Overview
The LE50CD-TR is a very low-dropout voltage regulator produced by STMicroelectronics. This component is part of the LEXX series, known for its low-dropout voltage and low quiescent current, making it suitable for low-noise, low-power applications and battery-powered systems. The LE50CD-TR is available in an 8-pin SO-8 package and offers a fixed output voltage of 5V.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Output Voltage | 4.9 | 5 | 5.1 | V |
| Operating Input Voltage | 18 | V | ||
| Output Current Limit | 150 | 425 | mA | |
| Line Regulation | 30 | mV | ||
| Load Regulation | 25 | mV | ||
| Quiescent Current (ON mode) | 0.5 | 1 | mA | |
| Quiescent Current (OFF mode) | 50 | 100 | µA | |
| Dropout Voltage | 0.2 | 0.4 | V | |
| Operating Temperature Range | -40 | 125 | °C | |
| Supply Voltage Rejection | 76 | dB | ||
| Output Noise Voltage | 50 | µV |
Key Features
- Very Low Dropout Voltage: Typical dropout voltage of 0.2V, making it suitable for low-voltage applications.
- Low Quiescent Current: Quiescent current of 0.5 mA in ON mode and 50 µA in OFF mode, ideal for battery-powered systems.
- High Output Current: Output current up to 100 mA.
- Internal Current and Thermal Limit: Built-in current and thermal limiting for enhanced reliability.
- Small Capacitor Requirement: Requires a small 2.2 µF capacitor for stability.
- Precision Output Voltage: Available in ±1% (A) or ±2% (C) selection at 25 °C.
- Shutdown Logic Control: TTL-compatible inhibit function for controlling the regulator's ON/OFF state.
- Wide Temperature Range: Operating temperature range from -40 °C to 125 °C.
Applications
- Low-Power Systems: Ideal for applications requiring low power consumption, such as battery-powered devices.
- Low-Noise Applications: Suitable for systems that require minimal noise, such as audio equipment and medical devices.
- Industrial Automation: Used in industrial control systems and automation where stable voltage regulation is crucial.
- Consumer Electronics: Found in various consumer electronics requiring stable and efficient voltage regulation.
Q & A
- What is the output voltage of the LE50CD-TR?
The output voltage of the LE50CD-TR is 5V.
- What is the maximum output current of the LE50CD-TR?
The maximum output current is up to 100 mA.
- What is the dropout voltage of the LE50CD-TR?
The typical dropout voltage is 0.2V.
- What is the quiescent current in ON mode?
The quiescent current in ON mode is typically 0.5 mA.
- What is the operating temperature range of the LE50CD-TR?
The operating temperature range is from -40 °C to 125 °C.
- Does the LE50CD-TR have a shutdown function?
Yes, it has a TTL-compatible inhibit function for controlling the regulator's ON/OFF state.
- What type of package is the LE50CD-TR available in?
The LE50CD-TR is available in an 8-pin SO-8 package.
- What is the supply voltage rejection of the LE50CD-TR?
The supply voltage rejection is typically 76 dB at 120 Hz.
- What is the output noise voltage of the LE50CD-TR?
The output noise voltage is typically 50 µV over the frequency range of 10 Hz to 100 kHz.
- Is the LE50CD-TR pin-to-pin compatible with other regulators?
Yes, it is pin-to-pin compatible with the L78L series.
