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參數(shù)資料
| 型號(hào)： | MIC49300-1.5BR |
| 廠商： | MICREL INC |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 3.0A LOW VOLTAGE LDO REGULATOR W/DUAL INPUT VOLTAGES |
| 中文描述： | 1.5 V FIXED POSITIVE LDO REGULATOR, 0.4 V DROPOUT, PSSO5 |
| 封裝： | SPAK-5 |
| 文件頁(yè)數(shù)： | 3/8頁(yè) |
| 文件大小： | 68K |
| 代理商： | MIC49300-1.5BR |
October 2003
3
MIC49300
MIC49300
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, fixed voltage options
Over temperature range
–1
–2
+1
+2
%
%
Line Regulation
V
IN
= 2.0V to 6.5V
I
L
= 0mA to 3A
I
L
= 1.5A
I
L
= 3A
I
L
= 3A
–0.1
0.01
+0.1
%/V
Load Regulation
0.2
0.5
%
Dropout Voltage (V
IN
– V
OUT
)
125
200
mV
280
400
mV
Dropout Voltage (V
BIAS
– V
OUT
)
Note 4
1.5
2.1
V
Ground Pin Current,
Note 5
I
L
= 0mA
I
L
= 3A
V
EN
≤
0.6V, (I
BIAS
+ I
CC
),
Note 6
I
L
= 0mA
I
L
= 3A
V
OUT
= 0V
25
mA
25
50
mA
Ground Pin Current in Shutdown
0.07
5
μ
A
Current thru V
BIAS
20
35
mA
50
150
mA
Current Limit
6.5
9
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
0.1
1.0
μ
A
Reference
Reference Voltage
Adjustable option only
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
S-PAK
(
θ
JC
)............................................................2
°
C/W
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