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TPS62A01: control Scheme

Ruixin Feng
Intellectual 2375 points
Part Number: TPS62A01
Other Parts Discussed in Thread: TPS62821, TPS62824

Tool/software:

Hi team,

Is TPS62A01 COT control? There isn’t clear description in datasheet. Could you pls help to clarify here? Thanks!

Rayna

  • 0
    TI__Expert 6510 points

    Hi Ruixin,

    The TPS62A01 has no COT control, it has an adaptive off time with a peak current control.

    See data sheet:

    7.1 Overview

    The TPS62A0x is a high-efficiency synchronous step-down converter. The device operates with an adaptive off time with a peak current control scheme. The device operates typically at 2.4MHz frequency pulse width modulation (PWM) at moderate to heavy load currents. Based on the VIN/VOUT ratio, a simple circuit sets the required off time for the low-side MOSFET, making the switching frequency relatively constant regardless of the variation of the input voltage, output voltage, and load current.

    Best regards,

    Sepp

  • 0 in reply to Josef Marsmann
    TI__Intellectual 2375 points

    HI Sepp,

    do you have a recommendation for COT control device? Similar to TPS6201.thanks!

    Rayna

  • 0 in reply to Ruixin Feng
    TI__Expert 6510 points

    Hi Ruixin,

    please take a look to the TPS62821 and TPS62824 devices.

    Best regards,

    Sepp