lx1675 Microsemi Corporation, lx1675 Datasheet - Page 11

• Manufacturer Part Number: lx1675
• Description: Multiple Output Loadshare?? Pwm Production Data Sheet
• Manufacturer: Microsemi Corporation

Copyright © 2004
Rev. 1.2a, 2006-02-16
Switch
Switch
Side
Side
L2,
L1,
Where V1 = 1.5467 ; V2 = 1.5733 and
TM
Resistor
Divider
100
Resistor
Divider
100
TBD
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
62k
Used
Not
LPF2
62k
4700pF
T H E O R Y O F O P E R A T I O N
62k
LPF1
Figure 8 – LoadSHARE Using Feedback Divider Offset
4700pF
K =
RF2
FB2
Integrated Products Division
V
V
1
2
Microsemi
-
Phase 2
Error Amp
then
®
TBD
=
K
Multiple Output LoadSHARE™ PWM
1
×
−
100
K
( C O N T I N U E D )
=
PWM
Input
Generator
5.814
P
Voltage
RODUCTION
Offset
+46.7mV
+73.3mV
K
1.5V
1.5V
V1
V2
+
-
+3.3V @ 11W
D
+5V @ 7W
ATA
Phase 1
Phase 2
ESR L1
ESR L2
10mΩ
10mΩ
S
HEET
4.67A
7.33A
LX1675
1.5V @ 12A
Page 11
Vou
18W