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LTC3891 Datasheet(PDF) 13 Page - Linear Technology

Part # LTC3891
Description  60V Low IQ, Triple Output, Buck/Buck/Boost Synchronous Controller
PDF  38 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3891 Datasheet(HTML) 13 Page - Linear Technology

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LTC3899
13
3899fa
For more information www.linear.com/LTC3899
FUNCTIONAL DIAGRAMS
BOOST1,2
DRVCC
TG1,2
TOP
BOT
BUCK CHANNELS 1 AND 2
S
CLK1
CLK2
PFD
SYNC
DET
VCO
Q
R
Q
BOT
SHDN
SLEEP
0.425V
TOP ON
SW1,2
BG1,2
DRVCC
GND
SENSE1,2+
SENSE1,2–
ITH1,2
TRACK/SS1,2
SHDN
RUN1,2
SHDN
RST
2(VFB)
FOLDBACK
10µA
VFB1,2
RA
RC
RB
CC
0.80V
TRACK/SS
0.88V
OV
CB
COUT
VIN1,2
VOUT1,2
RSENSE
L
SWITCHING
LOGIC
DROPOUT
DET
+
–
+
–
–
+
+
IR
3mV
ICMP
2.8V
0.65V
SLOPE COMP
+–
+–
CIN
+
–
CC2
CSS
3899 FD
150nA
3.5V
20µA
FREQ
PLLIN/MODE
100k
EA
INTVCC
LDO
DRVCC LDO/
UVLO CONTROL
4.7V/
7.7V
EN
EN
2.00V
1.20V
DRVSET
EXTVCC
VBIAS
DRVCC
20µA
4R
R
INTVCC



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