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VLF10045 bảng dữ liệu(PDF) 13 Page - Richtek Technology Corporation

tên linh kiện VLF10045
Giải thích chi tiết về linh kiện  3A, 36V, 500kHz Synchronous Step-Down Converter
PDF  15 Pages
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nhà sản xuất  RICHTEK [Richtek Technology Corporation]
Trang chủ  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

VLF10045 bảng dữ liệu(HTML) 13 Page - Richtek Technology Corporation

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RT7272B
13
DS7272B-01
January 2013
www.richtek.com
Copyright
2013 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
©
(a) Copper Area = (2.3 x 2.3) mm2,
θJA = 75°C/W
(b) Copper Area = 10mm2,
θJA = 64°C/W
(c) Copper Area = 30mm
2 ,
θJA = 54°C/W
(d) Copper Area = 50mm2 ,
θJA = 51°C/W
(e) Copper Area = 70mm2 ,
θJA = 49°C/W
Figure 6. Thermal Resistance vs. Copper Area Layout
Design
Layout Considerations
For best performance of the RT7272B, the following layout
guidelines must be strictly followed.
Input capacitor must be placed as close to the IC as
possible.
SW should be connected to inductor by wide and short
trace. Keep sensitive components away from this trace.
The RL resistor, compensator and feedback components
must be connected as close to the device as possible.



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