參數(shù)資料
型號: LX1672-03CPW
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, 345 kHz SWITCHING FREQ-MAX, PDSO28
封裝: ROHS COMPLIANT, PLASTIC, TSSOP-28
文件頁數(shù): 5/20頁
文件大?。?/td> 358K
代理商: LX1672-03CPW
Microsemi
Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 5
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, HOX = LOX = 3000pF Load
LX1672
Typ
4.0
4.25
0.1
20
0.15
10
2
0.2
Parameter
Symbol
Test Conditions
Min
3.5
4.0
30
Max
4.5
4.5
Units
`
`
`
UVLO AND SOFT-START (SS)
Start-Up Threshold (V
CX
), (V
CCL
)
Start-Up Threshold (V
CC
)
Hysteresis Vcc
SS Input Resistance
SS Shutdown Threshold
Hiccup Mode Duty Cycle
LINEAR REGULATOR CONTROLLER
Voltage Reference Tolerance
Source Current
Sink Current
DISABLE INPUT
C
SS
= 0.1
μ
F
V
LDFB
= 0.8V, C
OUT
= 330μF
Vout = 10V
Vout = 0.4V
V
V
V
K
V
%
%
mA
mA
R
SS
V
SHDN
I
HDRV
I
LDRV
Pulldown Resistance
Pulldown Resistance
1.0
80
2.5
100
V
Κ
V
K
PWM Disable
DISX
LDO Disable
LDDIS
Note 1 –X = Phase 1,2
Note 2 – System Specification
E
L
E
C
T
R
I
C
A
L
S
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