LTC3773 Datasheet, PDF (29/32 Pages) Linear Technology – Triple Output Synchronous 3-Phase DC/DC Controller with Up/Down Tracking

LTC3773
APPLICATIONS INFORMATION
10Ω
10Ω
POWER DOWN V_OUT1
POWER DOWN V_OUT2
39 38
V_OUT1
47.5k
0.01μF
1500pF _15k
100pF
1 _TRACK1
2 _VFB1
3 _ITH1
4 _SGND
1500pF 330pF
6.8k
15k
20k
5 _ITH2
6 _ITH3
7 _VFB2
8 _VFB3
9 _TRACK2
20k
V_OUT2
10k
10k
10 _TRACK3
11 _SENSE2–
12 _SENSE2+
1nF
37 36 35 34
LTC3773
10k
PGOOD
33 32
BOOST1 ³¹
TG1 ³⁰
SW1 ²⁹
SW2 ²⁸
TG2 ²⁷
BOOST2 ²⁶
BOOST3 ²⁵
TG3 ²⁴
SW3 ²³
BG1 ²²
BG2 ²¹
V_DR ²⁰
CMDSH-3
0.1μF
0.1μF
CMDSH-3
0.1μF
CMDSH-3
V_5V
4.5V TO 6V
10μF
25V
x6
+
HAT2168H
V_IN
4.5V TO 22V
C_IN
56μF
25V
x5 _L1
1μH
HAT2165H
V_IN
B340B
3mΩ
+
C_OUT1
330μF
4V
x2
HAT2168H
HAT2165H
L2
0.6μH
3mΩ
B340B
V_OUT1
2.5V/15A
47μF
V_OUT2
1.8V/30A
V_IN
HAT2168H
L3
0.6μH
3mΩ
+
C_OUT2
330μF
2.5V
x4
47μF
x2
1nF
10Ω
10Ω
13 14 15 16 17 18 19
1nF
CLKOUT
10Ω
10Ω
+
CLKIN
10μF
10k
0.1μF CONTINUOUS
MODE FOR
TRACKING
1μF ^2Ω
HAT2165H
+
10μF
B340B
L1: PULSE PG0006.102
L2, L3: PULSE PG0006.601
C_OUT1: SANYO POSCAP 4TPD330M
C_OUT2: SANYO POSCAP 2R5TPE330M9
3773 F11
Figure 11. 3-Phase, Dual Output with Coincident Output Tracking Function
3773fb
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