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LP3996SDX-3308/NOPB PDF预览

LP3996SDX-3308/NOPB

更新时间： 2024-11-24 02:58:19
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德州仪器 - TI 输出元件调节器
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22页 1204K
描述
LP3996 Dual Linear Regulator with 300 mA and 150 mA Outputs and Power-On-Reset

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LP3996SDX-3308/NOPB 数据手册

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LP3996  
www.ti.com  
SNVS360D –NOVEMBER 2006–REVISED OCTOBER 2013  
LP3996 Dual Linear Regulator with 300 mA and 150 mA Outputs and Power-On-Reset  
Check for Samples: LP3996  
1
FEATURES  
APPLICATIONS  
2
•
2 LDO Outputs with Independent Enable  
•
•
•
Cellular Handsets  
PDAs  
•
1.5% Accuracy at Room Temperature, 3% Over  
Temperature  
Wireless Network Adaptors  
•
Power-On-Reset Function with Adjustable  
Delay  
DESCRIPTION  
The LP3996 is a dual low dropout regulator with  
power-on-reset circuit. The first regulator can source  
150 mA, while the second is capable of sourcing 300  
mA and has a power-on-reset function included.  
•
•
Thermal Shutdown Protection  
Stable with Ceramic Capacitors  
KEY SPECIFICATIONS  
The LP3996 provides 1.5% accuracy requiring an  
ultra low quiescent current of 35 µA. Separate enable  
pins allow each output of the LP3996 to be shut  
down, drawing virtually zero current.  
•
•
•
•
•
Input Voltage Range 2.0V to 6.0V  
Low Dropout Voltage 210 mV at 300 mA  
Ultra-Low IQ (Enabled) 35 µA  
Virtually Zero IQ (Disabled) <10 nA  
The LP3996 is designed to be stable with small  
footprint ceramic capacitors down to 1 µF. An  
external capacitor may be used to set the POR delay  
time as required.  
Package Available in Lead-Free Option  
10-pin 3 mm x 3 mm  
The LP3996 is available in fixed output voltages and  
comes in a 10-pin, 3 mm x 3 mm package.  
Typical Application Circuit  
470 k:  
LP3996  
V
V
V
V
V
IN  
OUT1  
OUT1  
IN  
EN1  
EN2  
EN1  
EN2  
V
OUT2  
POR  
OUT2  
POR  
C
SET  
BYP  
1 PF  
10 nF  
1 PF  
1 PF  
GND  
Sets delay  
for POR  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
All trademarks are the property of their respective owners.  
2
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2006–2013, Texas Instruments Incorporated  
1234567...22

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