公开(公告)号：US20240055991A1

公开(公告)日：2024-02-15

申请号：US18446332

申请日：2023-08-08

Applicant: QUALCOMM Incorporated

Inventor： Sunghyun PARK ,  Pavan Kumar RAMAKRISHNA ,  Roger BROCKENBROUGH

IPC: H02M3/158 ,  H02M3/157 ,  H03K3/037

CPC classification number: H02M3/158 ,  H02M3/157 ,  H03K3/037

Abstract: Techniques and apparatus for transitioning between various operating modes for a switched-mode power supply (SMPS) in a wireless local area network (WLAN) device powered by a coin cell battery in an effort to maintain performance and functionality of the WLAN device and efficiency of the SMPS. One example apparatus is an integrated circuit (IC) for power management. The IC generally includes: a first port for coupling to a battery and a first terminal of a capacitive element; a second port for coupling to a second terminal of the capacitive element; a SMPS having an input coupled to the first port; and a switch coupled between the second port and a reference potential node for the IC.