Voltage Regulators and Power Supplies RM0046
840/936 Doc ID 16912 Rev 5
The three dedicated supply domains are further divided within the package in order to
reduce EMI and noise as much as possible:
● HV_REG—High voltage regulator supply
● HV_IOn—High voltage PAD supply
● HV_OSC
(e)
—High voltage external oscillator and regulator supply
● HV_AD0—High voltage supply and reference for ADC module. Supplies are further
star routed to reduce impact of ADC resistive reference on ADC capacitive reference
accuracy.
● LV _ C O Rn—Low voltage supply for the core. It is also used to provide supply for PLL
and Flsah memory through double bonding.
e.Regulator ground is separated from oscillator ground and shorted to the LV ground through star routing.
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