lx1673 Microsemi Corporation, lx1673 Datasheet - Page 4

• Manufacturer Part Number: lx1673
• Description: High Frequency Pwm Regulator
• Manufacturer: Microsemi Corporation

Copyright © 2004
Rev 1.0, 3/18/2005
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
Operation Current
LDO Operating Current
Reference Voltage
Line Regulation Note 1
Load Regulation Note 1
Dead Time
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 Voltage 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 Voltage
Low Level Voltage
OSCILLATOR
PWM Switching Frequency
Ramp Amplitude
TM
Parameter
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
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
V
UGBW
V
CCL
I
V
LDVCC
T
I
F
V
V
V
V
V
I
I
V
V
T
I
I
VCCL
RAMP
SET
VC1
TRIP
CSD
CC
CS
SW
CC
OS
OH
OL
RF
DH
SS
DL
,V
C1
CC
Integrated Products Division
Static and Dynamic
T
3000pF Load 2 Volt Level
All Frequencies
LX1673-03 Load = 3000pF
LX1673-06 Load = 3000pF
LX1673-09 Load = 3000pF
Common Mode Voltage = 1V
I Source = 2mA
I Sink = 10uA
Input Offset Voltage < 20mV
0 and 3.5 V Common Mode Voltage
V
Referenced to VS , V
Current into VS pin
Static
Static
C
I
I
LX1673-03
LX1673-06
LX1673-09
0°C ≤ T
SOURCE
SINK
A
CS
L
= 5V, V
=25 ° C
= 3000pF
= V
= 20mA,
®
Microsemi
= 20mA,
VS
A
≤ 70°C
– 0.3V , V
CCL
V
= 5V, V
CCL
Test Conditions
V
CCL
= 12V
VS
VS = 5V
= 12V
= 5V
C1
High Frequency PWM Regulator
=12V, LDVCC = 12V, TDRV = BDRV = 3000pF Load.
P
RODUCTION
D
ATA
0.792
0.784
Min
-6.0
260
255
510
765
≤
4.5
3.8
0.1
85
75
70
45
10
-1
-1
T
S
A
HEET
≤
LX1673
Typ
0.8V
0.15
1.25
70°C except where
100
300
350
300
600
900
5.0
2.5
70
16
50
50
11
6
1
2
3
Max
0.808
0.816
1035
0.25
160
150
100
340
345
690
5.5
6.0
3.5
16
55
1
1
5
LX1673
Units
MHz
KHz
mA
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