3439EFE 데이터 시트보기 (PDF) - Linear Technology
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3439EFE Datasheet PDF : 12 Pages
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LT3439
TYPICAL APPLICATIO
Low Noise 5V to ±12V Push-Pull DC Transformer
D1
VIN
5V
C1
13
4.7µF
11
VIN
3
SHDN
COLA
CT
820pF
5
6
7
RT
16.9k
LT3439
14
SYNC
COLB
CT
RT
GND
4
RSL
PGND
10
1, 16
C1: TAIYO YUDEN JMK212BJ475KG
C3-C6: SANYO OS-CON 20SVQP47M
C9, C10: SANYO OS-CON 16SVQPA39M
C11: AVX 1206AC222MA11A
D1-D4: MMBD914
L1, L2: COILCRAFT DT1608C-333
T1: COILTRONICS CTX02-16030
D2
T1
••
••
D3
RSI
16.9k
D4
C11
2.2nF
1kV
OPTIONAL
L1
+ C3
C4 +
47µF 47µF
OPTIONAL
R8
10k
L2
C5
47µF
C6
47µF
BYP
LT1761-BYP
IN
OUT
GND ADJ
R2
49.9k
C7
0.01µF
R1 +
442k
VOUT
12V
80mA
C9
39µF
BYP
LT1964-BYP
IN
OUT
GND ADJ
R4
49.9k
C8
0.01µF
R3
442k
3439 TA02
VOUT
–12V
C10 80mA
39µF
PACKAGE DESCRIPTIO
2.74
(.108)
FE Package
16-Lead Plastic TSSOP (4.4mm)
(Reference LTC DWG # 05-08-1663)
Exposed Pad Variation BA
4.90 – 5.10*
(.193 – .201)
2.74
(.108)
16 1514 13 12 1110 9
6.60 ±0.10
4.50 ±0.10
SEE NOTE 4
2.74
(.108)
0.45 ±0.05
1.05 ±0.10
0.65 BSC
RECOMMENDED SOLDER PAD LAYOUT
4.30 – 4.50*
(.169 – .177)
0° – 8°
2.74 6.40
(.108) BSC
12345678
1.10
(.0433)
MAX
0.09 – 0.20
(.0036 – .0079)
0.45 – 0.75
(.018 – .030)
NOTE:
1. CONTROLLING DIMENSION: MILLIMETERS
2.
DIMENSIONS
ARE
IN
MILLIMETERS
(INCHES)
3. DRAWING NOT TO SCALE
0.65
(.0256)
BSC
0.195 – 0.30
(.0077 – .0118)
0.05 – 0.15
(.002 – .006)
FE16 (BA) TSSOP 0203
4. RECOMMENDED MINIMUM PCB METAL SIZE
FOR EXPOSED PAD ATTACHMENT
*DIMENSIONS DO NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.150mm (.006") PER SIDE
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.
sn3439 3439fs
11
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