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> LT1172IS8
LT1172IS8 PDF预览

LT1172IS8

更新时间： 2024-11-23 22:11:59
品牌 Logo 应用领域
凌特 - Linear 稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数 文件大小 规格书
20页 269K
描述
100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators

阅读下载

中文翻译

获取价格

LT1172IS8 技术参数

是否Rohs认证：不符合生命周期：Transferred
零件包装代码：SOIC包装说明：SOP, SOP8,.25
针数：8Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.05Is Samacsys：N
模拟集成电路 - 其他类型：SWITCHING REGULATOR控制模式：CURRENT-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：60 V
最小输入电压：3 V标称输入电压：15 V
JESD-30 代码：R-PDSO-G8JESD-609代码：e0
长度：4.9 mm湿度敏感等级：1
功能数量：1端子数量：8
最高工作温度：100 °C最低工作温度：-40 °C
最大输出电流：1.25 A标称输出电压：1.24 V
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装等效代码：SOP8,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：235
认证状态：Not Qualified座面最大高度：1.75 mm
子类别：Switching Regulator or Controllers最大供电电流 (Isup)：9 mA
表面贴装：YES切换器配置：BUCK-BOOST
最大切换频率：115 kHz技术：BIPOLAR
温度等级：INDUSTRIAL端子面层：Tin/Lead (Sn/Pb)
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL处于峰值回流温度下的最长时间：20
宽度：3.9 mmBase Number Matches：1

LT1172IS8 数据手册

 浏览型号LT1172IS8的Datasheet PDF文件第2页浏览型号LT1172IS8的Datasheet PDF文件第3页浏览型号LT1172IS8的Datasheet PDF文件第4页浏览型号LT1172IS8的Datasheet PDF文件第5页浏览型号LT1172IS8的Datasheet PDF文件第6页浏览型号LT1172IS8的Datasheet PDF文件第7页 
LT1170/LT1171/LT1172  
100kHz, 5A, 2.5A and 1.25A  
High Efficiency Switching Regulators  
U
FEATURES  
DESCRIPTIO  
■
Wide Input Voltage Range: 3V to 60V  
The LT®1170/LT1171/LT1172 are monolithic high power  
switching regulators. They can be operated in all standard  
switching configurations including buck, boost, flyback,  
forward, inverting and “Cuk.” A high current, high effi-  
■
Low Quiescent Current: 6mA  
■
Internal 5A Switch (2.5A for LT1171,  
1.25A for LT1172)  
■
■
■
■
■
■
■
Shutdown Mode Draws Only 50µA Supply Current  
Very Few External Parts Required  
ciency switch is included on the die along with all oscilla-  
tor, control and protection circuitry. Integration of all  
functionsallowstheLT1170/LT1171/LT1172tobebuiltin  
astandard5-pinTO-3orTO-220powerpackageaswellas  
the 8-pin packages (LT1172). This makes them extremely  
easy to use and provides “bust proof” operation similar to  
Self-Protected Against Overloads  
Operates in Nearly All Switching Topologies  
Flyback-Regulated Mode Has Fully Floating Outputs  
Comes in Standard 5-Pin Packages  
LT1172 Available in 8-Pin MiniDIP and Surface Mount that obtained with 3-pin linear regulators.  
Packages  
Can Be Externally Synchronized  
The LT1170/LT1171/LT1172 operate with supply volt-  
■
ages from 3V to 60V, and draw only 6mA quiescent  
current. They can deliver load power up to 100W with no  
external power devices. By utilizing current-mode switch-  
ing techniques, they provide excellent AC and DC load and  
line regulation.  
U
APPLICATIO S  
■
Logic Supply 5V at 10A  
■
5V Logic to ±15V Op Amp Supply  
The LT1170/LT1171/LT1172 have many unique features  
not found even on the vastly more difficult to use low  
powercontrolchipspresentlyavailable. Theyuseadaptive  
antisat switch drive to allow very wide ranging load cur-  
rents with no loss in efficiency. An externally activated  
shutdown mode reduces total supply current to 50µA  
typically for standby operation.  
■
Battery Upconverter  
■
Power Inverter (+ to –) or (– to +)  
■
Fully Floating Multiple Outputs  
USER NOTE:  
Thisdatasheetisonlyintendedtoprovidespecifications,graphs,andageneralfunctionaldescription  
of the LT1170/LT1171/LT1172. Application circuits are included to show the capability of the  
LT1170/LT1171/LT1172. A complete design manual (AN19) should be obtained to assist in  
developing new designs. This manual contains a comprehensive discussion of both the LT1070 and  
the external components used with it, as well as complete formulas for calculating the values of these  
components. ThemanualcanalsobeusedfortheLT1170/LT1171/LT1172byfactoringinthehigher  
frequency. A CAD design program called SwitcherCADTM is also available.  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
SwitcherCAD is a trademark of Linear Technology Corporation.  
U
TYPICAL APPLICATIO  
Boost Converter (5V to 12V)  
Maximum Output Power*  
L1**  
5V  
L2  
OUTPUT  
FILTER  
50µH  
100  
10µH  
* ROUGH GUIDE ONLY. BUCK MODE  
LT1170  
P
= (5A)(V  
)
OUT  
OUT  
C3  
100µF  
SPECIAL TOPOLOGIES DELIVER  
MORE POWER.  
80  
60  
40  
20  
0
D1  
** DIVIDE VERTICAL POWER SCALE  
BY TWO FOR LT1171, BY FOUR  
FOR LT1172.  
V
IN  
MBR330  
BUCK-BOOST  
= 30V  
12V  
1A  
V
SW  
V
O
+
R1  
BOOST  
C2  
1000µF  
10.7k  
LT1170/1/2 TA02  
LT1170  
FLYBACK  
+
1%  
C3*  
100µF  
FB  
V
GND  
C
R2  
1.24k  
1%  
R3  
1k  
C1  
1µF  
BUCK-BOOST  
V
O
= 5V  
0
10  
20  
30  
40  
50  
*REQUIRED IF INPUT LEADS ≥ 2"  
** COILTRONICS 50-2-52  
PULSE ENGINEERING 92114  
INPUT VOLTAGE (V)  
1170/1/2 TA01  
1
1234567...20

中文翻译

下载PDF

与LT1172IS8相关器件

型号 品牌 获取价格 描述 数据表
LT1172IS8#TR Linear

获取价格

 		暂无描述
LT1172IS8#TRPBF Linear

获取价格

 		LT1172 - 100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators; Package: SO; Pin
LT1172M Linear

获取价格

 		100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators
LT1172MJ8 Linear

获取价格

 		100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators
LT1172MJ8#TRPBF Linear

获取价格

 		IC IC,SMPS CONTROLLER,CURRENT-MODE,BIPOLAR,DIP,8PIN,CERAMIC, Switching Regulator or Contro
LT1172MK Linear

获取价格

 		100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators
LT1172MK#PBF Linear

获取价格

 		IC IC,SMPS CONTROLLER,CURRENT-MODE,BIPOLAR,CANF,4PIN,METAL, Switching Regulator or Control
LT1172MK#TRPBF Linear

获取价格

 		IC IC,SMPS CONTROLLER,CURRENT-MODE,BIPOLAR,CANF,4PIN,METAL, Switching Regulator or Control
LT1172MK/883 ETC

获取价格

 		Current-Mode SMPS Controller
LT1172S8 Linear

获取价格

 		100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators

与LT1172IS8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