LT3012 - 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
  • 1µA Quiescent Current in Shutdown
  • 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

LT3012
LT3012
Back to Top

Description

The LT3012 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 and 1µA in shutdown) makes the LT3012 an ideal choice. Quiescent current is also well controlled in dropout.

Other features of the LT3012 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 LT3012 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.

Back to Top

Packaging

TSSOP-16, DFN-12

LT3012
LT3012
Back to Top

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
Buy Now
Request Samples
* 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.

Back to Top

Applications

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

Simulate

LTSpice / SwitcherCAD III is a powerful FREE circuit simulator and schematic capture program, providing macro models for 80% of Linear Technology's switching regulators, over 200 op amp models, as well as resistors, transistors and MOSFET models.

  • Step 1. If you do not already have a copy of LTSpice, click here to download and install LTSpice / SwitcherCAD III

  • Step 2. Once LTSpice is installed, click here for a ready to run  demonstration circuit of the LT3012.

  • Step 3. If LTspice / SwitcherCAD III does not automatically open after clicking the above link, 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 demonstartion circuit by selecting "Open" from the "File" menu.
Back to Top
LM2936HV MAX5023 MAX5024 NCV4269 SPX2975