參數(shù)資料
型號: ISL97702IRZ-T7
廠商: INTERSIL CORP
元件分類: 穩(wěn)壓器
英文描述: Boost with Dual Reference Outputs
中文描述: 1.2 A SWITCHING REGULATOR, 1100 kHz SWITCHING FREQ-MAX, DSO10
封裝: 3 X 3 MM, ROHS COMPLIANT, MO-229, DFN-10
文件頁數(shù): 12/13頁
文件大?。?/td> 489K
代理商: ISL97702IRZ-T7
12
FN7462.0
October 13, 2005
PCB layout Considerations
The layout is very important for the converter to function
properly. To ensure the high pulse current in the power
ground does not interfere with the sensitive feedback
signals, the current loops (V
IN
-L1-LX-GND, and V
IN
-L1-
V
OUT
-C
OUT
-GND) should be as short as possible. For the
DFN package, there is no separated GND. All return GNDs
should be connected in GND pin but with no sharing branch.
The heat of the IC is mainly dissipated through the thermal
pad. Maximizing the copper area connected to the thermal
pad is preferable. In addition, a solid ground plane is helpful
for the EMI performance.
The demo board is a good example layout based on the
principle. The overview, top layer and bottom layer of the
demo board layout are shown in Figures 21, 22 and 23.
Demo Board Layout
FIGURE 21. OVERVIEW of DEMO BOARD
FIGURE 22. BOTTOM LAYER of the DEMO BOARD
FIGURE 23. TOP LAYER of the DEMO BOARD
ISL97702
相關(guān)PDF資料
PDF描述
ISL97801 High Power LED Driver
ISL97801ARZ High Power LED Driver
ISL97801ARZ-T High Power LED Driver
ISL97801ARZ-TK High Power LED Driver
ISL9R1560P2 8A, 600V Stealth Diode(8A,600V Stealth二極管)
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