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  • LM43603-Q1: Using LM43603-Q1 as an alternate to LM46002PWPT. We are having power supply start up issue

    TI Thinks Resolved
    Part Number: LM43603-Q1 Other Parts Discussed in Thread: LM43603 , LM46002 We are having startup issue with using an LM43603 rather than a LM46002. Schematic below. When the supply has around 6V to 8V at the input the output ripple is around 400mV. When…
    • Answered

  • LM43603: Powering IC from load side

    Resolved
    Part Number: LM43603 Does powering the IC from the load side cause a problem?
    • Resolved

  • LM43603: LM43603: Poor voltage regulation under load

    TI Thinks Resolved
    Part Number: LM43603 I have made 2 PCBs with the same schematic shown but different layouts. One circuit works fine and the other has poor output voltage regulation. On the one that has poor regulation, under no-load it outputs the desired voltgae (5…
    • Answered

  • LM43603-Q1: Difference between "LM43603PWPR" and "LM43603AQPWPTQ1"

    Resolved
    Part Number: LM43603-Q1 Dear TI I am thinking of replacing "LM43603PWPR" with "LM43603AQPWPTQ1". Please answer the following two points. (1) "LM43603AQPWPTQ1" is an in-vehicle grade product of "LM43603PWPR", and can it be considered…
    • Resolved

  • LM43603: Wash compatibility

    TI Thinks Resolved
    Part Number: LM43603 Hi TI Team, I would like to check if this part is able to undergo the washing process (using DI water). Please provide any relevant supporting document if possible. LM43603DSUR Thanks.
    • Answered

  • LM43603-Q1: Could you tell me the difference between LM43603-Q1 and LM43603A-Q1

    Resolved
    Part Number: LM43603-Q1 Other Parts Discussed in Thread: LM43603 Hi Team, The datasheet shows the following. --------------------------------------------- LM43603A-Q1 version is optimized for PFM operation and recommended for new design. The device is pinto…
    • Resolved

  • LM43603: No output

    Part Number: LM43603 Hi Team, Customer is having issue when using the LM43603 TINA-TI Transient Reference Design (snvm609 file) of LM43603. Below is the details. I downloaded the snvem609.tsc ,this model can not do DC analyze, no output. I want to use this…
    • Answered

  • LM43603: Output voltage too low with load / Works fine with lower indcutance

    Resolved
    Part Number: LM43603 Hello All In a no load condition the output voltage in the circuit below is 3.3VDC. With 2.5A load the voltage drops to about 3.0V. If I increase the inductor value to 6.8uH the voltage drops even more. With a 2.2uH inductor it works…
    • Resolved

  • LM43603-Q1: LM43603-Q1: What is the max tolerance of switching frequency?

    TI Thinks Resolved
    Part Number: LM43603-Q1 Hi, LM43603-Q1 is designed with input voltage range is from 9V to 36V and output is 5V in my customer's board. RT pin of LM43603-Q1 is connected with a resistor to make 990KHz switching frequency. The resistor value is 40.2Kohm…
    • Answered

  • LM43603: About Bootstrap capacitor selection

    Resolved
    Part Number: LM43603 Hi, I am considering using the LM43603 device. I would like to ask you about Bootstrap capacitors. The data sheet states that a capacitor with a withstand voltage of 6.3V or higher and a capacity of 0.47uF should be used. In EVM, 25V…
    • Resolved

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