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LTC3880 데이터시트(PDF) 13 Page - Linear Technology

부품명 LTC3880
상세설명  Dual, Fast, Accurate Step-Down DC/DC Controller
PDF  54 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  LINER [Linear Technology]
홈페이지  http://www.linear.com
Logo LINER - Linear Technology

LTC3880 데이터시트(HTML) 13 Page - Linear Technology

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 13 / 54 page
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LTC3838
13
3838fa
FUNCTIONAL DIAGRAM
–
+
TG
BOOST
TG
DRV
VIN
UVLO
~0.8V
BG
PGND
SENSE+
SENSE–
TRACK/SS
BG DRV
EN_DRV
5μA
RUN
SW
EXTVCC
INTVCC
DRVCC2
DRVCC1
~4.6V
DB
DRVCC
CB
CINTVCC
CDRVCC
COUT
CSS
3838 FD
RFB2
RFB1
VOUT
VIN
MT
MB
L
RSENSE
–
+
–
+
4.2V
–
+
1.2V
250k
START
STOP
250k
SENSE–
VIN
–
+
–
+
–
+
1-2μA
PTAT
LOGIC
CONTROL
MODE/PLLIN
ONE-SHOT
TIMER
ON-TIME
ADJUST
ICMP
IREV
FORCED
CONTINUOUS
MODE
PHASE
DETECTOR
CLK1
CLK2
TO CHANNEL 2
MODE/CLK
DETECT
CLOCK PLL/
GENERATOR
DUPLICATE DASHED
LINE BOX FOR
CHANNEL 2
IN
LDO
EN
OUT SD
RT
RT
CLKOUT
PGOOD
INTVCC
RPGD
gm
gm
EA
0.6V
+
+
–
1μA
UV
–
+
–
+
DIFFAMP
(A = 1)
0.645V
VRNG
ITH
DTR
1/2 INTVCC
TO LOGIC
CONTROL
LOAD
RELEASE
DETECTION
0.555V
–
+
OV
DELAY
CITH2
CITH1
INTVCC
VOUTSENSE1+
VOUTSENSE1–
VFB2
SGND
CHANNEL 2 ONLY
RITH2
INTVCC
RITH1
INTVCC



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