參數(shù)資料
型號: MIC49150-1.5BMM
廠商: MICREL INC
元件分類: 基準電壓源/電流源
英文描述: 1.5A Low Voltage LDO Regulator w/Dual Input Voltages
中文描述: 1.5 V FIXED POSITIVE LDO REGULATOR, 0.5 V DROPOUT, PDSO8
封裝: POWER, MSOP-8
文件頁數(shù): 3/12頁
文件大小: 94K
代理商: MIC49150-1.5BMM
January 2002
3
MIC49150
MIC49150
Absolute Maximum Ratings
(Note 1)
Supply Voltage (V
IN
) .......................................................8V
Bias Supply Voltage (V
BIAS
)............................................8V
Enable Input Voltage (V
EN
) .............................................8V
Power Dissipation .................................... Internally Limited
ESD Rating,
Note 3
......................................................2kV
Micrel
Electrical Characteristics
T
A
= 25
°
C with V
BIAS
= V
OUT
+2.1V; V
IN
= V
OUT
+ 1V;
bold
values indicate
40
°
C < T
J
< +125
°
C,
Note 4
; unless otherwise specified.
Parameter
Conditions
Min
Typ
Max
Units
Output Voltage Accuracy
At 25
°
C
Over temperature range
1
2
+1
+2
%
%
Line Regulation
V
IN
= 3.0V to 6.5V
I
L
= 0mA to 1.5A
0.1
0.01
+0.1
%/V
Load Regulation
0.2
1
%
%
1.5
Dropout Voltage (V
IN
- V
OUT
)
I
L
= 750mA
130
200
300
400
500
mV
mV
mV
mV
I
L
= 1.5A
280
Dropout Voltage (V
BIAS
- V
OUT
)
Note 4
I
L
= 750mA
I
L
= 1.5A
1.3
1.65
V
V
V
1.9
2.1
Ground Pin Current,
Note 5
I
L
= 0mA
I
L
= 1.5A
15
15
mA
mA
mA
25
30
Ground Pin Current in Shutdown
V
EN
0.6V, (I
BIAS
+ I
CC
),
Note 6
0.5
1
2
μ
A
μ
A
Current thru V
BIAS
I
L
= 0mA
9
15
25
mA
mA
mA
I
L
= 1.5A
MIC49150
32
Current Limit
1.6
2.3
3.5
4
A
A
Enable Input, Note 6
Enable Input Threshold
(Fixed Voltage only)
Regulator enable
Regulator shutdown
1.6
V
V
0.6
Enable Pin Input Current
Independent of state
0.1
1
μ
A
Reference
Reference Voltage
0.891
0.882
0.9
0.909
0.918
V
V
Note 1.
Note 2.
Note 3.
Note 4.
Note 5.
Note 6.
Exceeding the absolute maximum rating may damage the device.
The device is not guaranteed to function outside its operating rating.
Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
For V
OUT
1V, V
BIAS
dropout specification does not apply due to a minimum 3V V
BIAS
input.
I
GND
= I
BIAS
+ (I
IN
I
OUT
). At high loads, input current on V
IN
will be less than the output current, due to drive current being supplied by V
BIAS
.
Fixed output voltage versions only.
Operating Ratings
(Note 2)
Supply Voltage (V
IN
) ....................................... 1.4V to 6.5V
Bias Supply Voltage (V
BIAS
)............................... 3V to 6.5V
Enable Input Voltage (V
EN
) .................................. 0V to V
IN
Junction Temperature Range.............
40
°
C
T
J
+125
°
C
Package Thermal Resistance
MSOP-8
JA
)......................................................80
°
C/W
S-PAK
JC
)............................................................2
°
C/W
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