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LM39100-3.3 PDF预览

LM39100-3.3

更新时间: 2024-11-06 04:20:11
品牌 Logo 应用领域
韩国泰进 - HTC 稳压器
页数 文件大小 规格书
9页 326K
描述
1A Low-Voltage Low-Dropout Regulator

LM39100-3.3 数据手册

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1A Low-Voltage Low-Dropout Regulator  
LM39100/39101/39102  
SOT-223  
FEATURES  
•Fixed and adjustable output voltages to 1.24V  
•410mV typical dropout at 1A  
Ideal for 3.0V to 2.5V conversion  
Ideal for 2.5V to 1.8V or 1.5V conversion  
•1A minimum guaranteed output current  
•1% initial accuracy  
LM39100-X.X Fixed  
SOP-8  
•Low ground current  
•Current limiting and thermal shutdown  
•Reversed-battery protection  
•Reversed-leakage protection  
•Fast transient response  
•Low-profile SOT-223 package  
PIN DESCRIPTION  
CMOS-compatible control input.  
Logic high = enable, logic  
APPLICATIONS  
Enable  
•LDO linear regulator for PC add-in cards  
•PowerPC™ power supplies  
(Input)  
Logic low or open = shutdown  
Supply (Input)  
IN  
•High-efficiency linear power supplies  
•SMPS post regulator  
OUT  
FLG  
Regulator Output  
Flag (Output): Open-collector error flag output.  
Adjustment Input: Feedback input.  
Connect to resitive voltage-divider network  
Connect to resitive voltage-divider network  
Ground  
•Multimedia and PC processor supplies  
•Battery chargers  
ADJ  
•Low-voltage microcontrollers and digital logic  
GND  
ORDERING INFORMATION  
Device  
LM39100- X.X  
LM39101-X.X  
LM39102-Adj  
Marking  
Package  
SOT-223  
SOP-8  
LM39100-X.X  
LM39101-X.X  
LM39102-Adj  
SOP-8  
* X.X = Fixed Vout = 1.5V, 1.8V, 2.5V, 3.3V, 5.0V  
DESCRIPTION  
The LM39100, LM39101, and LM39102 are 1A low-dropout linear voltage regulators that provide low-  
voltage,high-current output from an extremely small package.  
The LM39100/1/2 offers extremely low dropout (typically 410mVat 1A) and low ground current (typically  
12mA at 1A).  
The LM39100 is a fixed output regulator offered in theSOT-223 package. The LM39101 and LM39102 are  
fixedand adjustable regulators, respectively, in a thermally en-hanced power 8-lead SOP (small outline  
package).  
The LM39100/1/2 is ideal for PC add-in cards that need toconvert from standard 5V to 3.3V, 3.3V to 2.5V  
or 2.5V to1.8V. A guaranteed maximum dropout voltage of 630mV overall operating conditions allows the  
LM39100/1/2 to provide2.5V from a supply as low as 3.13V and 1.8V from a supplyas low as 2.43V.  
The LM39100/1/2 is fully protected with over current limiting,thermal shutdown, and reversed-battery  
protection. Fixed voltages of 5.0V, 3.3V, 2.5V,1.8V and 1.5V are available on LM39100/1 with adjustable  
output voltages to 1.24V on LM39102.  
HTC  
1

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