产品概述
描述
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.
-
所有功能
- 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
eDesignSuite is a comprehensive set of easy-to-use design-aid utilities ready to help you streamline the system development process with a wide range of ST products.
Power Management Design Center
Thermal-electrical Simulators for Components
Signal Conditioning Design Tool
NFC/RFID Calculators
Choose design tool: 
SMPS design, by topology, by type and by product PFC design with analog and digitial control Supports various PCB configurations 
Handles AC-DC and DC-DC design in common topologies Displays interactive and annotated schematic Provides current/voltage graphs, Bode plots, efficiency curves and power-loss data 
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 
Specify input/output power for each node in the tree Check for consistency Design each individual node
Power Supply Design Tool
SMPS design, by topology, by type and by product PFC design with analog and digitial control Supports various PCB configurations Choose type: DC/DC AC/DC 太阳能电池充电器 TestTypeName AC/DC PFC
LED Lighting Design Tool
Handles AC-DC and DC-DC design in common topologies Displays interactive and annotated schematic Provides current/voltage graphs, Bode plots, efficiency curves and power-loss data Choose type: DC/DC AC/DC
Digital Power Workbench
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 Power Tree Designer
Specify input/output power for each node in the tree Check for consistency Design each individual node Choose design tool: 
Select ratings and application waveforms Get junction temperature and blocking voltage graphs Search and sort suitable devices 
Select ratings and application waveforms Estimate power losses Search and sort suitable devices 
Supports long mission profiles Provides power loss and temperature graphs Helps define heatsink thermal properties 
Help select the right ViPOWER Automotive power device Supports load-compatibility, wiring harness optimization, fault condition impact and diagnostic analysis Supports various PCB configurations 
Specify system ratings and surge waveform Search and sort suitable devices 
Build simple schematics and firmware inputs in minutes Quickly generate reliable estimates of: Battery life System power consumption Bill of materials costs
AC Switches Simulator
Select ratings and application waveforms Get junction temperature and blocking voltage graphs Search and sort suitable devices Rectifier Diodes Simulator
Select ratings and application waveforms Estimate power losses Search and sort suitable devices STPOWER Studio
Supports long mission profiles Provides power loss and temperature graphs Helps define heatsink thermal properties Twister Sim
Help select the right ViPOWER Automotive power device Supports load-compatibility, wiring harness optimization, fault condition impact and diagnostic analysis Supports various PCB configurations TVS Simulator
Specify system ratings and surge waveform Search and sort suitable devices Estimate
Build simple schematics and firmware inputs in minutes Quickly generate reliable estimates of: Battery life System power consumption Bill of materials costs Choose design tool: 
Handles multi-stage-designs and common topologies Returns circuit component values Provides gain, phase and group delay graphs Low Pass, High Pass and Band Pass 
Handles most common configurations Returns circuit components values Provides I/O signal waveforms Inverting, Non Inverting, Window 
Returns circuit component values Provides current error graphs 
Provides current error graphs. Help to select the right High side current sensing and shunt devices.
Active Filters
Handles multi-stage-designs and common topologies Returns circuit component values Provides gain, phase and group delay graphs Low Pass, High Pass and Band Pass Comparators
Handles most common configurations Returns circuit components values Provides I/O signal waveforms Inverting, Non Inverting, Window Low side Current Sensing
Returns circuit component values Provides current error graphs High side Current Sensing
Provides current error graphs. Help to select the right High side current sensing and shunt devices. Choose design tool: 
Input geometry and substrate properties Get antenna impedance 
Enter forward and reverse link characteristics The tool returns link budget estimate 
Enter antenna parameter and matching target Select the topology of the matching network The tool returns component values for the desired design targets
NFC Inductance
Input geometry and substrate properties Get antenna impedance UHF Link Budget
Enter forward and reverse link characteristics The tool returns link budget estimate NFC Tuning Circuit
Enter antenna parameter and matching target Select the topology of the matching network The tool returns component values for the desired design targets 特别推荐
EDA符号、封装和3D模型
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.
