Texas Instruments provides a recommended PCB layout in the datasheet, but it's also important to follow general high-frequency layout guidelines, such as keeping the input and output capacitors close to the device, using a solid ground plane, and minimizing trace lengths and widths.
The selection of input and output capacitors depends on the specific application requirements, such as ripple current, voltage rating, and ESR. A good starting point is to use X5R or X7R ceramic capacitors with a voltage rating of at least 1.5 times the input voltage, and an ESR of less than 100 mΩ.
The TPS26622DRCR is rated for operation from -40°C to 125°C, but the maximum ambient temperature range depends on the specific application and the thermal design of the system. It's recommended to follow the thermal design guidelines in the datasheet and to perform thermal simulations to ensure the device operates within its specified temperature range.
The TPS26622DRCR has a specific power-up and power-down sequence that must be followed to ensure proper operation. The EN pin should be pulled high to enable the device, and the input voltage should be applied before the output voltage. During power-down, the EN pin should be pulled low before the input voltage is removed.
The recommended input voltage range for the TPS26622DRCR is 2.7V to 5.5V, but the device can operate from 2.3V to 5.5V. However, the output voltage regulation and efficiency may be affected at lower input voltages.
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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.
