L79

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Negative voltage regulators

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Product overview

Description

The L79 series of three-terminal negative regulators is available in TO-220, TO-220FP and D²PAK packages and several fixed output voltages, making it useful in a wide range of applications.

These regulators can provide local on-card regulation, eliminating the distribution problems associated with single point regulation; furthermore, having the same voltage option as the L78 positive standard series, they are particularly suited for split power supplies. If adequate heat sinking is provided, they can deliver over 1.5 A output current.

Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents.

  • All features

    • Output current up to 1.5 A
    • Output voltages: -5, -8, -12, and -5 V
    • Thermal overload protection
    • Short-circuit protection
    • Output SOA protection
    • Output tolerance 2% (AC version) or 4% (C version) at 25 °C

eDesignSuite

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Power Supply Design Tool

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PFC design with analog and digitial control
Supports various PCB configurations
Power Supply
Choose type:
Input Specification
Input Specification
V
This option is required. And must be less than or equal to Volt. Max [V]
V
This option is required. And must be greater than or equal to Volt. Min [V]
Output
V
this option is required
A
this option is required
Output Power: 0

EDA Symbols, Footprints and 3D Models

STMicroelectronics - L79

Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.

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Symbols

Footprints

Footprints

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3D models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L7905ACD2T-TR
Active
D2PAK Industrial Ecopack2
L7905ACV
Active
TO-220 Industrial Ecopack2
L7905CD2T-TR
Active
D2PAK Industrial Ecopack2
L7905CP
Active
TO-220FP Industrial Ecopack2
L7905CV
Active
TO-220 Industrial Ecopack2
L7905CV-DG
Active
TO-220 Industrial Ecopack2
L7908CV
Active
TO-220 Industrial Ecopack2
L7908CV-DG
Active
TO-220 Industrial Ecopack2
L7912ACV
Active
TO-220 Industrial Ecopack2
L7912ACV-DG
Active
TO-220 Industrial Ecopack2
L7912CD2T-TR
Active
D2PAK Industrial Ecopack2
L7912CP
Active
TO-220FP Industrial Ecopack2
L7912CV
Active
TO-220 Industrial Ecopack2
L7912CV-DG
Active
TO-220 Industrial Ecopack2
L7915ACV
Active
TO-220 Industrial Ecopack2
L7915ACV-DG
Active
TO-220 Industrial Ecopack2
L7915CP
Active
TO-220FP Industrial Ecopack2
L7915CV
Active
TO-220 Industrial Ecopack2
L7915CV-DG
Active
TO-220 Industrial Ecopack2

L7905ACD2T-TR

Package:

D2PAK

Material Declaration**:

PDF XML

Marketing Status

Active

Package

D2PAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L7905ACV

Package:

TO-220

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-220

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L7905CD2T-TR

Package:

D2PAK

Material Declaration**:

PDF XML

Marketing Status

Active

Package

D2PAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L7905CP

Package:

TO-220FP

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-220FP

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L7905CV

Package:

TO-220

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-220

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L7905CV-DG

Package:

TO-220

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-220

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L7908CV

Package:

TO-220

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-220

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L7908CV-DG

Package:

TO-220

Material Declaration**:

Marketing Status

Active

Package

TO-220

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L7912ACV

Package:

TO-220

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-220

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L7912ACV-DG

Package:

TO-220

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-220

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L7912CD2T-TR

Package:

D2PAK

Material Declaration**:

PDF XML

Marketing Status

Active

Package

D2PAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L7912CP

Package:

TO-220FP

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-220FP

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L7912CV

Package:

TO-220

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-220

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L7912CV-DG

Package:

TO-220

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-220

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L7915ACV

Package:

TO-220

Material Declaration**:

Marketing Status

Active

Package

TO-220

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L7915ACV-DG

Package:

TO-220

Material Declaration**:

Marketing Status

Active

Package

TO-220

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L7915CP

Package:

TO-220FP

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-220FP

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L7915CV

Package:

TO-220

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-220

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L7915CV-DG

Package:

TO-220

Material Declaration**:

Marketing Status

Active

Package

TO-220

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

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Part Number
Order from distributors
Order from ST
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ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
L7905CV Available at distributors

Distributor availability of L7905CV

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Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tube TO-220 0 150 CHINA
L7915CP Available at distributors

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Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tube TO-220FP 0 150 CHINA
L7915CV Available at distributors

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Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tube TO-220 0 150 CHINA
L7905ACD2T-TR Available at distributors

Distributor availability of L7905ACD2T-TR

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Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape and Reel D2PAK 0 125 CHINA
L7912CV Available at distributors

Distributor availability of L7912CV

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Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tube TO-220 0 150 CHINA
L7905CP Available at distributors

Distributor availability of L7905CP

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Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tube TO-220FP 0 150 CHINA
L7912CD2T-TR Available at distributors

Distributor availability of L7912CD2T-TR

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Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape and Reel D2PAK 0 150 CHINA
L7915ACV Available at distributors

