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LTM4677 Datasheet(PDF) 20 Page - Linear Technology

Part # LTM4677
Description  PolyPhase Step-Down Synchronous Slave Controller with Sub-Milliohm DCR Sensing
PDF  22 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTM4677 Datasheet(HTML) 20 Page - Linear Technology

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LTC3874-1
20
38741f
For more information www.linear.com/LTC3874-1
applicaTions inForMaTion
Figure 8. High Efficiency 500kHz 4-Phase 1.05V Step-Down Converter
3874 F08
100k
4.7µF
FREQ
LTC3874-1
ITH0
ITH1
ITH
RUN0
RUN1
FAULT0
FAULT1
SYNC
MODE1
MODE0
PHASM0
ILIM
LOWDCR
PWM0
VCC0
VCC1
VDD33
GND
VIN
VIN
7V TO 14V
VIN
7V TO 14V
INTVCC
47pF
VIN IIN+ IIN– INTVCC
PWM0
PWM1
WP
TSNS0
TSNS1
SDA
VCC1
SCL
SHARE_CLK
ALERT
FAULT0
VDD33
VSENSE0+
VOUT
VSENSE1+
VSENSE0–
VSENSE1–
ISENSE0+
ISENSE0–
ISENSE1–
ISENSE1+
VDD33
VCC0
FAULT1
RUN0
RUN1
PGOOD0
EXTVCC
PHAS_CFG
PGOOD1
SYNC
LTC3884-1
PINS NOT USED IN CIRCUITS TDA21470: REFIN , GATEL, IOUT, OCSET
COUT1, 3, 5, 7:
COUT2, 4, 6, 8:
L1, L2, L3, L4:
MURATA GRM32ER60J107ME20L (100µF, 6.3V, X5R, 1210)
PANASONIC ETPF470M5H (470µF, 2.5V)
EATON FP1007R3-R22-R (0.215µH, DCR = 0.29m)
VDR IS FROM EXTERNAL 5V POWER SUPPLY
PIN NOT USED IN CIRCUIT LTC3884-1: ASEL1
PIN NOT USED IN CIRCUIT LTC3874-1: EXTVCC
GND
BOOT
PHASE
VIN
EN
SW
VOS
PWM
VDRV
TOUT/FLT
PGND
LGND
VCC
TDA21470
22µF
×4
VIN1
4.7µF
4.7µF
VDR
5V
0.47µF
0
COUT5
100µF
×3
6.3V
COUT6
470µF
×2
2.5V
0.215µH, L3
330pF
649
BOOT
PHASE
VIN
EN
SW
VOS
PWM
VDRV
TOUT/FLT
PGND
LGND
VCC
TDA21470
22µF
×4
VIN1
4.7µF
4.7µF
VDR
5V
0.47µF
0
COUT7
100µF
×3
6.3V
COUT8
470µF
×2
2.5V
0.215µH, L4
330pF
649
BOOT
PHASE
VIN
EN
SW
VOS
PWM
VDRV
TOUT/FLT
PGND
LGND
VCC
TDA21470
22µF
×4
VIN1
4.7µF
4.7µF
VDR
5V
0.47µF
0
COUT3
100µF
×3
6.3V
COUT4
470µF
×2
2.5V
0.215µH, L2
330pF
649
BOOT
PHASE
VIN
EN
SW
VOS
PWM
VDRV
TOUT/FLT
PGND
LGND
VCC
TDA21470
22µF
×4
VIN1
4.7µF
4.7µF
VDR
5V
0.47µF
0
COUT1
100µF
×3
6.3V
COUT2
470µF
×2
2.5V
VOUT
1.05 V
120A
0.215µH, L1
330pF
649
ISENSE1+
ISENSE1–
ISENSE0+
ISENSE0–
PWM1
0.1µF
5k
5k
5k
5k
5k
5k
5k
5k
2
4.7µF
10nF
10nF
2.2µF
1
1m
VIN1
ITH0
ITH1
ITH
ITHR0
ITHR1
VDD25
VOUT 0_CFG
VOUT 1_CFG
ASEL0
FREQ_CFG
6.8nF
330pF
24.9k
20k
24.9k
7.32k
17.8k
5.76k
1µF
220nF
220nF
1µF
220nF
220nF
4.7µF
+
+
+
+



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