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About Boost IC Spec Question

Wen Yung
Expert 1220 points
Other Parts Discussed in Thread: TPS61178

Hi Sir,

1. May I know TI's boost IC why use trans-conductance amplifier? looks our competitor usually use Voltage gain amplifier.

2. May I know how to calculate boost IC maximum duty cycle?  looks d/s almost not show information. such as tps61178.

  • 0
    TI__Mastermind 46905 points

    1. using trans-conductance type, the modeling of the control loop is easier.
    2. in TPS61178, the minimum off time is 180nS. if setting switching frequency to 500KHz, the maximum duty cycle is 91%, which is higher if setting lower switching frequency.