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NCP1417 Datasheet(PDF) 4 Page - ON Semiconductor

Part No. NCP1417
Description  200 mA DC-DC Step-up Converter with Dual Low Battery Protection
Download  16 Pages
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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NCP1417 Datasheet(HTML) 4 Page - ON Semiconductor

 
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NCP1417
http://onsemi.com
4
Figure 2. Simplified Functional Diagram
CONTROL
LOGIC
_MAINSW2ON
_SYNSW2ON
_ZCUR
_PWGONCE
_CEN
_PFM
ZLC
+
CHIP
ENABLE
PFM
+
VOLTAGE
REFERENCE
_VREFOK
REF
LBI/SHDN
FB
VDD
GND
M1
SenseFET
M2
VDD
LX
OUT
GND
VOUT
VBAT
_MAINSWOFD
ILIM
+
_SYNSWOFD
GND
+
VDD
GND
+
+
VREF
0.8 x VREF
30 mV
CP2
30 mV
CP1
GND
LBO1
GND
LBO2
+
20 mV
_ILIM
1
4
2
7
8
6
5
3


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