Texas Instruments

TPS54040DGQ

TPS54040DGQ Description

The TPS54040DGQ from Texas Instruments is a high-performance, 42V input, 500mA adjustable buck (step-down) DC-DC converter in a compact 10-pin HVSSOP package. Designed for robust industrial and automotive applications, it operates over a wide 3.5V to 42V input range and delivers an adjustable output from 0.8V to 39V, making it highly versatile for diverse power supply needs. With a switching frequency range of 100kHz to 2.5MHz, it offers flexibility for optimizing efficiency and component size. The device features non-synchronous rectification and is RoHS3 compliant, meeting stringent environmental standards. Its MSL 1 (Unlimited) rating ensures reliability in storage and handling.

TPS54040DGQ Features

• Wide Input Voltage Range (3.5V–42V): Supports high-voltage applications, including automotive and industrial systems.
• Adjustable Output (0.8V–39V): Precision output voltage programming via external resistors.
• High Efficiency: Optimized for 100kHz–2.5MHz switching frequency, enabling trade-offs between efficiency and board space.
• Compact Design: 10-pin HVSSOP package saves PCB area, ideal for space-constrained applications.
• Robust Protection: Includes undervoltage lockout (UVLO), thermal shutdown, and cycle-by-cycle current limiting.
• Non-Synchronous Topology: Simplifies design while maintaining high performance for cost-sensitive applications.
• REACH and RoHS3 Compliant: Environmentally friendly and suitable for global markets.

TPS54040DGQ Applications

• Industrial Power Systems: Suitable for PLCs, sensors, and factory automation due to its wide input range and reliability.
• Automotive Electronics: Powers infotainment, ADAS, and lighting systems in 12V/24V automotive environments.
• Telecom and Networking: Ideal for PoE (Power over Ethernet) and base station power supplies.
• Consumer Electronics: Used in portable devices, IoT modules, and battery-powered applications requiring efficient step-down conversion.
• Renewable Energy: Supports solar MPPT controllers and energy harvesting systems with its high input voltage capability.

Conclusion of TPS54040DGQ

The TPS54040DGQ stands out as a highly flexible, efficient, and compact buck converter for demanding applications. Its wide input range, adjustable output, and robust protection features make it superior to fixed-output or lower-voltage alternatives. Whether in automotive, industrial, or consumer systems, this regulator delivers reliable performance with minimal external components, reducing design complexity and BOM cost. Texas Instruments’ reputation for quality ensures this device meets the highest standards for performance, durability, and environmental compliance.