SLVSF07 July 2021 TPS7H5001-SP
The device generates an internal 1.23-V bandgap reference that is utilized throughout the various control logic blocks. This is the voltage present on the REFCAP pin during steady state operation. This voltage is divided down to 0.613 V to produce the reference for the error amplifier. The error amplifier reference is measured at the COMP pin to account for offsets in the error amplifier and maintains regulation within ±1% across line, load, temperature, and TID as shown in Section 6. This tight reference tolerance allows for the user to design a highly accurate power converter. A 470-nF capacitor to ground is required at the REFCAP pin for proper electrical operation as well as to ensure robust SET performance of the device.