lx1672 Microsemi Corporation, lx1672 Datasheet - Page 4

• 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
SWITCHING REGULATORS
Input Voltage
Input Voltage
Operation Current
Reference Voltage
Line Regulation (Note 2)
Load Regulation (Note 2)
Minimum Pulse Width
Minimum Pulse Width
Maximum Duty Cycle
Maximum Duty Cycle
Maximum Duty Cycle
ERROR AMPLIFIERS
Input Offset Voltage
DC Open Loop Gain
Unity Gain Bandwidth
High Output Voltage
Low Output Voltage
Input Common Mode Range
Input Bias Current
CURRENT SENSE
Current Sense Bias Current
Trip Threshold
Current Sense Delay
Current Sense Comparator
Operating Current
OUTPUT DRIVERS – N-CHANNEL MOSFETS
Low Side Driver Operating Current
High Side Driver Operating Current
Drive Rise Time, Fall Time
High Level Output Voltage
Low Level Output Voltage
OSCILLATOR
PWM Switching Frequency
PWM Switching Frequency
PWM Switching Frequency
Ramp Amplitude
TM
Parameter
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
V
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
UGBW
CCL,
V
V
I
T
Vos
V
F
V
V
V
I
I
I
V
V
VCCL
T
I
CSX
VCX
RAMP
SET
TRIP
CSD
CC
I
SW
CC
OH
OL
RF
DH
SS
IN
DL
V
CX
LX1672-03 Load = 3000pF
LX1672-05 Load = 3000pF
LX1672-06 Load = 3000pF
CC
Integrated Products Division
Static and Dynamic
T
0°C < T
TSSOP Package
MLPQ Package
Common Mode Input Voltage = 1V
I Source = 2mA
I Sink = 10µA
Input Offset Voltage < 20mV
0 and 3.5 V Common Mode Input Voltage
V
Referenced to VSX , V
Current into VSX pins
Static
Static
C
I
I
LX1672-03
LX1672-05
LX1672-06
SOURCE
SINK
A
CSX
L
= 5V, V
= 3000pF
= 25°C
®
= 20mA,
= V
Microsemi
= 20mA,
A
VSX
< 70°C
CCL
– 0.3V , V
V
= 5V, V
CCL
Test Conditions
V
CCL
= 12V
Multiple Output LoadSHARE™ PWM
VSX
= 12V
VSX
CX
= 5V
= 12V, H
= 5V
P
RODUCTION
OX
= L
OX
= 3000pF Load.
D
ATA
0.792
0.784
Min
-6.0
260
255
425
510
≤
4.5
3.5
85
75
70
45
10
-1
-1
.1
T
S
A
HEET
≤
LX1672
Typ
0.15
1.25
70°C except where
200
100
300
350
300
500
600
0.8
3.8
2.5
10
70
16
50
50
11
2
3
Max
0.808
0.816
0.25
250
150
400
340
345
575
690
5.5
6.0
3.5
12
55
1
1
5
LX1672
Units
MHz
KHz
KHz
KHz
mA
mV
mV
mV
mA
mA
mA
V
nS
nS
dB
nA
μA
nS
nS
%
%
%
%
%
V
V
V
V
V
V
V
PP
Page 4