LX1673-09CPW Microsemi Analog Mixed Signal Group, LX1673-09CPW Datasheet - Page 6

• Manufacturer Part Number: LX1673-09CPW
• Description: IC CTRLR PS DUAL OUTPUT 20TSSOP
• Manufacturer: Microsemi Analog Mixed Signal Group

Specifications of LX1673-09CPW

• Pwm Type: Voltage Mode
• Number Of Outputs: 2
• Frequency - Max: 1.04MHz
• Duty Cycle: 70%
• 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: 20-TSSOP
• Frequency-max: 1.04MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Copyright © 2004
Rev 1.0, 3/18/2005
TM
EAO
EA+
EA-
VS
VOUT 2
CSS
V
Compensation
+
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
-
REF
V
Amplifier/
TRIP
CS
20k
+V
SS
I
SET
+
Comp
-
CS Comp
+
-
I
RESET
Figure 1 – Block Diagram of PWM Phase
+5V
Figure 2 – LDO Controller Block Diagram
Oscillator
SS1
Ramp
R
SET
Integrated Products Division
DIS
R
S
PWM
B L O C K D I A G R A M
F
R
FAULT
Q
Q
®
Microsemi
LDFB
LDGD
UVLO
LDDIS
S
S
S
LDVCC
UVLO
V
REF
TEMP
PWGD
High Frequency PWM Regulator
Hiccup
-
P
RODUCTION
5.5V
16V
I
SET
D
VCC
VCCL
TDRV
BDRV
VC1
PGND
ATA
+5V
+5V
LDVCC
S
+12V
HEET
Vin (5V)
C
L1
IN
C
ESR
OUT
LX1673
V out 1
Page 6