LX1671CLQ Microsemi Analog Mixed Signal Group, LX1671CLQ Datasheet - Page 7

• 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
LPF1
LPF2
P
HASE1
TM
EO2
VS2
FB2
RF2
CSS
V
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
Compensation
+
REF
-
V
Amplifier/
CS2
TRIP
20k
SS/ENABLE
Figure 3 – Block Diagram of Phase 2 Connected in LoadSHARE Mode
Error Comp
I
SET
+
-
CS Comp
+
-
I
RESET
SS1
SS2
SS3
Integrated Products, Power Management
Oscillator
Ramp
R
SET
R
S
B L O C K D I A G R A M
PWM
F
R
FAULT
Q
Q
®
Microsemi
UVLO
S
S
S
UVLO
TEMP
Multiple Output LoadSHARE™ PWM
Hiccup
P
16V
RODUCTION
16V
5.5V
I
SET
D
VC2
HO2
VCCL
VCC
LO2
ATA
PG1
+5V
+5V
+5V
S
HEET
V
IN
(12V)
C
L2
IN
C
ESR
LX1671
OUT
OUT 1
Page 7