Overview
The L7915CD2T-TR is a linear voltage regulator IC produced by STMicroelectronics. This component is part of the L79 series, known for its three-terminal negative voltage regulators. It is available in the D²PAK (TO-263-3) package and is designed to provide a fixed negative output voltage of -15V with a maximum output current of 1.5A. This regulator is suitable for applications requiring stable and reliable negative voltage regulation.
The L7915CD2T-TR is RoHS compliant and features over-temperature and short-circuit protection, enhancing its reliability and safety in various electronic systems. It operates within a temperature range of 0°C to 125°C, making it versatile for different environmental conditions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Output (Fixed) | -15V | V |
| Voltage - Input (Max) | -35V | V |
| Current - Output | 1.5A | A |
| Voltage Dropout (Max) | 1.1V @ 1A (Typ) | V |
| Current - Quiescent (Iq) | 3mA | mA |
| Operating Temperature | 0°C ~ 125°C | °C |
| Package / Case | TO-263-3, D²Pak (2 Leads + Tab) | |
| Protection Features | Over Temperature, Short Circuit | |
| PSRR | 60dB (120Hz) | dB |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Key Features
- Fixed Negative Output Voltage: Provides a stable -15V output voltage.
- High Output Current: Capable of delivering up to 1.5A of output current.
- Low Dropout Voltage: Maximum dropout voltage of 1.1V at 1A.
- Quiescent Current: Low quiescent current of 3mA.
- Protection Features: Includes over-temperature and short-circuit protection.
- RoHS Compliance: Lead-free and RoHS compliant.
- Wide Operating Temperature Range: Operates from 0°C to 125°C.
- High PSRR: Power Supply Rejection Ratio of 60dB at 120Hz.
Applications
The L7915CD2T-TR is suitable for a variety of applications that require stable negative voltage regulation. These include:
- Power Supplies: Used in power supply units to regulate negative voltages.
- Industrial Control Systems: Employed in industrial control systems where stable negative voltages are necessary.
- Telecommunication Equipment: Utilized in telecommunication devices that require reliable negative voltage regulation.
- Automotive Systems: Although not specifically automotive-qualified, it can be used in certain automotive applications where the specifications match the requirements.
- Consumer Electronics: Found in various consumer electronic devices that need stable negative voltage supplies.
Q & A
- Q: What is the output voltage of the L7915CD2T-TR?
A: The output voltage of the L7915CD2T-TR is -15V.
- Q: What is the maximum output current of the L7915CD2T-TR?
A: The maximum output current is 1.5A.
- Q: What is the maximum input voltage for the L7915CD2T-TR?
A: The maximum input voltage is -35V.
- Q: What are the protection features of the L7915CD2T-TR?
A: The L7915CD2T-TR includes over-temperature and short-circuit protection.
- Q: Is the L7915CD2T-TR RoHS compliant?
A: Yes, the L7915CD2T-TR is RoHS compliant and lead-free.
- Q: What is the operating temperature range of the L7915CD2T-TR?
A: The operating temperature range is from 0°C to 125°C.
- Q: What is the quiescent current of the L7915CD2T-TR?
A: The quiescent current is 3mA.
- Q: What is the package type of the L7915CD2T-TR?
A: The package type is TO-263-3, D²Pak (2 Leads + Tab).
- Q: What is the PSRR of the L7915CD2T-TR?
A: The Power Supply Rejection Ratio (PSRR) is 60dB at 120Hz.
- Q: Where can I find detailed information about the L7915CD2T-TR?
A: Detailed information can be found in the datasheet available on the STMicroelectronics website or through authorized distributors.
