5秒后页面跳转
捷配首页

Datasheet > 暂无类别数据> LT1959I
LT1959I PDF预览

LT1959I

更新时间： 2024-01-10 03:00:11
品牌 Logo 应用领域
凌特 - Linear 稳压器开关
页数 文件大小 规格书
24页 295K
描述
4.5A, 500kHz Step-Down Switching Regulator

阅读下载

中文翻译

获取价格

LT1959I 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：D2PAK包装说明：TO-263,
针数：7Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.1模拟集成电路 - 其他类型：SWITCHING REGULATOR
控制模式：CURRENT-MODE最大输入电压：15 V
最小输入电压：4.3 V标称输入电压：5 V
JESD-30 代码：R-PSSO-G7JESD-609代码：e3
长度：10.2235 mm湿度敏感等级：1
功能数量：1端子数量：7
最大输出电流：8.5 A封装主体材料：PLASTIC/EPOXY
封装代码：TO-263封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：250
认证状态：Not Qualified座面最大高度：4.572 mm
表面贴装：YES切换器配置：BUCK
最大切换频率：560 kHz技术：BIPOLAR
端子面层：Matte Tin (Sn)端子形式：GULL WING
端子节距：1.27 mm端子位置：SINGLE
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：8.89 mm
Base Number Matches：1

LT1959I 数据手册

 浏览型号LT1959I的Datasheet PDF文件第2页浏览型号LT1959I的Datasheet PDF文件第3页浏览型号LT1959I的Datasheet PDF文件第4页浏览型号LT1959I的Datasheet PDF文件第5页浏览型号LT1959I的Datasheet PDF文件第6页浏览型号LT1959I的Datasheet PDF文件第7页 
LT1959  
4.5A, 500kHz Step-Down  
Switching Regulator  
U
FEATURES  
DESCRIPTIO  
TheLT®1959isa500kHzmonolithicbuckmodeswitching  
regulatorfunctionallyidenticaltotheLT1506butoptimized  
for lower output voltage applications. It will operate down  
to1.21Voutputcomparedto2.42VfortheLT1506. A4.5A  
switch is included on the die along with all the necessary  
oscillator, control and logic circuitry. High switching fre-  
quency allows a considerable reduction in the size of ex-  
ternal components. The topology is current mode for fast  
transient response and good loop stability.  
■
Operates with Input as Low as 4V  
■
Output Range Down to 1.21V  
■
Constant 500kHz Switching Frequency  
■
Uses All Surface Mount Components  
■
Inductor Size Reduced to 1.8µH  
■
■
■
■
■
■
Saturating Switch Design: 0.07Ω  
Shutdown Current: 20µA  
Easily Synchronizable  
Cycle-by-Cycle Current Limiting  
4.5A Switch  
Current Mode Control  
Aspecialhighspeedbipolarprocessandnewdesigntech-  
niquesachievehighefficiencyathighswitchingfrequency.  
Efficiency is maintained over a wide output current range  
by keeping quiescent supply current to 4mA and by utiliz-  
ing a supply boost capacitor to saturate the power switch.  
U
APPLICATIO S  
■
Portable Computers  
■
The LT1959 fits into standard 7-pin DD and fused lead  
SO-8packages.Fullcycle-by-cycleshort-circuitprotection  
and thermal shutdown are provided. Standard surface  
mount external parts are used, including the inductor and  
capacitors. There is the optional function of shutdown or  
synchronization.Ashutdownsignalreducessupplycurrent  
to20µA.Synchronizationallowsanexternallogiclevelsig-  
naltoincreasetheinternaloscillatorfrom580kHzto1MHz.  
Battery-Powered Systems  
■
Battery Chargers  
Distributed Power  
■
■
5V to 3.3V Conversion  
■
5V to 2.5V Conversion  
■
5V to 1.8V Conversion  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U
TYPICAL APPLICATION  
Efficiency vs Load Current  
5V to 1.8V Down Converter  
D2  
1N914  
90  
V
V
= 3.3V  
OUT  
IN  
= 5V  
L = 10µH  
85  
80  
75  
70  
C2  
0.68µF  
L1  
5µH  
OUTPUT  
1.8V  
BOOST  
LT1959  
INPUT  
5V  
V
IN  
V
SW  
FB  
4A  
C3  
R1  
OPEN  
+
10µF TO  
50µF  
CERAMIC  
1.21k  
OR  
HIGH  
= ON  
SHDN  
GND  
V
C1  
C
+
R2  
2.49k  
100µF, 10V  
SOLID  
C
1.5nF  
D1  
C
MBRS330T3  
TANTALUM  
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0  
1959 TA01  
LOAD CURRENT (A)  
1959 TA02  
1
1234567...24

中文翻译

下载PDF

与LT1959I相关器件

型号 品牌 获取价格 描述 数据表
LT1959IR Linear

获取价格

 		4.5A, 500kHz Step-Down Switching Regulator
LT1959IR#PBF Linear

获取价格

 		LT1959 - 4.5A, 500kHz Step-Down Switching Regulator; Package: DD PAK; Pins: 7; Temperature
LT1959IR#TR Linear

获取价格

 		LT1959 - 4.5A, 500kHz Step-Down Switching Regulator; Package: DD PAK; Pins: 7; Temperature
LT1959IR#TRPBF Linear

获取价格

 		LT1959 - 4.5A, 500kHz Step-Down Switching Regulator; Package: DD PAK; Pins: 7; Temperature
LT1959IS8 Linear

获取价格

 		4.5A, 500kHz Step-Down Switching Regulator
LT1959IS8#PBF Linear

获取价格

 		LT1959 - 4.5A, 500kHz Step-Down Switching Regulator; Package: SO; Pins: 8; Temperature Ran
LT1959IS8#TRPBF Linear

获取价格

 		LT1959 - 4.5A, 500kHz Step-Down Switching Regulator; Package: SO; Pins: 8; Temperature Ran
LT1961 Linear

获取价格

 		4A, 2MHz Dual Phase Step-Up DC/DC Converter in 3mm 3mm DFN
LT1961 ADI

获取价格

 		1.5A、1.25MHz 升压型开关稳压器
LT1961EMS8E Linear

获取价格

 		1.5A, 1.25MHz Step-Up Switching Regulator

与LT1959I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