Overview
The L4993MD, 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 and is particularly suited for automotive applications. The device features a p-channel MOS output voltage regulating element and maintains high precision of the output voltage through a pre-trimmed reference voltage. It includes state-of-the-art features such as reset and watchdog functions, making it ideal for supplying microprocessor systems in automotive environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating DC Supply Voltage Range | 5.6 to 31 | V |
| Output Voltage | 5 | V |
| Output Current | 150 | mA |
| Quiescent Current (Iq) | 125 | µA |
| Dropout Voltage (Vdp) | 0.4 | V @ 150mA |
| Power Supply Rejection Ratio (PSRR) | 55 | dB @ 100Hz |
| Operating Temperature Range | -40 to 150 | °C |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) | |
| Mounting Type | Surface Mount | |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | |
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant |
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 using an external capacitor
- 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 L4993MD is particularly suitable for supplying microprocessor systems in automotive applications due to its robust features such as reset, watchdog, and protection against short circuits and over-temperature conditions.
Q & A
- What is the operating DC supply voltage range of the L4993MD?
The operating DC supply voltage range is from 5.6 V to 31 V.
- What is the maximum output current of the L4993MD?
The maximum output current is 150 mA.
- What is the quiescent current (Iq) of the L4993MD?
The quiescent current (Iq) is 125 µA.
- What protection features does the L4993MD have?
The L4993MD has thermal shutdown and short circuit protection.
- Is the L4993MD AEC-Q100 qualified?
Yes, the L4993MD is AEC-Q100 qualified.
- What is the operating temperature range of the L4993MD?
The operating temperature range is from -40°C to 150°C.
- What is the package type of the L4993MD?
The package type is 20-SOIC (0.295", 7.50mm Width).
- Does the L4993MD have a watchdog feature?
Yes, the L4993MD has a watchdog feature with a programmable watchdog timer.
- Is the L4993MD lead-free and RoHS compliant?
Yes, the L4993MD is lead-free and RoHS compliant.
- What is the moisture sensitivity level (MSL) of the L4993MD?
The moisture sensitivity level (MSL) is 3 (168 Hours).
