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L6983 Scheda tecnica(PDF) 45 Page - STMicroelectronics

Il numero della parte L6983
Spiegazioni elettronici  38 V, 3 A synchronous step-down converter with 17 μA quiescent current
PDF  63 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6983 Scheda tecnica(HTML) 45 Page - STMicroelectronics

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Figure 47. Power losses VIN = 24 V; VOUT = 3.3 V; FSW = 1.0 MHZ
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IOUT [A]
VIN = 24 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 16 V (TDK);
–
1 x CGA5L3X5R1H106K160AB 10 µF 50 V (TDK).
•
Inductor:
–
XAL6060-472ME (Coilcraft).
L6983
Efficiency curves
DS13116 - Rev 1
page 45/63



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