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參數(shù)資料
| 型號： | LX8816 |
| 廠商： | Microsemi Corporation |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| 中文描述： | 無電容，NMOS管，150mA的低壓差穩(wěn)壓器的反向電流保護 |
| 文件頁數(shù)： | 3/9頁 |
| 文件大?。?/td> | 375K |
| 代理商： | LX8816 |
Microsemi
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 3
Copyright
2000
Rev. 1.2a, 2002-11-01
W
M
.
C
LX8816
Dual Channel 1A Low Dropout 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
R E C O M M E N D E D O P E R A T I N G C O N D I T I O N S
LX8816-04
Typ
Parameter
Symbol
Min
4.5
0
2.2
1.0
Max
10
5.5
1000
Units
Input Voltage
Output Voltage (adjustable)
Load Current each output (with adequate heat sinking)
Input Capacitor (V
IN
to GND)
Output Capacitor (V
OUT
to GND)
V
IN
V
OUT
V
V
mA
μF
μF
20
10*
*
Size your output capacitor to meet the transient loading requirement. If you have a very dynamic load, a lower ESR and larger value capacitor will
improve the response to these load steps.
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 except where
otherwise noted and the following test conditions: V
IN
= 5V, I
OUT
= 10mA, C
1
= 10
μ
F (Tantalum), C
2
= C
3
= 4.7
μ
F (Tant.), & T
J
= T
A
using
low duty cycling methods.
LX8816-04
Typ
1.225
Parameter
Symbol
Test Conditions
Min
Max
1.273
2.5
Units
`
Adjustable Output (Output 1)
Reference Voltage
Line Regulation
Line Regulation
Load Regulation
Dropout Voltage
Current Limit
V
REF
V
1
(V
IN
)
V
1
(V
IN
)
V
REF
(I
1
)
V
I
OUT (MAX)
5mA < I
1
< 1A, 4.75V < V
IN
< 10V
4.75V < V
IN
< 5.5V, I
OUT
= 5mA
4.50V < V
IN
< 10V, I
OUT
= 5mA
5mA < I
1
< 1A, V
IN
= 4.75V
I
LOAD
= 1A,
V
1
= -2%
Note 1, The external resistor divider current can be
included in this requirement.
Bias current flows into part.
1.25
1.5
V
mV
0.17
0.22
%V
0.04
0.15
%V
1.2
1.3
V
1.0
1.4
A
Minimum Load Current
I
L
2
3
mA
Adjust Pin Bias Current
`
Fixed Output (Output 2)
Output Voltage
Line Regulation
Line Regulation
Load Regulation
Dropout Voltage
Current Limit
Minimum Load Current
`
Entire Regulator
Quiescent Current
Quiescent Current
Ripple Rejection
RMS Output Noise (% of V
OUT
)
Thermal Shutdown
Note 1: Minimum load current is defined as the amount of output current required to maintain regulation.
I
ADJ
0.12
1
μ
A
V
2
5mA < I
2
< 1A, 4.75V < V
IN
< 10V
4.75V < V
IN
< 5.5V, I
OUT
= 5mA
4.50V < V
IN
< 10V, I
OUT
= 5mA
5mA < I
2
< 1A, V
IN
= 4.75V
I
LOAD
= 1A,
V
2
= -2%
3.234
3.30
3.3825
V
V
2
(V
IN
)
V
2
(V
IN
)
V
2
(I
2
)
V
I
OUT (MAX)
I
L
6
8
mV
0.17
0.22
%V
2.6
6
mV
1.2
1.3
V
1.0
1.4
A
Note 1
0
mA
I
Q
IQ
V
IN
< 10V, I
1
= 5mA, I
2
= 5mA
V
IN
< 10V, I
1
= 1A, I
2
= 1A
f=120Hz, V
IN
= 5V
10Hz < f < 10kHz
2.6
3.8
mA
3.5
6
mA
PSRR
60
75
dB
V
OUT (RMS)
T
JSD
0.003
%V
°
C
135
140
E
L
E
C
T
R
I
C
A
L
S
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