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LTC3829 Datasheet(PDF) 48 Page - Linear Technology

Part # LTC3829
Description  Dual, Fast, Accurate Step-Down DC/DC Controller
PDF  54 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3829 Datasheet(HTML) 48 Page - Linear Technology

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LTC3838
48
3838fa
TYPICAL APPLICATIONS
Figure 18. 4.5V to 14V Input, 1.2V/50A 2-Phase Single Output, 300kHz, DCR Sense, DTR Enabled, Step-Down Converter
LOAD CURRENT (A)
0.1
50
80
90
100
110
3838 F18b
70
60
0
6
8
10
4
2
FORCED CONTINUOUS MODE
DISCONTINUOUS MODE
VIN = 12V
VOUT = 1.2V
EFFICIENCY
POWER
LOSS
LOAD CURRENT (A)
0.1
50
80
90
100
110
3838 F18c
70
60
0
6
8
10
4
2
FORCED CONTINUOUS MODE
DISCONTINUOUS MODE
VIN = 5V
VOUT = 1.2V
EFFICIENCY
POWER
LOSS
3838 F18
0.1μF
0.1μF
L2
0.36μH
L1
0.36μH
COUT4
100μF
2
COUT3
330μF
2
DB2
MT2
MB2
2.55k
+
LTC3838
2.2Ω
2.2Ω
10k
100k
35.7k
41.2k
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
VFB2
PGND
VOUTSENSE1
+
VOUTSENSE1
–
PGOOD1
PGOOD2
TRACK/SS1
ITH1
DTR1
VRNG1
TRACK/SS2
ITH2
DTR2
PHASMD
MODE/PLLIN
CLKOUT
RUN2
VRNG2
SGND
RUN1
RT
PGOOD
MB1
MT1
1μF
CIN2
22μF
4
+
CIN1
180μF
+
2.55k
CIN1: SANYO 16SVP180MX
CIN2: TDK C3225X5R1C226MT
COUT1, COUT4: MURATA GRM31CR60J107ME39L
COUT2, COUT3: SANYO 2R5TPE330M9
DB1, DB2: CENTRAL SEMI CMDSH-4ETR
L1, L2: VISHAY IHLP4040DZERR36M01
MT1, MT2: INFINEON BSC050NE2LS
MB1, MB2: INFINEON BSC010NE2LS



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