Distributor availability of L7915ACV

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Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tube TO-220 0 125 CHINA
L7908CV-DG Available at distributors

Distributor availability of L7908CV-DG

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tube TO-220 0 125 CHINA
L7915CV-DG Available at distributors

Distributor availability of L7915CV-DG

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tube TO-220 0 150 CHINA
L7905CD2T-TR Available at distributors

Distributor availability of L7905CD2T-TR

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape and Reel D2PAK 0 150 CHINA
L7912CP Available at distributors

Distributor availability of L7912CP

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tube TO-220FP 0 150 CHINA
L7905CV-DG Available at distributors

Distributor availability of L7905CV-DG

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tube TO-220 0 150 CHINA
L7912ACV Available at distributors

Distributor availability of L7912ACV

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tube TO-220 0 125 CHINA
L7908CV Available at distributors

Distributor availability of L7908CV

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tube TO-220 0 150 CHINA
L7912ACV-DG Available at distributors

Distributor availability of L7912ACV-DG

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tube TO-220 0 150 CHINA
L7905ACV Available at distributors

Distributor availability of L7905ACV

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tube TO-220 0 125 CHINA
L7915ACV-DG Available at distributors

Distributor availability of L7915ACV-DG

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tube TO-220 0 125 CHINA
L7912CV-DG Available at distributors

Distributor availability of L7912CV-DG

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tube TO-220 0 150 CHINA

L7905CV Active

Package:
TO-220
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L7905CV

ECCN (EU):

NEC

Packing Type:

Tube

Operating Temperature (°C)

Min:

0

Max:

150

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

L7915CP Active

Package:
TO-220FP
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L7915CP

ECCN (EU):

NEC

Packing Type:

Tube

Operating Temperature (°C)

Min:

0

Max:

150

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

L7915CV Active

Package:
TO-220
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L7915CV

ECCN (EU):

NEC

Packing Type:

Tube

Operating Temperature (°C)

Min:

0

Max:

150

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

L7905ACD2T-TR Active

Package:
D2PAK
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L7905ACD2T-TR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

0

Max:

125

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

L7912CV Active

Package:
TO-220
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L7912CV

ECCN (EU):

NEC

Packing Type:

Tube

Operating Temperature (°C)

Min:

0

Max:

150

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

L7905CP Active

Package:
TO-220FP
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L7905CP

ECCN (EU):

NEC

Packing Type:

Tube

Operating Temperature (°C)

Min:

0

Max:

150

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

L7912CD2T-TR Active

Package:
D2PAK
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L7912CD2T-TR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

0

Max:

150

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

L7915ACV Active

Package:
TO-220
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L7915ACV

ECCN (EU):

NEC

Packing Type:

Tube

Operating Temperature (°C)

Min:

0

Max:

125

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

L7908CV-DG Active

Package:
TO-220
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L7908CV-DG

ECCN (EU):

NEC

Packing Type:

Tube

Operating Temperature (°C)

Min:

0

Max:

125

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

L7915CV-DG Active

Package:
TO-220
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L7915CV-DG

ECCN (EU):

NEC

Packing Type:

Tube

Operating Temperature (°C)

Min:

0

Max:

150

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

L7905CD2T-TR Active

Package:
D2PAK
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L7905CD2T-TR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

0

Max:

150

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

L7912CP Active

Package:
TO-220FP
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L7912CP

ECCN (EU):

NEC

Packing Type:

Tube

Operating Temperature (°C)

Min:

0

Max:

150

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

L7905CV-DG Active

Package:
TO-220
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L7905CV-DG

ECCN (EU):

NEC

Packing Type:

Tube

Operating Temperature (°C)

Min:

0

Max:

150

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

L7912ACV Active

Package:
TO-220
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L7912ACV

ECCN (EU):

NEC

Packing Type:

Tube

Operating Temperature (°C)

Min:

0

Max:

125

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

L7908CV Active

Package:
TO-220
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L7908CV

ECCN (EU):

NEC

Packing Type:

Tube

Operating Temperature (°C)

Min:

0

Max:

150

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

L7912ACV-DG Active

Package:
TO-220
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L7912ACV-DG

ECCN (EU):

NEC

Packing Type:

Tube

Operating Temperature (°C)

Min:

0

Max:

150

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

L7905ACV Active

Package:
TO-220
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L7905ACV

ECCN (EU):

NEC

Packing Type:

Tube

Operating Temperature (°C)

Min:

0

Max:

125

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

L7915ACV-DG Active

Package:
TO-220
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L7915ACV-DG

ECCN (EU):

NEC

Packing Type:

Tube

Operating Temperature (°C)

Min:

0

Max:

125

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

L7912CV-DG Active

Package:
TO-220
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L7912CV-DG

ECCN (EU):

NEC

Packing Type:

Tube

Operating Temperature (°C)

Min:

0

Max:

150

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

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(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors