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  • TPS745-Q1: Recommendation value to design the TPS745-Q1

    TI Thinks Resolved
    Part Number: TPS745-Q1 Hi, I Would like to know is there any recommendation value for this each component, if there is no recomendation can you give me a calcculation to how to determine the value ? Thank you

  • TPS745-Q1: LDO PSRR Test Measurement

    TI Thinks Resolved
    Part Number: TPS745-Q1 Hi, I'm gonna use TPS74501PQWDRVRQ1 from TPS745-Q1 series but before that i want to test LDO PSRR, from the document i found there is 3 method to test PSRR : 1. Measuring using LC Summing Node Method 2. Summing Amplifier 3. by…
    • Answered

  • TPS745-Q1: Design review

    Resolved
    Part Number: TPS745-Q1 Hi TI engineers： In our project， we use TPS74501-Q1 ，and for this chip we have a question for its “PG” PIN , in TI datasheet ，the typical application for PG should pull-up to Vout as you can see picture 1，we want to…
    • Resolved

  • TPS745-Q1: If floating the EN pin, what will happen?

    TI Thinks Resolved
    Part Number: TPS745-Q1 Other Parts Discussed in Thread: TPS745 Hi TI expert, We connect the TPS74501 EN pin to IOC IO without pull-up or pull-down, is it ok? If EN pin floating, what will happen? Thanks.
    • Answered

  • TPS745-Q1: Inrush current check

    Resolved
    Part Number: TPS745-Q1 Hi, We use LDO TPS74501PQWDRVRQ1 in our design, Vin=5.8V / Vout=3.3V. We caught an inrush current during start-up. The max is 632mA. Can you help to check if any side-effect? Will the current damage the LDO? Regards, Hsing
    • Resolved

  • TPS745-Q1: mechanical parameter data of TPS74512PQWDRBRQ1

    Part Number: TPS745-Q1 Hello all, one of my top customer is asking the mechanical parameter data of TPS74512PQWDRBRQ1. Do you mind helping to input into the following table today? Please feel free to contact with me in there is any more information required…

  • TPS745-Q1: Does line regulation apply in negative direction also? (Can the output voltage decrease from nominal)

    TI Thinks Resolved
    Part Number: TPS745-Q1 Hi, The maximum line regulation of LDO is 7.5mV (TPS745-Q1 Datasheet) Can the output voltage decrease (from the nominal) due to line regulation? In the application note: https://www.ti.com/lit/an/slva079/slva079.pdf , it seems to…

  • TPS745-Q1: Vfb out of spec. Get's worse after several power cycles

    Part Number: TPS745-Q1 Other Parts Discussed in Thread: TPS745 Hi, I have the TPS745 used in the following manner. After first power up, the Vfb was 0.567V (and the output 0.835V instead of 0.8V). Which seems out of spec, though marginal. Yet after several…

  • TPS745-Q1: life span estimation

    TI Thinks Resolved
    Part Number: TPS745-Q1 Hi Expert, Please help to estimate TPS74501-Q1 life span with below working condition. The OEM requires 15years /300k km life span. Please help evaluate if we can meet this requirement. Thanks. ITEM TIME(HOUR) Engine…

  • TPS745-Q1: PG output configuration

    TI Thinks Resolved
    Part Number: TPS745-Q1 Hi Expert, I see TPS745-q1 PG pin has two output structures, open drain and push-pull. If we use open-drain, we can connect to any other VCC to communicate with other voltage level, right? Do we have a limit for the pull-up Vcc?…

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