MB3887 Datasheet, PDF (2/33 Pages) Fujitsu Component Limited. – DC/DC Converter IC for Charging Li-ion battery

MB3887
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• Output voltage setting using external resistor
: 1 cell to 4 cells
• High efficiency
: 96% (VIN = 19 V, Vo = 16.8 V)
• Wide range of operating supply voltages
: 8 V to 25 V
• Output voltage setting accuracy
: 4.2 V ± 0.74% (Ta = −10 °C to +85 °C , per cell)
• Charging current accuracy
: ±5%
• Built-in frequency setting capacitor enables frequency setting using external resistor only
• Oscillation frequency range
: 100 kHz to 500 kHz
• Built-in current detection amplifier with wide in-phase input voltage range : 0 V to VCC
• In standby mode, leave output voltage setting resistor open to prevent inefficient current loss
• Built-in standby current function
: 0 µA (standard)
• Built-in soft-start function independent of loads
• Built-in totem-pole output stage supporting P-channel MOS FET devices
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