Overview
The LD1086V18-DG is a low drop-out (LDO) linear voltage regulator produced by STMicroelectronics. This component is designed to provide a stable output voltage of 1.8V with a maximum output current of 1.5A. It is packaged in a TO-220-3 case, making it suitable for a variety of applications requiring reliable voltage regulation. The LD1086V18-DG is known for its high ripple rejection and tight output voltage tolerance, ensuring high performance and efficiency in different operating conditions.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Mounting Style | Through Hole | Output Voltage | 1.8 V |
| Output Current | 1.5 A | Number of Outputs | 1 Output |
| Polarity | Positive | Quiescent Current | 5 mA |
| Input Voltage, Min | 3.4 V | Input Voltage, Max | 30 V |
| PSRR / Ripple Rejection - Typ | 82 dB | Output Type | Fixed |
| Minimum Operating Temperature | -40°C | Maximum Operating Temperature | +125°C |
| Dropout Voltage | 1.3 V | Dropout Voltage - Max | 1.5 V |
| Line Regulation | 200 uV | Load Regulation | 500 uV |
| Tolerance | 1% | Type | Positive Voltage Regulator |
Key Features
- High Ripple Rejection: The LD1086V18-DG offers a high ripple rejection of 82 dB, ensuring a stable output voltage even in noisy environments.
- Low Dropout Voltage: With a typical dropout voltage of 1.3 V at 1.5 A, this regulator minimizes the voltage difference between the input and output, enhancing efficiency.
- Tight Output Voltage Tolerance: The output voltage tolerance is ±1% at 25°C and ±2% over the full temperature range, providing reliable voltage regulation.
- Internal Power and Thermal Limit: The device includes internal power and thermal limiting, protecting it from overheating and overcurrent conditions.
- Wide Operating Temperature Range: It operates from -40°C to +125°C, making it suitable for a wide range of applications.
- Pin Compatibility: The LD1086V18-DG is pin-to-pin compatible with older 3-terminal adjustable regulators, facilitating easy upgrades and replacements.
Applications
The LD1086V18-DG is versatile and can be used in various applications, including:
- Automotive Systems: Due to its automotive grade certification (AEC-Q100), it is suitable for use in automotive electronics.
- Industrial Control Systems: Its high reliability and stability make it ideal for industrial control and automation systems.
- Consumer Electronics: It can be used in consumer electronics such as audio equipment, medical devices, and other applications requiring stable voltage regulation.
- Power Supplies: The LD1086V18-DG can be used in power supply units to provide a stable output voltage.
Q & A
- What is the output voltage of the LD1086V18-DG?
The output voltage of the LD1086V18-DG is 1.8 V. - What is the maximum output current of the LD1086V18-DG?
The maximum output current is 1.5 A. - What is the package type of the LD1086V18-DG?
The package type is TO-220-3. - What is the ripple rejection of the LD1086V18-DG?
The ripple rejection is 82 dB. - What is the operating temperature range of the LD1086V18-DG?
The operating temperature range is from -40°C to +125°C. - Is the LD1086V18-DG RoHS compliant?
Yes, the LD1086V18-DG is RoHS compliant. - What is the typical dropout voltage of the LD1086V18-DG?
The typical dropout voltage is 1.3 V at 1.5 A. - Does the LD1086V18-DG have internal protection features?
Yes, it includes internal power and thermal limiting. - Is the LD1086V18-DG suitable for automotive applications?
Yes, it is certified to AEC-Q100 standards for automotive use. - What is the quiescent current of the LD1086V18-DG?
The quiescent current is 5 mA.
