Overview
The L4995KTR is a monolithic integrated 5V voltage regulator from STMicroelectronics, designed for automotive applications. It is part of the L4995 family, which features low drop voltage regulators capable of handling currents up to 500 mA. The device is available in both 12 and 24 pin packages, specifically the PowerSSO-24 package for the L4995KTR variant. The regulator uses a p-channel MOS to maintain precise output voltage regulation, even with input voltage transients up to 40V. It is AEC-Q100 qualified, ensuring reliability and performance in harsh automotive environments.
Key Specifications
| Parameter | Value |
|---|---|
| Output Voltage | 5 V |
| Output Current | Up to 500 mA |
| Input Voltage Range | 5.6 V to 31 V |
| Dropout Voltage | 0.5 V |
| Quiescent Current | 3 µA (typical, regulator disabled) |
| Output Voltage Tolerance | ±2% |
| Operating Temperature Range | -40 °C to 150 °C (Tj) |
| Package Type | PowerSSO-24 (exposed pad) |
Key Features
- AEC-Q100 qualified for automotive reliability
- 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
- Wide temperature range (Tj = -40 °C to 150 °C)
- Enable input for enabling/disabling the voltage regulator
Applications
The L4995KTR is particularly suited for supplying microprocessor systems in automotive applications. Its robust features, such as thermal shutdown, short circuit protection, and programmable reset and watchdog timers, make it an ideal choice for the harsh environments found in automotive systems.
Q & A
- What is the output voltage of the L4995KTR?
The output voltage of the L4995KTR is 5 V.
- What is the maximum output current of the L4995KTR?
The maximum output current is up to 500 mA.
- What is the input voltage range for the L4995KTR?
The input voltage range is from 5.6 V to 31 V.
- What is the dropout voltage of the L4995KTR?
The dropout voltage is 0.5 V.
- Is the L4995KTR AEC-Q100 qualified?
Yes, the L4995KTR is AEC-Q100 qualified.
- What kind of protection does the L4995KTR offer?
The L4995KTR offers thermal shutdown and short circuit protection.
- Can the reset pulse delay be programmed on the L4995KTR?
Yes, the reset pulse delay can be programmed using an external capacitor.
- Does the L4995KTR have a watchdog timer?
Yes, the L4995KTR has a programmable watchdog timer using an external capacitor.
- What is the operating temperature range of the L4995KTR?
The operating temperature range is from -40 °C to 150 °C (Tj).
- In what package is the L4995KTR available?
The L4995KTR is available in the PowerSSO-24 package with an exposed pad.
