Overview
The STMicroelectronics LF80ABDT-TR is a low dropout voltage regulator designed to provide a stable output voltage of 8V with a maximum output current of 500mA. This regulator is part of the LFXX series, known for its very low dropout voltage and low quiescent current, making it suitable for low-noise, low-power applications, particularly in battery-powered systems.
The device is available in a DPAK package and operates over a wide temperature range from -40°C to +125°C, adhering to the automotive grade AEC-Q100 specifications. It features a shutdown logic control function in certain configurations, allowing for power management and reducing total power consumption.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Brand | STMicroelectronics | |
| Maximum Output Current | 500 | mA |
| Regulator Type | Low Dropout Voltage | |
| Number of Outputs | 1 | |
| Output Voltage | 8 | V |
| Line Regulation | 40 | mV |
| Load Regulation | 40 | mV |
| Accuracy | ±1% | |
| Mounting Type | Surface Mount | |
| Polarity | Positive | |
| Quiescent Current | 0.7 | mA |
| Package Type | DPAK | |
| Pin Count | 3 | |
| Output Type | Fixed | |
| Dimensions | 6.6 x 6.2 x 2.4 mm | |
| Minimum Operating Temperature | -40 | °C |
| Maximum Operating Temperature | +125 | °C |
| Maximum Input Voltage | 16 | V |
Key Features
- Very Low Dropout Voltage: The LF80ABDT-TR features a very low dropout voltage of 0.45V, making it efficient for applications requiring minimal voltage loss.
- Low Quiescent Current: The regulator has a low quiescent current of 0.7mA in ON mode and 50µA in OFF mode, which is beneficial for battery-powered systems.
- High Accuracy and Regulation: It offers high accuracy with ±1% output voltage tolerance and excellent line and load regulation of 40mV.
- Wide Operating Temperature Range: The device operates over a temperature range of -40°C to +125°C, making it suitable for various environmental conditions.
- Shutdown Logic Control: In certain configurations, the device includes a shutdown logic control function, allowing for power management and reducing overall power consumption.
- Compact Package: The DPAK package is compact and surface-mountable, saving board space and costs.
Applications
- Battery-Powered Systems: The low quiescent current and low dropout voltage make it ideal for battery-powered devices, extending battery life.
- Automotive Systems: Qualified according to the AEC-Q100 specification, it is suitable for automotive applications requiring high reliability and performance over a wide temperature range.
- Low-Power Electronics: It is used in various low-power electronic devices where efficiency and minimal power consumption are critical.
- Industrial Control Systems: The regulator's stability and accuracy make it a good choice for industrial control systems that require reliable voltage regulation.
Q & A
- What is the output voltage of the LF80ABDT-TR?
The output voltage of the LF80ABDT-TR is 8V.
- What is the maximum output current of the LF80ABDT-TR?
The maximum output current is 500mA.
- What is the dropout voltage of the LF80ABDT-TR?
The dropout voltage is 0.45V.
- What is the quiescent current of the LF80ABDT-TR in ON mode?
The quiescent current in ON mode is typically 0.7mA.
- What is the operating temperature range of the LF80ABDT-TR?
The operating temperature range is from -40°C to +125°C.
- What package type is the LF80ABDT-TR available in?
The LF80ABDT-TR is available in a DPAK package.
- Does the LF80ABDT-TR have a shutdown logic control function?
In certain configurations, yes, it does have a shutdown logic control function.
- What is the line regulation of the LF80ABDT-TR?
The line regulation is 40mV.
- What is the load regulation of the LF80ABDT-TR?
The load regulation is 40mV.
- Is the LF80ABDT-TR suitable for automotive applications?
