Overview
The STMicroelectronics L7809CV is a linear voltage regulator IC designed to provide a stable and reliable 9V output voltage. This three-terminal positive voltage regulator is part of the L78 series, which is widely used in various electronic applications for local on-card regulation. The L7809CV can deliver up to 1.5A of output current and features internal thermal shutdown and current limiting for safe operation. It is packaged in a TO-220-3 (TO-220AB) through-hole package, making it suitable for a range of power management needs.
Key Specifications
| Attribute | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Part Number | L7809CV |
| Regulator Type | Linear Voltage |
| Maximum Output Current | 1.5 A |
| Output Voltage | 9 V |
| Number of Outputs | Single |
| Line Regulation | 180 mV |
| Load Regulation | 180 mV |
| Accuracy | ±4% |
| Mounting Type | Through Hole |
| Polarity | Positive |
| Package Type | TO-220-3 (TO-220AB) |
| Quiescent Current | 8 mA |
| Pin Count | 3 |
| Output Type | Fixed |
| Dimensions | 10.4 x 4.6 x 15.75 mm |
| Height | 15.75 mm |
| Maximum Operating Temperature | +125 °C |
| Minimum Operating Temperature | 0 °C |
| Maximum Input Voltage | 35 V |
| Dropout Voltage-Max | 2 V |
| Output Noise | 70 µV |
| Current - Limit | 2.2 A |
Key Features
- Output current up to 1.5 A
- Fixed output voltage of 9 V
- Internal thermal shutdown and current limiting for safe operation
- Line and load regulation of 180 mV
- Quiescent current of 8 mA
- Operating temperature range from 0 °C to +125 °C
- TO-220-3 (TO-220AB) through-hole package
- RoHS compliant
Applications
The STMicroelectronics L7809CV is versatile and can be used in a wide range of applications within the electronics industry. Some common uses include:
- Power management systems requiring local on-card regulation
- Industrial control systems
- Consumer electronics
- Automotive systems
- Medical devices
Q & A
- What is the maximum output current of the L7809CV?
The maximum output current of the L7809CV is 1.5 A.
- What is the fixed output voltage of the L7809CV?
The fixed output voltage of the L7809CV is 9 V.
- What is the package type of the L7809CV?
The L7809CV is packaged in a TO-220-3 (TO-220AB) through-hole package.
- What are the operating temperature limits of the L7809CV?
The operating temperature range of the L7809CV is from 0 °C to +125 °C.
- Does the L7809CV have internal protection features?
Yes, the L7809CV features internal thermal shutdown and current limiting for safe operation.
- Is the L7809CV RoHS compliant?
Yes, the L7809CV is RoHS compliant.
- What is the maximum input voltage for the L7809CV?
The maximum input voltage for the L7809CV is 35 V.
- What is the quiescent current of the L7809CV?
The quiescent current of the L7809CV is 8 mA.
- What are the line and load regulation values for the L7809CV?
The line and load regulation values for the L7809CV are both 180 mV.
- What is the dropout voltage of the L7809CV?
The dropout voltage of the L7809CV is 2 V.
