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TPS61089: transient simulation Tina-TI model

Part Number: TPS61089
Other Parts Discussed in Thread: TINA-TI, , TPS61288

Hi Team, 

Per customer request, I need to run simulation to see transient performance. I tried to use Webench but it cannot export the transient model and cannot update to customer's condition. So please kindly help share me the transient simulation circuit using Tina-TI or please kindly help simulate on below condition. Thanks. 

operation condition: Vin=3V, Vout=7V, Cout=44uf or 66uf.  

load condition: change between 0 - 3.5A, rising time 1ns,  falling time 1ns, period of 3.5A is 4us, one cycle time is 12us. 

customer want to see the Vout overshoot/undershoot regarding the load transient. Thanks. 



  • Hi Given,

    Thank you for reaching out.

    Is the input voltage a fixed 3V?

    I'm afraid TPS61089 doesn't have high enough current capability for this application. It will trigger the switch peak current limit spec. You could take a look at TPS61288, which have higher Ilimit spec.