SLVUC15 March   2021 TPS7H4001-SP

 

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1.1 Model Parameters

The following parameters are used within the model to define the internal characteristics, operating environment, and configuration of the device.

Parameter Description Default Model Value
Mean_GMea The mean value of the error amplifier transconductance 1800 µS
Mean_GMps The mean value of the power stage transconductance 40 S
Mean_Vref The mean value of the reference voltage 0.605 V
Tol_GMea The tolerance of the error amplifier transconductance [1] 8.72 %
Tol_GMps The tolerance of the power stage transconductance [1] 5.22 %
Tol_Vref The tolerance of the reference voltage [1] 0.31 %
TID The Total Ionizing Dose the device is subjected to, within the range of 0 to 100 krad 0 krad
AGING

Binary value indicating the presence of aging effects, where:

0 = No aging effects added

1 = Aging effects added

0
L Output inductor value 0.9 µF
FS Switching frequency 500 kHz
TEMP Operating temperature, which is set within the simulation profile and takes the default value unless otherwise specified. 27°C

[1] For Gaussian distributions, tolerance is defined as the standard deviation (1-sigma) divided by the mean and is expressed as a percentage.

In addition to the listed model parameters, external component selection will also influence device behavior. The external components used in the default schematic take nominal values and, as such, users may see fit to add tolerances to them to model real-world variation.