STBC03 Datasheet, PDF (17/34 Pages) STMicroelectronics – Li-Ion linear battery charger with LDO and load switches

STBC03
Figure 15: VBAT to VSYS drop and VSYS to VLDO
drop (10 mA)
Typical performance characteristics
Figure 16: VBAT to VSYS drop and VSYS to VLDO
drop (100 mA)
LDO loaded by 10 mA; VODC cut-off
CH1 (blue) = VLDO 400 mV/div
CH2 (red) = VSYS 400 mV/div
CH3 (green) = VBAT 400 mV/div
CH4 (pink) = ILDO 10 mA/div
Figure 17: CEN operation
LDO loaded by 100 mA; VODC cut-off
CH1 (blue) = VLDO 400 mV/div
CH2 (red) = VSYS 400 mV/div
CH3 (green) = VBAT 400 mV/div
CH4 (pink) = ILDO 20 mA/div
Figure 18: CEN operation, VIN plug/unplug
CH1 (blue) = CEN 3 V/div
CH3 (green) = VBAT 800 mV/div
CH4 (pink) = IBAT 20 mA/div
CH1 (blue) = IN pin 3.0 V/div
CH3 (green) = CEN 2.0 V/div
CH4 (pink) = IBAT 30 mA/div
DocID029927 Rev 2
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