The L4938NPD from STMicroelectronics is a highly versatile dual multifunction voltage regulator designed to cater to the demanding requirements of automotive electronic systems. This advanced component is specifically engineered to provide a stable and reliable power supply in a wide range of automotive applications, including engine control units, instrument clusters, and infotainment systems.

Key Features

• Operating Voltage Range: The L4938NPD operates over a wide voltage range, making it suitable for direct operation from a 12V battery supply, withstanding transient voltage spikes typically found in automotive environments.
• Dual Voltage Outputs: It provides two regulated voltages: a 5V output with a 450mA current capability, and an adjustable output that can be set from 5V to 20V with an external resistor divider, delivering up to 250mA.
• Low Dropout Voltage: The low dropout voltage ensures efficient operation even when the input voltage is close to the output voltage, reducing power dissipation and improving overall system reliability.
• Thermal Protection: The built-in thermal shutdown feature protects the device from damage due to overheating, enhancing the safety and durability of the application.
• Short-Circuit Protection: Both outputs are protected against short-circuit conditions, ensuring the regulator and connected components are safeguarded during fault conditions.

Applications

The L4938NPD is ideal for a variety of automotive applications, including but not limited to:

• Automotive Engine Control Units (ECUs)
• Body Control Modules (BCMs)
• Instrument Cluster Systems
• Infotainment and Telematics Systems

Package and Quality

The L4938NPD is available in a robust PowerSO-20 package, designed to withstand the harsh conditions of automotive environments. STMicroelectronics' commitment to quality ensures that this voltage regulator meets the stringent standards required for automotive-grade components, providing reliability and performance that automotive manufacturers can trust.