LT3014

RECOMMENDED FOR NEW DESIGNS

20mA, 3V to 80V Low Dropout Micropower Linear Regulator

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Overview

  • Wide Input Voltage Range: 3V to 80V
  • Low Quiescent Current: 7µA
  • Low Dropout Voltage: 350mV
  • Output Current: 20mA
  • LT3014HV Survives 100V Transients (2ms)
  • No Protection Diodes Needed
  • Adjustable Output from 1.22V to 60V
  • 1µA Quiescent Current in Shutdown
  • Stable with 0.47µF Output Capacitor
  • Stable with Aluminum, Tantalum or Ceramic Capacitors
  • Reverse-Battery Protection
  • No Reverse Current Flow from Output
  • Thermal Limiting
  • Available in 5-Lead ThinSOT and 8-Lead DFN Packages

The LT3014 is a high voltage, micropower low dropout linear regulator. The device is capable of supplying 20mA of output current with a dropout voltage of 350mV. Designed for use in battery-powered or high voltage systems, the low quiescent current (7µA operating and 1µA in shutdown) makes the LT3014 an ideal choice. Quiescent current is also well controlled in dropout.

Other features of the LT3014 include the ability to operate with very small output capacitors. The regulators are stable with only 0.47µF on the output while most older devices require between 10µF and 100µF for stability. Small ceramic capacitors can be used without the necessary addition of ESR as is common with other regulators. Internal protection circuitry includes reverse-battery protection, current limiting, thermal limiting and reverse current protection.

The device is available as an adjustable device with a 1.22V reference voltage. The LT3014 regulator is available in the 5-lead ThinSOT and 8-lead DFN packages.

Protected by U.S. Patents including 6118263, 6144250.

  Shutdown Pin
LT3014 Yes
LT3014B No

Applications

  • Low Current High Voltage Regulators
  • Regulator for Battery-Powered Systems
  • Telecom Applications
  • Automotive Applications

LT3014
20mA, 3V to 80V Low Dropout Micropower Linear Regulator
5V Supply with Shutdown Dropout Voltage Product Package 1 Product Package 2
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Documentation

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Protection Switches & Controllers 2
LT4363 RECOMMENDED FOR NEW DESIGNS High Voltage Surge Stopper with Current Limit
LTC4364 RECOMMENDED FOR NEW DESIGNS Surge Stopper with Ideal Diode
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Tools & Simulations

LTspice 1


Models for the following parts are available in LTspice:

  • LT3014
  • LT3014B
LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.


Evaluation Kits

eval board
DC834A

LT3014ES5 Demo Board | Micropower LDO Regulator, 3V ≤ VIN ≤ 80V VOUT = 3.3V/5VOUT @ 20mA

Product Details

Demonstration circuit DC834 is a high voltage micropower voltage regulator using the LT3014 20mA output low dropout linear regulator, which comes in a tiny SOT-23 package. The DC834 has an input voltage range from 3V to 80V. The demo board's jumper-selectable output voltage can be set to 3.3V, 5V or a user-defined value between 1.22V and 60V. The quiescent is typically only 6uA in operation, and less than 1µA in shutdown.

DC834A
LT3014ES5 Demo Board | Micropower LDO Regulator, 3V ≤ VIN ≤ 80V VOUT = 3.3V/5VOUT @ 20mA
DC834A - Schematic

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