Overview
The LF25CDT-TRY is a very low-dropout voltage regulator produced by STMicroelectronics. This component is part of the LFXX series, known for its high performance and reliability. The LF25CDT-TRY is specifically designed to provide a stable output voltage of 2.5V, making it suitable for a wide range of applications, including automotive and industrial systems. It features a very low dropout voltage, low quiescent current, and high output current capability, making it an ideal choice for power management in various electronic devices.
Key Specifications
| Parameter | Test Condition | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| Output Voltage (VO) | IO = 50 mA, VI = 4.5 V | 2.45 | 2.5 | 2.55 | V |
| Operating Input Voltage (VI) | IO = 500 mA | 3.5 | - | 16 | V |
| Output Current Limit (IO) | - | - | - | 1 | A |
| Quiescent Current (Id) - ON Mode | VI = 3.5 to 16 V, IO = 0 mA | 0.5 | - | 2 | mA |
| Quiescent Current (Id) - OFF Mode | VI = 3.8 to 16 V, IO = 500 mA | 50 | - | 120 | µA |
| Dropout Voltage (Vd) | IO = 200 mA | 0.2 | - | 1.3 | V |
| Supply Voltage Rejection (SVR) | IO = 5 mA, VI = 4.5 ± 1 V, f = 120 Hz | - | 82 | - | dB |
| Output Noise Voltage (eN) | B = 10 Hz to 100 kHz | - | 50 | - | µV |
| Control Input Logic Low (VIL) | Ta = -40 to 125 °C | - | 0.8 | - | V |
| Control Input Logic High (VIH) | Ta = -40 to 125 °C | - | 2 | - | V |
| Output Bypass Capacitance (CO) | ESR = 0.1 to 10 Ω, IO = 0 to 500 mA | 2 | - | 10 | µF |
Key Features
- Very Low Dropout Voltage: The LF25CDT-TRY features a very low dropout voltage of 0.2 to 1.3 V, ensuring efficient power regulation.
- Low Quiescent Current: It has a low quiescent current of 0.5 to 2 mA in ON mode and 50 to 120 µA in OFF mode, which is beneficial for power-saving applications.
- High Output Current: The regulator can supply up to 500 mA of output current, making it suitable for various power-intensive applications.
- Logic-Controlled Electronic Shutdown: The component includes a logic-controlled shutdown feature, allowing for easy control over the power supply.
- Internal Current and Thermal Limit: It has internal current and thermal limiting, which helps in protecting the device from overcurrent and overheating conditions.
- High Supply Voltage Rejection: The LF25CDT-TRY offers high supply voltage rejection, typically 82 dB at 120 Hz, ensuring stable output voltage despite input voltage variations.
- Low Output Noise Voltage: The output noise voltage is typically 50 µV over the frequency range of 10 Hz to 100 kHz, contributing to a clean power supply.
- Automotive Grade: This component is available in automotive grade, making it reliable for use in automotive systems.
Applications
- Automotive Systems: The LF25CDT-TRY is suitable for use in automotive systems due to its automotive grade and robust specifications.
- Industrial Control Systems: It can be used in industrial control systems where stable and efficient power supply is crucial.
- Consumer Electronics: This regulator is also applicable in consumer electronics such as audio equipment, medical devices, and other electronic appliances requiring stable power supply.
- Power Management Modules: It can be integrated into power management modules for various electronic devices.
Q & A
- What is the output voltage of the LF25CDT-TRY?
The output voltage of the LF25CDT-TRY is 2.5V.
- What is the maximum output current of the LF25CDT-TRY?
The maximum output current of the LF25CDT-TRY is up to 500 mA.
- What is the dropout voltage of the LF25CDT-TRY?
The dropout voltage of the LF25CDT-TRY is typically between 0.2 to 1.3 V.
- What is the quiescent current in ON mode for the LF25CDT-TRY?
The quiescent current in ON mode for the LF25CDT-TRY is typically between 0.5 to 2 mA.
- Does the LF25CDT-TRY have internal current and thermal limiting?
Yes, the LF25CDT-TRY has internal current and thermal limiting features.
- What is the supply voltage rejection of the LF25CDT-TRY?
The supply voltage rejection of the LF25CDT-TRY is typically 82 dB at 120 Hz.
- What is the output noise voltage of the LF25CDT-TRY?
The output noise voltage of the LF25CDT-TRY is typically 50 µV over the frequency range of 10 Hz to 100 kHz.
- Is the LF25CDT-TRY available in automotive grade?
Yes, the LF25CDT-TRY is available in automotive grade.
- What is the operating temperature range of the LF25CDT-TRY?
The operating temperature range of the LF25CDT-TRY is from -40 to 125 °C.
- What is the logic-controlled shutdown feature of the LF25CDT-TRY?
The LF25CDT-TRY features a logic-controlled electronic shutdown, allowing for easy control over the power supply.
