US 12,228,997 B2
Flexible and optimized power management unit (PMU) for multiple power supply scenarios
Radhika Venkatasubramanian, Austin, TX (US); Stephen W. Dow, Austin, TX (US); Prasad Rao Kotra, Bangalore (IN); Victor Simileysky, San Jose, CA (US); Ataur Rehman Khan, Saratoga, CA (US); David Moeller, Austin, TX (US); and Brian Ballweber, Austin, TX (US)
Assigned to Cypress Semiconductor Corporation, San Jose, CA (US)
Filed by Cypress Semiconductor Corporation, San Jose, CA (US)
Filed on Oct. 11, 2023, as Appl. No. 18/379,022.
Application 18/379,022 is a continuation of application No. 17/689,711, filed on Mar. 8, 2022, granted, now 11,815,981.
Prior Publication US 2024/0111356 A1, Apr. 4, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 1/3296 (2019.01); G06F 1/26 (2006.01); G06F 1/28 (2006.01); G06F 1/30 (2006.01)
CPC G06F 1/3296 (2013.01) [G06F 1/263 (2013.01); G06F 1/28 (2013.01); G06F 1/305 (2013.01)] 19 Claims
OG exemplary drawing
 
18. A power management subsystem integrated circuit (IC) coupled to one or more power supplies, the power management subsystem IC comprising:
a first switching regulator coupled to a first set of terminals;
a second switching regulator coupled to a second set of terminals, wherein the second set of terminals is grounded when the first switching regulator is operating, and wherein the first set of terminals is grounded when the second switching regulator is operating.