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LM4120
www.ti.com
SNVS049C –FEBRUARY 2000–REVISED APRIL 2013
LM4120 Precision Micropower Low Dropout Voltage Reference
Check for Samples: LM4120
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FEATURES
DESCRIPTION
The LM4120 is a precision low power low dropout
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• Small SOT23-5 Package
bandgap voltage reference with up to 5 mA output
• Low Dropout Voltage: 120 mV Typ @ 1 mA
current source and sink capability.
• High Output Voltage Accuracy: 0.2%
This series reference operates with input voltages as
• Source and Sink Current Output: ±5 mA
low as 2V and up to 12V consuming 160 µA (Typ.)
• Supply Current: 160 μA Typ.
supply current. In power down mode, device current
drops to less than 2 μA.
• Low Temperature Coefficient: 50 ppm/°C
The LM4120 comes in two grades (A and Standard)
• Enable Pin
and seven voltage options for greater flexibility. The
• Fixed Output Voltages: 1.8, 2.048, 2.5, 3.0, 3.3,
best grade devices (A) have an initial accuracy of
4.096 and 5.0V
0.2%, while the standard have an initial accuracy of
• Industrial Temperature Range: −40°C to +85°C
0.5%, both with a tempco of 50ppm/°C ensured from
−40°C to +125°C.
• (For Extended Temperature Range, −40°C to
125°C, Contact Texas Instruments)
The very low dropout voltage, low supply current and
power-down capability of the LM4120 makes this
APPLICATIONS
product an ideal choice for battery powered and
portable applications.
• Portable, Battery Powered Equipment
• Instrumentation and Process Control The device performance is ensured over the industrial
temperature range (−40°C to +85°C), while certain
• Automotive & Industrial
specs are ensured over the extended temperature
• Test Equipment
range (−40°C to +125°C). Please contact Texas
• Data Acquisition Systems
Instruments for full specifications over the extended
temperature range. The LM4120 is available in a
• Precision Regulators
standard 5-pin SOT-23 package.
• Battery Chargers
• Base Stations
• Communications
• Medical Equipment
Functional Block Diagram
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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.
2All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2000–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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