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L7912CV TO-220 packageRepresentative package image. See datasheet for exact dimensions.

L7912CV

by STMicroelectronics

–12 V negative linear voltage regulator, up to 1.5 A, thermal and short-circuit protection, TO-220

ManufacturerSTMicroelectronics
CategoryVoltage Regulators
SeriesL79
PackageTO-220
LifecycleActive
DatasheetL7912CV PDF
Availability
L7912CV Datasheet PDFAll specifications
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L7912CV Overview

The L7912CV is a –12 V fixed negative linear regulator from the ST L79 series in a TO-220 package. It provides local on-card regulation, and since it offers the same voltage options as the L78 positive series it suits split power supplies.

Key Features

  • Output current up to 1.5 A
  • –12 V fixed output
  • Thermal overload protection
  • Short-circuit protection
  • Output SOA protection
  • Output tolerance 4 % at 25 °C (C version)

Applications

  • Local on-card negative-rail regulation
  • Split (±) power supplies with an L78 positive regulator
  • Industrial control power supplies

L7912CV Specifications

Part NumberL7912CV
ManufacturerSTMicroelectronics
CategoryVoltage Regulators
SeriesL79
Package / CaseTO-220
Output voltage–12 V
Output currentUp to 1.5 A
Output tolerance4 % at 25 °C (C version)
ProtectionThermal overload, short-circuit and output SOA
Lifecycle StatusActive

Specifications are taken from the manufacturer's public datasheet and are for reference. Confirm against the latest datasheet before design-in.

L7912CV Pinout & Package

L7912CV is supplied in a TO-220 package. The full pin configuration, pin descriptions and mechanical drawing are published in the STMicroelectronics datasheet (open L7912CV datasheet PDF). Always check the footprint against the latest datasheet revision before layout.

L7912CV Alternatives & Equivalents

Part NumberManufacturerCompatibilityRFQ
L7905CVSTMicroelectronicssame L79 series, other negative voltage
L7812CVSTMicroelectronicsL78 positive series, same 12 V magnitude (complementary rail for split supplies, not a substitute)

Alternatives are for reference. Verify pinout, electrical characteristics and firmware against each datasheet before substituting.

L7912CV Guides & Comparisons

More engineering notes on the PartVane blog.

L7912CV FAQ

Who manufactures L7912CV?

L7912CV is manufactured by STMicroelectronics and belongs to the L79 series. It is listed under Voltage Regulators.

What is L7912CV?

L7912CV: –12 V negative linear voltage regulator, up to 1.5 A, thermal and short-circuit protection, TO-220.

What package does L7912CV come in?

L7912CV comes in a TO-220 package.

Where can I download the L7912CV datasheet and pinout?

The STMicroelectronics datasheet for L7912CV is linked in the Datasheet section of this page (https://www.st.com/resource/en/datasheet/l79.pdf). The pin configuration and package drawing are in that datasheet.

Is L7912CV still in production?

The manufacturer lists L7912CV as Active.

What is the equivalent or alternative to L7912CV?

Documented alternatives to L7912CV: L7905CV (STMicroelectronics, same L79 series, other negative voltage); L7812CV (STMicroelectronics, L78 positive series, same 12 V magnitude (complementary rail for split supplies, not a substitute)). Always verify pinout and electrical characteristics against each datasheet before substituting.

Do you have L7912CV in stock?

Yes. PartVane holds stock of L7912CV. Send the quantity you need and we will confirm the available quantity, date code and delivery in the quotation.

How do I get a price and availability for L7912CV?

Message the owner on WhatsApp (+86 139 3944 9974), use the quote form on this page or email sales@partvane.com with the quantity and target delivery date. On WhatsApp we quote within 2 hours during business hours (Mon–Sat, 09:00–18:00 China time (UTC+8)); every RFQ is answered within 24 hours. The quotation includes unit price, availability, lead time and photos of the actual parts with the date code / lot label.

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