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LM4132 Datasheet

SOT-23 Precision Low Dropout Voltage Reference

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September 2005
LM4132
SOT-23 Precision Low Dropout Voltage Reference
General Description
Features
The LM4132 family of precision voltage references performs n Output initial voltage accuracy 0.05%
comparable to the best laser-trimmed bipolar references, but n Low temperature coefficient 10ppm/˚C
in cost effective CMOS technology. The key to this break n Low Supply Current, 60µA
through is the use of EEPROM registers for correction of n Enable pin allowing a 3µA shutdown mode
curvature, tempco, and accuracy on a CMOS bandgap ar- n 20mA output current
chitecture that allows package level programming to over-
come assembly shift. The shifts in voltage accuracy and
tempco during assembly of die into plastic packages limit the
maccuracy of references trimmed with laser techniques.
Unlike other LDO references, the LM4132 is capable of
odelivering up to 20mA and does not require an output ca-
pacitor or buffer amplifier. These advantages and the SOT23
.cpackaging are important for space-critical applications.
Series references provide lower power consumption than
shunt references, since they do not have to idle the maxi-
Umum possible load current under no load conditions. This
advantage, the low quiescent current (60µA), and the low
t4dropout voltage (400mV) make the LM4132 ideal for battery-
powered solutions.
The LM4132 is available in five grades (A, B, C, D and E) for
egreater flexibility. The best grade devices (A) have an initial
accuracy of 0.05% with guaranteed temperature coefficient
eof 10ppm/˚C or less, while the lowest grade parts (E) have
han initial accuracy of 0.5% and a tempco of 30ppm/˚C.
n Voltage options 2.048V, 2.5V, 4.096V
n Custom voltage options available (1.8V to 4.096V)
n VIN range of VREF + 400mV to 5.5V @ 10mA
n Stable with low ESR ceramic capacitors
n SOT23-5 Package
Applications
n Instrumentation & Process Control
n Test Equipment
n Data Acquisition Systems
n Base Stations
n Servo Systems
n Portable, Battery Powered Equipment
n Automotive & Industrial
n Precision Regulators
n Battery Chargers
n Communications
n Medical Equipment
STypical Application Circuit
www.Data om*Note: The capacitor CIN is required and the capacitor COUT is optional.
www.DataSheet4U.c© 2005 National Semiconductor Corporation DS201513
20151301
www.national.com


National Semiconductor Electronic Components Datasheet

LM4132 Datasheet

SOT-23 Precision Low Dropout Voltage Reference

No Preview Available !

Connection Diagram
Top View
20151302
SOT23-5 Package
NS Package Number MA05B
Ordering Information
Input Output Voltage Accuracy at
25˚C And Temperature Coefficient
0.05%, 10 ppm/˚C max (A grade)
0.1%, 20 ppm/˚C max (B grade)
0.2%, 20 ppm/˚C max (C grade)
0.4%, 20 ppm/˚C max (D grade)
0.5%, 30 ppm/˚C max (E grade)
LM4132 Supplied as 1000
units, Tape and Reel
LM4132AMF-2.0
LM4132AMF-2.5
LM4132AMF-4.1
LM4132BMF-2.0
LM4132BMF-2.5
LM4132BMF-4.1
LM4132CMF-2.0
LM4132CMF-2.5
LM4132CMF-4.1
LM4132DMF-2.0
LM4132DMF-2.5
LM4132DMF-4.1
LM4132EMF-2.0
LM4132EMF-2.5
LM4132EMF-4.1
Pin Descriptions
Pin #
1
2
3
4
5
Name
N/C
GND
EN
VIN
VREF
LM4132 Supplied as 3000 units,
Tape and Reel
LM4132AMFX-2.0
LM4132AMFX-2.5
LM4132AMFX-4.1
LM4132BMFX-2.0
LM4132BMFX-2.5
LM4132BMFX-4.1
LM4132CMFX-2.0
LM4132CMFX-2.5
LM4132CMFX-4.1
LM4132DMFX-2.0
LM4132DMFX-2.5
LM4132DMFX-4.1
LM4132EMFX-2.0
LM4132EMFX-2.5
LM4132EMFX-4.1
Part Marking
R4BA
R4CA
R4FA
R4BB
R4CB
R4FB
R4BC
R4CC
R4FC
R4BD
R4CD
R4FD
R4BE
R4CE
R4FE
Function
No connect pin, leave floating
Ground
Enable pin
Input supply
Reference output
www.national.com
2


Part Number LM4132
Description SOT-23 Precision Low Dropout Voltage Reference
Maker National Semiconductor
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LM4132 Datasheet PDF






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