step-down dc-dc converter.
include integrated soft−start, cycle−by−cycle current limiting and thermal shutdown protection. The NCP1521B is available in a space saving, low profile TSOP5 package.
Fe.
powered from one cell Li−Ion or three cell Alkaline/NiCd/NiMH batteries. The part, available in adjustable output voltag.
Pin No. Pin Name
Type
1
VIN
Analog /
Power Input
2
GND
Analog /
Power Ground
3
EN
Digital Input
4
FB
Analog Input
5
LX
Analog Output
Description
Power supply input for the PFET power stage, analog and digital blocks. The pin must .
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