Overview
The LF33CDT-TRY is a high-accuracy linear voltage regulator produced by STMicroelectronics. This component is designed for use in various applications, including automotive and industrial environments, where stable and reliable voltage regulation is crucial. The LF33CDT-TRY offers a fixed output voltage of 3.3V and can supply up to 0.5A of current, making it suitable for a wide range of power management needs.
Key Specifications
| Parameter | Typical Value | Minimum Value | Maximum Value | Unit |
|---|---|---|---|---|
| Output Voltage | 3.3 | 3.234 | 3.366 | V |
| Output Current | 0.5 | - | - | A |
| Input Voltage Range | - | 4.3 | 16 | V |
| Dropout Voltage (at 200mA) | 0.2 | 0.2 | 0.35 | V |
| Dropout Voltage (at 500mA) | 0.4 | 0.4 | 0.7 | V |
| Line Regulation | 16mV | - | - | mV |
| Load Regulation | 16mV | - | - | mV |
| Quiescent Current (ON mode) | 0.5mA | 0.5mA | 1mA | mA |
| Quiescent Current (OFF mode) | 50µA | 50µA | 100µA | µA |
| Operating Temperature Range | - | -40°C | 125°C | °C |
| Package Type | DPAK | - | - | - |
Key Features
- High Accuracy: The LF33CDT-TRY offers a high accuracy of ±2% for the output voltage.
- Low Dropout Voltage: The regulator features a very low dropout voltage, typically 0.2V at 200mA and 0.4V at 500mA.
- Low Quiescent Current: It has a low quiescent current of 0.5mA in ON mode and 50µA in OFF mode.
- Thermal Protection and Current Limitation: The device includes thermal protection and current limitation features to ensure safe operation.
- Wide Operating Temperature Range: It operates over a temperature range of -40°C to 125°C, making it suitable for harsh environments.
- Surface Mount Package: Available in a DPAK package, which is suitable for surface mount applications.
Applications
- Automotive Systems: The LF33CDT-TRY is designed for use in automotive applications where reliable voltage regulation is critical.
- Industrial Control Systems: It is also suitable for industrial control systems that require stable and accurate voltage supply.
- Power Management in Embedded Systems: This regulator can be used in various embedded systems where a stable 3.3V supply is needed.
- Consumer Electronics: It can be applied in consumer electronics that require low dropout voltage and high accuracy.
Q & A
- What is the output voltage of the LF33CDT-TRY?
The output voltage of the LF33CDT-TRY is 3.3V with an accuracy of ±2%.
- What is the maximum output current of the LF33CDT-TRY?
The maximum output current is 0.5A.
- What is the input voltage range for the LF33CDT-TRY?
The input voltage range is from 4.3V to 16V.
- What is the dropout voltage at 200mA and 500mA?
The dropout voltage is typically 0.2V at 200mA and 0.4V at 500mA.
- Does the LF33CDT-TRY have thermal protection?
Yes, the device includes thermal protection and current limitation features.
- What is the operating temperature range of the LF33CDT-TRY?
The operating temperature range is from -40°C to 125°C.
- In what package is the LF33CDT-TRY available?
The LF33CDT-TRY is available in a DPAK package.
- What are the typical quiescent currents in ON and OFF modes?
The quiescent current is typically 0.5mA in ON mode and 50µA in OFF mode.
- Is the LF33CDT-TRY suitable for automotive applications?
Yes, it is designed for use in automotive applications.
- What are the line and load regulations of the LF33CDT-TRY?
The line and load regulations are both 16mV.
