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参数资料
| 型号： | LX8580A-00CP |
| 厂商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分类： | Adjustable Positive Single Output LDO Regulator |
| 英文描述： | ADJUSTABLE POSITIVE LDO REGULATOR, 1.3 V DROPOUT, PSFM5 |
| 封装： | PLASTIC, TO-220, 5 PIN |
| 文件页数： | 4/9页 |
| 文件大小： | 138K |
| 代理商： | LX8580A-00CP |
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 4
Copyright
2001
Rev. 1.4b, 2005-05-04
WWW
.Microse
m
i
.CO
M
LX8580A
7.5A Very Low Dropout Positive Regulator
PRODUCTION DATA SHEET
TM
ELECTRI CAL CHA RACTERI S TI CS
Unless otherwise specified, the following specifications apply over the operating ambient temperature 0
°C
≤ T
A
≤ 125°C. Low duty cycle
pulse testing techniques are used which maintains junction and case temperatures are equal to the ambient temperature.
LX8580A
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
VCTRL = 2.75V, VPWR = 2V, ILOAD = 10mA, TA=25
°C
1.243
1.250
1.257
VCTRL = 2.7V to 6V, VPWR = 1.75V to 5.5V
ILOAD = 10mA to 4A
1.237
1.250
1.263
Reference Voltage
VREF
VCTRL = 2.7V to 6V, VPWR = 2.05V to 5.5V
ILOAD = 10mA to 7.5A
1.237
1.250
1.263
V
VCTRL = 2.5V to 10V, VPWR = 1.75V to 5.5V
ILOAD = 10mA, TA=25
°C
1
3
mV
Line Regulation
VREF(VIN)
VCTRL = 2.5V to 10V, VPWR = 1.75V to 5.5V
ILOAD = 10mA
2
6
mV
Load Regulation
VREF(IOUT)
VCTRL = 2.75V, VPWR = 2.1V ILOAD = 10mA to 7.5A
(VADJ = 0)
2
7
mV
Thermal Regulation
VOUT(Pwr) 30ms Pulse
0.002
0.020
%/W
Thermal Resistance
RθJT
Control Circuitry/Power Transistor
0.65
2.70
°C/W
Ripple Rejection
VCTRL = VPWR = 3.75V Avg, VRIPPLE = 1VP-P
VADJ = 0, IOUT = 4A
60
80
dB
VCTRL = 2.75V, VPWR = 2.05V, ILOAD = 100mA
3
10
VCTRL = 2.75V, VPWR = 2.05V, ILOAD = 3A
30
50
VCTRL = 2.75V, VPWR = 1.75V, ILOAD = 3A
33
55
VCTRL Pin Current (Note 2)
ICTRL
VCTRL = 2.75V, VPWR = 2.05V, ILOAD = 7.5A
70
120
mA
Adjust Pin Current
IADJ
VCTRL = 2.75V, VPWR = 2.05V,
ILOAD = 0mA, VADJ = 0
20
60
100
A
Current Limit
IOUT(MAX)
VCTRL = 2.75V, VPWR = 2.05V,
VOUT = 100mV,
VADJ = 0
7.7
9
A
VPWR = 2.05, ILOAD = 100mA
0.90
1.15
VPWR = 2.05, ILOAD = 1.5A
1.00
1.15
VPWR = 2.05, ILOAD = 3A
1.05
1.18
VPWR = 2.05, ILOAD = 5A
1.06
1.20
Dropout Voltage (Control Section)
Minimum VCTRL (Note 1)
(VPWR - VOUT)
VCTRL-VOUT
VPWR = 2.05, ILOAD = 7.5A
1.10
1.30
V
VCTRL = 2.75V, ILOAD = 100mA
0.03
0.05
VCTRL = 2.75V, ILOAD = 1.5A, TA = 85
°C
0.10
0.13
VCTRL = 2.75V, ILOAD = 1.5A
0.13
0.15
VCTRL = 2.75V, ILOAD = 3A, TA = 85
°C
0.20
0.25
VCTRL = 2.75V, ILOAD = 3A
0.25
0.28
VCTRL = 2.75V, ILOAD = 5A, TA = 85
°C
0.38
0.43
VCTRL = 2.75V, ILOAD = 5A
0.40
0.45
VCTRL = 2.75V, ILOAD = 7.5A, TA = 85
°C
0.52
0.65
Dropout Voltage (Power Section)
Minimum VPWR (Note 1)
(VPWR - VOUT)
(VADJ = 0)
VPWR-VOUT
VCTRL = 2.75V, ILOAD = 7.5A
0.59
0.70
V
Minimum Load Current
VCTRL = 5V, VPWR = 3.3V, VADJ = 0
Note 3
5
10
mA
Note 1: Dropout is caused by either minimum control voltage (VCTRL) or minimum power voltage (VPWR). Both parameters are specified with respect to
the output voltage. The specifications represent the minimum input/output voltage required to maintain 1% regulation.
Note 2: The control pin current is the drive current required for the output transistor. This current will track output current with roughly a 1:100 ratio.
The minimum value is equal to the quiescent current of the device.
Note 3: Minimum load current is defined as the amount of output current required to maintain regulation. Typically this current provides the bias to the
external resistor divider network used to set the output voltage.
EE
LL
EE
CC
TT
RR
IICC
AA
LL
SS
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