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LM4120AIM5-1.8 |LM4120AIM518NSN/a2719avaiPrecision Micropower Low Dropout Voltage Reference
LM4120AIM5-2.0 |LM4120AIM520NSN/a86avaiPrecision Micropower Low Dropout Voltage Reference
LM4120AIM5-2.5 |LM4120AIM525NSN/a2163avaiPrecision Micropower Low Dropout Voltage Reference
LM4120AIM5-3.0 |LM4120AIM530NSN/a15877avaiPrecision Micropower Low Dropout Voltage Reference
LM4120AIM5-3.3 |LM4120AIM533NSCN/a481avaiPrecision Micropower Low Dropout Voltage Reference
LM4120AIM5-4.1 |LM4120AIM541NSN/a30000avaiPrecision Micropower Low Dropout Voltage Reference
LM4120AIM5-5.0 |LM4120AIM550NSCN/a7avaiPrecision Micropower Low Dropout Voltage Reference
LM4120AIM5X-1.8 |LM4120AIM5X18NSN/a2719avaiPrecision Micropower Low Dropout Voltage Reference
LM4120AIM5X-1.8 |LM4120AIM5X18NS国半N/a28000avaiPrecision Micropower Low Dropout Voltage Reference
LM4120AIM5X-1.8 |LM4120AIM5X18NATIONALN/a400avaiPrecision Micropower Low Dropout Voltage Reference
LM4120AIM5X-2.0 |LM4120AIM5X20NSN/a3280avaiPrecision Micropower Low Dropout Voltage Reference
LM4120IM5X-1.8 |LM4120IM5X18NASN/a3000avaiPrecision Micropower Low Dropout Voltage Reference
LM4120IM5X-3.3 |LM4120IM5X33N/a2640avaiPrecision Micropower Low Dropout Voltage Reference
LM4120AIM5X-2.0 |LM4120AIM5X20NS国半N/a28000avaiPrecision Micropower Low Dropout Voltage Reference
LM4120AIM5X-2.5 |LM4120AIM5X25NSN/a91avaiPrecision Micropower Low Dropout Voltage Reference
LM4120AIM5X-2.5 |LM4120AIM5X25TIN/a594avaiPrecision Micropower Low Dropout Voltage Reference
LM4120AIM5X-2.5 |LM4120AIM5X25NS国半N/a28000avaiPrecision Micropower Low Dropout Voltage Reference
LM4120AIM5X-3.0 |LM4120AIM5X30NSN/a6910avaiPrecision Micropower Low Dropout Voltage Reference
LM4120AIM5X3.3 |LM4120AIM5X33NATIONALSEMIN/a2472avaiPrecision Micropower Low Dropout Voltage Reference
LM4120AIM5X-3.3 |LM4120AIM5X33NATIONALN/a2700avaiPrecision Micropower Low Dropout Voltage Reference
LM4120AIM5X-3.3 |LM4120AIM5X33NS国半N/a28000avaiPrecision Micropower Low Dropout Voltage Reference
LM4120AIM5X-3.3 |LM4120AIM5X33NSN/a1195avaiPrecision Micropower Low Dropout Voltage Reference
LM4120AIM5X-3.3 |LM4120AIM5X33NSCN/a481avaiPrecision Micropower Low Dropout Voltage Reference
LM4120AIM5X-4.1 |LM4120AIM5X41NSN/a7020avaiPrecision Micropower Low Dropout Voltage Reference
LM4120AIM5X-5.0 |LM4120AIM5X50NSN/a310avaiPrecision Micropower Low Dropout Voltage Reference
LM4120AIM5X-5.0 |LM4120AIM5X50NS国半N/a28000avaiPrecision Micropower Low Dropout Voltage Reference
LM4120IM5-1.8 |LM4120IM518NSN/a3565avaiPrecision Micropower Low Dropout Voltage Reference
LM4120IM5-2.0 |LM4120IM520NSN/a3000avaiPrecision Micropower Low Dropout Voltage Reference
LM4120IM5-2.5 |LM4120IM525NATIONALN/a3750avaiPrecision Micropower Low Dropout Voltage Reference
LM4120IM5-3.0 |LM4120IM530NSCN/a3200avaiPrecision Micropower Low Dropout Voltage Reference
LM4120IM5-3.3 |LM4120IM533NSN/a302avaiPrecision Micropower Low Dropout Voltage Reference
LM4120IM5-4.1 |LM4120IM541NSN/a660avaiPrecision Micropower Low Dropout Voltage Reference
LM4120IM5-5.0 |LM4120IM550NSCN/a2500avaiPrecision Micropower Low Dropout Voltage Reference
LM4120IM5-5.0 |LM4120IM550NATIONALN/a3000avaiPrecision Micropower Low Dropout Voltage Reference
LM4120IM5-5.0 |LM4120IM550NSN/a5603avaiPrecision Micropower Low Dropout Voltage Reference
LM4120IM5X-1.8 |LM4120IM5X18NSN/a2960avaiPrecision Micropower Low Dropout Voltage Reference
LM4120IM5X-1.8 |LM4120IM5X18NATIONALN/a25600avaiPrecision Micropower Low Dropout Voltage Reference
LM4120IM5X-1.8 |LM4120IM5X18NS国半N/a28000avaiPrecision Micropower Low Dropout Voltage Reference
LM4120IM5X-2.0 |LM4120IM5X20NATIONALN/a5470avaiPrecision Micropower Low Dropout Voltage Reference
LM4120IM5X-2.5 |LM4120IM5X25NS国半N/a28000avaiPrecision Micropower Low Dropout Voltage Reference
LM4120IM5X-2.5 |LM4120IM5X25NSN/a21avaiPrecision Micropower Low Dropout Voltage Reference
LM4120IM5X-3.0 |LM4120IM5X30NS国半N/a28000avaiPrecision Micropower Low Dropout Voltage Reference
LM4120IM5X-3.0 |LM4120IM5X30NATIONALN/a14800avaiPrecision Micropower Low Dropout Voltage Reference
LM4120IM5X-3.0 |LM4120IM5X30NSN/a2000avaiPrecision Micropower Low Dropout Voltage Reference
LM4120IM5X3.3 |LM4120IM5X33NATIONALSEMIN/a2640avaiPrecision Micropower Low Dropout Voltage Reference
LM4120IM5X-3.3 |LM4120IM5X33NS国半N/a28000avaiPrecision Micropower Low Dropout Voltage Reference
LM4120IM5X-3.3 |LM4120IM5X33NSN/a2800avaiPrecision Micropower Low Dropout Voltage Reference
LM4120IM5X-3.3 |LM4120IM5X33NSCN/a1452avaiPrecision Micropower Low Dropout Voltage Reference
LM4120IM5X-3.3 |LM4120IM5X33NATIONALN/a9000avaiPrecision Micropower Low Dropout Voltage Reference
LM4120IM5X-4.1 |LM4120IM5X41NS/BDN/a3000avaiPrecision Micropower Low Dropout Voltage Reference
LM4120IM5X-4.1 |LM4120IM5X41NSN/a21000avaiPrecision Micropower Low Dropout Voltage Reference
LM4120IM5X-5.0 |LM4120IM5X50NATIONALN/a1200avaiPrecision Micropower Low Dropout Voltage Reference
LM4120IM5X-5.0 |LM4120IM5X50NS国半N/a28000avaiPrecision Micropower Low Dropout Voltage Reference


