US 12,015,343 B2
Apparatus, method and system for pulse pairing in a multi-output DC-DC converter
Hatem Osman, Austin, TX (US); Michael D. Mulligan, Austin, TX (US); and Mohamed Elkholy, College Station, TX (US)
Assigned to Silicon Laboratories Inc., Austin, TX (US)
Filed by Silicon Laboratories Inc., Austin, TX (US)
Filed on Nov. 30, 2021, as Appl. No. 17/537,815.
Prior Publication US 2023/0170799 A1, Jun. 1, 2023
Int. Cl. H02M 3/157 (2006.01); H02M 1/00 (2006.01)
CPC H02M 3/157 (2013.01) [H02M 1/0041 (2021.05)] 20 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a driver circuit having a first control input, a second control input and an output node coupled between a supply voltage node and a reference voltage node, the driver circuit to receive control pulses and output a plurality of current pulses in response to the control pulses, the driver circuit to provide a plurality of regulated voltages according to the control pulses;
a selection circuit coupled to the output node, wherein the selection circuit is to be controlled to output one or more of the plurality of current pulses to a selected one of a plurality of load nodes, each of the plurality of load nodes to provide at least one of the plurality of regulated voltages; and
an arbiter coupled to the selection circuit, wherein in a pulse pair mode, the arbiter is to control the selection circuit to direct a sequential pair of the plurality of current pulses to one of the plurality of load nodes.