Overview
The LD1086V33-DG, produced by STMicroelectronics, is a low drop voltage regulator designed to provide up to 1.5 A of output current. This regulator is pin-to-pin compatible with older 3-terminal adjustable regulators but offers improved performance in terms of dropout voltage and output tolerance. It features a typical dropout voltage of 1.3 V at 1.5 A and is available in various packages including TO-220, D²PAK, D²PAK/A, DPAK, and DFN8 (4x4). The LD1086V33-DG is particularly efficient as its quiescent current flows into the load, enhancing overall efficiency compared to traditional PNP regulators.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 3.3 V | V |
| Output Current | Up to 1.5 A | A |
| Dropout Voltage | Typical 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 Options | TO-220, D²PAK, D²PAK/A, DPAK, DFN8 (4x4) | - |
| Quiescent Current | 5 to 10 mA | mA |
| Internal Power and Thermal Limit | Internally Limited | - |
Key Features
- Typical dropout voltage of 1.3 V at 1.5 A
- 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 protection
- Wide operating temperature range: -40 °C to 125 °C
- Available in TO-220, D²PAK, D²PAK/A, DPAK, and DFN8 (4x4) packages
- Pinout compatibility with standard adjustable voltage regulators
Applications
The LD1086V33-DG is suitable for a variety of applications requiring stable and efficient voltage regulation. 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 LD1086V33-DG?
The LD1086V33-DG can provide up to 1.5 A of output current.
- What is the typical dropout voltage of the LD1086V33-DG at 1.5 A?
The typical dropout voltage is 1.3 V at 1.5 A.
- What are the available output voltage options for the LD1086 series?
The LD1086 series offers fixed output voltages of 1.8 V, 3.3 V, and 5 V, as well as adjustable output voltage options.
- What is the operating temperature range of the LD1086V33-DG?
The operating temperature range is -40 °C to 125 °C.
- What packages are available for the LD1086V33-DG?
The device is available in TO-220, D²PAK, D²PAK/A, DPAK, and DFN8 (4x4) packages.
- Is the LD1086V33-DG compatible with older 3-terminal adjustable regulators?
- What is the quiescent current range of the LD1086V33-DG?
The quiescent current ranges from 5 to 10 mA.
- Does the LD1086V33-DG have internal protection features?
- How tight is the output voltage tolerance of the LD1086V33-DG?
The output voltage tolerance is ± 1% at 25 °C and ± 2% in the full temperature range.
- What is the minimum capacitor required for stability?
A minimum of 10 μF capacitor is required for stability.
