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Wireless charging technology featured new G4 smartphone

27th May 2015


Smartphone maker LG has integrated an Integrated Device Technology wireless power receiver into its flagship G4 model.

LG’s new G4 has IDT’s P9025A chip built into the motherboard, delivering compact size and a simplified application circuit. LG chose IDT as the sole-source vendor for the wireless charging capabilities in its latest state-of-the-art portable device. LG previously chose an IDT chip to deliver wireless charging in the prior generation G3 smartphone.

“The wireless power ecosystem is growing at breakneck speed as wireless charging gets closer to becoming a standard rather than a premium feature,” said Arman Naghavi, IDT’s vice president of Analog Power Technology. “At IDT, we have been working closely with leading innovators to deliver on the promise of wireless charging, integrating our chips into smartphones, wearables — even furniture — to make our portable devices easier to charge and more convenient to use.”

“IHS believes 2015 is proving to be a breakthrough year for wireless power as the number of applications featuring wireless charging increases dramatically,” said David Green, research manager for business information provider IHS. “We estimate 55 million receivers shipped in 2014, and that number will jump to almost 1.1 billion in 2018 and nearly 2.3 billion in 2024. So what we’re seeing now is just the tip of the iceberg.”

Part of IDT’s wireless power portfolio, the P9025A is a fully integrated, single-chip wireless power receiver that can support PMA, Qi or dual-mode charging. It utilises a high-efficiency low-dropout regulator (LDO)-based architecture to minimise component count. In addition, its optimised control logic minimises power losses to ensure efficient power delivery to the load. The space- and cost-optimised wireless power receivers are ideal for wireless handsets, cell phone sleeves, and tablets.







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