Overview
The L5150CS, produced by STMicroelectronics, is a low dropout linear regulator designed for automotive applications. It features microprocessor control functions including power on reset, low voltage reset, and early warning. The regulator offers high output voltage accuracy of ±2% over a wide temperature range, line, and load variations. The typical quiescent current is 55 μA at very low output current, making it energy-efficient. The device is AEC-Q100 qualified, ensuring it meets stringent automotive standards.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| DC Supply Voltage Range | 5.6 to 40 | V |
| Output Voltage | 5 V ±2% | V |
| Dropout Voltage | 500 mV | V |
| Maximum Output Current | Internally limited | mA |
| Quiescent Current | 55 μA (typical) | μA |
| Operating Temperature Range | -40 to 150 | °C |
| Package | SO-8 |
Key Features
- AEC-Q100 qualified for automotive applications
- Operating DC supply voltage range: 5.6 V to 40 V
- 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 L5150CS is primarily designed for automotive applications, where reliability, precision, and robustness are critical. It is suitable for use in various automotive systems that require stable and regulated voltage supplies, such as:
- Automotive control units
- Sensor systems
- Infotainment systems
- Other automotive electronics requiring stable voltage regulation
Q & A
- What is the operating DC supply voltage range of the L5150CS?
The operating DC supply voltage range is from 5.6 V to 40 V.
- What is the precision of the output voltage?
The output voltage is 5 V with an accuracy of ±2%.
- What is the typical quiescent current of the L5150CS?
The typical quiescent current is 55 μA.
- Can the reset threshold be adjusted?
- Does the L5150CS have thermal protection?
- What is the maximum output current of the L5150CS?
The maximum output current is internally limited.
- What type of package is available for the L5150CS?
The L5150CS is available in an SO-8 package.
- Is the L5150CS AEC-Q100 qualified?
- What is the operating temperature range of the L5150CS?
The operating temperature range is from -40 °C to 150 °C.
- Does the L5150CS have an early warning feature?
