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LM4132CMF-4.1
SOT23 Precision Low Dropout Voltage Reference 5-SOT-23 -40 to 125
LM4132VINInput Output
2.5VVREF
GND
CIN COUT* *
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LM4132, LM4132-Q1SNVS372G –AUGUST 2005–REVISED OCTOBER 2016
LM4132, LM4132-Q1 SOT-23 Precision Low Dropout Voltage Reference Features Qualifiedfor Automotive Applications AEC-Q100 Qualified With the Following Results: Device Temperature Grade1: –40ºCto
+125ºC Ambient Operating Temperature
Range Device HBM ESD Classification Level2 Output Initial Voltage Accuracy: 0.05% Low Temperature Coefficient:10 ppm/°C Low Supply Current:60 µA Enable Pin Allowinga 3-µA Shutdown Mode 20-mA Output Current Voltage Options: 1.8V, 2.048V, 2.5V,3V,
3.3V, 4.096V Custom Voltage Options Available
(1.8Vto 4.096V) VIN Rangeof VREF+ 400 mVto 5.5Vat10 mA Stable With Low-ESR Ceramic Capacitors
Applications Instrumentation and Process Control Test Equipment Data Acquisition Systems Base Stations Servo Systems Portable, Battery-Powered Equipment Automotive and Industrial Precision Regulators Battery Chargers Communications Medical Equipment
DescriptionThe LM4132 familyof precision voltage references
performs comparable to the best laser-trimmed
bipolar references, but in cost-effective CMOS
technology. The keyto this breakthroughis the useof
EEPROM registers for correction of curvature,
temperature coefficient (tempco), and accuracy ona
CMOS band-gap architecture allowing package-level
programmingto overcome assembly shift. The shifts voltage accuracy and tempco during assemblyof
die into plastic packages limit the accuracy of
references trimmed with laser techniques.
Unlike other LDO references, the LM4132 can deliverto20 mA and does not requirean output capacitor buffer amplifier. These advantages along with the
SOT-23 packaging are important for space-critical
applications.
Series references provide lower power consumption
than shunt references, because they do not haveto
idle the maximum possible load current under no-load
conditions. This advantage, the low quiescent current
(60 µA), and the low dropout voltage (400 mV) make
the LM4132 idealfor battery-powered solutions.
The LM4132is availablein five grades (A,B, C,D
andE) for greater flexibility. The best grade devices
(A) have an initial accuracyof 0.05% witha specified
temperature coefficientof 10 ppm/°Cor less, while
the lowest grade devices (E) have an initial accuracy 0.5% anda tempcoof30 ppm/°C.
Device Information(1)(1) Forall available packages, see the orderable addendumat
the endofthe data sheet.
Simplified Schematic
