LX1663 Ver la hoja de datos (PDF) - Microsemi Corporation
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LX1663 Datasheet PDF : 15 Pages
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PRODUCT DATABOOK 1996/1997
LX1662/62A, LX1663/63A
SINGLE-CHIP PROGRAMMABLE PWM CONTROLLERS WITH 5-BIT DAC
PRODUCTION DATA SHEET
APPLICATION INFORMATION
12V
5V
C3
0.1µF
VID0
VID1
VID2
VID3
VID4
U1
LX1662
1 SS
2 INV
V 3
CC_CORE
4 VID0
5 VID1
6 VID2
7 VID3
VC1 14
TDRV 13
GND 12
BDRV 11
VCC 10
CT 9
VID4 8
14-pin, Narrow Body SOIC
L2
1µH
CS
6.3V
1500µF x3
C5
C2
1µF
Q1
IRL3102
RS
L1, 2.5µH
C8
680pF
Q2
IRL3303
6.3V, 1500µF x 3**
** Three capacitors for Pentium
Four capacitors for Pentium II
Supply Voltage VOUT
for CPU Core
C1
FIGURE 6 — LX1662 In A Pentium / Pentium II Processor Single Chip Power Supply Controller
Solution With Loss-Less Current Sensing (Synchronous)
VID0
VID1
VID2
VID3
VID4
C3
0.1µF
12V
U1
LX1662
1 SS
2 INV
V 3
CC_CORE
4 VID0
5 VID1
6 VID2
7 VID3
VC1 14
TDRV 13
GND 12
BDRV 11
VCC 10
CT 9
VID4 8
14-pin, Narrow Body SOIC
5V
6.3V
1500µF x3
C5
1µF
C2
Q1
IRL3102
R1
D1
MBR2535
C8
680pF
L1, 5µH
0.005
6.3V, 1500µF x 3**
** Three capacitors for Pentium
Four capacitors for Pentium II
VOUT
Supply Voltage
for CPU Core
C1
FIGURE 7 — LX1662 In A Non-Synchronous Pentium / Socket 7 Power Supply Application
Copyright © 1999
Rev. 1.2a, 11/04
9
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