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LTC3823IGN Datasheet(PDF) 9 Page - Linear Technology

Part # LTC3823IGN
Description  Fast No RSENSE Step-Down Synchronous DC/DC Controller with Differential Output Sensing, Tracking and PLL
PDF  26 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3823IGN Datasheet(HTML) 9 Page - Linear Technology

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LTC3823
9
3823fd
FUNCTIONAL DIAGRAM
0.5V
0.6V
2.0V
0.5V
VRNG
–
+
–
+
–
+
ION
FCB
VIN
1μA
RON
VVON
IION
tON
= (10pF)
R
SQ
20k
ICMP
IREV
Q6
3.3μA
RUN
SWITCH
LOGIC
AND
ANTI-
SHOOT
THROUGH
BG
ON
FCNT
F
0.6V
OV
1
240k
Q1
Q2
1.5V
EXTERNAL TO CHIP
ITH
RC
CC1
EA
SS
Q4
VDIFFOUT
SGND
R2
(EXT)
R1
(EXT)
RUN
PGND
PGOOD
DRVCC
INTVCC
INTVCC
SW
TG
CB
VIN
CIN
BOOST
–
+
–
+
OV
UV
CVCC
VOUT
M2
M1
L1
COUT
DB
ITHB
VOUT
0.6V
4.8V
VON
RSENSE
(OPTIONAL)
SENSE+
SENSE–
SENSE+
SENSE–
BG
M2
*CONNECTION W/O
SENSE RESISTOR
SW
PGND
(0.5~2)
FOLDBACK
–
+
0.25V
TRACK/SS
FOLDBACK
DISABLED
AT START-UP
RUN
VFB
PLLIN
PLLFLTR
PLL-SYNC
VINSNS
Z0
Z1/SSENABLE
Z2
ZVCC
+
+
5V
REG
1.7μA
CSS
3823 FD
R
R
R
INTVCC
40k
VOUTSENSE–
VOUTSENSE+
40k
40k
40k



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