LT1931 데이터 시트보기 (PDF) - Linear Technology
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LT1931 Datasheet PDF : 12 Pages
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LT1931/LT1931A
TYPICAL APPLICATIO S
SLIC Power Supply with – 21.6V and – 65V Outputs, Uses Soft-Start
VIN
5V
RSS
15k
VSS
L1
10µH
C1
4.7µF
16V
VIN
SW
LT1931
SHDN
NFB
GND
R2
1k
CSS
68nF
R1
1Ω
R3
16.2k
C8
1000pF R4
2.7k
*TOTAL OUTPUT POWER NOT TO EXCEED 1.3W
C1 TO C7: X5R OR X7R
D1, D2: BAV99 OR EQUIVALENT
C4
L1: SUMIDA CR43-100
1µF
35V
C2
1µF
35V
D1
3
2
1
C3
1µF
35V
D2
3
2
1
D3
3
2
1
C5
4.7µF
25V
COM
VOUT1
–21.6V
48mA*
C6
4.7µF
25V
C7
4.7µF
25V
VOUT2
– 65V
1931 TA09 20mA*
PACKAGE DESCRIPTIO
S5 Package
5-Lead Plastic TSOT-23
(Reference LTC DWG # 05-08-1635)
0.62
0.95
MAX
REF
1.22 REF
2.90 BSC
(NOTE 4)
3.85 MAX 2.62 REF
1.4 MIN
2.80 BSC
1.50 – 1.75
(NOTE 4)
RECOMMENDED SOLDER PAD LAYOUT
PER IPC CALCULATOR
0.20 BSC
DATUM ‘A’
0.30 – 0.50 REF
0.09 – 0.20
NOTE:
(NOTE 3)
1. DIMENSIONS ARE IN MILLIMETERS
2. DRAWING NOT TO SCALE
3. DIMENSIONS ARE INCLUSIVE OF PLATING
4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR
5. MOLD FLASH SHALL NOT EXCEED 0.254mm
6. JEDEC PACKAGE REFERENCE IS MO-193
PIN ONE
0.95 BSC
0.80 – 0.90
1.00 MAX
0.30 – 0.45 TYP
5 PLCS (NOTE 3)
0.01 – 0.10
1.90 BSC
S5 TSOT-23 0302 REV B
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.
1931fa
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