The S3REG104HVT18 is a regulator circuit which has been
designed to provide 3.3V with a load current of up to 10mA. The
output voltage is programmable.
The S3REG104HVT18 is a regulator circuit that features an
automatic feedback sensing option to maintain a constant
regulated output voltage level. It has been designed to provide
a stable output in both low-drop and high-drop operation, while
maintaining minimum ripple on supply lines in the presence of
large load current spikes inherent with switching loads, e.g.
The S3REG104HVT18 has been designed to allow low-drop
operation (the LDPMOS pass device has been scaled for a
voltage drop of 600mV). To achieve these goals, the
S3REG104HVT18 requires a 1uF external ceramic capacitor.
The S3REG104HVT18 uses 32V LDMOS oxide devices from
the 180nm high voltage process. The circuit can be scaled for
a range of load currents and the output voltage level is
For maximum flexibility, the user can adjust the regulated output
voltage if the S3REG104HVT18 is placed on a different chip.
The S3REG104HVT18 is readily portable to other
manufacturing processes or can be customised for specific