Overview
The LD1086DT33TR is a low drop positive voltage regulator produced by STMicroelectronics. This component is capable of providing up to 1.5 A of output current and is known for its high efficiency and stability. It is available in various package types, including TO-220, D²PAK, D²PAK/A, DPAK, and DFN8 (4x4), making it versatile for different application needs. The LD1086DT33TR is pin-to-pin compatible with older 3-terminal adjustable regulators but offers improved performance in terms of dropout voltage and output tolerance.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 3.3 V (fixed) | V |
| Output Current | Up to 1.5 A | A |
| Dropout Voltage | 1.3 V at 1.5 A | V |
| Output Tolerance | ± 1% at 25 °C, ± 2% in full temperature range | % |
| Quiescent Current | 5 - 10 mA | mA |
| Operating Temperature Range | -40 °C to 125 °C | °C |
| Package Types | TO-220, D²PAK, D²PAK/A, DPAK, DFN8 (4x4) | |
| DC Input Voltage | Up to 30 V | V |
| Load Regulation | 0.4 - 8 mV (IO = 0 to 1.5 A, TJ = 25 °C) | mV |
| Supply Voltage Rejection | 60 - 82 dB (f = 120 Hz, CO = 25 µF, IO = 1.5 A) | dB |
Key Features
- Low Dropout Voltage: The LD1086DT33TR has a typical dropout voltage of 1.3 V at 1.5 A, ensuring efficient voltage regulation even at low input voltages.
- High Output Current: Capable of providing up to 1.5 A of output current, making it suitable for a wide range of applications.
- Tight Output Tolerance: The output voltage tolerance is ± 1% at 25 °C and ± 2% over the full temperature range, ensuring stable output voltage.
- Internal Power and Thermal Limit: The device includes internal power and thermal limiting, enhancing reliability and preventing overheating.
- Wide Operating Temperature Range: Operates from -40 °C to 125 °C, making it suitable for various environmental conditions.
- Pin-to-Pin Compatibility: Compatible with older 3-terminal adjustable regulators, but with improved performance characteristics.
- Efficient Quiescent Current: The quiescent current flows into the load, increasing the overall efficiency of the regulator.
Applications
- Power Supplies: Ideal for use in power supplies requiring high current and low dropout voltage.
- Industrial Control Systems: Suitable for industrial control systems that need stable and efficient voltage regulation.
- Automotive Systems: Can be used in automotive systems due to its wide operating temperature range and robust performance.
- Consumer Electronics: Applicable in consumer electronics where high current and low noise are required.
- Medical Devices: Used in medical devices that demand precise voltage regulation and high reliability.
Q & A
- What is the maximum output current of the LD1086DT33TR?
The maximum output current of the LD1086DT33TR is up to 1.5 A.
- What is the typical dropout voltage of the LD1086DT33TR?
The typical dropout voltage is 1.3 V at 1.5 A.
- What are the available package types for the LD1086DT33TR?
The device is available in TO-220, D²PAK, D²PAK/A, DPAK, and DFN8 (4x4) packages.
- What is the operating temperature range of the LD1086DT33TR?
The operating temperature range is from -40 °C to 125 °C.
- Is the LD1086DT33TR pin-to-pin compatible with older 3-terminal adjustable regulators?
Yes, it is pin-to-pin compatible but offers improved performance characteristics.
- What is the output voltage tolerance of the LD1086DT33TR?
The output voltage tolerance is ± 1% at 25 °C and ± 2% over the full temperature range.
- Does the LD1086DT33TR have internal power and thermal limiting?
Yes, it includes internal power and thermal limiting.
- What is the quiescent current of the LD1086DT33TR?
The quiescent current is between 5 - 10 mA.
- What is the recommended minimum capacitor value for stability?
A minimum capacitor value of 10 µF is recommended for stability.
- What are some typical applications of the LD1086DT33TR?
Typical applications include power supplies, industrial control systems, automotive systems, consumer electronics, and medical devices.
