lx1675 Microsemi Corporation, lx1675 Datasheet - Page 6

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

Copyright © 2004
Rev. 1.2a, 2006-02-16
CSS
R1
R2
TM
EOx
SSx
FBx
Compensation
+
-
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
Amplifier/
CSx
500k
50uA
20K
I
SET
CS Comp
+
-
Error Comp
+
V
CSS
-
REF
100mv
SSMSK
CLK
LDFB
Figure 1 – Typical Block Diagram for Phases 1, and 3
SSL
AGND
COUNTER
4 CYCLE
F
+
-
S I M P L I F I E D B L O C K D I A G R A M
SS COMP
FAULT
Figure 2 – LDO Controller Block Diagram
R
R
S
PWM
R
Integrated Products Division
Q
SET
S
500k
Microsemi
20K
®
SF
Hiccup
V
REF
Regualtor
9.6V
+
-
F
SF
LDOEA
LDOFLT
Multiple Output LoadSHARE™ PWM
Vref
BG
VSLR
UVLO
TSD
Regulator
RAMP
CLK
+5V
P
Oscillator
RODUCTION
Ramp
LDGD
+
VIN
HOx
HRx
LOx
PGx
VCx
VIN
VCCL
FS
D
C
IN
ATA
+5V
VIN
+5V
S
+
+
HEET
VIN
LX
C
ESR
OUT
C
IN
LX1675
OUT X
Page 6