Overview
The LD1086DT15R, produced by STMicroelectronics, is a low drop voltage regulator designed to provide up to 1.5 A of output current. This regulator is characterized by its high efficiency and low dropout voltage, making it suitable for a wide range of applications. The LD1086DT15R is pin-to-pin 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 TO-220, D²PAK, D²PAK/A, DPAK, and DFN8 (4x4 mm), ensuring flexibility in design and implementation.
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 | % |
| Output Voltage Options | Adjustable or fixed: 1.8 V, 3.3 V, 5 V | V |
| Operating Temperature Range | -40 °C to 125 °C | °C |
| Package Options | TO-220, D²PAK, D²PAK/A, DPAK, DFN8 (4x4 mm) | - |
| Quiescent Current | 5 - 10 mA | mA |
| Thermal Resistance Junction-Case | 5 - 8 °C/W (depending on package) | °C/W |
Key Features
- Typical dropout voltage of 1.3 V at 1.5 A, with a maximum of 1.2 V at full load.
- Three-terminal adjustable or fixed output voltage options: 1.8 V, 3.3 V, 5 V.
- Output current guaranteed up to 1.5 A.
- Tight output voltage tolerance: ± 1% at 25 °C and ± 2% in full temperature range.
- Internal power and thermal limit for enhanced reliability.
- Wide operating temperature range: -40 °C to 125 °C.
- Pinout compatibility with standard adjustable voltage regulators.
- Automotive grade available for adjustable output voltages in TO-220 and DPAK packages.
- Only a 10 µF minimum capacitor required for stability.
Applications
The LD1086DT15R is suitable for various applications requiring a stable and efficient voltage supply. These include:
- Automotive systems, particularly where the automotive grade is specified.
- Industrial control systems and power supplies.
- Consumer electronics requiring high current and low dropout voltage.
- Telecommunication equipment and networking devices.
- Medical devices and equipment needing reliable voltage regulation.
Q & A
- What is the maximum output current of the LD1086DT15R?
The maximum output current is 1.5 A.
- What are the available output voltage options for the LD1086DT15R?
The output voltage options are adjustable or fixed: 1.8 V, 3.3 V, 5 V.
- What is the typical dropout voltage of the LD1086DT15R at full load?
The typical dropout voltage is 1.3 V at 1.5 A.
- What is the operating temperature range of the LD1086DT15R?
The operating temperature range is -40 °C to 125 °C.
- What packages are available for the LD1086DT15R?
The available packages are TO-220, D²PAK, D²PAK/A, DPAK, and DFN8 (4x4 mm).
- Is the LD1086DT15R compatible with older 3-terminal adjustable regulators?
- What is the quiescent current of the LD1086DT15R?
The quiescent current is between 5 - 10 mA.
- Does the LD1086DT15R have internal thermal protection?
- What is the minimum capacitor required for stability?
A minimum of 10 µF capacitor is required for stability.
- Is the LD1086DT15R available in an automotive grade?
