lx1672 Microsemi Corporation, lx1672 Datasheet - Page 5

• Manufacturer Part Number: lx1672
• Description: Multiple Output Loadshare Pwm
• Manufacturer: Microsemi Corporation

Copyright © 2000
Rev. 1.0, 2005-08-10
Unless otherwise specified, the following specifications apply over the operating ambient temperature 0°C
otherwise noted and the following test conditions: V
UVLO AND SOFT-START (SS)
Start-Up Threshold (V
Start-Up Threshold (V
Hysteresis Vcc
SS Input Resistance
SS Shutdown Threshold
Hiccup Mode Duty Cycle
Voltage Reference Tolerance
Source Current
Sink Current
PWM Disable
LDO Disable
Note 1 – X = Phase 1,2
LINEAR REGULATOR CONTROLLER
DISABLE INPUT
Note 2 – System Specification
TM
Parameter
CX
CC
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
), (V
)
CCL
)
Symbol
E L E C T R I C A L C H A R A C T E R I S T I C S
LDDIS
V
DISX
I
I
R
HDRV
LDRV
SHDN
SS
CC
Integrated Products Division
C
V
V
V
Pull down Resistance
Pull down Resistance
SS
LDFB
OUT
OUT
= 5V, V
= 0.1μF
®
Microsemi
= 9V
= 0.4V
= 0.8V, C
CCL
= 5V, V
OUT
Test Conditions
= 330µF
Multiple Output LoadSHARE™ PWM
CX
= 12V, HOX = LOX = 3000pF Load
P
RODUCTION
D
ATA
Min
≤
3.5
4.0
6
T
S
A
HEET
≤
LX1672
Typ
4.25
0.15
70°C except where
100
4.0
0.1
0.2
1.0
2.5
20
10
80
2
Max
4.5
4.5
LX1672
Units
mA
mA
ΚΩ
KΩ
KΩ
%
%
V
V
V
V
V
V
Page 5