Overview
The L7809ABV is a three-terminal positive voltage regulator from STMicroelectronics, part of the L78 series. This component is designed to provide a stable 9V output voltage with a maximum current of 1.5A. It is housed in a TO-220AB package, making it suitable for various applications requiring reliable voltage regulation. The L7809ABV is known for its high performance, including low dropout voltage, high power supply rejection ratio (PSRR), and built-in protection features such as overtemperature and short-circuit protection.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | STMicroelectronics | |
| Part Number | L7809ABV | |
| Package | TO-220AB | |
| Output Voltage | 9V | V |
| Output Current | 1.5A | A |
| Input Voltage (Max) | 35V | V |
| Dropout Voltage (Typ) | 2V @ 1A | V |
| PSRR (120Hz) | 61dB | dB |
| Operating Temperature Range | -40°C to 125°C | °C |
| Quiescent Current | 6mA | mA |
| Protection Features | Overtemperature, Short Circuit | |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | |
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant |
Key Features
- High Current Capability: The L7809ABV can supply up to 1.5A of output current, making it suitable for applications requiring substantial power.
- Low Dropout Voltage: With a typical dropout voltage of 2V at 1A, this regulator ensures efficient voltage regulation even at low input voltages.
- High PSRR: The component has a high power supply rejection ratio (PSRR) of 61dB at 120Hz, ensuring stable output voltage despite input voltage variations.
- Built-in Protection: It includes overtemperature and short-circuit protection, enhancing the reliability and lifespan of the device.
- Wide Operating Temperature Range: The regulator operates within a temperature range of -40°C to 125°C, making it versatile for various environmental conditions.
- Lead Free and RoHS Compliant: The L7809ABV is lead-free and RoHS compliant, aligning with modern environmental and safety standards.
Applications
- Industrial Power Supplies: Suitable for use in industrial power supplies where stable and reliable voltage regulation is crucial.
- Automotive Systems: Can be used in automotive systems due to its wide operating temperature range and robust protection features.
- Consumer Electronics: Applicable in consumer electronics such as audio equipment, medical devices, and other applications requiring stable DC voltage.
- Embedded Systems: Ideal for embedded systems where compact, reliable voltage regulation is necessary.
Q & A
- What is the output voltage of the L7809ABV?
The output voltage of the L7809ABV is 9V.
- What is the maximum output current of the L7809ABV?
The maximum output current of the L7809ABV is 1.5A.
- What is the maximum input voltage for the L7809ABV?
The maximum input voltage for the L7809ABV is 35V.
- What is the typical dropout voltage of the L7809ABV?
The typical dropout voltage of the L7809ABV is 2V at 1A.
- What is the PSRR of the L7809ABV at 120Hz?
The PSRR of the L7809ABV at 120Hz is 61dB.
- What are the built-in protection features of the L7809ABV?
The L7809ABV includes overtemperature and short-circuit protection.
- What is the operating temperature range of the L7809ABV?
The operating temperature range of the L7809ABV is -40°C to 125°C.
- Is the L7809ABV lead-free and RoHS compliant?
Yes, the L7809ABV is lead-free and RoHS compliant.
- What is the quiescent current of the L7809ABV?
The quiescent current of the L7809ABV is 6mA.
- What is the moisture sensitivity level (MSL) of the L7809ABV?
The MSL of the L7809ABV is 1 (Unlimited).
