Overview
The LD1086D2T18TR, produced by STMicroelectronics, is a low drop voltage regulator designed to provide high performance and efficiency. This regulator is capable of delivering up to 1.5 A of output current and is available in various fixed output voltages, including 1.8 V, 3.3 V, 5 V, and others. It is pin-to-pin compatible with older 3-terminal adjustable regulators but offers improved dropout and output tolerance. The LD1086D2T18TR features internal power and thermal limiting, ensuring reliable operation over a wide temperature range of -40 °C to 125 °C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 1.8 V (for LD1086D2T18TR) | V |
| Output Current | Up to 1.5 A | A |
| Typical Dropout Voltage | 1.3 V at 1.5 A | V |
| Output Tolerance | ± 1% at 25 °C, ± 2% in full temperature range | % |
| Operating Temperature Range | -40 °C to 125 °C | °C |
| Package Types | TO-220, D²PAK, D²PAK/A, DPAK, DFN8 (4x4) | |
| Quiescent Current | 5 to 10 mA | mA |
| Short-Circuit Current | 1.5 A (VI - VO = 5 V) | A |
| Thermal Resistance Junction-Case | 5 °C/W (TO-220), 3 °C/W (D²PAK) | °C/W |
Key Features
- Low dropout voltage: Typical dropout of 1.3 V at 1.5 A.
- High output current: Up to 1.5 A.
- Tight output voltage tolerance: ± 1% at 25 °C and ± 2% in full temperature range.
- Internal power and thermal limiting for enhanced reliability.
- Wide operating temperature range: -40 °C to 125 °C.
- Pin-to-pin compatibility with older 3-terminal adjustable regulators.
- Efficient operation: Quiescent current flows into the load, increasing efficiency.
- Stability with a minimum 10 µF capacitor.
Applications
The LD1086D2T18TR is suitable for a variety of applications requiring stable and efficient voltage regulation, including:
- Power supplies for electronic devices.
- Industrial control systems.
- Automotive systems.
- Consumer electronics.
- Telecommunication equipment.
Q & A
- What is the maximum output current of the LD1086D2T18TR?
The LD1086D2T18TR can provide up to 1.5 A of output current.
- What is the typical dropout voltage of the LD1086D2T18TR?
The typical dropout voltage is 1.3 V at 1.5 A.
- What are the available output voltages for the LD1086 series?
The LD1086 series offers fixed output voltages of 1.8 V, 3.3 V, 5 V, and others.
- What is the operating temperature range of the LD1086D2T18TR?
The operating temperature range is -40 °C to 125 °C.
- What packages are available for the LD1086D2T18TR?
The device is available in TO-220, D²PAK, D²PAK/A, DPAK, and DFN8 (4x4) packages.
- Is the LD1086D2T18TR pin-to-pin compatible with older regulators?
- What is the quiescent current of the LD1086D2T18TR?
The quiescent current is between 5 to 10 mA.
- What is the minimum capacitor required for stability?
A minimum 10 µF capacitor is required for stability.
- Does the LD1086D2T18TR have internal thermal protection?
- What are some typical applications for the LD1086D2T18TR?
It is used in power supplies, industrial control systems, automotive systems, consumer electronics, and telecommunication equipment.
