US 11,815,981 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, Buda, 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 Mar. 8, 2022, as Appl. No. 17/689,711.
Prior Publication US 2023/0288979 A1, Sep. 14, 2023
Int. Cl. G06F 1/26 (2006.01); G06F 1/28 (2006.01); G06F 1/30 (2006.01); G06F 1/32 (2019.01); G06F 1/3296 (2019.01)
CPC G06F 1/3296 (2013.01) [G06F 1/263 (2013.01); G06F 1/28 (2013.01); G06F 1/305 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An integrated circuit comprising:
a first terminal to couple to an unregulated power supply;
a second terminal to couple to a regulated power supply;
a first regulator coupled to the first terminal and the second terminal;
a second regulator coupled to the second terminal, wherein the first regulator is to output a first supply voltage in a first configuration of the integrated circuit, and wherein the second regulator is to output a second supply voltage in a second configuration of the integrated circuit, wherein the first regulator and the second regulator do not operate concurrently;
a first set of terminals coupled to the first regulator, wherein the first set of terminals is grounded in the second configuration;
a second set of terminals coupled to the second regulator, wherein the second set of terminals and the first terminal are grounded in the first configuration.