The Texas Instruments TPS54040DGQR is a high-efficiency, 42 V, 0.5 A step-down (buck) regulator in a compact HVSSOP-10 SMD package. Engineered for space-constrained, high-performance power management applications, this converter delivers adjustable output (0.8 V to 39 V), ultra-low quiescent current (116 µA), and a broad input voltage range (3.5 V to 42 V), making it a robust solution for the industrial, telecom, and energy sectors.
Crucial Features and Advantages
- Adjustable Output (0.8 V–39 V, 500 mA): Versatile power supply for various load demands.
- Low Quiescent Current (116 µA): Enables extended battery life in sleep or low-load conditions, making it ideal for IoT and remote sensors.
- Switching Frequency 100 kHz–2.5 MHz: Allows for compact external components and tight voltage regulation.
- Wide Temperature Range (–40 °C to +150 °C): Suits harsh industrial and automotive environments.
- Shutdown Current: Only 1.3 µA in the disabled state via the enable pin, ensuring minimal standby power usage.
- Protective Properties: Includes under-voltage lockout (UVLO), soft-start control, open-drain power-good output, frequency foldback, and thermal shutdown for robust, reliable operation.
Why Buy It?
Designed with an integrated high-side MOSFET and ECO-Mode light-load efficiency, the TPS54040DGQR offers optimal power integrity and compact design, driving cost savings and system-level performance. It's ideal for global B2B customers requiring flexible and reliable DC-DC power conversion in industrial, instrumentation, and communications equipment.