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LTC3880 Datasheet(PDF) 45 Page - Linear Technology

Part # LTC3880
Description  Fast, Accurate, 2-Phase, Single-Output Step-Down DC/DC Controller
PDF  50 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3880 Datasheet(HTML) 45 Page - Linear Technology

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LTC3839
45
3839fa
TYPICAL APPLICATIONS
Figure 18. 4.5V to 14V Input, 1.2V/50A Output, 300kHz, DCR Sense, DTR Enabled, Step-Down Converter
3839 F18a
0.1μF
0.1μF
L2
0.33μH
L1
0.33μH
COUT4
100μF
2
COUT3
330μF
2
DB2
MT2
MB2
2.55k
+
LTC3839
2.2Ω
2.2Ω
10k
100k
41.2k
47.5k
137k
VIN
1μF
0.1μF
4.7μF
0.1μF
0.01μF
47pF
470pF
COUT2
330μF
2
COUT1
100μF
2
VOUT
1.2V
50A
VIN
4.5V TO 14V
10k
SENSE1–
SENSE1+
BOOST1
TG1
SW1
SENSE2+
BOOST2
TG2
SW2
DRVCC1
INTVCC
DRVCC2
EXTVCC
DB1
SENSE2–
BG1
BG2
PGND
VOUTSENSE
+
VOUTSENSE
–
PGOOD
TRACK/SS
ITH
DTR
VRNG
SGND
RT
PGOOD
MB1
MT1
1μF
CIN2
22μF
4
+
CIN1
180μF
+
2.55k
CIN1: SANYO 16SVP180MX
CIN2: MURATA GRM32ER61C226KE20L
COUT1, COUT4: MURATA GRM31CR60J107ME39L
COUT2, COUT3: SANYO 2R5TPE330M9
DB1, DB2: CENTRAL SEMI CMDSH-4ETR
L1, L2: VISHAY IHLP5050CEERR33M01
MT1, MT2: INFINEON BSC050NE2LS
MB1, MB2: INFINEON BSC010NE2LS
PHASMD
MODE/PLLIN
CLKOUT
RUN
LOAD CURRENT (A)
0.1
80
90
100
1
10
100
3839 F18b
70
60
50
0
6
8
10
4
2
VIN = 12V
FORCED
CONTINUOUS
MODE
DISCONTINUOUS
MODE
LOSS
DCM
LOSS
FORCED CM
LOAD CURRENT (A)
0.1
80
90
100
1
10
100
3839 F18c
70
60
50
0
6
8
10
4
2
VIN = 5V
FORCED
CONTINUOUS
MODE
DISCONTINUOUS
MODE
LOSS
DCM
LOSS
FORCED
CM



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