Overview
The LD1084V50 is a low-drop voltage regulator produced by STMicroelectronics. It is designed to provide up to 5 A of output current and features a three-terminal adjustable output voltage configuration. This regulator is known for its high performance, including a typical dropout voltage of 1.3 V at 5 A and a maximum dropout voltage of 1.5 V. The LD1084V50 is pin-to-pin compatible with older 3-terminal adjustable regulators but offers improved performance in terms of dropout and output tolerance. It operates over a wide temperature range from -40 °C to 125 °C and is supplied in a TO-220 package, making it suitable for various electronic applications requiring stable and efficient voltage regulation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | Adjustable, but fixed versions like LD1084V50 provide 5 V | V |
| Maximum Output Current | 5 A | A |
| Dropout Voltage | 1.3 V (typical), 1.5 V (maximum) at 5 A | V |
| Output Tolerance | ± 1% at 25 °C, ± 2% in full temperature range | % |
| Line Regulation | 10 mV | mV |
| Load Regulation | 20 mV | mV |
| Reference Voltage | 1.25 V | V |
| Operating Temperature Range | -40 °C to 125 °C | °C |
| Package | TO-220 | |
| Supply Voltage Rejection (PSRR) | 72 dB at 120 Hz | dB |
| Quiescent Current | 10 mA | mA |
Key Features
- Low-drop voltage regulator with a typical dropout voltage of 1.3 V at 5 A and a maximum of 1.5 V.
- Three-terminal adjustable output voltage configuration.
- Guaranteed output current up to 5 A.
- Tight output voltage tolerance within ± 1% at 25 °C and ± 2% in the full temperature range.
- Internal power and thermal limiting.
- Wide operating temperature range from -40 °C to 125 °C.
- Pin-to-pin compatibility with standard adjustable voltage regulators.
- High supply voltage rejection (PSRR) of 72 dB at 120 Hz.
Applications
The LD1084V50 is suitable for a variety of applications requiring stable and efficient voltage regulation, including:
- Powering small-scale electronic devices.
- Industrial control systems.
- Automotive electronics (where specified for such use).
- Consumer electronics.
- Telecommunication equipment.
Q & A
- What is the maximum output current of the LD1084V50?
The maximum output current of the LD1084V50 is 5 A. - What is the typical dropout voltage of the LD1084V50?
The typical dropout voltage is 1.3 V at 5 A. - What is the operating temperature range of the LD1084V50?
The operating temperature range is from -40 °C to 125 °C. - What is the package type of the LD1084V50?
The LD1084V50 is supplied in a TO-220 package. - What is the reference voltage of the LD1084V50?
The reference voltage is 1.25 V. - What is the line regulation of the LD1084V50?
The line regulation is 10 mV. - What is the load regulation of the LD1084V50?
The load regulation is 20 mV. - What is the supply voltage rejection (PSRR) of the LD1084V50?
The PSRR is 72 dB at 120 Hz. - Is the LD1084V50 pin-to-pin compatible with older regulators?
Yes, it is pin-to-pin compatible with standard adjustable voltage regulators. - What is the quiescent current of the LD1084V50?
The quiescent current is 10 mA.
