Overview
The LF50CDT-TR is a very low-dropout voltage regulator produced by STMicroelectronics. This linear voltage regulator is designed to provide a stable 5V output with a maximum current of 500 mA. It is packaged in a DPAK (TO-252) package, making it suitable for a variety of applications requiring compact and efficient power management. The regulator features a very low dropout voltage, low quiescent current, and high supply voltage rejection, ensuring reliable operation across a wide range of input voltages.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage (nom) | 5 | V |
| Output Tolerance (typ) | 1% | |
| Output Current (nom) | 0.5 | A |
| Operating Input Voltage | 4.6 to 16 | V |
| Dropout Voltage (IO = 500 mA) | 0.4 to 0.7 | V |
| Quiescent Current (ON mode) | 0.5 to 1 mA | |
| Quiescent Current (OFF mode) | 50 to 100 µA | |
| Supply Voltage Rejection | 76 dB at 120 Hz, 71 dB at 1 kHz, 60 dB at 10 kHz | |
| Output Noise Voltage | 50 µV (10 Hz to 100 kHz) | |
| Operating Temperature | -40 to 125 °C | |
| Package | DPAK (TO-252) |
Key Features
- Very Low Dropout Voltage: The LF50CDT-TR features a very low dropout voltage of 0.4 to 0.7 V at an output current of 500 mA, ensuring efficient power regulation.
- Low Quiescent Current: The regulator has a low quiescent current of 0.5 to 1 mA in ON mode and 50 to 100 µA in OFF mode, which helps in reducing power consumption.
- High Supply Voltage Rejection: It offers high supply voltage rejection, with values of 76 dB at 120 Hz, 71 dB at 1 kHz, and 60 dB at 10 kHz.
- Low Output Noise Voltage: The output noise voltage is as low as 50 µV over the frequency range of 10 Hz to 100 kHz.
- Wide Operating Temperature Range: The regulator operates over a temperature range of -40 to 125 °C, making it suitable for various environmental conditions.
Applications
The LF50CDT-TR is suitable for a variety of applications that require stable and efficient voltage regulation. These include:
- Industrial Automation: For powering control systems, sensors, and other industrial equipment.
- Consumer Electronics: In devices such as set-top boxes, DVD players, and other consumer electronic products.
- Automotive Systems: For use in automotive electronics where reliable and efficient power management is crucial.
- Medical Devices: In medical equipment that requires stable and low-noise power supply.
- Telecommunications: For powering communication equipment and network devices.
Q & A
- What is the output voltage of the LF50CDT-TR?
The output voltage of the LF50CDT-TR is 5V. - What is the maximum output current of the LF50CDT-TR?
The maximum output current is 500 mA. - What is the dropout voltage of the LF50CDT-TR at 500 mA output current?
The dropout voltage is between 0.4 and 0.7 V. - What is the quiescent current in ON and OFF modes?
In ON mode, the quiescent current is 0.5 to 1 mA, and in OFF mode, it is 50 to 100 µA. - What is the operating temperature range of the LF50CDT-TR?
The operating temperature range is -40 to 125 °C. - What package type is the LF50CDT-TR available in?
The LF50CDT-TR is packaged in a DPAK (TO-252) package. - What are the key features of the LF50CDT-TR?
The key features include very low dropout voltage, low quiescent current, high supply voltage rejection, and low output noise voltage. - Where can the LF50CDT-TR be used?
The LF50CDT-TR can be used in industrial automation, consumer electronics, automotive systems, medical devices, and telecommunications. - How does the LF50CDT-TR handle noise and voltage regulation?
The LF50CDT-TR offers high supply voltage rejection and low output noise voltage, ensuring stable and clean power output. - Is the LF50CDT-TR RoHS compliant?
Yes, the LF50CDT-TR is RoHS compliant.
