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LTC7803 Datasheet(PDF) 13 Page - Analog Devices

Part # LTC7803
Description  40V, Low IQ, 3MHz, Triple Output Buck/Buck/Boost Synchronous Controller
PDF  44 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LTC7803 Datasheet(HTML) 13 Page - Analog Devices

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LTC7817
13
Rev 0
For more information www.analog.com
FUNCTIONAL DIAGRAM
ALLOFF
CLK1
CLK2
1.2V
VFB1
ALLOFF
ALLOFF
1.2V
ALLOFF
PLLIN/MODE
CLK1
VOUT3
INTVCC
2mV
RB
RA
CC2
CC1
RC
CIN
CB
L
RSENSE
COUT
CSS
12.5µA
100k
DB
2mV
R2
R1
CC4
RC3
COUT3
CB3
DB3
L3
RSENSE3
CIN3
CSS3
12.5µA
RA
RB
CC3
RUN
FREQ
ITH
VFB
SENSE–
SENSE+
PGND
SW
TG
BOOST
PLLIN/MODE
DROPOUT
DETECT
SWITCH
LOGIC
INTVCC
TOP
BOT
TOP ON
Q
S
R
EA
ICMP
IR
SLEEP
0.88V
0.425V
SLOPE COMP
0.8V
VIN1,2
VOUT1,2
VBIAS
INTVCC
EXTVCC
VBIAS LDO
EXTVCC LDO
TRACK/SS
ITH
CLAMP
1.4V
BG
INTVCC
BUCK CHANNELS 1 AND 2
EN
EN
4.7V
5.1V
OV
5.1V
0.88V
0.72V
PGOOD1
SGND
OSCILLATOR
AND PLL
RUN3
ITH3
VFB3
SENSE3+
SENSE3–
PGND
SW3
TG3
BOOST3
SWITCH
LOGIC
INTVCC
TOP
BOT
BOT ON
Q
S
R
EA
ICMP
IR
SLEEP
1.32V
0.425V
SLOPE COMP
1.2V
VOUT3
VIN3
SS3
7817 FD
ITH
CLAMP
1.4V
BG3
BOOST CHANNEL 3
OV
VPRG3
VPRG3
FLOAT
GND
INTVCC
ADJUSTABLE
8V FIXED
10V FIXED
VOUT3
CHARGE
PUMP



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