Overview
The STMicroelectronics LE50ABD-TR is a low-dropout (LDO) linear voltage regulator designed to provide a stable 5V output voltage with a maximum output current of 100mA. This regulator is part of STMicroelectronics' range of LDO voltage regulators, known for their ability to operate with a small input–output differential voltage, offering fast transient response, a wide input voltage range, low quiescent current, and low noise with high power supply rejection ratio (PSRR).
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Brand | STMicroelectronics | |
| Maximum Output Current | 100 | mA |
| Regulator Type | Low Dropout Voltage | |
| Number of Outputs | 1 | |
| Output Voltage | 5 | V |
| Line Regulation | 20 | mV |
| Load Regulation | 15 | mV |
| Accuracy | ±1% | |
| Mounting Type | Surface Mount | |
| Polarity | Positive | |
| Quiescent Current | 1.5 | mA |
| Package Type | SOIC | |
| Pin Count | 8 | |
| Output Type | Fixed | |
| Dimensions | 5 x 4 x 1.65 | mm |
| Minimum Operating Temperature | -40 | °C |
| Maximum Operating Temperature | +125 | °C |
| Maximum Input Voltage | 18 | V |
| Dropout Voltage | 0.2 - 0.4 | V |
Key Features
- Low Dropout Voltage: The LE50ABD-TR features a very low dropout voltage of 0.2 to 0.4V, making it suitable for applications where a small input–output differential voltage is required.
- Low Quiescent Current: The regulator has a low quiescent current of 1.5mA in ON mode and 50µA in OFF mode, contributing to power efficiency.
- High PSRR: It offers a high power supply rejection ratio (PSRR) of up to 76dB at 120Hz, ensuring low noise and stable output voltage.
- Inhibit Function: The device includes an inhibit function that allows part of the board to be put in standby mode, reducing total power consumption.
- Wide Operating Temperature Range: The regulator operates over a temperature range of -40°C to +125°C, making it suitable for various environmental conditions.
Applications
- Embedded Systems: Ideal for use in embedded systems where a stable and low-noise power supply is crucial.
- Industrial Automation: Suitable for industrial automation applications requiring reliable and efficient voltage regulation.
- Consumer Electronics: Used in consumer electronics such as audio equipment, medical devices, and other portable electronics.
- Automotive Systems: Can be used in automotive systems due to its wide operating temperature range and robust performance.
Q & A
- What is the maximum output current of the LE50ABD-TR?
The maximum output current is 100mA.
- What is the output voltage of the LE50ABD-TR?
The output voltage is fixed at 5V.
- What is the dropout voltage of the LE50ABD-TR?
The dropout voltage is 0.2 to 0.4V.
- What is the quiescent current of the LE50ABD-TR in ON mode?
The quiescent current in ON mode is 1.5mA.
- What is the package type of the LE50ABD-TR?
The package type is SOIC-8.
- What is the operating temperature range of the LE50ABD-TR?
The operating temperature range is -40°C to +125°C.
- Does the LE50ABD-TR have an inhibit function?
Yes, it includes an inhibit function to put part of the board in standby mode.
- What is the maximum input voltage for the LE50ABD-TR?
The maximum input voltage is 18V.
- What is the power supply rejection ratio (PSRR) of the LE50ABD-TR?
The PSRR is up to 76dB at 120Hz.
- Is the LE50ABD-TR RoHS compliant?
Yes, the LE50ABD-TR is RoHS compliant.
