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L6995 数据表(PDF) 19 Page - STMicroelectronics

部件名 L6995
功能描述  STEP DOWN CONTROLLER FOR HIGH DIFFERENTIAL INPUT-OUTPUT CONVERSION
PDF  25 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L6995 数据表(HTML) 19 Page - STMicroelectronics

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L6995
3.9.1 Efficiency
VIN = 20V VOUT = 1.25V FSW = 270KHz
Figure 12. Efficiency vs output current
3.10 5A demo Board
Figure 13. Schematic Diagram
60
65
70
75
80
85
0,0
4 ,0
8 ,0
12,0
16 ,0
20,0
24,0
Cu r r e n t [A]
Ef f [ %]
V in=2 0V V out= 1.25 V Fsw = 220 Khz PFM
V in=20 V V o ut=1 .25V Fs w =2 20K h z PW M
C14,C15
R3
R10
TP1
TP2
C10
R6
Q1
D2
TP3
C2
C6
R8
C12
C9
R9
R1
D1
R2
R5
SD
NS
L1
R7
C7,C13
C11
C4
R4
Rn
C3
C1
Q2
Cn
INT
INT
NOINT
NOINT
C5
C8
Vcc
SHDN
VREF
OSC
NOSKIP
INT
VFB
GNDSENSE
SS
BOOT
ILIM
HGATE
PHASE
LGATE
PGND
GND
VSENSE
OVP
PGOOD
VOUT
GNDOUT
U1
GNDin
VIin
L6995
J1



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