參數(shù)資料
型號： LX8580A-00CDF
廠商： MICROSEMI CORP-SCOTTSDALE
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： 7.5A Very Low Dropout Positive Regulator
中文描述： ADJUSTABLE POSITIVE LDO REGULATOR, 1.3 V DROPOUT, PSSO5
封裝： ROHS COMPLIANT, PLASTIC, S-PACK, 5 PIN
文件頁數(shù)： 3/8頁
文件大?。?/td> 172K
代理商： LX8580A-00CDF
Microsemi
Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 3
Copyright
2001
Rev. 1.4, 2003-01-06
W
M
.
C
LX8580A
7.5A Very Low Dropout Positive Regulator
P
RODUCTION
D
ATA
S
HEET
I N T E G R A T E D P R O D U C T S
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
≤
125
°
C. Low duty cycle
pulse testing techniques are used which maintains junction and case temperatures are equal to the ambient temperature.
LX8580A
Typ
1.250
Parameter
Symbol
Test Conditions
Min
1.243
Max
1.257
Units
V
CTRL
= 2.75V, V
PWR
= 2V, I
LOAD
= 10mA, T
A
=25
°
C
V
CTRL
= 2.7V to 6V, V
PWR
= 1.75V to 5.5V
I
LOAD
= 10mA to 4A
V
CTRL
= 2.7V to 6V, V
PWR
= 2.05V to 5.5V
I
LOAD
= 10mA to 7.5A
V
CTRL
= 2.5V to 10V, V
PWR
= 1.75V to 5.5V
I
LOAD
= 10mA, T
A
=25
°
C
V
CTRL
= 2.5V to 10V, V
PWR
= 1.75V to 5.5V
I
LOAD
= 10mA
V
CTRL
= 2.75V, V
PWR
= 2.1V I
LOAD
= 10mA to 7.5A
(V
ADJ
= 0)
V
OUT
(Pwr)
30ms Pulse
R
θ
JT
Control Circuitry/Power Transistor
V
CTRL
= V
PWR
= 3.75V Avg, V
RIPPLE
= 1V
P-P
V
ADJ
= 0, I
OUT
= 4A
V
CTRL
= 2.75V, V
PWR
= 2.05V, I
LOAD
= 100mA
V
CTRL
= 2.75V, V
PWR
= 2.05V, I
LOAD
= 3A
V
CTRL
= 2.75V, V
PWR
= 1.75V, I
LOAD
= 3A
V
CTRL
= 2.75V, V
PWR
= 2.05V, I
LOAD
= 7.5A
V
CTRL
= 2.75V, V
PWR
= 2.05V,
I
LOAD
= 0mA, V
ADJ
V
CTRL
= 2.75V, V
PWR
= 2.05V,
V
OUT
= 100mV,
V
ADJ
= 0
V
PWR
= 2.05, I
LOAD
= 100mA
V
PWR
= 2.05, I
LOAD
= 1.5A
V
PWR
= 2.05, I
LOAD
= 3A
V
PWR
= 2.05, I
LOAD
= 5A
V
PWR
= 2.05, I
LOAD
= 7.5A
V
CTRL
= 2.75V, I
LOAD
= 100mA
V
CTRL
= 2.75V, I
LOAD
= 1.5A, T
A
= 85
°
C
V
CTRL
= 2.75V, I
LOAD
= 1.5A
V
CTRL
= 2.75V, I
LOAD
= 3A, T
A
= 85
°
C
V
CTRL
= 2.75V, I
LOAD
= 3A
V
CTRL
= 2.75V, I
LOAD
= 5A, T
A
= 85
°
C
V
CTRL
= 2.75V, I
LOAD
= 5A
V
CTRL
= 2.75V, I
LOAD
= 7.5A, T
A
= 85
°
C
V
CTRL
= 2.75V, I
LOAD
= 7.5A
V
CTRL
= 5V, V
PWR
= 3.3V, V
ADJ
= 0
Note 3
1.237
1.250
1.263
Reference Voltage
V
REF
1.237
1.250
1.263
V
1
3
mV
Line Regulation
V
REF
(V
IN
)
2
6
mV
Load Regulation
V
REF
(I
OUT
)
2
7
mV
Thermal Regulation
Thermal Resistance
0.002
0.65
0.020
2.70
%/W
°
C/W
Ripple Rejection
60
80
dB
3
30
33
70
10
50
55
120
V
CTRL
Pin Current (Note 2)
I
CTRL
mA
Adjust Pin Current
I
ADJ
20
60
100
μ
A
Current Limit
I
OUT(MAX)
7.7
9
A
0.90
1.00
1.05
1.06
1.10
0.03
0.10
0.13
0.20
0.25
0.38
0.40
0.52
0.59
1.15
1.15
1.18
1.20
1.30
0.05
0.13
0.15
0.25
0.28
0.43
0.45
0.65
0.70
Dropout Voltage (Control Section)
Minimum V
CTRL
(Note 1)
(V
PWR
- V
OUT
)
V
CTRL
-V
OUT
V
Dropout Voltage (Power Section)
Minimum V
PWR
(Note 1)
(V
PWR
- V
OUT
(V
ADJ
= 0)
V
PWR
-V
OUT
V
Minimum Load Current
5
10
mA
Note 1: Dropout is caused by either minimum control voltage (V
CTRL
) or minimum power voltage (V
PWR
). 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.
E
L
E
C
T
R
I
C
A
L
S
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