Overview
The L7905ACD2T-TR 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 local on-card regulation, eliminating distribution problems associated with single-point regulation. It is particularly suited for split power supplies and can deliver up to 1.5 A of output current if adequate heat sinking is provided. Although primarily designed as a fixed voltage regulator, it can also be used with external components to achieve adjustable voltages and currents.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | -5 | V |
| Output Current | Up to 1.5 A | A |
| Package | D²PAK | |
| Operating Temperature Range | 0 to 125 | °C |
| Thermal Resistance Junction-Case | 3 | °C/W |
| Thermal Resistance Junction-Ambient | 62.5 | °C/W |
| Output Tolerance at 25 °C | 2% (AC version) | |
| Line Regulation | 100 mV (VI = -7 to -25 V, TJ = 25°C) | mV |
| Load Regulation | 100 mV (IO = 5 mA to 1.5 A, TJ = 25°C) | mV |
Key Features
- Output current up to 1.5 A
- Fixed output voltage of -5 V
- Thermal overload protection
- Short-circuit protection
- Output SOA (Safe Operating Area) protection
- Output tolerance of 2% at 25 °C for AC version
- Available in D²PAK package
Applications
The L7905ACD2T-TR is suitable for a wide range of applications, including:
- Local on-card regulation to eliminate distribution problems associated with single-point regulation
- Split power supplies, particularly where the same voltage options as the L78 positive standard series are required
- Industrial and commercial power supplies
- Adjustable voltage and current applications with external components
Q & A
- What is the output voltage of the L7905ACD2T-TR?
The output voltage of the L7905ACD2T-TR is -5 V.
- What is the maximum output current of the L7905ACD2T-TR?
The maximum output current is up to 1.5 A.
- What package type is the L7905ACD2T-TR available in?
The L7905ACD2T-TR is available in the D²PAK package.
- What are the key protection features of the L7905ACD2T-TR?
The key protection features include thermal overload protection, short-circuit protection, and output SOA protection.
- What is the operating temperature range of the L7905ACD2T-TR?
The operating temperature range is from 0 to 125 °C.
- Can the L7905ACD2T-TR be used for adjustable voltage applications?
- 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 output tolerance at 25 °C for the AC version?
The output tolerance at 25 °C for the AC version is 2%.
- What are some common applications for the L7905ACD2T-TR?
Common applications include local on-card regulation, split power supplies, and industrial and commercial power supplies.
- Is the L7905ACD2T-TR RoHS compliant?
