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Frequent questions

  • [FAQ] TPS549D22: What to do with the PMBus pins when the PMBus interface is not used

    Part Number: TPS549D22 Other Parts Discussed in Thread: TPS548B22 , TPS548D22 Depending on the available supply, customers may ask if they can use PMBus parts such as the TPS549D22 or TPS549D22 in place of their pin-to-pin counterparts that lack a PMBus…

  • [FAQ] How does load conditions, output capacitance and headroom affect my space rated LDOs Power Supply Rejection Ratio (PSRR) performance?

    Other Parts Discussed in Thread: TPS7H1111-SP , TPS7H1101A-SP , TPS7A4501-SP Answer: Looking at two of our most popular space rated Class V Low DropOut (LDO)s in our offering, and our upcoming release to market for our flagship ultra-low noise, high…

  • [FAQ] UCC21520: How can I use an ENable pin as a DISable and vise versa?

    Part Number: UCC21520 Other Parts Discussed in Thread: UCC21521 , How can I use an ENable pin as a DISable and vise versa?

  • [FAQ] TPS92633-Q1: How to design with TPS92633-Q1 in five minutes?

    Part Number: TPS92633-Q1 Other Parts Discussed in Thread: TPS92624-Q1 , TPS92623-Q1 Hi team, What are the prominent features of TPS92633-Q1? How can the external resistor components of the TPS92633-Q1 be designed? What should I pay attention…

  • [FAQ] TPS549D22: Can the PMBus circuits in the TPS549B22 / TPS549D22 support 1.8V pull-up termination voltage?

    Part Number: TPS549D22 Other Parts Discussed in Thread: TPS549B22 , Question: Can the PMBus pins on the TPS549B22 and TPS549D22 support a 1.8V I/O termination voltage for the pull-up resistors? Answer: The TPS549B22 and TPS549D22's PMBus pins…

  • [FAQ] TLC6984EVM: TLC698x: How to master TLC698x devices in LED Wall market within five minutes?

    Other Parts Discussed in Thread: TLC6984 , MSP430F5529 , TLC6984EVM The TLC6984 is a highly integrated common cathode matrix LED display driver with 48 constant current sources and 16 scanning FETs. A single TLC6984 is capable of driving 16 × 16 RGB LED…

  • [FAQ] BQ25720: How to change the compensation network in my buck-boost charger?

    Part Number: BQ25720 BQ25720, an NVDC battery buck-boost charge controller, chargers 1S-4S batteries from a wide-range input sources (3.5V-26V). There are multiple loops inside the charger, for example, input voltage, input current, system voltage…

  • [FAQ] BQ25700A: Buck-boost charger has high current ripple at light load. Is it stable?

    Part Number: BQ25700A It is normal to have high current ripple at light load. The BQ25700A operates in pulse frequency modulation (PFM) for best efficiency. It may skip a few pulses at light load. Moreover, the charger fully utilizes the 4 switches…

  • [FAQ] PTH04000W: PTH04000W's inductors

    Part Number: PTH04000W This product has different inductors depending on the LOT. There are also LOTs with resist. Are these the correct products?

  • [FAQ] BQ25713: What is the I2C device address of a battery charger?

    Part Number: BQ25713 Other Parts Discussed in Thread: BQSTUDIO The device address of a battery charger is a 7-bit address as specified by the I2C standard. The address can be converted as a hexadecimal value with a R/W bit at the end. For example, the…

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