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LT138AK PDF预览

LT138AK

更新时间: 2024-11-22 22:55:51
品牌 Logo 应用领域
凌特 - Linear 稳压器
页数 文件大小 规格书
12页 189K
描述
5A Positive Adjustable Voltage Regulator

LT138AK 数据手册

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LT138A/LT338A  
LM138/LM338  
5A Positive Adjustable  
Voltage Regulator  
U
FEATURES  
DESCRIPTIO  
Guaranteed 1% Initial Tolerance  
The LT®138A series of adjustable regulators provide 5A  
outputcurrentoveranoutputvoltagerangeof1.2Vto32V.  
The internal voltage reference is trimmed to less than 1%,  
enabling a very tight output voltage. In addition to excel-  
lent line and load regulation, with full overload protection,  
the LT138A incorporates new current limiting circuitry  
allowing large transient load currents to be handled for  
short periods. Transient load currents of up to 12A can be  
supplied without limiting, eliminating the need for a large  
output capacitor.  
Guaranteed 0.3% Load Regulation  
Guaranteed 5A Output Current  
100% Thermal Limit Burn-In  
12A Transient Output Current  
U
APPLICATIO S  
High Power Linear Regulator  
Battery Chargers  
Power Driver  
Constant-Current Regulator  
The LT138A is an improved version of the popular LM138  
with improved circuit design and advanced process tech-  
niques to provide superior performance and reliability.  
The graph below shows the significant improvement in  
output voltage tolerance achieved by using the LT138A or  
LT338A.  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U
TYPICAL APPLICATIO  
Parallel Regulators for Higher Current*  
Output Voltage Error  
12  
11  
10  
LT338A  
ADJ  
0.01**  
5V  
8A  
V
IN  
V
IN  
V
OUT  
9
2% RESISTORS  
8
7
6
5
4
3
2
1
0
LM338  
1% RESISTORS  
LM338  
LT350A  
ADJ  
0.016**  
LT338A  
V
IN  
V
OUT  
121Ω  
2% RESISTORS  
1% RESISTORS  
1%  
LT338A  
365Ω  
1%  
1
10  
100  
138/338 TA01  
OUTPUT VOLTAGE (V)  
*THIS CIRCUIT WILL NOT WORK WITH LM VERSION DEVICES  
**CURRENT SHARING RESISTORS DEGRADE REGULATION TO 1%  
138A/338A TA02  
1

LT138AK 替代型号

型号 品牌 替代类型 描述 数据表
LM338KSTEEL TI

类似代替

LM138/LM338 5-Amp Adjustable Regulators
LM138K STMICROELECTRONICS

类似代替

THREE-TERMINAL 5 A ADJUSTABLE VOLTAGE REGULATORS
LM338K STMICROELECTRONICS

功能相似

THREE-TERMINAL 5 A ADJUSTABLE VOLTAGE REGULATORS

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