Power Management LDO Linear Regulators Positive Linear Regulators (LDO)

LT3012B - 250mA, 4V to 80V Low Dropout Micropower Linear Regulator

Features

  • Wide Input Voltage Range: 4V to 80V
  • Low Quiescent Current: 40µA
  • Low Dropout Voltage: 400mV
  • Output Current: 250mA
  • No Protection Diodes Needed
  • Adjustable Output from 1.24V to 60V
  • Stable with 3.3µF Output Capacitor
  • Stable with Aluminum, Tantalum or Ceramic Capacitors
  • Reverse-Battery Protection
  • No Reverse Current Flow from Output to Input
  • Thermal Limiting
  • Thermally Enhanced 16-Lead TSSOP and 12-Pin (4mm × 3mm) DFN Packages

Typical Application

LT3012B Typical Application
LT3012B Typical Application

Description

The LT3012B is a high voltage, micropower low dropout linear regulator. The device is capable of supplying 250mA of output current with a dropout voltage of 400mV. Designed for use in battery-powered or high voltage systems, the low quiescent current (40µA operating) makes the LT3012B an ideal choice. Quiescent current is also well controlled in dropout.

Other features of the LT3012B include the ability to operate with very small output capacitors. The regulators are stable with only 3.3µF on the output while most older devices require between 10µF and 100µF for stability. Small ceramic capacitors can be used without any need for series resistance (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 with an adjustable output with a 1.24V reference voltage. The LT3012B regulator is available in the 16-lead TSSOP and 12 pin low profile (0.75mm) (4mm × 3mm) DFN packages with an exposed pad for enhanced thermal handling capability.

Packaging

For complete and up to date package information and drawings, please refer to our packaging page

TSSOP-16, DFN-12

LT3012B Package Drawing
LT3012B Package Drawing

Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LT3012BEDE DFN 12 E $2.93 $2.05 View
LT3012BEDE#PBF DFN 12 E $2.93 $2.05 View
LT3012BEDE#TR DFN 12 E $2.15 View
LT3012BEDE#TRPBF DFN 12 E $2.15 View
LT3012BEFE TSSOP 16 E $3.14 $2.20 View
LT3012BEFE#PBF TSSOP 16 E $3.14 $2.20 View
LT3012BEFE#TR TSSOP 16 E $2.32 View
LT3012BEFE#TRPBF TSSOP 16 E $2.32 View
LT3012EDE DFN 12 E $2.93 $2.05 View
LT3012EDE#PBF DFN 12 E $2.93 $2.05 View
LT3012EDE#TR DFN 12 E $2.15 View
LT3012EDE#TRPBF DFN 12 E $2.15 View
LT3012EFE TSSOP 16 E $3.14 $2.20 View
LT3012EFE#PBF TSSOP 16 E $3.14 $2.20 View
LT3012EFE#TR TSSOP 16 E $2.32 View
LT3012EFE#TRPBF TSSOP 16 E $2.32 View
LT3012HFE#PBF TSSOP 16 H $3.90 $2.73 View
LT3012HFE#TRPBF TSSOP 16 H $2.79 View
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* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology demo boards are offered free of charge to qualified customers. Contact your local sales office or distributor to request a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Click here to view our complete list of demo boards

Applications

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

Simulate

LTspice IV is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. To download LTspice IV and other FREE simulation tools, please visit our Design Simulation page.

To launch a ready to run LTspice demonstration circuit for this part:

  • Step 1: If you have not installed LTspice on this computer, download and install LTspice IV
  • Step 2: Once LTspice is installed, click on the link(s) below to launch the simulation
  • Step 3: If LTspice IV does not automatically open after clicking the link above, you can instead run the simulation by right clicking on the link and selecting "Save Target As". After saving the file to your computer, start LTspice and open the demonstration circuit by selecting 'Open' from the 'File' menu

To explore other ready to run LTspice demonstration circuits, please visit our Demo Circuits Collection.

Related models available in LTspice IV
LT3012
LT3012B

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