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2022-09-24 23:32:00
SP6680EU - Evaluation Board Manual
Features ■ Ideal for cellular phone SIM card applications ■ Low profile, inductor regulator ■ Up to 96% power efficiency ■ 2.7 V to 6.3 V input voltage range ■ 5.8V output voltage ■ 60 mA output current ■ 75 μA quiescent Current ■4μA shutdown current ■External 32.768kHz clock input ■Three programmable charge pump frequencies: 8.192kHz, 32.768KHZ, and 262.14kHz
■ Internal oscillator, at 16.7kHz, when CLK pin is held high ■ Space saving 10-pin μSOIC package
The SP6680 is a 3.6 V Li-Ion battery input that converts an ideally regulated output of a +5.0 V charge pump. An input voltage range of 2.7 V to 6.3 V translates to a regulated output of 5.8V. The SP6680 device will operate at three different switching frequencies corresponding to three different output resistance and load current ranges. An external 32.768kHz nominal clock signal is used to generate the charge pump by using three synchronous pump frequencies to internally cycle the drive. Two control inputs can adjust the pump's internal frequency on the fly to 8.192kHz (fINPUT/4), 32.768kHz (fINPUT × 1), or 262.14kHz (fINPUT × 8). Dynamic change of charge pump configuration to optimize power efficiency. At low input voltage the charge pump doubles the input, while at higher input the output is 1.5 times the input. The SP6680 can deliver high power efficiency up to 96% with low quiescent current from 75µA to 800µA. The SP6680 is available in a 10-pin μSOIC package.