LX1668 데이터 시트보기 (PDF) - Microsemi Corporation
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LX1668 Datasheet PDF : 15 Pages
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PRODUCT DATABOOK 1996/1997
P ROGRAMMABLE MULTIPLE OUTPUT DC:DC CONTROLLER
PR O D U C T I O N D ATA S H E E T
BILL OF MATERIALS
LX1668 Bill of Materials (Refer to Product Highlight)
Ref
Description
Part Number / Manufacturer
U1
C1
C2
C4, C6
C5
C7, C8, C9
C3
CSS
Q1
Q2
Q3
RSENSE
R1
R2
L1
L2
Controller IC
Capacitor, 1500µF, 6.3V, 44mΩ ESR
Capacitor, 1500µF, 6.3V, 44mΩ ESR
Capacitor, 330µF, Electrolytic
Capacitor, 22µF, Electrolytic
Capacitor, 1µF, SMD
Capacitor, 1µF, SMD, 16V
Capacitor, 0.1µF, SMD
MOSFET (low RDS(ON))
MOSFET (low RDS(ON))
MOSFET
Sense Resistor, 2.5mΩ
Resistor, 0Ω (see Table 6)
Resistor, 2.5mΩ (see Table 6)
Inductor, 2 - 3µH
Inductor, 1µH
LX1668 - LinFinity
MV-GX Sanyo
MV-GX Sanyo
MV-GX Sanyo
MV-GX Sanyo
IRL3102/3103, International Rectifier
IRL3303/3103, International Rectifier
IRLZ44N, International Rectifier
PCB trace
SMD
SMD
HM00-97713 or HM00-98637, BI Technologies
Total Number of Components
Optional Components for Over-Voltage Protection and Power Good Signal
Q4
SCR
R3
Resistor, 10kΩ
2N6504
SMD
5V
3.3V
APPLICATION CIRCUIT
12V
LX1668
Qty.
1
6
3
2
2
2
1
1
1
1
1
1
1
1
1
1
26
1
1
Synch.
Switcher
VCC VCC1
LX1668
External
LDO
12V
220µF
LM358
1k
220µF
220µF
220µF
CPU
GTL+
1.5 - 2V @ 16A
[VRM 8.2/8.4]
1.5V @ 3A
Clock
2.5V @ 0.2A
Camino/Whitney
Chipset
1.8V @ 3A
FIGURE 6 — Pentium III Processor Power Supply (Whitney / Camino Chipsets)
RIMM
Memory
2.5V @ 2A
Copyright © 1999
Rev. 1.0 4/99
9
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