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TPS629206: TPS629206

Part Number: TPS629206
Other Parts Discussed in Thread: TPS62745, TPS62125, TPS62840, TPS62150, TPS62050

Hello, I need a stabilizer with an input voltage of 3.3 - 6.5 V and an output voltage of 3.3 V for a battery-powered device. What current will be at the input at load currents of 0 µA, 10 µA in PFM mode. Thank you.

  • Hi Alex,

    I‘ll check it on our EVM and reply you tomorrow.

  • Hi Alex,

    The results of bench test is attached.

    Iout=0uA, Vout=3.3V
    Vin Iin/uA
    6.5 14.8
    6 15.5
    5.5 16.5
    5 17.7
    4.5 19.1
    4 21.1
    3.9 22.2
    3.8 2896
    3.7 2507
    3.6 2123
    3.5 1744
    3.4 1377
    3.3 1061
    Iout=10uA, Vout=3.3V
    Vin Iin/uA
    6.5 23.1
    6 24.4
    5.5 26.2
    5 28.3
    4.5 31.1
    4 34.4
    3.9 36.3
    3.8 2908
    3.7 2518
    3.6 2135
    3.5 1756
    3.4 1391
    3.3 1074

    You can see the input current would increase as high as 2mA when input voltage is close to 3.8V because the device would run into FCCM at high duty cycle.

    If you have strict request of input current, maybe TPS62745/TPS62125 is more suitable.

    Please let me know if you need further info.

  • Hello Athos! Thank you very much for the detailed information! Unfortunately, TPS62745/TPS62125 have insufficient load current (300 mA). The device must provide a load current of at least 600 mA. I was looking at tps62840. What are the input currents of this device at load currents of 0 µA and 10 µA? Best regards, Alex

  • Hi Alex,

    TPS62840 belongs to another team, I'll loop them for this data support.

    In the meantime, you can take TPS62150/TPS62050 into consideration. 

    The maximum input current of TPS62150 under 0uA output current is 785uA when it runs into 100% duty mode while it's 483uA of TPS62050.

    TPS62150
    Vin Iin(uA)
    3.5 21.6
    3.4 21.6
    3.31 21.6
    3.3 785
    3.4 785
    3.45 785
    3.46 21.6

    TPS62050
    3.4 25
    3.35 25
    3.34 467
    3.24 483
    3.39 471
    3.4 25
  • Hello Alex,

    Can you please provide me the desired Vin range at which you would like to know the input current for TPS62840 and can you also please confirm the Vout = 3.3V

    Thank you & regards,

    Moheddin.

  • Hello, Moheddin,

    Input voltage range 3.3 V - 6.5 V, output voltage 3.3 V What are the input currents of TPS62840 at load currents of 0 µA and 10 µA?

