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STBB1-AXX bảng dữ liệu(PDF) 8 Page - STMicroelectronics

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Giải thích chi tiết về linh kiện  Buck-boost DC-DC converter
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STBB1-AXX bảng dữ liệu(HTML) 8 Page - STMicroelectronics

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Typical application
STBB1-AXX
8/24
DocID022197 Rev 4
4
Typical application
Figure 3: Application circuit (adjustable output version)
Table 5: List of external components
Component
Manufacturer
Part number
Value
Size
CIN
Murata
GRM21BR71A106KE51
L
10 µF
0805
COUT
Murata
GRM21BR60J226ME39
L
22 µF
0805
L
TDK
VLCF4020T-2R2N1R7
2.2 µH
4x4x2
Coilcraft
XFL4020-222ME
4x4x2
R1
(1)
560 kΩ (VO = 3.3 V)
See below
note
0402
R2
(1)
100 kΩ
0402
Notes:
(1)
R1 and R2 are calculated according to the following formula: R1 = R2 x (VOUT/VFB - 1). Suggested value
for R2 is 100 kΩ. In order to reduce the quiescent current a maximum value of 500 kΩ is possible.
The above listed components refer to a typical application. The STBB1-AXX
operation is not limited to the choice of these components.


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