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LTC3769_15 Datasheet, PDF (10/32 Pages) Linear Technology – 60V Low IQ Synchronous Boost Controller | |||
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LTC3769
Block Diagram
FREQ
20µA
VCO CLK
PFD
OVMODE
PLLIN/
5M
MODE
100k
ILIM
VBIAS
EXTVCC
5.4V
LDO
EN
+
4.8V â
SYNC
DET
CURRENT
LIMIT
5.4V
LDO
EN
INTVCC
SHDN
â+
3.8V
SGND
S
RQ
SHDN
BOOST
INTVCC
DB
TG
CB
SWITCHING
LOGIC
AND
CHARGE
PUMP
SW
INTVCC
BG
0.425V +
â
SLEEP
PGND
ICMP â +
2.8V
0.7V
SLOPE COMP
+
+â
IREV
â
2mV
SENSE â
SENSE+
L
RSENSE
SENS LO
2.3V
VFB
EA
1.2V
SS
VOUT
COUT
VIN
CIN
0.5µA/
4.5µA
11V
SHDN
RUN
SENS
LO
OV
10µA 1.32V +
â
VFB
SS
+
1.08V â
CSS
1.32V
ITH
PGOOD
3769 BD
CC
CC2
RC
3769f
10
For more information www.linear.com/LTC3769
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