Micrel, Inc.
MIC37139
Absolute Maximum Ratings
(1)
Supply Voltage (V
IN
) ......................................................6.5V
Enable Input Voltage (V
EN
)............................................6.5V
Power Dissipation .....................................Internally Limited
Junction Temperature (T
J
) ..................–40°C
≤
T
J
≤
+125°C
Lead Temperature (soldering, 5 sec.)........................ 260°C
Storage Temperature (T
s
) ...................–65°C
≤
T
J
≤
+150°C
ESD Rating
(3)
Operating Ratings
(2)
Supply Voltage (V
IN
)....................................... 2.25V to 6.0V
Enable Input Voltage (V
EN
).................................. 0V to 6.0V
Junction Temperature (T
J
) ..................–40°C
≤
T
J
≤
+125°C
Maximum Power Dissipation
(4)
Package Thermal Resistance
SOT-223 (θ
JC
) ....................................................50°C/W
Electrical Characteristics
(5)
T
A
= 25°C with V
IN
= V
OUT
+ 1V; V
EN
= V
IN
;
bold
values indicate –40°C< T
J
< +125°C, unless noted.
Parameter
Output Voltage Accuracy
Output Voltage Line Regulation
Output Voltage Load Regulation
VIN – VOUT; Dropout Voltage
Ground Pin Current
(7)
Ground Pin Current in Shutdown
Current Limit
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.
4. P
D(max)
= (T
J(max)
– T
A
) ÷
θ
JA
, where
θ
JA
, depends upon the printed circuit layout. See “Applications Information.”
5. Specification for packaged product only.
6. V
DO
= V
IN
– V
OUT
when V
OUT
decreased to 98% of its nominal output voltage with V
IN
= V
OUT
+1V. For output voltages below 1.75V, dropout voltage
specification does not apply due to a minimum input operating voltage of 2.25V.
7. I
GND
is the quiescent current. I
IN
= I
GND
+ I
OUT
.
(6)
Condition
I
L
= 10mA
10mA < I
OUT
< I
L(max)
, V
OUT
+ 1
≤
V
IN
≤
6V
V
IN
= V
OUT
+1.0V to 6.0V
I
L
= 10mA to 1.5A
I
L
= 750mA
I
L
= 1.5A
I
L
= 1.5A
V
IL
≤
0.5V, V
IN
= V
OUT
+ 1V
V
OUT
= 0
Min
–1
–2
Typ
Max
+1
+2
Units
%
%
%
%
mV
mV
mA
µA
A
0.06
0.2
0.5
1
350
500
17
1.0
2.25
30
4
November 2009
3
M9999-110209
MICREL [ MICREL SEMICONDUCTOR ]