LM4120AIM5-4.1 ,Precision Micropower Low Dropout Voltage ReferenceFeaturesn Small SOT23-5 packageThe LM4120 is a precision low power low dropout bandgap@voltage refe ..
LM4120AIM5-5.0 ,Precision Micropower Low Dropout Voltage ReferenceBlock DiagramConnection DiagramDS101047-2Refer to the Ordering Information Table in this Data Sheet ..
LM4120AIM5X-1.8 ,Precision Micropower Low Dropout Voltage ReferenceBlock DiagramConnection DiagramDS101047-2Refer to the Ordering Information Table in this Data Sheet ..
LM4120AIM5X-1.8 ,Precision Micropower Low Dropout Voltage ReferenceApplicationsThe device performance is guaranteed over the industrialn Portable, battery powered equ ..
LM4120AIM5X-1.8 ,Precision Micropower Low Dropout Voltage ReferenceFeaturesn Small SOT23-5 packageThe LM4120 is a precision low power low dropout bandgap@voltage refe ..
LM4120AIM5X-2.0 ,Precision Micropower Low Dropout Voltage ReferenceLM4120 Precision Micropower Low Dropout Voltage ReferenceFebruary 2000LM4120Precision Micropower Lo ..
LP2901D ,Quad, Low-Power, General Purpose Differential Comparatormaximum ratings over operating free-air temperature range (unless otherwise noted)Supply voltage, V ..
LP2901DR ,Quad, Low-Power, General Purpose Differential Comparatormaximum ratings may cause permanent damage to the device. These are stress ratings only, andfunctio ..
LP2901N ,Quad, Low-Power, General Purpose Differential Comparator         The LP239 is obsolete and is no longer supplie ..
LP2902 ,Micropower Quad Operational AmplifierElectrical CharacteristicsT = 25°C, V = 5 V, V = V /2, R = 100 kΩ to GND (unless otherwise noted)A ..
LP2902DR ,Ultra-Low-Power Quadruple Operational Amplifier 14-SOIC -40 to 85maximum ratings" may cause permanent damage to the device. These are stress ratingsonly, and functi ..
LP2902M ,Micropower Quad Operational AmplifierLP324/LP2902 Micropower Quad Operational AmplifierJuly 2001LP324/LP2902Micropower Quad Operational ..


