LM4120AIM5-4.1/NOPB
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Texas Instruments LM4120AIM5-4.1/NOPB

Manufacturer No:
LM4120AIM5-4.1/NOPB
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC VREF SERIES 0.2% SOT23-5
Delivery:
Payment:
iso14001
iso45001
iso9001
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Product Introduction

Overview

The LM4120AIM5-4.1/NOPB, produced by Texas Instruments, is a precision low-power, low dropout bandgap voltage reference. This device is designed to provide high output voltage accuracy and low temperature coefficient, making it suitable for a variety of applications, particularly in battery-powered and portable equipment. The LM4120 operates with input voltages ranging from 2 V to 12 V and consumes a typical supply current of 160 μA. It features an enable pin and can source or sink up to 5 mA of output current. Although the LM4120 is no longer in production, its specifications and features remain relevant for existing designs and as a reference for selecting alternative products.

Key Specifications

Parameter Value Conditions
Package SOT-23 (5)
Body Size (Nom) 1.60 mm × 2.90 mm
Output Voltage Options 1.8, 2.048, 2.5, 3, 3.3, 4.096, 5 V
Output Voltage Accuracy ±0.2% (Grade A), ±0.5% (Standard)
Temperature Coefficient 50 ppm/°C −40°C to 125°C
Source and Sink Current Output ±5 mA
Supply Current 160 μA Typical
Dropout Voltage 120 mV Typical at 1 mA
Industrial Temperature Range −40°C to 85°C
Extended Temperature Range −40°C to 125°C (Contact TI for full specs)

Key Features

  • Small SOT23-5 package for compact designs.
  • Low dropout voltage: 120 mV typical at 1 mA.
  • High output voltage accuracy: 0.2% for Grade A devices and 0.5% for Standard devices.
  • Source and sink current output capability up to ±5 mA.
  • Low supply current: 160 μA typical.
  • Low temperature coefficient: 50 ppm/°C.
  • Enable pin for power management.
  • Seven fixed output voltage options.
  • Industrial temperature range: −40°C to 85°C, with extended range available upon request.
  • Power-down mode with current drop to less than 2 μA.

Applications

  • Portable, battery-powered equipment.
  • Instrumentation and process control.
  • Automotive and industrial systems.
  • Test equipment.
  • Data acquisition systems.
  • Precision regulators.
  • Battery chargers.
  • Base stations and communications equipment.
  • Medical equipment.

Q & A

  1. What is the typical supply current of the LM4120?

    The typical supply current of the LM4120 is 160 μA.

  2. What are the output voltage options for the LM4120?

    The LM4120 is available with fixed output voltages of 1.8, 2.048, 2.5, 3, 3.3, 4.096, and 5 V.

  3. What is the temperature coefficient of the LM4120?

    The temperature coefficient of the LM4120 is 50 ppm/°C.

  4. What is the maximum output current capability of the LM4120?

    The LM4120 can source or sink up to ±5 mA of output current.

  5. What is the dropout voltage of the LM4120 at 1 mA load current?

    The dropout voltage of the LM4120 is typically 120 mV at 1 mA load current.

  6. What is the industrial temperature range of the LM4120?

    The industrial temperature range of the LM4120 is −40°C to 85°C.

  7. Is the LM4120 still in production?

    No, the LM4120 is no longer in production. New designs should consider an alternate product.

  8. What package type is the LM4120 available in?

    The LM4120 is available in a standard 5-pin SOT-23 package.

  9. How does the enable pin function on the LM4120?

    The enable pin allows for power management, reducing the device current to less than 2 μA in power-down mode.

  10. What are some typical applications for the LM4120?

    The LM4120 is commonly used in portable, battery-powered equipment, instrumentation, automotive and industrial systems, test equipment, data acquisition systems, precision regulators, battery chargers, base stations, communications equipment, and medical equipment.

Product Attributes

Reference Type:Series
Output Type:Fixed
Voltage - Output (Min/Fixed):4.096V
Voltage - Output (Max):- 
Current - Output:5 mA
Tolerance:±0.2%
Temperature Coefficient:50ppm/°C
Noise - 0.1Hz to 10Hz:20µVp-p
Noise - 10Hz to 10kHz:36µVp-p
Voltage - Input:2V ~ 12V
Current - Supply:275µA
Current - Cathode:- 
Operating Temperature:-40°C ~ 85°C (TA)
Mounting Type:Surface Mount
Package / Case:SC-74A, SOT-753
Supplier Device Package:SOT-23-5
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Similar Products

Part Number LM4120AIM5-4.1/NOPB LM4120IM5-4.1/NOPB LM4120AIM5X-4.1/NOPB LM4125AIM5-4.1/NOPB
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Product Status Active Active Active Obsolete
Reference Type Series Series Series Series
Output Type Fixed Fixed Fixed Fixed
Voltage - Output (Min/Fixed) 4.096V 4.096V 4.096V 4.096V
Voltage - Output (Max) - - - -
Current - Output 5 mA 5 mA 5 mA 5 mA
Tolerance ±0.2% ±0.5% ±0.2% ±0.2%
Temperature Coefficient 50ppm/°C 50ppm/°C 50ppm/°C 50ppm/°C
Noise - 0.1Hz to 10Hz 20µVp-p 20µVp-p 20µVp-p 20µVp-p
Noise - 10Hz to 10kHz 36µVp-p 36µVp-p 36µVp-p 36µVp-p
Voltage - Input 2V ~ 12V 2V ~ 12V 2V ~ 12V 5V ~ 8V
Current - Supply 275µA 275µA 275µA 290µA
Current - Cathode - - - -
Operating Temperature -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case SC-74A, SOT-753 SC-74A, SOT-753 SC-74A, SOT-753 SC-74A, SOT-753
Supplier Device Package SOT-23-5 SOT-23-5 SOT-23-5 SOT-23-5

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