LTC3860_15 Datasheet, PDF (19/36 Pages) Linear Technology – Dual, Multiphase Step-Down Voltage Mode DC/DC Controller with Current Sharing

APPLICATIONS INFORMATION
V_SNSOUT1 V_CC
0, 120
CLKIN CLKOUT
PHSMD
FB1
FB2 LTC3860
I_LIM2
COMP1
I_LIM1
COMP2
I_AVG TRACK/SS1,2
V_CC
+240
240, 60
CLKIN CLKOUT
PHSMD TRACK/SS2
FB1
FB2 LTC3860
I_LIM2
COMP1
I_LIM1
COMP2
I_AVG TRACK/SS1
LTC3860
V_SNSOUT2
3960 F07a
V_SNSOUT1 V_CC
0, 180
CLKIN CLKOUT
PHSMD
FB1
FB2 LTC3860
I_LIM2
I_LIM1
COMP1
COMP2
I_AVG TRACK/SS1,2
V_CC
+90
90, 270
CLKIN CLKOUT
PHSMD
FB1
FB2 LTC3860
I_LIM2
I_LIM1
COMP1
COMP2
I_AVG TRACK/SS1,2
3960 F07b
Figure 7a. 3-Phase Operation
Figure 7b. 4-Phase Operation
V_SNSOUT1
V_CC
0, 180
CLKIN CLKOUT
PHSMD
FB1
FB2 LTC3860
I_LIM2
COMP1
I_LIM1
COMP2
I_AVG TRACK/SS1,2
V_CC
+60
60, 240
CLKIN CLKOUT
PHSMD
FB1
FB2 LTC3860
I_LIM2
COMP1
I_LIM1
COMP2
I_AVG TRACK/SS1,2
V_CC
+60
120, 300
CLKIN CLKOUT
PHSMD
FB1
FB2 LTC3860
I_LIM2
COMP1
I_LIM1
COMP2
I_AVG TRACK/SS1,2
3960 F07c
Figure 7c. 6-Phase Operation
V_SNSOUT1
V_CC
0, 180
V_CC
60, 240
V_CC
120, 300
CLKIN CLKOUT ⁺⁶⁰
CLKIN CLKOUT ⁺⁶⁰
CLKIN CLKOUT ⁺⁹⁰
PHSMD
PHSMD
PHSMD
FB1
FB1
FB1
FB2 LTC3860
FB2 LTC3860
FB2 LTC3860
I_LIM2
COMP1
I_LIM1
COMP2
I_AVG TRACK/SS1,2
I_LIM2
COMP1
I_LIM1
COMP2
I_AVG TRACK/SS1,2
I_LIM2
COMP1
I_LIM1
COMP2
I_AVG TRACK/SS1,2
V_CC
210, 30
CLKIN CLKOUT
PHSMD
FB1
FB2 LTC3860
I_LIM2
I_LIM1
COMP1
COMP2
I_AVG TRACK/SS1,2
V_CC
+60
270, 90
CLKIN CLKOUT
PHSMD
FB1
FB2 LTC3860
I_LIM2
I_LIM1
COMP1
COMP2
I_AVG TRACK/SS1,2
V_CC
+60
330, 150
CLKIN CLKOUT
PHSMD
FB1
FB2 LTC3860
I_LIM2
I_LIM1
COMP1
COMP2
I_AVG TRACK/SS1,2
3960 F07d
Figure 7d. 12-Phase Operation
3860fc
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