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Datasheet Texas Instruments LM385MX/NOPB

Datasheet Texas Instruments LM385MX/NOPB

ManufacturerTexas Instruments
Part NumberLM385MX/NOPB

Adjustable Micropower Voltage Reference 8-SOIC 0 to 70


  • Download » Datasheet, PDF, 1.3 Mb, Revision: F, 04-05-2013, File uploaded 03-20-2018
    LM185/LM285/LM385 Adjustable Micropower Voltage References datasheet
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    LM185-ADJ, LM285-ADJ, LM385-ADJ SNVS741F – FEBRUARY 2000 – REVISED APRIL 2013 LM185/LM285/LM385 Adjustable Micropower Voltage References
    Check for Samples: LM185-ADJ, LM285-ADJ, LM385-ADJ FEATURES 1 2 Adjustable from 1.24V to 5.30V
    Operating Current of 10ОјA to 20mA
    1% and 2% Initial Tolerance
    1О© Dynamic Impedance
    Low Temperature Coefficient DESCRIPTION
    The LM185/LM285/LM385 are micropower 3-terminal
    adjustable band-gap voltage reference diodes.
    Operating from 1.24 to 5.3V and over a 10ОјA to
    20mA current range, they feature exceptionally low
    dynamic impedance and good temperature stability.
    On-chip trimming is used to provide tight voltage
    tolerance. Since the LM185 band-gap reference uses
    only transistors and resistors, low noise and good
    long-term stability result. Careful design of the LM185 has made the device
    tolerant of capacitive loading, making it easy to use in
    almost any reference application. The wide dynamic
    operating range allows its use with widely varying
    supplies with excellent regulation.
    The extremely low power drain of the LM185 makes it
    useful for micropower circuitry. This voltage reference
    can be used to make portable meters, regulators or ...


Family: LM185-ADJ, LM285-ADJ, LM385-ADJ


Lifecycle StatusActive (Recommended for new designs)
Manufacture's Sample AvailabilityNo


Package TypeDD
Package QTY25002500
Device MarkingLM385M
Width (mm)3.913.91
Length (mm)4.94.9
Thickness (mm)1.581.58
Pitch (mm)1.271.27
Max Height (mm)1.751.75
Mechanical DataDownload »Download »


Initial Accuracy(Max)1,2 %
Iout/Iz(Max)20 mA
Min Iz for Regulation10 uA
Operating Temperature Range0 to 70 C
Package GroupSOIC
Package Size: mm2:W x L8SOIC: 29 mm2: 6 x 4.9(SOIC) PKG
Pin/Package3TO-92, 8SOIC
Reference VoltageAdjustable
Temp Coeff(Max)150 ppm/ degree C
Temp Coeff(Typ)30,50 ppm/ degree C
VO1.24 V
VO Adj(Max)5.3 V
VO Adj(Min)1.24 V
WBN 10-10 kHz(Typ)50 uVrms

Eco Plan


Application Notes

  • Download » Application Notes, PDF, 278 Kb, Revision: B, 04-23-2013
    AN-777 LM2577 Three Output, Isolated Flyback Regulator (Rev. B)
    Many voltage regulator applications require multiple outputs, such as a computer's power supply or aregulator used to meet the voltage requirements inside an automobile. Some of these applications requireisolation between the regulator's input and output for protection and separate ground specifications. Usingthese criteria, a LM2577 simple switcher flyback regulator has been designed with m
  • Download » Application Notes, PDF, 93 Kb, Revision: A, 05-06-2013
    AN-715 LM385 Feedback Provides Regulator Isolation (Rev. A)
    This Application Note describes how to configure the LM3524 as a transformer isolated flyback power supply.
  • Download » Application Notes, PDF, 122 Kb, 03-21-2007
    Negative Buck Switching Regulator (using LM258x)
  • Download » Application Notes, PDF, 287 Kb, Revision: A, 06-23-2010
    TO-92 Packing Options / Ordering Instructions (Rev. A)
  • Download » Application Notes, PDF, 271 Kb, Revision: B, 04-22-2013
    AN-284 Single-Supply Applications of CMOS MICRODACs (Rev. B)
    CMOS data acquisition and conversion products are becoming the ideal choice for microprocessorcontrolled analog systems. The use of CMOS allows the addition of more digital logic functionality on tothe same die as the analog circuitry to minimize external parts requirements. The inherently low powerconsumption is also a big factor for battery operation and low heat generation in large scale

Moldel Line

Series: LM385-ADJ (11)

Manufacturer's Classification

  • Semiconductors > Power Management > Voltage Reference > Shunt Voltage Reference
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