Please select one model supplier :
符号
封装
3D模型
质量与可靠性
| 产品型号 | Marketing Status | 封装 | 等级规格 | 符合RoHS级别 | 材料声明** |
|---|---|---|---|---|---|
| L7905ACD2T-TR | 批量生产 | D2PAK | 工业 | Ecopack2 | |
| L7905ACV | 批量生产 | TO-220 | 工业 | Ecopack2 | |
| L7905CD2T-TR | 批量生产 | D2PAK | 工业 | Ecopack2 | |
| L7905CP | 批量生产 | TO-220FP | 工业 | Ecopack2 | |
| L7905CV | 批量生产 | TO-220 | 工业 | Ecopack2 | |
| L7905CV-DG | 批量生产 | TO-220 | 工业 | Ecopack2 | |
| L7912ACV | 批量生产 | TO-220 | 工业 | Ecopack2 | |
| L7912CD2T-TR | 批量生产 | D2PAK | 工业 | Ecopack2 | |
| L7912CP | 批量生产 | TO-220FP | 工业 | Ecopack2 | |
| L7912CV | 批量生产 | TO-220 | 工业 | Ecopack2 | |
| L7912CV-DG | 批量生产 | TO-220 | 工业 | Ecopack2 | |
| L7915ACV | 批量生产 | TO-220 | 工业 | Ecopack2 | |
| L7915CP | 批量生产 | TO-220FP | 工业 | Ecopack2 | |
| L7915CV | 批量生产 | TO-220 | 工业 | Ecopack2 | |
| L7915CV-DG | 批量生产 | TO-220 | 工业 | Ecopack2 | |
L7915ACV
Package:
TO-220Material Declaration**:
L7915CV-DG
Package:
TO-220Material Declaration**:
(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此，它们可能不是100%适用于特定的设备。有关特定设备的信息，请联系 销售支持。
样片和购买
Don't show this again
| 产品型号 | 供货状态 | Budgetary Price (US$)*/Qty | 从ST订购 | Order from distributors | 封装 | 包装类型 | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | 温度（ºC） | Operating Temperature (°C) (min) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | |||||||||||||
| L7905CV | | | distributors 无法联系到经销商，请联系我们的销售办事处 | TO-220 | Tube | CHINA | EAR99 | NEC | 0 | 150 | 0 | |||
| L7915CP | | | distributors 无法联系到经销商，请联系我们的销售办事处 | TO-220FP | Tube | CHINA | EAR99 | NEC | 0 | 150 | 0 | |||
| L7915CV | | | distributors 无法联系到经销商，请联系我们的销售办事处 | TO-220 | Tube | CHINA | EAR99 | NEC | 0 | 150 | 0 | |||
| L7905ACD2T-TR | | | distributors 无法联系到经销商，请联系我们的销售办事处 | D2PAK | Tape and Reel | CHINA | EAR99 | NEC | 0 | 125 | 0 | |||
| L7912CV | | | distributors 无法联系到经销商，请联系我们的销售办事处 | TO-220 | Tube | CHINA | EAR99 | NEC | 0 | 150 | 0 | |||
| L7905CP | | | distributors 无法联系到经销商，请联系我们的销售办事处 | TO-220FP | Tube | CHINA | EAR99 | NEC | 0 | 150 | 0 | |||
| L7912CD2T-TR | | | distributors 无法联系到经销商，请联系我们的销售办事处 | D2PAK | Tape and Reel | CHINA | EAR99 | NEC | 0 | 150 | 0 | |||
| L7915ACV | | | distributors 无法联系到经销商，请联系我们的销售办事处 | TO-220 | Tube | CHINA | EAR99 | NEC | 0 | 125 | 0 | |||
| L7915CV-DG | | | distributors 无法联系到经销商，请联系我们的销售办事处 | TO-220 | Tube | CHINA | EAR99 | NEC | 0 | 150 | 0 | |||
| L7905CD2T-TR | | | distributors 无法联系到经销商，请联系我们的销售办事处 | D2PAK | Tape and Reel | CHINA | EAR99 | NEC | 0 | 150 | 0 | |||
| L7912CP | | | distributors 无法联系到经销商，请联系我们的销售办事处 | TO-220FP | Tube | CHINA | EAR99 | NEC | 0 | 150 | 0 | |||
| L7905CV-DG | | | distributors 无法联系到经销商，请联系我们的销售办事处 | TO-220 | Tube | CHINA | EAR99 | NEC | 0 | 150 | 0 | |||
| L7912ACV | | | distributors 无法联系到经销商，请联系我们的销售办事处 | TO-220 | Tube | CHINA | EAR99 | NEC | 0 | 125 | 0 | |||
