LM4132
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SNVS372C –AUGUST 2005–REVISED APRIL 2013
LM4132 SOT-23 Precision Low Dropout Voltage Reference
Check for Samples: LM4132
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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,
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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
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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.
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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
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C
*
IN
C
OUT
LM4132
EN
Enable
GND
*Note: The capacitor CIN is required and the capacitor COUT is optional.
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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