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L6983 Datenblatt(PDF) 47 Page - STMicroelectronics

Teilenummer L6983
Bauteilbeschribung  38 V, 3 A synchronous step-down converter with 17 μA quiescent current
PDF  63 Pages
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6983 Datenblatt(HTML) 47 Page - STMicroelectronics

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Figure 50. Power losses VIN = 12 V; VOUT = 3.3 V; FSW = 1.0 MHZ
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12
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IOUT [A]
Vin = 12 V ; Vout = 3.3 V ; Fsw = 1.0 MHz
LCM
LNM
POUT
The following three figures show the efficiency and power losses acquired on the standard evaluation board of the
device, STEVAL-ISA208V1, selecting the following output filter:
•
COUT:
–
1 x CGA6P1X7R1C226M250AC 22 µF 16V (TDK);
–
2 x CGA5L3X5R1H106K160AB 10 µF 50V (TDK).
•
Inductor:
–
XAL6060-472ME (Coilcraft).
L6983
Efficiency curves
DS13116 - Rev 2
page 47/63



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