Overview
The LD1086D2M18TR is a low drop voltage regulator produced by STMicroelectronics. This component is part of the LD1086 series, which is capable of providing up to 1.5 A of output current. It is designed to offer high efficiency and tight output voltage tolerance, making it suitable for a wide range of applications. The LD1086D2M18TR is available in various packages, including D²PAK, and is pin-to-pin compatible with older 3-terminal adjustable regulators, but with improved performance in terms of dropout voltage and output tolerance.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Output Voltage (VO) | 1.782 | 1.8 | 1.818 | V |
| Output Current (IO) | - | - | 1.5 A | A |
| Dropout Voltage (Vd) | 1.3 | 1.3 | 1.5 | V |
| Line Regulation (∆VO) | 0.2 | 4 | 4 mV | mV |
| Load Regulation (∆VO) | 0.5 | 8 | 8 mV | mV |
| Quiescent Current (Iq) | 5 | 10 | 10 mA | mA |
| Short-Circuit Current (Isc) | 1.5 | 2 | 2 A | A |
| Operating Temperature Range | -40 | - | 125 | °C |
| Storage Temperature Range | -55 | - | 150 | °C |
| Thermal Resistance Junction-Case (RthJC) | 5 | - | - | °C/W |
| Thermal Resistance Junction-Ambient (RthJA) | 50 | - | - | °C/W |
Key Features
- Low Dropout Voltage: Typical dropout voltage of 1.3 V at 1.5 A, decreasing at lower loads.
- Adjustable and Fixed Output Voltage: Available in fixed output voltages of 1.8 V, 2.5 V, 3.3 V, 5 V, and 12 V, and adjustable output voltage.
- High Output Current: Guaranteed up to 1.5 A.
- Tight Output Tolerance: ± 1% at 25 °C and ± 2% over the full temperature range.
- Internal Power and Thermal Limit: Built-in protection against overcurrent and overheating.
- Wide Operating Temperature Range: From -40 °C to 125 °C.
- Package Variability: Available in TO-220, D²PAK, D²PAK/A, DPAK, and DFN8 (4x4 mm) packages.
- Pinout Compatibility: Compatible with standard adjustable voltage regulators.
- Automotive Grade: Qualified according to the AEC-Q100 specification for automotive applications.
Applications
- Automotive Systems: Suitable for use in automotive applications due to its AEC-Q100 qualification and wide operating temperature range.
- Industrial Power Supplies: Ideal for industrial power supplies requiring high current and low dropout voltage.
- Consumer Electronics: Used in various consumer electronics where efficient voltage regulation is necessary.
- Telecommunications: Applicable in telecommunications equipment for reliable power supply.
- Medical Devices: Can be used in medical devices that require precise voltage regulation and high reliability.
Q & A
- What is the maximum output current of the LD1086D2M18TR?
The maximum output current is guaranteed up to 1.5 A.
- What are the available fixed output voltages for the LD1086 series?
The fixed output voltages available are 1.8 V, 2.5 V, 3.3 V, 5 V, and 12 V.
- What is the typical dropout voltage of the LD1086D2M18TR at 1.5 A?
The typical dropout voltage is 1.3 V at 1.5 A.
- What is the output voltage tolerance of the LD1086D2M18TR at 25 °C?
The output voltage tolerance is ± 1% at 25 °C.
- What is the operating temperature range of the LD1086D2M18TR?
The operating temperature range is from -40 °C to 125 °C.
- What packages are available for the LD1086 series?
The LD1086 is available in TO-220, D²PAK, D²PAK/A, DPAK, and DFN8 (4x4 mm) packages.
- Is the LD1086D2M18TR compatible with standard adjustable voltage regulators?
Yes, it is pin-to-pin compatible with standard adjustable voltage regulators.
- What is the minimum capacitor required for stability?
A minimum of 10 µF capacitor is required for stability.
- Is the LD1086D2M18TR qualified for automotive applications?
Yes, it is qualified according to the AEC-Q100 specification for automotive applications.
- What is the thermal resistance junction-case (RthJC) for the D²PAK package?
The thermal resistance junction-case (RthJC) for the D²PAK package is 3 °C/W.
