MIC49150
Micrel
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
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
(θ
JA
) ...................................................... 80°C/W
S-PAK(θ
JC
) ............................................................ 2°C/W
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
Output Voltage Accuracy
Line Regulation
Load Regulation
Dropout Voltage (V
IN
- V
OUT
)
Conditions
At 25°C
Over temperature range
V
IN
= 3.0V to 6.5V
I
L
= 0mA to 1.5A
I
L
= 750mA
I
L
= 1.5A
Dropout Voltage (V
BIAS
- V
OUT
)
Note 4
Ground Pin Current,
Note 5
I
L
= 750mA
I
L
= 1.5A
I
L
= 0mA
I
L
= 1.5A
V
EN
≤
0.6V, (I
BIAS
+ I
CC
),
Note 6
I
L
= 0mA
I
L
= 1.5A
Current Limit
Enable Input, Note 6
Enable Input Threshold
(Fixed Voltage only)
Enable Pin Input Current
Reference
Reference Voltage
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.
Min
–1
–2
–0.1
Typ
Max
+1
+2
Units
%
%
%/V
%
%
mV
mV
mV
mV
V
V
V
mA
mA
mA
µA
µA
mA
mA
mA
A
A
0.01
0.2
130
280
1.3
1.65
15
15
0.5
9
32
+0.1
1
1.5
200
300
400
500
1.9
2.1
25
30
1
2
15
25
3.5
4
Ground Pin Current in Shutdown
Current thru V
BIAS
MIC49150
1.6
2.3
Regulator enable
Regulator shutdown
Independent of state
1.6
0.6
0.1
1
V
V
µA
0.891
0.882
0.9
0.909
0.918
V
V
January 2002
3
MIC49150
MICREL [ MICREL SEMICONDUCTOR ]
