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LTC3706IGN

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22
LTC3706
19
3706fd
TYPICAL APPLICATIONS
36V to 72V to 12V/20A Isolated Forward Converter. Can Be Paralleled for Higher Output Power
3
6 8
1
T2
4
5
12Ω
150Ω
V
AUX
150pF
10nF
4.7nF
–V
OUT
–V
OUT
–V
OUT
+V
OUT
470pF
470pF
10nF1nF
1µF
100Ω
100k
V
AUX
100k
L1: COILCRAFT DO1606T-104MLC
L5: VISHAY IHLP2525CZERR68M01
L6: PULSE PA1494.242
T1: PULSE PA0955 (6:6:3)
T2: PULSE PA1954NL (1:1:1)
T3: ICE CT02-100 (1:100)
T4: COILCRAFT DA2318-ALC (1:1.5)
NPNs: DIODES FMMT619
PNPs: DIODES FMMT718
2.2nF 250V MURATA GA343QR7GD222KW01L
68µF 16V SANYO 16TQC68M
110k
15.0k
365k
100k
–V
IN
+V
IN
0.1µF
2.2nF
250V
10mΩ
1.5W
5.1Ω
1/2W
1nF
100V
B
11
8
•
•
•
T1
5
3
4
2
100Ω
330Ω
7.5Ω
T3
BAS21
3
–V
OUT
I
S
+
4
21
100pF
680pF
200V
Si7450DP
×3
10nF
10pF
1µF
5.1k
150Ω
100Ω
MMBT2907A
FCX491A
A
FB/IN
+
ISGND
GATEPGND
NDRVVSLMT
FS/IN
–
V
CC
FDC2512
SSFLT
UVLO LTC3725
2.2µF
HAT2244WP
×2
HAT2244WP
×2
SW
10µF510Ω
68µF
16V
×2
2.2µF
100V
×3
2.2µF
100V
1nF
100V
L6
2.4µH
5.1Ω
1/2W
10µF
25V
6.2k 604Ω
3706 TA03
11.5k
PT
+
PT
–
FB
BAT21
BAS21
SW
36V
MMBZ5258B
4
A
B
T4
CMPSH1-4
CMPSH1-4
• •
6
1
0.1µF
3
–V
OUT
100k
0.1µF
Si2303BDS
L1
100µH
2N7002
390Ω
GND
PGND
REGSD
PHASE
RUN/SS
ITH
SLP
FS/SYNC
FG
SW
I
S
–
V
CC
MODE
NDRV
V
IN
I
S
+
SG
I
S
+
LTC3706
CMPSH1-4
CMPSH1-4
68k
68pF
+
•
L5
0.68µH
•
•
LTC3706
20
3706fd
PACKAGE DESCRIPTION
GN Package
24-Lead Plastic SSOP (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1641)
.337 – .344*
(8.560 – 8.738)
GN24 (SSOP) 0204
1 2
3
4
5
6
7
8 9 10 11 12
.229 – .244
(5.817 – 6.198)
.150 – .157**
(3.810 – 3.988)
161718192021222324
15
14
13
.016 – .050
(0.406 – 1.270)
.015 ± .004
(0.38 ± 0.10)
× 45°
0° – 8° TYP
.0075 – .0098
(0.19 – 0.25)
.0532 – .0688
(1.35 – 1.75)
.008 – .012
(0.203 – 0.305)
TYP
.004 – .0098
(0.102 – 0.249)
.0250
(0.635)
BSC
.033
(0.838)
REF
.254 MIN
RECOMMENDED SOLDER PAD LAYOUT
.150 – .165
.0250 BSC.0165 ± .0015
.045 ± .005
* DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
** DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
INCHES
(MILLIMETERS)
NOTE:
1. CONTROLLING DIMENSION: INCHES
2. DIMENSIONS ARE IN
3. DRAWING NOT TO SCALE
LTC3706
21
3706fd
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
REVISION HISTORY
REV DATE DESCRIPTION PAGE NUMBER
D 7/11 Updated Electrical Characteristics
Updated Table 3
Added new Typical Application schematics
Updated Related Parts
3, 4
11
19, 22
22
(Revision history begins at Rev D)
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22

LTC3706IGN

Mfr. #:
Buy LTC3706IGN
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators LTC3706 - Secondary-Side Synchronous Forward Controller with Polyphase Capability
Lifecycle:
New from this manufacturer.
Delivery:
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