| L7905ACV | | | distributors 无法联系到经销商，请联系我们的销售办事处 | TO-220 | Tube | CHINA | EAR99 | NEC | 0 | 125 | 0 | |||
| L7912CV-DG | | | distributors 无法联系到经销商，请联系我们的销售办事处 | TO-220 | Tube | CHINA | EAR99 | NEC | 0 | 150 | 0 | |||
L7905CV 批量生产
Budgetary Price (US$)*/Qty:
-
distributors
无法联系到经销商，请联系我们的销售办事处
封装:
TO-220
包装类型:
Tube
RoHS:
-
Country of Origin:
CHINA
ECCN (US):
EAR99
ECCN (EU):
NEC
L7915CP 批量生产
Budgetary Price (US$)*/Qty:
-
distributors
无法联系到经销商，请联系我们的销售办事处
封装:
TO-220FP
包装类型:
Tube
RoHS:
-
Country of Origin:
CHINA
ECCN (US):
EAR99
ECCN (EU):
NEC
L7915CV 批量生产
Budgetary Price (US$)*/Qty:
-
distributors
无法联系到经销商，请联系我们的销售办事处
封装:
TO-220
包装类型:
Tube
RoHS:
-
Country of Origin:
CHINA
ECCN (US):
EAR99
ECCN (EU):
NEC
L7905ACD2T-TR 批量生产
Budgetary Price (US$)*/Qty:
-
distributors
无法联系到经销商，请联系我们的销售办事处
封装:
D2PAK
包装类型:
Tape and Reel
RoHS:
-
Country of Origin:
CHINA
ECCN (US):
EAR99
ECCN (EU):
NEC
L7912CV 批量生产
Budgetary Price (US$)*/Qty:
-
distributors
无法联系到经销商，请联系我们的销售办事处
封装:
TO-220
包装类型:
Tube
RoHS:
-
Country of Origin:
CHINA
ECCN (US):
EAR99
ECCN (EU):
NEC
L7905CP 批量生产
Budgetary Price (US$)*/Qty:
-
distributors
无法联系到经销商，请联系我们的销售办事处
封装:
TO-220FP
包装类型:
Tube
RoHS:
-
Country of Origin:
CHINA
ECCN (US):
EAR99
ECCN (EU):
NEC
L7912CD2T-TR 批量生产
Budgetary Price (US$)*/Qty:
-
distributors
无法联系到经销商，请联系我们的销售办事处
封装:
D2PAK
包装类型:
Tape and Reel
RoHS:
-
Country of Origin:
CHINA
ECCN (US):
EAR99
ECCN (EU):
NEC
L7915ACV 批量生产
Budgetary Price (US$)*/Qty:
-
distributors
无法联系到经销商，请联系我们的销售办事处
封装:
TO-220
包装类型:
Tube
RoHS:
-
Country of Origin:
CHINA
ECCN (US):
EAR99
ECCN (EU):
NEC
L7915CV-DG 批量生产
Budgetary Price (US$)*/Qty:
-
distributors
无法联系到经销商，请联系我们的销售办事处
封装:
TO-220
包装类型:
Tube
RoHS:
-
Country of Origin:
CHINA
ECCN (US):
EAR99
ECCN (EU):
NEC
L7905CD2T-TR 批量生产
Budgetary Price (US$)*/Qty:
-
distributors
无法联系到经销商，请联系我们的销售办事处
封装:
D2PAK
包装类型:
Tape and Reel
RoHS:
-
Country of Origin:
CHINA
ECCN (US):
EAR99
ECCN (EU):
NEC
L7912CP 批量生产
Budgetary Price (US$)*/Qty:
-
distributors
无法联系到经销商，请联系我们的销售办事处
封装:
TO-220FP
包装类型:
Tube
RoHS:
-
Country of Origin:
CHINA
ECCN (US):
EAR99
ECCN (EU):
NEC
L7905CV-DG 批量生产
Budgetary Price (US$)*/Qty:
-
distributors
无法联系到经销商，请联系我们的销售办事处
封装:
TO-220
包装类型:
Tube
RoHS:
-
Country of Origin:
CHINA
ECCN (US):
EAR99
ECCN (EU):
NEC
L7912ACV 批量生产
Budgetary Price (US$)*/Qty:
-
distributors
无法联系到经销商，请联系我们的销售办事处
封装:
TO-220
包装类型:
Tube
RoHS:
-
Country of Origin:
CHINA
ECCN (US):
EAR99
ECCN (EU):
NEC
L7905ACV 批量生产
Budgetary Price (US$)*/Qty:
-
distributors
无法联系到经销商，请联系我们的销售办事处
封装:
TO-220
包装类型:
Tube
RoHS:
-
Country of Origin:
CHINA
ECCN (US):
EAR99
ECCN (EU):
NEC
L7912CV-DG 批量生产
Budgetary Price (US$)*/Qty:
-
distributors
无法联系到经销商，请联系我们的销售办事处
封装:
TO-220
包装类型:
Tube
RoHS:
-
Country of Origin:
CHINA
ECCN (US):
EAR99
ECCN (EU):
NEC
Don't show this again