SP6642EU Просмотр технического описания (PDF) - Signal Processing Technologies
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SP6642EU Datasheet PDF : 16 Pages
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VBATT
FB
VREF
TIMING
T-ON
T-OFF
EN LOGIC DRV-P
P
DRV-N
VOUT
SHDN
VREF
VREF
0.5VREF
VOUT
1.9V
0.5VREF
PFI
START
UP
OSC
N
LX
N
PFO
SP6642
Figure 20. Internal Block Diagram of the SP6642
0.85V to
1.65V Input
22µF
0.1µF
100µH
350mA
VBATT
LX
PFI
OUT
SP6642
0.1µF
22µF
+3.3VOUT
SHDN
GND
FB
PFO
Figure 21. SP6642 +3.3V Typical Application Circuit
Rev. 10-6-00
SP6642/6643 High Efficiency Step-Up DC-DC Converter
11
© Copyright 2000 Sipex Corporation
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