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Texas Instruments announces world’s smallest 1.1-A Li-Ion linear battery charger


Texas Instruments announced today world’s smallest 1.1-A Li-Ion linear battery charger with integrated 50-mA low-dropout regulator to support mobile phones and other handheld electronics. The new bq25040 comes in a small 2 mm x 3 mm package, and can regulate voltage within one-percent accuracy from a USB port or AC adapter. The device’s integrated LDO allows a mobile application to power up instantly from an external power source, even with an empty or absent battery.


The Texas Instruments bq25040 also saves manufacturing time and cost by eliminating the need for battery setup during production test phase. The charger’s single-input interface selects the appropriate charge current and places the device into production test mode.