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L6917B Datasheet(PDF) 31 Page - STMicroelectronics

Part # L6917B
Description  5 BIT PROGRAMMABLE DUAL-PHASE CONTROLLER
PDF  33 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6917B Datasheet(HTML) 31 Page - STMicroelectronics

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L6917B
Part List
R1
10k
SMD 0805
R2, R9
Not Mounted
SMD 0805
R3, R6
1.3k
1%
SMD 0805
R4, R5
390
1%
SMD 0805
R7
75
1%
SMD 0805
R8
750
SMD 0805
R10
82
SMD 0805
R12 to R15
2.2
SMD 0805
R16, R17, R18
0
SMD 0805
R19
300
1%
SMD 0805
R20
390
1%
SMD 0805
ROSC
1.3M
1%
SMD 0805
C1
Not Mounted
SMD 0805
C2
220n
SMD 0805
C3, C4
100n
Ceramic
SMD 0805
C5, C6, C7, C8
1
µ
Ceramic
SMD 1206
C9, C10
10
µ
Ceramic
SMD 1206
C11 to C13
100
µ/ 20V
OSCON 20SA100M
Radial 10x10.5
C14,C16,C18,C20,C22
2200
µ/16V
SANYO
Radial 10x23
L1, L2
2.8
µ
77121 Core – 9 Turns
U1
L6917B
STMicroelectronics
SO28
Q1,Q1a,Q2, Q3,Q3a,Q4
STB90NF03L
STMicroelectronics
D2PACK
D1, D2
STPS340U
STMicroelectronics
SMB
D3, D4
1N4148
STMicroelectronics
SOT23
DZ1
Not Mounted
Minimelf
Figure 28. System Efficiency for a 12V/3.3V
Application (fosc = 200kHz)
Figure 29. Load Transient Response: 0A to 35A
@ 1A/
µs
88
89
90
91
92
93
0
5
10
15
20
25
30
35
40
Output Current [A]



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