Description:Switching Voltage Regulators Automotive 3-V to 10-V, 1-A, high-efficiency, low-IQ, synchronous buck converter in SOT-583 package 8-SOT-5X3 -40 to 150
Texas Instruments provides a recommended PCB layout in the datasheet, but it's essential to follow good PCB design practices, such as keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing trace lengths and widths to reduce EMI and noise.
The choice of input and output capacitors depends on the specific application requirements. Generally, use low-ESR capacitors with a high ripple current rating. For the input capacitor, a 10uF to 22uF ceramic capacitor is recommended, while for the output capacitor, a 10uF to 47uF ceramic capacitor is suitable. Consult the datasheet and application notes for more guidance.
The TPS62921QDYCRQ1 is rated for operation up to 125°C (TJ) junction temperature. However, for reliable operation, it's recommended to keep the ambient temperature below 105°C to ensure a sufficient margin for thermal derating.
To ensure stability, follow the recommended PCB layout, use the correct input and output capacitors, and ensure that the output voltage is within the specified range. Additionally, add a small ceramic capacitor (e.g., 100nF) between the VIN and GND pins to filter out high-frequency noise.
The TPS62921QDYCRQ1 has a minimum startup voltage of 2.5V, but it's recommended to ensure a minimum input voltage of 2.7V to 3.0V for reliable startup and operation.
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TPS629211QDYCRQ1 Overview
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About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
