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參數(shù)資料
| 型號(hào)： | LX13088CLD |
| 廠商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分類(lèi)： | 穩(wěn)壓器 |
| 英文描述： | DUAL SWITCHING CONTROLLER, PDSO10 |
| 封裝： | 3 X 3 MM, ROHS COMPLIANT, PLASTIC, DFN-10 |
| 文件頁(yè)數(shù)： | 6/12頁(yè) |
| 文件大?。?/td> | 422K |
| 代理商： | LX13088CLD |
LX13088
PRODUCTION DATASHEET
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 3
Copyright
2010
Rev. 1.1, 2010-06-08
Dual 1A Step-Down Converters
TM
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.CO
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11
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88
ELECTRI CAL CHARACTERISTICS
Unless otherwise specified, the following specifications apply over the operating ambient temperature of 00C < Temp <700C, and the following
test conditions: 4.5 ≤ VVIN ≤ 5 .5V, VPGND = VAGND ; E/S = High (Static)
Parameter
Symbol
Test Conditions / Comment
Min
Typ
Max
Units
Input Circuitry
Operating Input Voltage
VVIN
4.5
5.0
5.5
V
Under Voltage Lockout
VVIN-UVLO
VVIN Rising
3.0
3.5
4.0
V
UVLO Hysteresis
200
300
400
mV
Input Supply Current
IVIN
TA = 25°C; not switching; 1.2V = VFB1 = VFB2
0.01
0.6
1
mA
E/S = low
0.1
10
A
VMON Input
POR Threshold VMON
VVMON-
POR
VVMON Falling (hysteresis = 20mV)
0.97
1.00
1.03
V
VMON input current
IVMON
VVMON = 1.25V
-100
0
100
nA
VO1 Output
Feedback Voltage
VFB1
0.975
1.000
1.025
V
Peak Current Limit Threshold
ISW1-CT
1.2
1.6
A
PWM Switching Frequency
FSW1
E/S = static logic high
1.3
MHz
Upper FET On Resistance
RDSSW1-U
TJ = 80°C
275
m
TJ = 25°C
250
Lower FET On Resistance
RDSSW1-L
TJ = 80°C
230
TJ = 25°C
200
Soft Start Time
tSS_FB1
0.5
1
2
ms
POR Threshold FB1
VFB1-POR
FB1 Falling (hysteresis = 2% VFB1)
87
89.5
92
%VFB1
Discharge Complete
Threshold
VFB1-DCT
FB1 level where discharge cycle is
terminated
50
75
100
mV
VO2 Output
Feedback Voltage
VFB2
0.975
1.000
1.025
V
Current Limit
ISW2-CT
1.2
1.6
A
PWM Switching Frequency
FSW2
E/S = static logic high
1.3
MHz
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