    Best regards, Alex

  • Hello Alex,

    Please find the data below for Vout = 3.3V

    Vin

    Output Current

    Input Current

    3.3

    1.00E-07

    2.32E-07

    3.3

    1.26E-07

    2.60E-07

    3.3

    1.59E-07

    2.94E-07

    3.3

    2.00E-07

    3.30E-07

    3.3

    2.51E-07

    3.86E-07

    3.3

    3.16E-07

    4.48E-07

    3.3

    3.98E-07

    5.34E-07

    3.3

    5.01E-07

    6.30E-07

    3.3

    6.31E-07

    7.66E-07

    3.3

    7.94E-07

    9.29E-07

    3.3

    1.00E-06

    1.13E-06

    3.3

    1.26E-06

    1.39E-06

    3.3

    1.58E-06

    1.71E-06

    3.3

    2.00E-06

    2.12E-06

    3.3

    2.51E-06

    2.65E-06

    3.3

    3.16E-06

    3.30E-06

    3.3

    3.98E-06

    4.12E-06

    3.3

    5.01E-06

    5.14E-06

    3.3

    6.31E-06

    6.44E-06

    3.3

    7.94E-06

    8.08E-06

    3.3

    1.00E-05

    1.01E-05

    Vin

    Output Current

    Input Current

    4

    1.00E-07

    1.77E-07

    4

    1.26E-07

    1.99E-07

    4

    1.59E-07

    2.31E-07

    4

    2.00E-07

    2.66E-07

    4

    2.51E-07

    3.14E-07

    4

    3.16E-07

    3.76E-07

    4

    3.98E-07

    4.51E-07

    4

    5.01E-07

    5.46E-07

    4

    6.31E-07

    6.66E-07

    4

    7.94E-07

    8.17E-07

    4

    1.00E-06

    1.01E-06

    4

    1.26E-06

    1.25E-06

    4

    1.58E-06

    1.55E-06

    4

    2.00E-06

    1.93E-06

    4

    2.51E-06

    2.41E-06

    4

    3.16E-06

    3.01E-06

    4

    3.98E-06

    3.77E-06

    4

    5.01E-06

    4.73E-06

    4

    6.31E-06

    5.93E-06

    4

    7.94E-06

    7.45E-06

    4

    1.00E-05

    9.36E-06

    Vin

    Output Current

    Input Current

    5

    1.00E-07

    1.49E-07

    5

    1.26E-07

    1.71E-07

    5

    1.59E-07

    1.94E-07

    5

    2.00E-07

    2.20E-07

    5

    2.51E-07

    2.58E-07

    5

    3.16E-07

    3.07E-07

    5

    3.98E-07

    3.68E-07

    5

    5.01E-07

    4.49E-07

    5

    6.31E-07

    5.37E-07

    5

    7.94E-07

    6.56E-07

    5

    1.00E-06

    8.06E-07

    5

    1.26E-06

    9.92E-07

    5

    1.58E-06

    1.23E-06

    5

    2.00E-06

    1.53E-06

    5

    2.51E-06

    1.91E-06

    5

    3.16E-06

    2.39E-06

    5

    3.98E-06

    2.99E-06

    5

    5.01E-06

    3.74E-06

    5

    6.31E-06

    4.69E-06

    5

    7.94E-06

    5.89E-06

    5

    1.00E-05

    7.40E-06

    Vin

    Output Current

    Input Current

    6

    1.00E-07

    1.33E-07

    6

    1.26E-07

    1.53E-07

    6

    1.59E-07

    1.70E-07

    6

    2.00E-07

    1.97E-07

    6

    2.51E-07

    2.24E-07

    6

    3.16E-07

    2.71E-07

    6

    3.98E-07

    3.17E-07

    6

    5.01E-07

    3.77E-07

    6

    6.31E-07

    4.64E-07

    6

    7.94E-07

    5.61E-07

    6

    1.00E-06

    6.88E-07

    6

    1.26E-06

    8.39E-07

    6

    1.58E-06

    1.04E-06

    6

    2.00E-06

    1.29E-06

    6

    2.51E-06

    1.61E-06

    6

    3.16E-06

    2.00E-06

    6

    3.98E-06

    2.51E-06

    6

    5.01E-06

    3.15E-06

    6

    6.31E-06

    3.94E-06

    6

    7.94E-06

    4.95E-06

    6

    1.00E-05

    6.21E-06

    Vin

    Output Current

    Input Current

    6.5

    1.00E-07

    1.29E-07

    6.5

    1.26E-07

    1.40E-07

    6.5

    1.59E-07

    1.58E-07

    6.5

    2.00E-07

    1.81E-07

    6.5

    2.51E-07

    2.16E-07

    6.5

    3.16E-07

    2.48E-07

    6.5

    3.98E-07

    3.03E-07

    6.5

    5.01E-07

    3.56E-07

    6.5

    6.31E-07

    4.31E-07

    6.5

    7.94E-07

    5.21E-07

    6.5

    1.00E-06

    6.32E-07

    6.5

    1.26E-06

    7.78E-07

    6.5

    1.58E-06

    9.65E-07

    6.5

    2.00E-06

    1.20E-06

    6.5

    2.51E-06

    1.49E-06

    6.5

    3.16E-06

    1.86E-06

    6.5

    3.98E-06

    2.33E-06

    6.5

    5.01E-06

    2.91E-06

    6.5

    6.31E-06

    3.66E-06

    6.5

    7.94E-06

    4.58E-06

    6.5

    1.00E-05

    5.75E-06

    Can you please provide me the customer information, end equipment and business opportunity.

    Thank you & regards,

    Moheddin. 

  • Hello, Moheddin,

    The recommended input voltage for the TPS62840 is 1.8 - 6.5 V. How long can 6.6 V, 6.8 V be supplied to the input without compromising reliability?

    Best regards, Alex

  • Hello Alex,

    TI recommend to operated the device as per the recommended operating condition as mentioned below.

    Operating the device between the maximum rating of the recommended condition and absolute maximum ratings would affect the device reliability.

    Can you please provide me the customer information, end equipment and business opportunity.

    Thank you & regards,

    Moheddin. 

  • Hello, Moheddin,

    The designed device is a battery-powered video camera. New batteries create a voltage of 6.5 - 6.6 V. In principle, the voltage can be up to 6.8 V. Most of the time the device is in sleep mode. This mode requires minimal power consumption. What input current will be at a load current of 10 µA and an input voltage of 6.5 V to 6.8 V? Is it possible to use TPS62840 to stabilize voltage?

    Best regards, Alex

  • Hello Alex,

    Thank you for providing the information.

    What input current will be at a load current of 10 µA and an input voltage of 6.5 V to 6.8 V?

    The requested data is already provided before in the previous reply which is with input voltage of 6.5V and Vout = 3.3V. Currently I don't have data with Vin = 6.8V but I can measure in the EVM and provide you and as i said before.

    Operating the device between the maximum rating of the recommended condition and absolute maximum ratings would affect the device reliability.

    Thank you & regards,

    Moheddin.