Datasheet Details
Part number:
SP6643
Manufacturer:
Sipex
File Size:
245.72 KB
Description:
Step-Up DC-DC Converter
Features
* 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, Step-Up DC-DC Converter
The SP6642/6643 devices are high-efficiency, low-power step-up DC-DC converters for +1V inputs ideal for single alkaline cell applications such as pagers, remote controls, and other low-power portable end products.
Designers can control the SP6642 device with a 1nA active LOW shutdown input.
The SP6
® 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 0.85V Guaranteed Start-Up s 83% High Efficiency s 1.5µA Quiescent Supply Current at V BATT s Reverse Battery Protection s Internal Synchronous Rectifier s 5nA Logic Controlled Shutdown Current From VBATT For The SP6642 s Low-Battery Detection Active LOW Output For The SP6643 s Extremely Small µSOIC Package s Pin-to-pin Compatible With M
SP6643 Distributor
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