lx1675 Microsemi Corporation, lx1675 Datasheet - Page 8

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

Copyright © 2004
Rev. 1.2a, 2006-02-16
+3.3V
+1.8V
OUT
OUT
+VIN
RTN
TP20
TP21
TP15
TP16
TP25
TP28
Figure 4 – Four Separate Voltage Outputs with Sequential Power Up Sequence. All High-side MOSFET Drivers
TP7
TP8
+VIN
TM
+
R19
20
100uF
C27
25V
C22
1.5nF
470uF
+
16V
470uF
470uF
16V
16V
C5
C8
C12
L2 6.8uh
45.3K
R11
+2.5V
24.3K
R12
+
+
TP10
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
IRF7822
TP2
TP3
14.3K
R13
Q2
2.10K
R1
C17
1.2nF
TP1
C19
TP12
FDS6898A
FDS6898A
100K
R20
2.00K
0.0
R8
R6
22pF
Q3A
Q3B
+VIN
+
1.69K
R2
470uF
16V
C7
C14
0.22uF
TP5
TP11
TP4
SF
0.1uF
C6
10
11
12
1
2
3
4
5
6
7
8
9
TP13
LO2
HR2
HO2
VC2
CS2
SF
EO2
FB2
SS2
RF2
EO1
FB1
C24
A P P L I C A T I O N C I R U I T
Integrated Products Division
C28
0.33uF
C26
1.2nF
LX1675CLQ
22pF
R15 100K
Microsemi
C23
0.1uF
MBR0530
U2
Bootstrapped to V
CR2
®
MBR0530
CR1
C13
88.7K
C1
DGND
470pF
R17
VCCL
C29
TP17
MBR0530
HR3
PG3
CS1
CS3
EO3
LO3
FB3
SS3
VIN
FS
CR3
0.1uF
0.1uF
VREF
VIA
C25
31
30
29
28
27
26
25
24
23
22
21
20
0.33uF
C18
1.5nF
FS
45.3K
R16
Multiple Output LoadSHARE™ PWM
TP37
R18 24.3K
R14
2.00K
TP26
C32
R4
C9
TP18
IN
+VIN
C10
C16
.
2.00K
4.7uF
4.7uF
4.7uF
C15
1.2nF
TP24
R21
25V
22pF
20
P
R5 100K
R9
21.0K
RODUCTION
TP19
C20
TP27
TP36
TP35
TP34
TP33
1.5nF
R7
45.3K
R10 24.3K
+VIN
+VIN
FDS6898A
FDS6898A
FDS6898A
FDS6898A
+
+
Q1A
Q1B
Q4A
Q4B
470uF
16V
470uF
16V
C2
C11
TP30
D
ATA
R22
20
TP31
TP38
TP29
TP32
S
HEET
L1 6.8uh
L3 6.8uh
+
+
+2.5V
470uF
16V
470uF
16V
C4
C21
LX1675
TP6
TP9
TP22
TP23
+1.2V
+2.5V
OUT
OUT
Page 8