Overview
The L7915CD2T is a three-terminal negative voltage regulator from STMicroelectronics, part of the L79 series. This regulator is available in the D²PAK package and is designed to provide a fixed output voltage of -15V. It is suitable for a wide range of applications requiring local on-card regulation, particularly in systems that need split power supplies. The L7915CD2T offers high current capability, thermal overload protection, short-circuit protection, and output SOA (Safe Operating Area) protection, making it a reliable choice for various electronic systems.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Output Voltage (TJ = 25°C) | -14.7 | -15 | -15.3 | V |
| Output Current | -5 mA | -1 A | - | A |
| Dropout Voltage (IO = 1 A, TJ = 25°C) | - | 1.1 | - | V |
| Short Circuit Current | - | 0.7 | - | A |
| Quiescent Current (TJ = 25°C) | - | 3 | - | mA |
| Line Regulation (VI = -17.5 to -30 V, TJ = 25°C) | - | 300 | - | mV |
| Load Regulation (IO = 5 mA to 1.5 A, TJ = 25°C) | - | 300 | - | mV |
| Thermal Resistance Junction-Case (D²PAK) | - | 3 | - | °C/W |
| Thermal Resistance Junction-Ambient (D²PAK) | - | 62.5 | - | °C/W |
| Operating Junction Temperature Range | 0 | - | 125 | °C |
| Storage Temperature Range | -65 | - | 150 | °C |
Key Features
- Fixed output voltage of -15V
- Output current up to 1.5 A
- Thermal overload protection
- Short-circuit protection
- Output SOA (Safe Operating Area) protection
- Output voltage tolerance of 4% at 25°C (C version)
- Low dropout voltage
- High current capability with adequate heat sinking
- Available in D²PAK package
- ECOPACK® compliant for environmental sustainability
Applications
- Local on-card regulation in various electronic systems
- Split power supplies (e.g., ±15V)
- High current negative voltage regulation
- Adjustable voltage and current regulation with external components
- Industrial and consumer electronics requiring stable negative voltage supplies
Q & A
- What is the output voltage of the L7915CD2T regulator?
The output voltage of the L7915CD2T regulator is -15V.
- What is the maximum output current of the L7915CD2T?
The maximum output current of the L7915CD2T is up to 1.5 A.
- What type of protection does the L7915CD2T offer?
The L7915CD2T offers thermal overload protection, short-circuit protection, and output SOA protection.
- In what package is the L7915CD2T available?
The L7915CD2T is available in the D²PAK package.
- What is the thermal resistance junction-case for the D²PAK package?
The thermal resistance junction-case for the D²PAK package is 3°C/W.
- What is the operating junction temperature range for the L7915CD2T?
The operating junction temperature range for the L7915CD2T is 0 to 125°C.
- Can the L7915CD2T be used for adjustable voltage regulation?
Yes, the L7915CD2T can be used with external components to obtain adjustable voltages and currents.
- What is the quiescent current of the L7915CD2T at 25°C?
The quiescent current of the L7915CD2T at 25°C is 3 mA.
- What is the dropout voltage of the L7915CD2T at 1 A output current?
The dropout voltage of the L7915CD2T at 1 A output current is 1.1 V.
- Is the L7915CD2T environmentally compliant?
Yes, the L7915CD2T is ECOPACK® compliant, meeting environmental sustainability standards.
