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LT1071CK

更新时间： 2024-11-19 22:55:47
品牌 Logo 应用领域
凌特 - Linear 稳压器开关
页数 文件大小 规格书
12页 317K
描述
5A and 2.5A High Efficiency Switching Regulators

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中文翻译

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LT1071CK 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
零件包装代码：TO-204AA包装说明：, CAN4/5,.45FL
针数：2Reach Compliance Code：unknown
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.76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 VJESD-30 代码：O-MBFM-P4
JESD-609代码：e0功能数量：1
端子数量：4最高工作温度：100 °C
最低工作温度：最大输出电流：5.5 A
标称输出电压：1.24 V封装主体材料：METAL
封装等效代码：CAN4/5,.45FL封装形状：ROUND
封装形式：FLANGE MOUNT峰值回流温度（摄氏度）：NOT SPECIFIED
认证状态：Not Qualified子类别：Switching Regulator or Controllers
最大供电电流 (Isup)：9 mA表面贴装：NO
切换器配置：BOOST最大切换频率：47 kHz
技术：BIPOLAR温度等级：OTHER
端子面层：Tin/Lead (Sn/Pb)端子形式：PIN/PEG
端子位置：BOTTOM处于峰值回流温度下的最长时间：NOT SPECIFIED
Base Number Matches：1

LT1071CK 数据手册

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LT1070/LT1071  
5A and 2.5A High Efficiency  
Switching Regulators  
U
FEATURES  
DESCRIPTION  
The LT®1070/LT1071 are monolithic high power switch-  
ingregulators.Theycanbeoperatedinallstandardswitch-  
ing configurations including buck, boost, flyback, for-  
ward, inverting and “Cuk”. A high current, high efficiency  
switch is included on the die along with all oscillator,  
control and protection circuitry. Integration of all func-  
tions allows the LT1070/LT1071 to be built in a standard  
5-pin TO-3 or T0-220 power package. This makes it ex-  
tremely easy to use and provides “bust proof” operation  
similar to that obtained with 3-pin linear regulators.  
■
Wide Input Voltage Range: 3V to 60V  
■
Low Quiescent Current: 6mA  
■
Internal 5A Switch (2.5A for LT1071)  
■
Very Few External Parts Required  
■
■
■
■
■
■
Self Protected Against Overloads  
Operates in Nearly All Switching Topologies  
Shutdown Mode Draws Only 50µA Supply Current  
Flyback Regulated Mode Has Fully Floating Outputs  
Comes in Standard 5-Pin Packages  
Can be Externally Synchronized (Consult Factory)  
TheLT1070/LT1071operatewithsupplyvoltagesfrom3V  
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 switching techniques,  
they provide excellent AC and DC load and line regulation.  
U
APPLICATIONS  
■
Logic Supply 5V at 10A  
■
5V Logic to ±15V Op Amp Supply  
■
Off-Line Converter Up to 200W  
TheLT1070/LT1071havemanyuniquefeaturesnotfound  
even on the vastly more difficult to use low power control  
chipspresentlyavailable. Theyuseadaptiveantisatswitch  
drive to allow very wide ranging load currents with no loss  
in efficiency. An externally activated shutdown mode  
reduces total supply current to 50µA typical for standby  
operation. Totally isolated and regulated outputs can be  
generatedbyusingtheoptional“flybackregulationmode”  
built into the LT1070/LT1071, without the need for  
optocouplers or extra transformer windings.  
■
Battery Upconverter  
■
Power Inverter (+ to –) or (– to +)  
■
Fully Floating Multiple Outputs  
■
For Lower Current Applications, See the LT1072  
USER NOTE:  
This data sheet is only intended to provide specifications, graphs and a general functional  
description of the LT1070/LT1071. Application circuits are included to show the capability of the  
LT1070/LT1071. 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. The manual can also be used for the LT1071 by factoring in the lower switch current  
rating. A second Application Note, AN25, which details off-line applications is available.  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U
TYPICAL APPLICATION  
Maximum Output Power*  
Boost Converter (5V to 12V)  
100  
L2  
10µH  
80  
BOOST  
BUCK/BOOST  
O
5V  
L1**  
OUTPUT  
FILTER  
C3  
V
= 30V  
150µH  
60  
40  
20  
0
100µF  
FLYBACK  
D1  
V
12V  
1A  
IN  
V
SW  
FB  
ISOLATED  
+
R1  
C2  
1000µF  
+
LT1070  
10.7k  
C3*  
1%  
100µF  
BUCK/BOOST  
= 5V  
V
GND  
V
C
O
R2  
1.24k  
1%  
0
10  
20  
30  
40  
50  
R3  
1k  
C1  
1µF  
INPUT VOLTAGE (V)  
1070/71 TA02  
*ROUGH GUIDE ONLY. BUCK MODE P  
= 5A • V  
.
OUT  
OUT  
*REQUIRED IF INPUT LEADS ≥ 2"  
**PULSE ENGINEERING 92113  
SPECIAL TOPOLOGIES DELIVER MORE POWER  
1070/71 TA01  
**DIVIDE VERTICAL POWER SCALE BY 2 FOR LT1071  
1
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中文翻译

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LT1071CK 替代型号

型号 品牌 替代类型 描述 数据表
5962-9082502MYA Linear

完全替代

 IC 5.5 A SWITCHING REGULATOR, 47 kHz SWITCHING FREQ-MAX, MBFM4, TO-3, FM-4, Switching Regu

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