Datasheet

LTC3723-1/LTC3723-2
19
372312f
PACKAGE DESCRIPTIO
U
GN Package
16-Lead Plastic SSOP (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1641)
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 represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
GN16 (SSOP) 0204
12
3
4
5
6
7
8
.229 – .244
(5.817 – 6.198)
.150 – .157**
(3.810 – 3.988)
16
15
14
13
.189 – .196*
(4.801 – 4.978)
12 11 10
9
.016 – .050
(0.406 – 1.270)
.015
±
.004
(0.38
±
0.10)
× 45°
0° – 8°
TYP
.007 – .0098
(0.178 – 0.249)
.0532 – .0688
(1.35 – 1.75)
.008 – .012
(0.203 – 0.305)
TYP
.004 – .0098
(0.102 – 0.249)
.0250
(0.635)
BSC
.009
(0.229)
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
5
46
A
B
12V
V
IN
15
LTC3723EGN-1
DRVB
SDRB
SDRA
COMP
CS
V
CC
UVLO
9
150k
1
0.47µF
1µF
DRVA
DPRG V
REF
SPRGGND SSFB C
T
330pF
68nF
270pF
T2
T1
29.46mm × 25.4mm × 10.2mm PLANAR
24.9k
813
3
HAT2169
×2
L3
1mH
68µF
20V
V
F
• •
3
2
8
19
5
4
16
10k
33k
100Ω
1/4W
R1
0.015Ω
1.5W
66.5k
RLEB
127 14
220pF
100Ω
2.67k 2.67k
1.27k
4.53k
100pF
464k
30k
1/4W
SYNC PV
CC
CSF
+
V
F
LTC3901EGN
CSF
–
8
11 12
1
410137
1µF
4.7µF
372312 TA05
–V
OUT
D1
10V
+V
OUT
MF MF2
GND PGND GND2 PGND2 TIMER
V
CC
470pF
14 15
1.27k
33.2k
1k
4.53k
CSE
+
V
E
–V
OUT
+V
OUT
+V
OUT
–V
OUT
V
F
+V
OUT
–V
OUT
CSE
–
65
ME ME2
23 16
HAT2169
×2
L1
0.56µH
112
4
12V
BAS21
ES1B
ES1B
BAS21
3
5
1
6
•
••
•
•
9
7
V
E
+
0.1µF
Si7370DP
1
6
5
4
B
2
A
BAS21
LTC4440ES6
BOOSTINP
TG
TSGND
V
CC
12V
3
0.1µF
Si7370DP
Si7370DP
Si7370DP
1
6
5
42
B
BAS21
LTC4440ES6
BOOSTINP
TG
TSGND
V
CC
12V
1µF
100V
×3
V
IN
V
IN
–V
IN
1µF
100V
22µF
25V
×3
1µF, 100V TDK C3225X7R2A105M
4.7µF, 25V TDK C4532X7R1E475M
22µF, 25V TDK C4532X7R1E226M
D1: MMBZ5240B
D2: MMBZ5242B
L1: COILCRAFT DO1813P-561HC
L2: PULSE PA0513.441
L3: COILCRAFT DO1608C-105
T1: PULSE PA0901.004 (4:4:4:4CT)
T2: PULSE PA0785 (1:0.5T)
10
I
SNS
I
SNS
0.1µF
4.7µF
25V
2x
11
A
100Ω
22Ω
4.7Ω4.7Ω
2.2nF
250V
V
E
1nF
100V
0.33µF
100V
L2
0.44µH
10Ω
1W
5
7
8
9
OUTPUT VOLTAGE (V)
10
11
12
13
10 15
LOAD CURRENT (A)
2520
42V
IN
48V
IN
53V
IN
MMBT3904
•
D2
12V
MMBT3904
1.2k
0.5W
5
91
92
93
EFFICIENCY (%)
94
95
96
97
10 15
LOAD CURRENT (A)
2520
42V
IN
48V
IN
53V
IN
5.1Ω
1/4W
TYPICAL APPLICATIO S
U
LTC3723-1 300W 42V
IN
to 56V
IN
to 12V/25A Isolated Bus Converter