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LM39302

更新时间： 2024-11-29 11:46:35
品牌 Logo 应用领域
南京豪纳 - HN /
页数 文件大小 规格书
10页 311K
描述
5A (超)低压差电压稳压电路. 精度高 LM39502具有输出电压的使能脚和输出电压的调整脚

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LM39302 数据手册

 浏览型号LM39302的Datasheet PDF文件第2页浏览型号LM39302的Datasheet PDF文件第3页浏览型号LM39302的Datasheet PDF文件第4页浏览型号LM39302的Datasheet PDF文件第5页浏览型号LM39302的Datasheet PDF文件第6页浏览型号LM39302的Datasheet PDF文件第7页 
LM39300/39301/39302  
LM39300/39301/39302  
3A Low-Voltage Low-Dropout Regulator  
General Description  
Features  
The LM39300, LM39301, LM39302 are 3.0A LDO linear  
voltage regulators that provide a low voltage, high-current  
output with a minimum of external components. Utilizing  
proprietary Super βeta PNP pass element, the LM39300/  
• 3.0A minimum guaranteed output current  
• 500mV maximum dropout voltage over temperature  
Ideal for 3.0V to 2.5V conversion  
Ideal for 2.5V to 1.8V conversion  
39301/39302offersextremelylowdropout(typically400mVat • 1% initial accuracy  
3.0A) and low ground current (typically 36mA at 3.0A).  
• Low ground current  
• Current limiting and Thermal shutdown  
• Reversed-battery protection  
• Reversed-leakage protection  
• Fast transient response  
• TO-263 and TO-220 packaging  
• TTL/CMOS compatible enable pin (LM39301 only)  
• Error flag output (LM39301 only)  
The LM39300/1/2 is ideal for PC add-in cards that need to  
convert from standard 3.3V to 2.5V or 2.5V to 1.8V. A  
guaranteed maximum dropout voltage of 500mV over all  
operating conditions allows the LM39300/1/2 to provide 2.5V  
from a supply as low as 3V, and 1.8V from a supply as low as  
2.5V. The LM39300/1/2 also has fast transient response for  
heavy switching applications. The device requires only 47μF  
of output capacitance to maintain stability and achieve fast  
transient response  
* Adjustable version (LM39302 only)  
Applications  
The LM39300/1/2 is fully protected with overcurrent limiting,  
thermal shutdown, reversed-battery protection, reversed-  
leakage protection, and reversed-lead insertion. The  
LM39301 offers a TTL-logic compatible enable pin and an  
error flag that indicates under voltage and over current  
conditions. Offered in fixed voltages, the LM39300/1/2 comes  
in the TO-220 and TO-263 packages and is an ideal upgrade  
to older, NPN-based linear voltage regulators.  
• LDO linear regulator for PC add-in cards  
• High-efficiency linear power supplies  
• SMPS post regulator  
• Multimedia and PC processor supplies  
• Low-voltage microcontrollers  
• StrongARM™ processor supply  
The LM39302 is adjustable version.  
Ordering Information  
Park Number  
LM39300T-X.X  
LM39300S-X.X  
LM39301T-X.X  
LM39301S-X.X  
LM39302T  
Junction Temp. Range  
-40ć to +125ć  
-40ć to +125ć  
-40ć to +125ć  
-40ć to +125ć  
-40ć to +125ć  
-40ć to +125ć  
Package  
3-lead TO-220  
3-lead TO-263  
5-lead TO-220  
5-lead TO-263  
5-lead TO-220  
5-lead TO-263  
LM39302S  
Note: 1) X.X =fixed voltage output: 1.5V,1.8V, 2.5V, 3.3V, 5.0V  
2) LM39302: adjustable voltage  
Typical Application  
100kΩ  
LM39300-2.5  
LM39301-2.5  
VIN  
2.5V  
IN  
OUT  
1.5V  
47µF  
VIN  
3.3V  
VOUT  
2.5V  
IN  
OUT  
ENABLE  
SHUTDOWN  
ERROR FLAG  
OUTPUT  
EN  
IN  
FLG  
OUT  
R1  
(1.25V)  
ENABLE  
SHUTDOWN  
EN  
ADJ  
GND  
VIN  
3.3V  
VOUT  
2.5V  
GND  
R2  
47µF  
GND  
47µF  
LM39300-X.X  
LM39302  
Vout=1.25Vx(1+R1/R2)  
R1=R2(Vout/1.25 - 1), R1 could be up to 1M ohms  
LM39301-X.X  
地址: 南京市珠江路 88 号，新世界中心 B 座 4004 室, 邮编:210008  
ADD.: RM. 4004, BLOCK B, NEW WORLD CENTER, NO. 88 ZHUJIANG ROAD, NANJING 210008, CHINA  
电话(TEL.): (86)-25-68853600 传真(FAX): (86)-25-68853600-810  
WEB-SITE: WWW.HN-ELEC.COM  
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