Micrel, Inc.
MIC49150
Absolute Maximum Ratings
(1)
Supply Voltage (V
IN
) .........................................................8V
Bias Supply Voltage (V
BIAS
)..............................................8V
Enable Input Voltage (V
EN
)...............................................8V
Power Dissipation .....................................Internally Limited
ESD Rating
(3)
.................................................................. 4kV
Operating Ratings
(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 6.5V
Junction Temperature (T
J
) ..................–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
(4)
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, unless noted
(5)
.
Parameter
Output Voltage Accuracy
Line Regulation
Load Regulation
Dropout Voltage (V
IN
- V
OUT
)
Condition
At 25°C
Over temperature range
V
IN
= V
OUT
+1V to 6.5V
I
L
= 0mA to 1.5A
I
L
= 750mA
I
L
= 1.5A
Min
–1
–2
Typ
Max
+1
+2
Units
%
%
%/V
%
%
mV
mV
mV
mV
V
V
V
mA
mA
mA
µA
µA
mA
mA
mA
A
A
V
V
µA
V
V
–0.1
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
3.4
4
Dropout Voltage (V
BIAS
- V
OUT
),
Note 5
Ground Pin Current,
Note 6
I
L
= 750mA
I
L
= 1.5A
I
L
= 0mA
I
L
= 1.5A
V
EN
≤
0.6V, (I
BIAS
+ I
CC
),
Note 7
I
L
= 0mA
I
L
= 1.5A
Ground Pin Current in
Shutdown
Current thru V
BIAS
Current Limit
MIC49150
1.6
2.3
Enable Input (Note 7)
Enable Input Threshold
(Fixed Voltage only)
Enable Pin Input Current
Regulator enable
Regulator shutdown
Independent of state
0.891
0.882
1.6
0.6
0.1
0.9
1
0.909
0.918
Reference
Reference Voltage
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5kΩ in series with 100pF.
4. Specification for packaged product only.
5. For V
OUT
≤1V,
V
BIAS
dropout specification does not apply due to a minimum 3V V
BIAS
input.
6. 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
.
7. Fixed output voltage versions only.
November 2006
3
M9999-111306
MICREL [ MICREL SEMICONDUCTOR ]
