* an active LOW output for low-battery conditions. Both devices contain a 0.8Ω synchronous rectifier, an oscillator, a 0.6Ω N-channel MOSFET power switch, an internal voltage reference, circuitry for pulse-frequency-modulation, and an under voltage comparator. The output voltage for the SP6642/6643 de
SP6643
Sipex
245.72 KB
Step-up dc-dc converter.
®
SP6642/6643
Single Alkaline Cell, High Efficiency Step-Up DC-DC Converter
s 20mA Output Current at 1.2V Input
s +2V to +5.5V Output Range
s 0.8.
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