Average current mode PFC controller for compact power supplies
The Analog Devices ADP1047ARQZ-R7 is an average current mode power factor correction (PFC) controller designed for AC-DC power supplies needing high power factor and low THD. It operates from a 3 V to 3.6 V supply rail and switches at frequencies from 30 kHz to 400 kHz, covering a wide range of magnetic and filter design trade-offs. The industrial temperature range of -40°C to 85°C suits it for outdoor telecom rectifiers, factory-floor power supplies, and base-station PFC stages where the controller sits on the secondary-side bias rail.
Package and footprint — 24-QSOP / 24-SSOP
The ADP1047ARQZ-R7 is supplied in a 24-QSOP package. The supplier device package is 24-QSOP, a narrow-body SSOP footprint common for mixed-signal controllers.
Switching frequency range — design flexibility
The 30 kHz to 400 kHz switching range covers low-EMI and compact-magnetic design targets.
Lifecycle and compliance — active, no EOL watch needed
For a BOM line that needs a PFC controller with a stable supply outlook, this part carries no imminent obsolescence risk. The ROHS3 compliance covers EU and global environmental requirements without exemption concerns.