Overview
The L4993MDTR is a monolithic integrated 5 V voltage regulator produced by STMicroelectronics. It is designed with a low drop voltage and can handle currents up to 150 mA. The device features a p-channel MOS output voltage regulating element and maintains regulation regardless of input voltage transients up to 40 V. The high precision of the output voltage is achieved through a pre-trimmed reference voltage. The L4993MDTR is particularly suited for supplying microprocessor systems in automotive applications due to its advanced features such as reset and watchdog functionalities.
Key Specifications
| Parameter | Value |
|---|---|
| Output Voltage | 5 V |
| Output Current | Up to 150 mA |
| Operating DC Supply Voltage Range | 5.6 V to 31 V |
| Dropout Voltage | 400 mV |
| Quiescent Current | 79 μA (typical with watchdog disabled) |
| Temperature Range | -40°C to 150°C (Tj) |
| Package Types | SO-8, SO-20 |
| RoHS Compliance | Ecopack2 |
Key Features
- AEC-Q100 qualified
- Reset circuit sensing the output voltage down to 1 V
- Programmable reset pulse delay with external capacitor
- Watchdog with programmable watchdog timer
- Enable input for enabling/disabling the watchdog functionality
- Thermal shutdown and short circuit protection
- Wide temperature range (Tj = -40°C to 150°C)
Applications
The L4993MDTR is specifically designed for automotive applications, particularly for supplying microprocessor systems. Its robust features such as watchdog, reset circuit, and thermal protection make it ideal for use in vehicles where reliability and precision are critical.
Q & A
- What is the output voltage of the L4993MDTR?
The output voltage of the L4993MDTR is 5 V. - What is the maximum output current of the L4993MDTR?
The maximum output current is up to 150 mA. - What is the operating DC supply voltage range of the L4993MDTR?
The operating DC supply voltage range is from 5.6 V to 31 V. - Does the L4993MDTR have thermal protection?
Yes, the L4993MDTR has thermal shutdown and short circuit protection. - What are the package types available for the L4993MDTR?
The package types available are SO-8 and SO-20. - Is the L4993MDTR RoHS compliant?
Yes, the L4993MDTR is RoHS compliant with an Ecopack2 rating. - What is the temperature range of the L4993MDTR?
The temperature range is from -40°C to 150°C (Tj). - Does the L4993MDTR have a watchdog feature?
Yes, it has a watchdog feature with a programmable watchdog timer. - Can the reset pulse delay be programmed on the L4993MDTR?
Yes, the reset pulse delay can be programmed using an external capacitor. - Is the L4993MDTR AEC-Q100 qualified?
Yes, the L4993MDTR is AEC-Q100 qualified.
