LTC3731HG Linear Technology, LTC3731HG Datasheet - Page 29

• Manufacturer Part Number: LTC3731HG
• Description: IC REG SW SYNC 3PH STPDWN 36SSOP
• Manufacturer: Linear Technology
• Series: PolyPhase®r
• Type: Step-Down (Buck)r

Specifications of LTC3731HG

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.6 ~ 6 V
• Frequency - Switching: 225kHz ~ 680kHz
• Voltage - Input: 4 ~ 36 V
• Operating Temperature: -40°C ~ 140°C
• Mounting Type: Surface Mount
• Package / Case: 36-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Current - Output: -
• Power - Output: -
• Lead Free Status / Rohs Status: Not Compliant

Typical applicaTions
270pF
1.2k
2700pF
SYNC IN
I
TH
330pF
V
CC
NOTES:
V5: 5V TO 7V
V
SWITCHING FREQUENCY: 500kHz (V5 = 5V)
1000pF
1000pF
IN
V
100pF
0.1µF
4.64k
8.2k
3.3k
10k
IN
: 10V TO 14V; V
1k
68pF
0.01µF
357k
121k
S1
S1
S2
S2
S3
S3
S4
S4
S5
S5
S6
S6
+
–
+
–
–
+
+
–
+
–
–
+
14.7k
EAIN
10
10
UVADJ
RUN/SS
RUN/SS
OUT
6
6
: 2.5V/100A
1000pF
1000pF
1000pF
1000pF
1000pF
1000pF
100pF
10pF
EAIN
220pF
UVADJ
CLK1
V
V
CC
CC
1000pF
10
11
12
13
14
15
16
17
18
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
V
PLLIN
PLLFLTR
FCB
NC
NC
NC
EAIN
SGND
SENSE1
SENSE1
SENSE2
SENSE2
SENSE3
SENSE3
RUN/SS
I
UVADJ
V
PLLIN
PLLFLTR
FCB
NC
NC
NC
EAIN
SGND
SENSE4
SENSE4
SENSE5
SENSE5
SENSE6
SENSE6
RUN/SS
I
UVADJ
TH
TH
CC
CC
M1, M4, M7, M10, M13, M16:
SILICONIX Si7390DP OR HAT2168
M2, M3, M5, M6, M8, M9, M11, M12, M14, M15,
M17, M18: SILICONIX Si7356DP OR HAT2165
D1 TO D6: B320A
LTC3731HG
LTC3731HG
+
–
+
–
–
+
+
–
+
–
–
+
2.5V/100A Power Supply
PHASMD
PHASMD
CLKOUT
BOOST1
BOOST2
BOOST3
CLKOUT
BOOST4
BOOST5
BOOST6
PGOOD
PGOOD
SGND2
SGND2
PGND
PGND
SW1
SW2
SW3
SW4
SW5
SW6
BG1
BG2
BG3
BG4
BG5
BG6
TG1
TG2
V
TG3
TG4
TG5
V
TG6
DR
DR
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
CLK1
CLKOUT
V
CC
V
CC
1µF
Cer.
1µF
Cer.
0.1µF
0.1µF
PGOOD
+
+
0.1µF
0.1µF
0.1µF
0.1µF
1µF
4.7µF
4.7µF
10
1
PGOOD
10
10k
BOOST4
M1
X2
M2,3
M4
X2
M5,6
M7
X2
M8,9
M10
X2
M11,12
M13
X2
M14,15
M16
X2
M17,18
L1 TO L6: TOKO FDH1040: 0.56µH
C
C
IN
OUT
BOOST1
: 10µF/16V CERAMIC 10 + 270µF/16V SANYO Os-Con
: 100µF/6.3V/X5R 10 + 330µF/4V 8
BOOST5
V
V
IN
IN
V
V
V
V
BOOST2
IN
IN
IN
IN
D1
D2
D3
D4
D5
D6
BOOST6
L1
L2
L3
L4
L5
L6
BOOST3
S1
S2
S3
S4
S5
S6
+
+
+
+
+
+
0.002
0.002
0.002
V5
0.002
0.002
0.002
LTC3731H
10µF
Cer.
S1
S2
S3
S4
S5
S6
–
–
–
–
–
–
+
10µF
10V
V5
V
+
+

OUT
3731H F15
3731Hfb
C
C
OUT
IN
V
IN