5秒后页面跳转
捷配首页

Datasheet > LT1945
LT1945 PDF预览

LT1945

更新时间： 2024-10-04 14:57:55
品牌 Logo 应用领域
亚德诺 - ADI 转换器
页数 文件大小 规格书
8页 125K
描述
具有正输出和负输出的双通道、微功率 DC/DC 转换器

阅读下载

中文翻译

获取价格

LT1945 数据手册

 浏览型号LT1945的Datasheet PDF文件第2页浏览型号LT1945的Datasheet PDF文件第3页浏览型号LT1945的Datasheet PDF文件第4页浏览型号LT1945的Datasheet PDF文件第5页浏览型号LT1945的Datasheet PDF文件第6页浏览型号LT1945的Datasheet PDF文件第7页 
LT1945  
Dual Micropower DC/DC  
Converter with Positive and  
Negative Outputs  
FEATURES  
DESCRIPTION  
The LT®1945 is a dual micropower DC/DC converter in a  
10-pin MSOP package. Each converter is designed with  
a 350mA current limit and an input voltage range of 1.2V  
to 15V, making the LT1945 ideal for a wide variety of ap-  
plications. Both converters feature a quiescent current of  
only 20μA at no load, which further reduces to 0.5μA in  
shutdown.Acurrentlimited,fixedoff-timecontrolscheme  
conserves operating current, resulting in high efficiency  
over a broad range of load current. The 36V switch allows  
high voltage outputs up to 34V to be easily generated  
without the use of costly transformers. The LT1945’s  
low off-time of 400ns permits the use of tiny, low profile  
inductors and capacitors to minimize footprint and cost  
in space-conscious portable applications.  
n
Generates Well-Regulated Positive and  
Negative Outputs  
Low Quiescent Current:  
n
20μA in Active Mode (per Converter)  
<1μA in Shutdown Mode  
n
Operates with V as Low as 1.2V  
IN  
n
Low V  
Switch: 250mV at 300mA  
CESAT  
n
n
n
Uses Small Surface Mount Components  
High Output Voltage: Up to 34V  
Tiny 10-Pin MSOP Package  
APPLICATIONS  
n
Small TFT LCD Panels  
n
Handheld Computers  
n
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
Battery Backup  
Digital Cameras  
n
TYPICAL APPLICATION  
Dual Output (+12V, –20V) Converter  
Efficiency at VIN = 3.6V  
90  
C4  
L1  
0.1μF  
D1  
10μH  
V
IN  
85  
80  
75  
70  
65  
60  
55  
50  
–20V  
2.7V  
+12V OUTPUT  
–20V OUTPUT  
10mA  
TO 5V  
8
10  
SW1  
100pF  
365k  
V
IN  
2
4
1
5
SHDN1  
NFB1  
C1  
4.7μF  
C2  
1μF  
LT1945  
D2  
SHDN2  
FB2  
24.9k  
GND PGND PGND SW2  
3
7
9
6
115k  
1M  
0.1  
1
10  
100  
C3  
1μF  
LOAD CURRENT (mA)  
4.7pF  
D3  
1945 TA01a  
L2  
10μH  
12V  
20mA  
C1: TAIYO YUDEN JMK212BJ475  
1945 TA01  
C2, C3: TAIYO YUDEN TMK316BJ105  
C4: TAIYO YUDEN EMK107BJ104  
D1, D2, D3: ZETEX ZHCS400  
L1, L2: MURATA LQH3C100  
1945fa  
1
12345678

中文翻译

下载PDF

与LT1945相关器件

型号 品牌 获取价格 描述 数据表
LT1945EMS Linear

获取价格

 		Dual Micropower DC/DC Converter with Positive and Negative Outputs
LT1945EMS#PBF Linear

获取价格

 		LT1945 - Dual Micropower DC/DC Converter with Positive and Negative Outputs; Package: MSOP
LT1945EMS#TR Linear

获取价格

 		LT1945 - Dual Micropower DC/DC Converter with Positive and Negative Outputs; Package: MSOP
LT1945EMS#TRPBF Linear

获取价格

 		LT1945 - Dual Micropower DC/DC Converter with Positive and Negative Outputs; Package: MSOP
LT1945IMS Linear

获取价格

 		暂无描述
LT1945IMS#PBF Linear

获取价格

 		LT1945 - Dual Micropower DC/DC Converter with Positive and Negative Outputs; Package: MSOP
LT1945IMS#TR Linear

获取价格

 		IC 0.4 A DUAL SWITCHING CONTROLLER, PDSO8, PLASTIC, MSOP-10, Switching Regulator or Contro
LT1945IMS#TRPBF Linear

获取价格

 		LT1945 - Dual Micropower DC/DC Converter with Positive and Negative Outputs; Package: MSOP
LT1946 Linear

获取价格

 		1.2MHz Boost DC/DC Converter with 1.5A Switch and Soft-Start
LT1946 ADI

获取价格

 		具 1.5A 开关和软启动功能的 1.2MHz 升压型 DC/DC 转换器

与LT1945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