LM4120AIM5-1.8-LM4120AIM5-2.0-LM4120AIM5-2.5-LM4120AIM5-3.0-LM4120AIM5-3.3-LM4120AIM5-4.1-LM4120AIM5-5.0-LM4120AIM5X-1.8-LM4120AIM5X-2.0-LM4120AIM5X-2.5-LM4120AIM5X-3.0-LM4120AIM5X3.3-LM4120AIM5X-3.3-LM4120AIM5X-4.1-LM4120AIM5X-5.0-LM4120IM5-1.8-LM4120IM5-2.0-LM4120IM5-2.5
Precision Micropower Low Dropout Voltage Reference
LM4120
Precision Micropower Low Dropout V oltage Reference
General Description

The LM4120isa precision low power low dropout bandgap
voltage reference withupto5 mA output current source and
sink capability.
This series reference operates with input voltagesas lowas andupto 12V consuming 160μA (Typ.) supply current.In
power down mode, device current dropsto less than2 μA.
The LM4120 comesin two grades(A and Standard) and
seven voltage optionsfor greater flexibility. The best grade
devices(A) havean initial accuracyof 0.2%, while the stan-
dard havean initial accuracyof 0.5%, both witha tempcoof
50ppm/˚C guaranteed from −40˚Cto +125˚C.
The very low dropout voltage, low supply current and
power-down capabilityofthe LM4120 makes this productan
ideal choicefor battery powered and portable applications.
The device performanceis guaranteed over the industrial
temperature range (−40˚Cto +85˚C), while certain specs are
guaranteed over the extended temperature range (−40˚Cto
+125˚C). Please contact Nationalforfull specifications over
the extended temperature range. The LM4120is availablein standard 5-pin SOT-23 package.
Features
Small SOT23-5 package Low dropout voltage: 120 mV Typ@ 1mA High output voltage accuracy: 0.2% Source and Sink current output: ±5mA Supply current: 160μA Typ. Low Temperature Coefficient: 50 ppm/˚C Enablepin Fixed output voltages: 1.8, 2.048, 2.5, 3.0, 3.3, 4.096
and 5.0V Industrial temperature Range: −40˚Cto +85˚C (For extended temperature range, −40˚Cto 125˚C,
contact National Semiconductor)
Applications
Portable, battery powered equipment Instrumentation and process control Automotive& Industrial Test equipment Data acquisition systems Precision regulators Battery chargers Base stations Communications Medical equipment
Functional Block Diagram
Connection Diagram

DS101047-1
DS101047-2
Refertothe Ordering Information Tableinthis Data Sheetfor Specific
Part Number
SOT23-5 Surface Mount Package

February 2000
LM4120
Precision
Micropower
Low
Dropout
oltage
Reference
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