ParameterSpecificationDeviceBQ25619 – I²C-controlled 1‑cell battery charger with Power-Path management and integrated boost converterCharge CurrentUp to 3 A buck-mode charge; boost operation up to 1.2 AEfficiency≈92% in both charge (2 A from 5 V input) and boost (1 A output) modesInput Voltage Range4 V–13.5 V (supports USB, adapters, wireless); absolute max 22 VBoost Output Voltage4.6 V to 5.15 VVIN Current Limit (IINDPM)Programmable via I²C: 100 mA to 3.2 A in 100 mA stepsTermination Current20 mA ±10 mA accuracyCharge Regulation Accuracy±0.5% on charge voltage (10 mV steps)Quiescent Leakage10 µA during standby; 3 µA in ship modeBattery Leakage in Ship Mode7 µAProtection FeaturesBattery FET control (“ship mode”), soft-start for capacitive loads up to 500 µF, over-voltage/over-current protectionsSwitching Frequency1.5 MHz synchronous buck chargerPower-Path (NVDC)Supports instant-on bypass and deep discharge operationInterfacesI²C control (charge/boost, current limits, JEITA profiles); PMID_GOOD output
