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LTC3884 Datasheet(PDF) 23 Page - Analog Devices

Part # LTC3884
Description  Quad Output PolyPhase Step-Down DC/DC Voltage Mode Controller with Digital Power System Management
PDF  26 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LTC3884 Datasheet(HTML) 23 Page - Analog Devices

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LTC7883
23
Rev. 0
For more information www.analog.com
TYPICAL APPLICATIONS
Figure 1. High Density 1.5V/120A 500kHz 4-Phase Converter Using Quad Power Block
+CS1
–CS1
+CS2
–CS2
+CS3
–CS3
+CS4
–CS4
VIN
+7V
VIN 12V
VINSA
VDD25A
GND
VDD33A
PWMA1
CSA1P
VSNSA0M
VSNSA0P
PWMA0
PGB1
PGA1
PWMB1
PWMB0
0.01µF
×4*
VDR 7V
VINSB
CSA1M
CSA0P
CSB1P
CSB0P
2.2µF
100k
CSA0M
CSB1M
CSB0M
100pF
4.99k
2k
N
N
N
121k
TSNSA0
PGA0
PGB0
VDD33B
VDD25B
2.2µF
FBA0
COMPA0
18pF
10nF
470pF
180pF
N
220µF
10×
VSNSA1P
VSNSB1P
VSNSB0P
FBA1
FBB1
FBB0
VOUT
VSNSA1M
VSNSB1M
VSNSB0M
COMP
COMPB1
COMPA1
COMPB0
10k
IAVGA1
IAVGA0
IAVGB1
IAVGB0
IAVGNDA/B
2
100pF
VCCA
VCCB
0.1µF
RUNB0
RUNA1
RUNA0
RUNB1
10k
RUN
ASEL1A/B
ASEL0A
ASEL0B
FCFGA/B
PCFGA/B
VO[A/B][1:0]CFG
2
2
2
4
TSNSA1
TSNSB1
TSNSB0
16.2k
20.5k
17.4k
2.74k
2.74k
16.2k
SEE FIGURE 2 FOR PMBus
AND SHARED PSM PIN DETAILS
*1 PER PHASE
THREE ADDITIONAL
IDENTICAL POWER
STAGES AND
EXTERNAL
CS FILTER
NETWORKS (N)
DS12S18R140D
VOUT
1.5V
120A
LTC7883
Q1
4.12k
60.4k
7883 F01
2.2µF
1µF
1µF
VDD33
VDD25
VDD25
VDD33
COMP
VDD33
VDD33
VDD33
+
100µF
2×
22µF
4×



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