Datasheet

19
LTC3718
3718fa
One Half V
IN
, ±10A Bus Terminator
C
SS
0.1µF X7R
C2
100pF
R
C
4.75k
R
PG
100k
RUN/SS
V
ON
PGOOD
V
RNG
I
TH
SGND1
I
ON
V
FB1
V
REF
SHDN
SGND2
V
FB2
BOOST
TG
SW1
SENSE
+
SENSE
–
PGND1
BG
INTV
CC
V
IN1
V
IN2
PGND2
SW2
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
LTC3718
C1
820pF
X7R
R
ON
237k
PGOOD
R
F1
12.1k
*SANYO POSCAP 4TPB470M
**SUMIDA CEP125-0R8MC
***PANASONIC ELJPC4R7MF
****SANYO POSCAP 6TPB330M
R
F2
37.4k
R
F3
10k
C
F4
1000pF X7R
4.7µF
6.3V X7R
L2***
4.7µH
M2
Si7440DP
D2
B340A
3718 TA02
L1**
0.8µH
D3
MBR0520
C
VCC1
10µF 6.3V
X5R
C
B
0.33µF
X7R
D
B
CMDSH-3
C
OUT
*
470µF
×2
M1
Si7440DP
22µF
X5R
C
IN2
****
330µF
V
IN
2.5V
V
OUT
1.25V
±10A
C
IN1
22µF X5R
×2
D1
B340A
+
U
PACKAGE DESCRIPTIO
G Package
24-Lead Plastic SSOP (5.3mm)
(Reference LTC DWG # 05-08-1640)
TYPICAL APPLICATIO
U
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.
G24 SSOP 0802
0.09 – 0.25
(.0035 – .010)
0
° – 8°
0.55 – 0.95
(.022 – .037)
5.00 – 5.60**
(.197 – .221)
7.40 – 8.20
(.291 – .323)
1234
5
6
7
8 9 10 11 12
7.90 – 8.50*
(.311 – .335)
2122 18 17 16 15 14
13
19202324
2.0
(.079)
0.05
(.002)
0.65
(.0256)
BSC
0.22 – 0.38
(.009 – .015)
MILLIMETERS
(INCHES)
DIMENSIONS DO NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED .152mm (.006") PER SIDE
DIMENSIONS DO NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED .254mm (.010") PER SIDE
*
**
NOTE:
1. CONTROLLING DIMENSION: MILLIMETERS
2. DIMENSIONS ARE IN
3. DRAWING NOT TO SCALE
0.42 ±0.03
0.65
BSC
5.3 – 5.7
7.8 – 8.2
RECOMMENDED SOLDER PAD LAYOUT
1.25 ±0.12