LX1671CLQ Microsemi Analog Mixed Signal Group, LX1671CLQ Datasheet - Page 6

• Manufacturer Part Number: LX1671CLQ
• Description: IC CTRLR PS QUAD OUTPUT 38MLPQ
• Manufacturer: Microsemi Analog Mixed Signal Group
• Series: LoadSHARE™r

Specifications of LX1671CLQ

• Pwm Type: Voltage Mode
• Number Of Outputs: 4
• Frequency - Max: 345kHz
• Duty Cycle: 85%
• Voltage - Supply: 4.5 V ~ 5.5 V
• Buck: Yes
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: No
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 38-MLPQ
• Frequency-max: 345kHz
• For Use With: LX1671 EVA KIT - KIT EVAL FOR SWITCHING REGULATOR
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Copyright © 2000
Rev. 1.2b, 2006-02-13
EOX
VSX
FBX
VOUT4
TM
V
Compensation
+
-
REF
V
C
Amplifier/
CSX
TRIP
20k
SS
SS/ENABLE
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
+V
I
Error Comp
SET
+
CS Comp
-
+
-
I
RESET
Figure 1 – Typical Block Diagram of Phase 1 and 3
SS1
SS2
SS3
Oscillator
Ramp
Figure 2 – LDO Controller Block Diagram
Integrated Products, Power Management
R
+5V
SET
F
R
S
R
PWM
FAULT
Q
Q
B L O C K D I A G R A M
S
S
S
®
Microsemi
UVLO
UVLO
TEMP
LDFB
LDGD
LDDIS
Multiple Output LoadSHARE™ PWM
Hiccup
V
REF
P
16V
RODUCTION
16V
-
5.5V
I
SET
VCX
VCCL
HOX
LOX
PGX
V
+12V
CC
+5V
D
+5V
ATA
V
S
IN
HEET
(5V)
C
L1
IN
C
ESR
VC1
OUT
R
1
+12V
R
LX1671
2
OUT 1
Page 6