參數(shù)資料
型號: PM6686
廠商: STMICROELECTRONICS
元件分類: 穩(wěn)壓器
英文描述: SWITCHING CONTROLLER, QCC32
封裝: 5 X 5 MM, 1 MM HEIGHT, 0.50 MM PITCH, ROHS COMPLIANT, VFQFPN-32
文件頁數(shù): 38/50頁
文件大?。?/td> 1066K
代理商: PM6686
PM6686
Diode selection
Doc ID 15281 Rev 4
43/50
11.3
Other important components
11.3.1
VIN filter
A VIN pin low pass filter is suggested to reduce switching noise. The low pass filter is shown
in the next figure:
Figure 55.
VIN pin filter
Typical component value is: C = 1 F.
11.3.2
PVCC and VCC
PVCC and VCC are connected with an internal resistor (about 10
Ω); this allows reducing
the external components. Connect the +5 V supply rail only to PVCC.
Use a bypass capacitor on PVCC pin. A VCC low pass filter helps to reject switching
commutations noise, this filter can be implemented simply adding a bypass capacitor on
VCC pin.
Figure 56.
VCC and PVCC filters
VIN
C
Input
Voltage
PVCC
VCC
C1
C2
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參數(shù)描述
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