PSoC 4000 Family: PSoC 4 Architecture TRM, Document No. 001-89309 Rev. *D 61
9. Power Supply and Monitoring
PSoC
®
4 is capable of operating from a 1.71 V to 5.5 V externally supplied voltage. This is supported through one of the two
following operating ranges:
■ 1.80 V to 5.50 V supply input to the internal regulators
■ 1.71 V to 1.89 V
1
direct supply
There are different internal regulators to support the various power modes. These include Active digital regulator, Quiet regu-
lator, and Deep-Sleep regulator.
1. When the system supply is in the range 1.80 V to 1.89 V, both direct supply and internal regulator options can be used. The selection can be made depending
on the user’s system capability. Note that the supply voltage cannot go above 1.89 V for the direct supply option because it will damage the device. It should
not go below 1.80 V for the internal regulator option because the regulator will turn off.
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