Overview
The L4993DTR, produced by STMicroelectronics, is a monolithic integrated 5 V voltage regulator designed with a low drop voltage. It is capable of handling currents up to 150 mA, making it suitable for various applications, particularly in the automotive sector. The device features a p-channel MOS output voltage regulating element and is known for its high precision output voltage, achieved through a pre-trimmed reference voltage. The L4993DTR is AEC-Q100 qualified, ensuring it meets stringent automotive standards.
Key Specifications
| Parameter | Value |
|---|---|
| Output Voltage | 5 V |
| Output Current | Up to 150 mA |
| Input Voltage Range | 5.6 V to 31 V |
| Dropout Voltage | 400 mV |
| Output Voltage Tolerance | ±2% |
| Quiescent Current (Typical) | 79 µA (Watchdog disabled) |
| Operating Temperature Range | -40°C to 150°C (Tj) |
| Package Types | SO-8, SO-20 |
Key Features
- AEC-Q100 qualified for automotive applications
- Low drop voltage at currents up to 150 mA
- Reset circuit sensing output voltage down to 1 V
- Programmable reset pulse delay with external capacitor
- Watchdog with programmable timer and enable input
- Thermal shutdown and short circuit protection
- Wide temperature range (-40°C to 150°C)
Applications
The L4993DTR is particularly suitable for supplying microprocessor systems in automotive applications due to its robust features such as reset and watchdog functionality. It can be used in various automotive electronic systems that require reliable and precise voltage regulation.
Q & A
- What is the output voltage of the L4993DTR?
The output voltage of the L4993DTR is 5 V. - What is the maximum output current of the L4993DTR?
The maximum output current is up to 150 mA. - What is the input voltage range for the L4993DTR?
The input voltage range is from 5.6 V to 31 V. - What is the dropout voltage of the L4993DTR?
The dropout voltage is 400 mV. - Is the L4993DTR AEC-Q100 qualified?
Yes, the L4993DTR is AEC-Q100 qualified, making it suitable for automotive applications. - What protection features does the L4993DTR have?
The L4993DTR has thermal shutdown and short circuit protection. - What is the operating temperature range of the L4993DTR?
The operating temperature range is from -40°C to 150°C (Tj). - Does the L4993DTR have a watchdog feature?
Yes, the L4993DTR has a programmable watchdog timer with an enable input. - What packages are available for the L4993DTR?
The L4993DTR is available in SO-8 and SO-20 packages. - What is the quiescent current of the L4993DTR?
The typical quiescent current is 79 µA with the watchdog disabled.
