Micrel, Inc.
MIC37501/37502
Absolute Maximum Ratings
(1)
Supply Voltage (V
IN
) ................................................. 6.5V
Enable Input Voltage (V
EN
) ....................................... 6.5V
Power Dissipation(P
D
) .......................... Internally Limited
Junction Temperature(T
J
) ............... –40°C
≤
T
J
≤
+125°C
Storage Temperature(T
S
) ............... –65°C
≤
T
J
≤
+150°C
Lead Temperature (soldering, 5 sec.) ....................260°C
ESD Rating
(3)
...............................................................2kV
Operating Ratings
(2)
Supply Voltage (V
IN
) ......................................... 2.3V to 6.0V
Enable Input Voltage (V
EN
) .................................. 0V to 6.0V
Junction Temperature Range(T
J
) ....... –40°C
≤
T
J
≤
+125°C
Maximum Power Dissipation .....................................Note
4
Package Thermal Resistance
S-Pak (θ
JC
) .......................................................... 2°C/W
TO-263 (θ
JC
) ....................................................... 2°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 otherwise noted.
Parameter
Output Voltage Accuracy
Output Voltage Line Regulation
Output Voltage Load Regulation
V
IN
– V
OUT
, Dropout Voltage
Ground Pin Current
Current Limit
Start-up Time
(7)
(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 5A
I
L
= 2.5A
I
L
= 5A
I
L
= 5A
V
IL
< 0.5V, V
IN
= V
OUT
+ 1V
V
OUT
= 0
V
EN
= V
IN
, I
OUT
= 10mA, C
OUT
= 100µF
Regulator enable
Regulator shutdown
V
IL
< 0.8V (Regulator shutdown)
V
IH
> 2.25V (Regulator enabled)
Min
–1
Typ
Max
+1
Units
%
%
%
%
mV
mV
mA
µA
A
µs
V
–2
0.06
0.2
330
57
1.0
+2
0.5
1
350
500
100
11
500
Ground Pin Current in Shutdown
5
7.5
170
Enable Input
Enable Input Threshold
Enable Pin Input Current
2.25
0.8
2
4
1
15
30
75
1
2
(8)
V
µA
µA
µA
µA
µA
µA
mV
mV
%
%
Flag Output
I
FLG(LEAK)
V
FLG(LO)
V
FLG
V
OH
= 6V
V
IN
= 2.25V, I
OL
= 250µA
210
93
2
99.2
1.228
1.215
1.240
40
1.252
1.265
80
120
400
500
Low threshold, % of V
OUT
below nominal
Hysteresis
High threshold, % of V
OUT
below nominal
%
V
V
nA
nA
MIC37502 Only
Reference Voltage
Adjust Pin Bias Current
February 2007
3
M9999-020507
MICREL [ MICREL SEMICONDUCTOR ]
