LT1947 LINER [Linear Technology], LT1947 Datasheet - Page 7

• Manufacturer Part Number: LT1947
• Description: Adjustable Output TFT-LCD Triple Switching Regulator
• Manufacturer: LINER [Linear Technology]

TYPICAL APPLICATIO S
PACKAGE DESCRIPTIO
(.0120 .0015)
0.305 0.038
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.
TYP
SHUTDOWN
GAUGE PLANE
NOTE:
1. DIMENSIONS IN MILLIMETER/(INCH)
2. DRAWING NOT TO SCALE
3. DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS.
4. DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS.
5. LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm (.004") MAX
(.206)
(.007)
5.23
MIN
0.18
MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.152mm (.006") PER SIDE
INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.152mm (.006") PER SIDE
U
RECOMMENDED SOLDER PAD LAYOUT
3.3V
4.7 F
C1: TAIYO YUDEN JMK316BJ475MD
C2: TAIYO YUDEN LMK325BJ335MD
C3: AVX 0.22 F 25V X7R
C4, C6: TAIYO YUDEN LMK107BJ684MA
V
IN
C1
4.7 F 6.3V X7R
3.3 F 10V X7R 2
U
TFT-LCD Bias Generator: 12V, 20V, – 6V Output
0.68 F 10V X7R
(.010)
0.254
(Reference LTC DWG # 05-08-1661)
DETAIL “A”
L2
4.7 H
D2
C3
0.22 F
DETAIL “A”
0.889 0.127
(.035 .005)
(.126 – .136)
3.2 – 3.45
10-Lead Plastic MSOP
0 – 6 TYP
(.0197)
0.50
BSC
R3
147k
R4
10k
(.021 .006)
0.53 0.01
MS Package
SW2
V
FB2
O2
SHDN C
10nF
V
IN
C5
SEATING
LT1947
D1: MBRM120
D2: CMDSH-3
L1: SUMIDA CLQ4DI04R7
L2: TAIYO YUDEN LB2012B4R7M
Q1: MMBT3904 NPN
Q2: MMBT3906 PNP
4.7 H
PLANE
L1
T
D3
SW1
GND
(.118 .004)
BAT54S
3.00 0.102
V
FB1
(.007 – .011)
(.192 .004)
0.17 – 0.27
ON
(NOTE 3)
4.88 0.10
C6
D1
(.043)
D4
1.10
MAX
R1
86.6k
R2
10k
(.0197)
0.50
10
TYP
1 2 3 4 5
9
1947 TA02
C4
8
34k
C2
3.3 F
CERAMIC
2
Q1
7 6
AV
12V
120mA
V
20V
10mA
ON
DD
Q2
34k
(.118 .004)
3.00 0.102
0.497 0.076
(.0196 .003)
(.034)
0.86
NOTE 4
REF
(.005 .002)
V
–6V
20mA
0.13 0.05
MSOP (MS) 0402
OFF
REF
LT1947
7
1947f