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LM4132

更新时间： 2024-02-29 05:36:26
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德州仪器 - TI /
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LM4132 SOT-23 Precision Low Dropout Voltage Reference

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LM4132  
www.ti.com  
SNVS372C –AUGUST 2005–REVISED APRIL 2013  
LM4132 SOT-23 Precision Low Dropout Voltage Reference  
Check for Samples: LM4132  
1
FEATURES  
DESCRIPTION  
The LM4132 family of precision voltage references  
performs comparable to the best laser-trimmed  
bipolar references, but in cost effective CMOS  
technology. The key to this break through is the use  
of EEPROM registers for correction of curvature,  
2
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Output Initial Voltage Accuracy 0.05%  
Low Temperature Coefficient 10ppm/°C  
Low Supply Current, 60µA  
Enable Pin Allowing a 3µA Shutdown Mode  
20mA Output Current  
tempco, and accuracy on  
a
CMOS bandgap  
architecture that allows package level programming  
to overcome assembly shift. The shifts in voltage  
accuracy and tempco during assembly of die into  
plastic packages limit the accuracy of references  
trimmed with laser techniques.  
Voltage Options 1.8V, 2.048V, 2.5V, 3.0V, 3.3V,  
4.096V  
•
Custom Voltage Options Available (1.8V to  
4.096V)  
Unlike other LDO references, the LM4132 is capable  
of delivering up to 20mA and does not require an  
output capacitor or buffer amplifier. These  
advantages and the SOT23 packaging are important  
for space-critical applications.  
•
•
•
VIN Range of VREF + 400mV to 5.5V @ 10mA  
Stable with Low ESR Ceramic Capacitors  
SOT23-5 Package  
APPLICATIONS  
Series references provide lower power consumption  
than shunt references, since they do not have to idle  
the maximum possible load current under no load  
conditions. This advantage, the low quiescent current  
(60µA), and the low dropout voltage (400mV) make  
the LM4132 ideal for battery-powered solutions.  
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Instrumentation & Process Control  
Test Equipment  
Data Acquisition Systems  
Base Stations  
Servo Systems  
The LM4132 is available in five grades (A, B, C, D  
and E) for greater flexibility. The best grade devices  
(A) have an initial accuracy of 0.05% with a specified  
temperature coefficient of 10ppm/°C or less, while the  
lowest grade parts (E) have an initial accuracy of  
0.5% and a tempco of 30ppm/°C.  
Portable, Battery Powered Equipment  
Automotive & Industrial  
Precision Regulators  
Battery Chargers  
Communications  
Medical Equipment  
Typical Application Circuit  
Input  
5V  
Output  
2.5V  
V
V
REF  
IN  
*
C
*
IN  
C
OUT  
LM4132  
EN  
Enable  
GND  
*Note: The capacitor CIN is required and the capacitor COUT is optional.  
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 © 2005–2013, Texas Instruments Incorporated  
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