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.
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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
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Provides a step-by-step optimized design of power section and control loop Generates the STM32Cube embedded software package for custom applications and allows firmware project generation, compatible with multiple STM32 IDEs 
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Supports long mission profiles Provides power loss and temperature graphs Helps define heatsink thermal properties 
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Supports long mission profiles Provides power loss and temperature graphs Helps define heatsink thermal properties Twister Sim
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Provides current error graphs. Help to select the right High side current sensing and shunt devices.
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Handles most common configurations Returns circuit components values Provides I/O signal waveforms Inverting, Non Inverting, Window Low side Current Sensing
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EDA Symbols, Footprints and 3D Models
STMicroelectronics - L79
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Symbols
Footprints
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 | NRND | TO-220 | Industrial | Ecopack2 | |
| L7908CV-DG | NRND | TO-220 | Industrial | Ecopack2 | |
| L7912ACV | Active | TO-220 | Industrial | Ecopack2 | |
| L7912ACV-DG | NRND | 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 | NRND | TO-220 | Industrial | Ecopack2 | |
| L7915CP | Active | TO-220FP | Industrial | Ecopack2 | |
| L7915CV | Active | TO-220 | Industrial | Ecopack2 | |
| L7915CV-DG | Active | TO-220 | Industrial | Ecopack2 | |
L7908CV
Package:
TO-220Material Declaration**:
L7908CV-DG
Package:
TO-220Material Declaration**:
L7915ACV
Package:
TO-220Material Declaration**:
L7915ACV-DG
Package:
TO-220Material Declaration**:
L7915CV-DG
Package:
TO-220Material Declaration**:
(**) 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 | Marketing Status | ECCN (US) | ECCN (EU) | Packing Type | Package | Temperature (°C) | Country of Origin | Budgetary Price (US$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||
| L7905CV | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tube | TO-220 | 0 | 150 | CHINA | | ||
| L7915CP | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tube | TO-220FP | 0 | 150 | CHINA | | ||
| L7915CV | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tube | TO-220 | 0 | 150 | CHINA | | ||
| L7905ACD2T-TR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | D2PAK | 0 | 125 | CHINA | | ||
| L7912CV | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tube | TO-220 | 0 | 150 | CHINA | | ||
| L7905CP | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tube | TO-220FP | 0 | 150 | CHINA | | ||
| L7912CD2T-TR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | D2PAK | 0 | 150 | CHINA | | ||
| L7915ACV | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tube | TO-220 | 0 | 125 | CHINA | | ||
| L7908CV-DG | distributors No availability of distributors reported, please contact our sales office | NRND | EAR99 | NEC | Tube | TO-220 | 0 | 125 | CHINA | | ||
| L7915CV-DG | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tube | TO-220 | 0 | 150 | CHINA | | ||
| L7905CD2T-TR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | D2PAK | 0 | 150 | CHINA | | ||
| L7912CP | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tube | TO-220FP | 0 | 150 | CHINA | | ||
| L7905CV-DG | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tube | TO-220 | 0 | 150 | CHINA | | ||
| L7912ACV | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tube | TO-220 | 0 | 125 | CHINA | | ||
| L7908CV | distributors No availability of distributors reported, please contact our sales office | NRND | EAR99 | NEC | Tube | TO-220 | 0 | 150 | CHINA | | ||
| L7912ACV-DG | distributors No availability of distributors reported, please contact our sales office | NRND | EAR99 | NEC | Tube | TO-220 | 0 | 150 | CHINA | | ||
| L7905ACV | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tube | TO-220 | 0 | 125 | CHINA | | ||
| L7915ACV-DG | distributors No availability of distributors reported, please contact our sales office | NRND | EAR99 | NEC | Tube | TO-220 | 0 | 125 | CHINA | | ||
| L7912CV-DG | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tube | TO-220 | 0 | 150 | CHINA | | ||
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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