STBC03 Li-Ion Linear Battery Charger STMicroelectronics STBC03 Li-Ion Linear Battery Charger is a highly integrated power management device that prevents the battery from being damaged under fault conditions. The STBC03 embedds a linear battery charger, a 150mA LDO, 2 SPDT load switches, and a protection circuit module (PCM). The STBC03 uses a CC/CV algorithm to charge the battery.