Overview
The L5150CJ is an automotive-grade low dropout linear voltage regulator produced by STMicroelectronics. It is designed with microprocessor control functions, including power on reset, low voltage reset, and early warning. This regulator offers high output voltage accuracy of ±2% over a wide temperature range, line, and load variations. The device features a low quiescent current of 55 µA at very low output current and requires only a low-value ceramic capacitor for stability. The L5150CJ is AEC-Q100 qualified, ensuring its reliability in automotive applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating DC Supply Voltage Range | 5.6 V to 40 V | V |
| Output Voltage | 5 V ±2% | V |
| Maximum Input Voltage | 40 V | V |
| Maximum Output Current | 150 mA (internally limited) | mA |
| Quiescent Current | 55 µA (typical) | µA |
| Dropout Voltage | 500 mV (max) | mV |
| Temperature Range | -40 °C to 150 °C | °C |
| Package | PowerSSO-12 |
Key Features
- AEC-Q100 qualified for automotive applications
- Low dropout voltage
- Low quiescent current consumption
- Precision output voltage: 5 V ±2%
- Reset circuit sensing the output voltage
- Programmable reset pulse delay with external capacitor
- Adjustable reset threshold down to 3.5 V
- Early warning circuit
- Very wide stability range with low-value output capacitor
- Thermal shutdown and short-circuit protection
- Wide temperature range (Tj = -40 °C to 150 °C)
Applications
The L5150CJ is primarily designed for automotive applications, where its robust features and high reliability are crucial. It is suitable for use in various automotive systems that require stable and regulated voltage supplies, such as engine control units, infotainment systems, and other microprocessor-based systems.
Q & A
- What is the operating DC supply voltage range of the L5150CJ?
The operating DC supply voltage range is from 5.6 V to 40 V.
- What is the precision of the output voltage of the L5150CJ?
The output voltage is 5 V with an accuracy of ±2%.
- What is the maximum output current of the L5150CJ?
The maximum output current is internally limited to 150 mA.
- What is the quiescent current of the L5150CJ?
The typical quiescent current is 55 µA.
- Does the L5150CJ have thermal protection?
- What is the temperature range of the L5150CJ?
The temperature range is from -40 °C to 150 °C.
- Is the L5150CJ AEC-Q100 qualified?
- Can the reset threshold of the L5150CJ be adjusted?
- What type of capacitor is required for stability?
- Does the L5150CJ have an early warning feature?
