LM53603AQPWPTQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM53603AQPWPTQ1 is an automotive-grade synchronous buck converter from Texas Instruments, designed for high-efficiency power management in demanding environments. It features a wide input voltage range of 3.9V to 36V and delivers up to 3A output current. The device operates at a fixed switching frequency of 2.1MHz, enabling the use of small external components. It offers adjustable output voltages with a maximum limit of 6V and includes integrated protection features such as overcurrent and thermal shutdown. Qualified under AEC-Q100 standards, it ensures reliability across a junction temperature range of -40°C to 125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification for enhanced efficiency and compact design
• Wide input voltage capability supporting diverse automotive power architectures
• Automotive qualification ensuring robust performance in harsh operating conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Infotainment system power distribution
• Telematics control unit regulation
• Body control module power supplies
• ADAS sensor power conditioning

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the specific suffix PWPTQ1 corresponds to the required automotive grade and package configuration. Confirm compatibility with your system's input voltage profile and thermal requirements. Ensure that the 2.1MHz switching frequency aligns with EMI constraints in your application. Cross-reference the datasheet for pinout accuracy and recommended external component values to guarantee stable operation.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a high-current, wide-input-range buck converter is needed for automotive applications. Consider the 3A output capability and 36V max input for systems requiring significant power handling. Evaluate the 2.1MHz frequency against size constraints for inductors and capacitors. Ensure the HTSSOP-16 package fits within the available PCB area and thermal dissipation limits of the final assembly.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM53603 family of SIMPLE SWITCHER regulators, which are known for their ease of use and high efficiency. The LM53603 series provides various output current options and input voltage ranges tailored for different automotive needs. As an automotive-qualified device, it meets stringent reliability standards required for vehicle electronics, offering a robust solution for critical power rails.

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum output voltage setting for this regulator?

The maximum adjustable output voltage is 6V.

Is the switching frequency fixed or adjustable?

The switching frequency is fixed at 2.1MHz.