Overview
The L7908CV-DG is a linear voltage regulator IC produced by STMicroelectronics. This component is part of the L79 series, which is designed to provide stable negative output voltages. The L7908CV-DG specifically offers a fixed output voltage of -8V and is capable of delivering up to 1.5A of output current. It is particularly suited for applications requiring negative voltage regulation, such as split power supplies.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | -8 | V |
| Output Current | Up to 1.5 A | A |
| Input Voltage Range | -11.5 to -23 V | V |
| Line Regulation | 160 mV (VI = -10.5 to -25 V) | mV |
| Load Regulation | 160 mV (IO = 5 mA to 1.5 A) | mV |
| Quiescent Current | 3 mA (Typical) | mA |
| Dropout Voltage | 1.4 V (Typical) | V |
| Thermal Resistance Junction-Case | 3 °C/W (TO-220) | °C/W |
| Thermal Resistance Junction-Ambient | 50 °C/W (TO-220) | °C/W |
| Operating Junction Temperature Range | 0 to 150 °C | °C |
| Storage Temperature Range | -65 to 150 °C | °C |
| Package Type | TO-220 |
Key Features
- Fixed Output Voltage: Provides a stable -8V output voltage.
- High Output Current: Capable of delivering up to 1.5A of output current.
- Low Dropout Voltage: Typical dropout voltage of 1.4V.
- Good Line and Load Regulation: Ensures stable output voltage across a range of input voltages and output currents.
- Thermal Stability: Suitable for high-temperature applications with an operating junction temperature range of 0 to 150 °C.
- Compact Packaging: Available in the TO-220 package, which is suitable for a variety of applications.
Applications
- Split Power Supplies: Ideal for applications requiring both positive and negative voltage supplies.
- Audio Equipment: Used in audio amplifiers and other audio equipment requiring stable negative voltage supplies.
- Industrial Control Systems: Suitable for use in industrial control systems that require reliable voltage regulation.
- Medical Devices: Can be used in medical devices that require stable and regulated negative voltage supplies.
Q & A
- What is the output voltage of the L7908CV-DG?
The output voltage of the L7908CV-DG is -8V.
- What is the maximum output current of the L7908CV-DG?
The maximum output current of the L7908CV-DG is 1.5A.
- What is the typical dropout voltage of the L7908CV-DG?
The typical dropout voltage of the L7908CV-DG is 1.4V.
- What is the operating junction temperature range of the L7908CV-DG?
The operating junction temperature range of the L7908CV-DG is 0 to 150 °C.
- What package type is the L7908CV-DG available in?
The L7908CV-DG is available in the TO-220 package.
- Can the L7908CV-DG be used in split power supplies?
- What is the line regulation of the L7908CV-DG?
The line regulation of the L7908CV-DG is 160 mV (VI = -10.5 to -25 V).
- What is the load regulation of the L7908CV-DG?
The load regulation of the L7908CV-DG is 160 mV (IO = 5 mA to 1.5 A).
- What is the quiescent current of the L7908CV-DG?
The quiescent current of the L7908CV-DG is typically 3 mA.
- Can the L7908CV-DG be used in high-temperature applications?
