Overview
The LD1086D2T15R, produced by STMicroelectronics, is a low drop voltage regulator designed to provide up to 1.5 A of output current. This regulator is available in various packages, including D²PAK, and is pin-to-pin compatible with older 3-terminal adjustable regulators but offers improved performance in terms of dropout and output tolerance. The LD1086 is known for its high efficiency, as the quiescent current flows into the load, and it requires only a minimum 10 µF capacitor for stability. The device operates over a wide temperature range of -40 °C to 125 °C, making it suitable for a variety of applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Current | Up to 1.5 A | A |
| Typical Dropout Voltage | 1.3 V at 1.5 A | V |
| Output Voltage Tolerance | ± 1% at 25 °C, ± 2% in full temperature range | % |
| Available Output Voltages | 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) | - |
| Maximum Input Voltage | 30 V | V |
| Thermal Resistance Junction-Case | 3 °C/W (D²PAK), 5 °C/W (TO-220) | °C/W |
Key Features
- Low dropout voltage: Guaranteed maximum of 1.2 V at 1.5 A output current.
- Adjustable or fixed output voltage: Available in 1.8 V, 3.3 V, and 5 V configurations.
- High output current: Up to 1.5 A guaranteed.
- Tight output voltage tolerance: ± 1% at 25 °C and ± 2% over the full temperature range.
- Internal power and thermal limit: Built-in protection against overheating and overcurrent.
- Wide operating temperature range: -40 °C to 125 °C.
- Pinout compatibility: Compatible with standard adjustable voltage regulators.
- Efficient quiescent current: Flows into the load, increasing overall efficiency.
Applications
The LD1086D2T15R 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 LD1086D2T15R?
The LD1086D2T15R can provide up to 1.5 A of output current.
- What are the available output voltage options for the LD1086D2T15R?
The LD1086D2T15R is available in fixed output voltages of 1.8 V, 3.3 V, and 5 V, and it can also be configured as an adjustable voltage regulator.
- What is the typical dropout voltage of the LD1086D2T15R?
The typical dropout voltage is 1.3 V at 1.5 A output current.
- What is the operating temperature range of the LD1086D2T15R?
The operating temperature range is -40 °C to 125 °C.
- What packages is the LD1086D2T15R available in?
The LD1086D2T15R is available in TO-220, D²PAK, D²PAK/A, DPAK, and DFN8 (4x4) packages.
- Does the LD1086D2T15R have built-in thermal protection?
Yes, the LD1086D2T15R has internal power and thermal limits to protect against overheating and overcurrent.
- How much quiescent current does the LD1086D2T15R consume?
The quiescent current of the LD1086D2T15R flows into the load, increasing efficiency, rather than being wasted.
- What is the minimum capacitor required for stability?
A minimum 10 µF capacitor is required for stability.
- Is the LD1086D2T15R compatible with older 3-terminal adjustable regulators?
Yes, the LD1086D2T15R is pin-to-pin compatible with older 3-terminal adjustable regulators but offers better performance.
- What is the maximum input voltage for the LD1086D2T15R?
The maximum input voltage is 30 V.
