Overview
The LD1086D2T12, produced by STMicroelectronics, is a low drop voltage regulator designed to provide up to 1.5 A of output current. This regulator is part of the LD1086 series, which offers both adjustable and fixed output voltage options. The LD1086D2T12 specifically provides a fixed output voltage of 1.2 V. It is known for its high efficiency, low dropout voltage, and tight output voltage tolerance. The device is compatible with older 3-terminal adjustable regulators but offers improved performance in terms of dropout and output tolerance. It is available in various packages, including D²PAK, D²PAK/A, DPAK, TO-220, and DFN8 (4x4), making it versatile for different design needs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Current | Up to 1.5 A | A |
| Dropout Voltage | Typical 1.3 V at 1.5 A, Maximum 1.2 V | V |
| Output Voltage Tolerance | ± 1% at 25 °C, ± 2% in full temperature range | % |
| Operating Temperature Range | -40 °C to 125 °C | °C |
| Input Voltage | Up to 30 V | V |
| Package Options | TO-220, D²PAK, D²PAK/A, DPAK, DFN8 (4x4) | |
| Thermal Resistance (Junction to Case) | Varies by package (e.g., 5 °C/W for TO-220) | °C/W |
| Minimum Capacitor for Stability | 10 µF | µF |
Key Features
- Low dropout voltage: Typical 1.3 V at 1.5 A, Maximum 1.2 V
- Three-terminal adjustable or fixed output voltage: 1.8 V, 3.3 V, 5 V (fixed 1.2 V for LD1086D2T12)
- High output current capability: Up to 1.5 A
- Tight output voltage tolerance: ± 1% at 25 °C and ± 2% in full temperature range
- Internal power and thermal limit
- Wide operating temperature range: -40 °C to 125 °C
- Pinout compatibility with standard adjustable voltage regulators
- Efficient design: Quiescent current flows into the load, increasing efficiency
Applications
The LD1086D2T12 is suitable for a variety of applications requiring a stable and efficient voltage supply. These include:
- Power supplies for electronic devices
- Industrial control systems
- Automotive electronics
- Consumer electronics
- Telecommunication equipment
Q & A
- What is the maximum output current of the LD1086D2T12?
The maximum output current is up to 1.5 A. - What is the typical dropout voltage of the LD1086D2T12?
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, and 5 V, with the LD1086D2T12 specifically providing 1.2 V. - What is the operating temperature range of the LD1086D2T12?
The operating temperature range is -40 °C to 125 °C. - What packages are available for the LD1086D2T12?
The device is available in TO-220, D²PAK, D²PAK/A, DPAK, and DFN8 (4x4) packages. - How does the LD1086D2T12 improve efficiency compared to older regulators?
The quiescent current flows into the load, increasing efficiency. - What is the minimum capacitor required for stability?
A minimum of 10 µF capacitor is required for stability. - Is the LD1086D2T12 compatible with older 3-terminal adjustable regulators?
Yes, it is pin-to-pin compatible with older 3-terminal adjustable regulators. - What are the thermal protection features of the LD1086D2T12?
The device includes internal power and thermal limits for protection. - What is the output voltage tolerance of the LD1086D2T12?
The output voltage tolerance is ± 1% at 25 °C and ± 2% in the full temperature range.
