Overview
The L4995AJ is a part of the L4995 family of monolithic integrated 5V voltage regulators produced by STMicroelectronics. This device is specifically designed for automotive applications and offers a low drop voltage at currents of up to 500 mA. Available in both 12 and 24 pin packages, the L4995AJ features a p-channel MOS output voltage regulating element, ensuring high precision of the output voltage through a pre-trimmed reference voltage. The device is protected against short circuit and overtemperature, making it highly reliable for use in demanding automotive environments.
Key Specifications
| Parameter | Value |
|---|---|
| Operating DC Supply Voltage Range | 5.6 V to 31 V |
| Max DC Supply Voltage | 40 V |
| Output Voltage Tolerance | ±2% |
| Dropout Voltage | 500 mV |
| Output Current | 500 mA |
| Quiescent Current | 3 µA (typical with regulator disabled) |
| Temperature Range (Tj) | -40 °C to 150 °C |
| Package Types | PowerSSO-12, PowerSSO-24 (exposed pad) |
Key Features
- AEC-Q100 qualified for automotive applications
- Low dropout voltage
- Low quiescent current consumption
- Reset circuit sensing of output voltage down to 1 V
- Programmable reset pulse delay with external capacitor
- Programmable watchdog timer with external capacitor
- Thermal shutdown and short circuit protection
- Enable input for enabling/disabling the voltage regulator
Applications
The L4995AJ is particularly suited for supplying microprocessor systems in automotive applications. Its robust design and comprehensive protection features make it ideal for use in vehicles where reliability and stability are critical.
Q & A
- What is the operating DC supply voltage range of the L4995AJ?
The operating DC supply voltage range is from 5.6 V to 31 V.
- What is the maximum output current of the L4995AJ?
The maximum output current is 500 mA.
- What is the dropout voltage of the L4995AJ?
The dropout voltage is 500 mV.
- Is the L4995AJ protected against overtemperature and short circuits?
- What are the package options for the L4995AJ?
The L4995AJ is available in PowerSSO-12 and PowerSSO-24 packages with exposed pads.
- Does the L4995AJ have programmable reset and watchdog features?
- What is the temperature range of the L4995AJ?
The temperature range is from -40 °C to 150 °C (Tj).
- Is the L4995AJ AEC-Q100 qualified?
- How does the L4995AJ regulate output voltage?
The output voltage is regulated using a p-channel MOS and a pre-trimmed reference voltage.
- What is the quiescent current of the L4995AJ when the regulator is disabled?
The quiescent current is typically 3 µA when the regulator is disabled.
