CP2126 converter equivalent, white led step-up converter.
Inherently matched LED current High efficiency: 85% typical Drives up to four LEDs from a 3.2V supply 20V stable bipolar switch Fast 900KHz switching frequency Uses tiny .
Cellular phones Digital Cameras MP3 Players PDAs、Handheld computers GPS Receivers
TYPICAL APPLICATION
VIN
L1 22uH D1 Vo.
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