LTC3718EG Linear Technology, LTC3718EG Datasheet - Page 19

• Manufacturer Part Number: LTC3718EG
• Description: IC DC/DC CONTRLR DDR/QDR 24-SSOP
• Manufacturer: Linear Technology

Specifications of LTC3718EG

• Applications: Controller, DDR, QDR
• Voltage - Input: 1.5 ~ 36 V
• Number Of Outputs: 1
• Voltage - Output: 0.75 ~ 18 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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