466. Other Patents pending.  
Distributed DC Power Systems  
TYPICAL APPLICATION  
Efficiency and Power Loss vs Load Current  
100  
90  
80  
70  
60  
50  
10k  
EFFICIENCY  
High Efficiency, 550kHz Step-Down Converter  
V
IN  
= 3.3V  
1k  
V
IN  
2.75V TO 9.8V  
V
IN  
= 4.2V  
V
IN  
= 5V  
10μF  
LTC3809  
100  
10  
V
IN  
PLLLPF  
POWER LOSS  
= 4.2V  
SYNC/MODE TG  
V
IN  
59k  
2.2μH  
47μF  
V
2.5V  
2A  
OUT  
V
SW  
FB  
15k  
1
I
TH  
BG  
187k  
FIGURE 10 CIRCUIT  
RUN  
IPRG  
470pF  
V
OUT  
= 2.5V  
GND  
0.1  
10000  
1
10  
100  
1000  
LOAD CURRENT (mA)  
3809 TA01b  
3809 TA01  
3809fc  
1
1234567...24

中文翻译

下载PDF

与LTC3809EMSE-TR相关器件

型号 品牌 获取价格 描述 数据表
LTC3809EMSE-TRPBF Linear

获取价格

 		No RSENSE™, Low EMI, Synchronous DC/DC Contro
LTC3809IDD-1 Linear

获取价格

 		No RSENSETM, Low Input Voltage, Synchronous DC/DC Controller with Output Tracking
LTC3809IDD-1#TR Linear

获取价格

 		暂无描述
LTC3809IDD-1#TRPBF Linear

获取价格

 		LTC3809-1 - No Rsense, Low Input Voltage, Synchronous DC/DC Controller with Output Trackin
LTC3809IDD-1-PBF Linear

获取价格

 		No RSENSETM, Low Input Voltage, Synchronous DC/DC Controller with Output Tracking
LTC3809IDD-1-TR Linear

获取价格

 		No RSENSETM, Low Input Voltage, Synchronous DC/DC Controller with Output Tracking
LTC3809IDD-1-TRPBF Linear

获取价格

 		No RSENSETM, Low Input Voltage, Synchronous DC/DC Controller with Output Tracking
LTC3809IMSE-1 Linear

获取价格

 		No RSENSETM, Low Input Voltage, Synchronous DC/DC Controller with Output Tracking
LTC3809IMSE-1#PBF Linear

获取价格

 		LTC3809-1 - No Rsense, Low Input Voltage, Synchronous DC/DC Controller with Output Trackin
LTC3809IMSE-1#TR Linear

获取价格

 		IC 1 A SWITCHING CONTROLLER, 600 kHz SWITCHING FREQ-MAX, PDSO10, PLASTIC, MSOP-10, Switchi

与LTC3809EMSE-TR相关文章

您还可以找


热门产品
PCB打样/小批量
铝基板
BOM智能配单
PCBA制造
钣金
精密CNC
模具注塑
薄膜开关
精选活动
PCBA打样特惠
四六层板品质升级
铝基板品质升级
一体化电子制造
DFM下载
服务支持
企业认证
产品展示
工厂展示
工艺能力
积分商城
关于捷配
捷配简介
企业文化
公司动态
人才招聘
联系我们
帮助中心
下单流程
付款流程
开票流程
常见问题
全球PCB制造服务专线 400-613-0088

工作时间：9:00-21:00

CEO邮箱：ceo@jiepei.com

投诉邮箱：tousu@jiepei.com

捷配网-微信公众号 微信公众号
捷配网-微信公众号 抖音公众号
资质认证：
合作快递：
支付方式：
Copyright © 2024 Jiepei.com Inc. All Rights Reserved. 版权所有:杭州捷配信息科技有限公司 浙公网安备 33010502006866号 浙ICP备10014259号-119 营业执照ICP证