參數(shù)資料
型號: LX1672-05CPW
廠商: MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP
元件分類: 穩(wěn)壓器
英文描述: Multiple Output LoadSHARE PWM
中文描述: 1 A DUAL SWITCHING CONTROLLER, 575 kHz SWITCHING FREQ-MAX, PDSO28
封裝: ROHS COMPLIANT, PLASTIC, TSSOP-28
文件頁數(shù): 4/20頁
文件大?。?/td> 358K
代理商: LX1672-05CPW
Microsemi
Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 4
Copyright
2000
Rev. 0.3m, 2005-04-12
W
M
.
C
LX1672
Multiple Output LoadSHARE PWM
P
RELIMINARY
D
ATA
S
HEET
TM
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
Unless otherwise specified, the following specifications apply over the operating ambient temperature 0
°
C
T
A
70
°
C except where
otherwise noted and the following test conditions: V
CC
= 5V, V
CCL
= 5V, V
CX
= 12V, H
OX
= L
OX
= 3000pF Load.
LX1672
Typ
Parameter
Symbol
Test Conditions
Min
Max
Units
`
`
`
SWITCHING REGULATORS
Input Voltage
Input Voltage
Operation Current
V
CC
4.5
0.792
0.784
-1
-1
5.5
16
0.808
0.816
1
1
250
150
6.0
100
3.5
55
340
V
V
mA
V
CCL,
V
CX
I
CC
Static and Dynamic
T
A
= 25°C
0°C < T
A
< 70°C
TSSOP Package
MLPQ PAckage
LX1672-03 Load = 3000pF
LX1672-05 Load = 3000pF
LX1672-06 Load = 3000pF
Common Mode Input Voltage = 1V
I Source = 2mA
I Sink = 10uA
Input Offset Voltage < 20mV
0 and 3.5 V Common Mode Input Voltage
V
CSX
= V
VSX
– 0.3V , V
VSX
= 5V
Referenced to VSX , V
VSX
= 5V
10
0.8
70
16
5
100
50
300
350
Reference Voltage
V
SS
V
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
%
%
nS
nS
%
%
%
mV
dB
MHz
V
mV
V
nA
μ
A
mV
nS
85
75
70
-6.0
3.8
.1
45
260
Vos
UGBW
V
OH
V
OL
I
IN
I
SET
V
TRIP
T
CSD
I
CSX
Current into VSX pins
2
5
mA
`
`
I
VCCL
I
VCX
T
RF
V
DH
V
DL
Static
Static
C
L
= 3000pF
I
SOURCE
= 20mA,
V
CCL
= 12V
I
SINK
= 20mA,
V
CCL
= 12V
2.5
3
50
11
0.15
mA
mA
nS
V
V
10
0.25
LX1672-03
LX1672-05
LX1672-06
255
425
510
300
500
600
1.25
345
575
690
KHz
KHz
KHz
V
PP
F
SW
V
RAMP
E
L
E
C
T
R
I
C
A
L
S
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