參數(shù)資料
型號(hào): LX1668CDW-TR
廠商: MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP
元件分類: 穩(wěn)壓器
英文描述: 1 A SWITCHING CONTROLLER, 250 kHz SWITCHING FREQ-MAX, PDSO20
封裝: ROHS COMPLIANT, PLASTIC, SOWB-20
文件頁(yè)數(shù): 15/15頁(yè)
文件大?。?/td> 392K
代理商: LX1668CDW-TR
PROGRAMMABLE MULTIPLE OUTPUT DC:DC CONTROLLER
LX1668
PRODUCT DA T ABOOK 1996/1997
9
Copyright 1999
Rev. 1.0a
P RODUCTION D AT A S HEET
BILL OF MA TERIALS
U1
Controller IC
LX1668 - LinFinity
1
C1
Capacitor, 1500F, 6.3V, 44m
ESR
MV-GX Sanyo
6
C2
Capacitor, 1500F, 6.3V, 44m
ESR
MV-GX Sanyo
3
C4, C6
Capacitor, 330F, Electrolytic
MV-GX Sanyo
2
C5
Capacitor, 22F, Electrolytic
MV-GX Sanyo
2
C7, C8, C9
Capacitor, 1F, SMD
2
C3
Capacitor, 1F, SMD, 16V
1
CSS
Capacitor, 0.1F, SMD
1
Q1
MOSFET (low R
DS(ON))
IRL3102/3103, International Rectifier
1
Q2
MOSFET (low R
DS(ON))
IRL3303/3103, International Rectifier
1
Q3
MOSFET
IRLZ44N, International Rectifier
1
R
SENSE
Sense Resistor, 2.5m
PCB trace
1
R1
Resistor, 0
(see Table 6)
SMD
1
R2
Resistor, 2.5m
(see Table 6)
SMD
1
L1
Inductor, 2 - 3H
HM00-97713 or HM00-98637, BI Technologies
1
L2
Inductor, 1H
1
Total Number of Components
26
Optional Components for Over-Voltage Protection and Power Good Signal
Q4
SCR
2N6504
1
R3
Resistor, 10k
SMD
1
Ref
Description
Part Number / Manufacturer
Qty.
LX1668 Bill of Materials
(Refer to Product Highlight)
FIGURE 6 — Pentium III Processor Power Supply (Whitney / Camino Chipsets)
1k
1.5k
LM358
V
CC
V
CC1
V
CC3
Clock
Camino/Whitney
Chipset
RIMM
Memory
220F
12V
GTL+
CPU
LX1668
5V
3.3V
12V
1.5 - 2V @ 16A
[VRM 8.2/8.4]
1.5V @ 3A
2.5V @ 0.2A
1.8V @ 3A
2.5V @ 2A
VID
Synch.
Switcher
External
LDO
APPLICA TION CIRCUIT
O
B
SO
LETE
PRO
D
UCT
NOT
RECOMMENDED
FOR
NEW
DESIGNS
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