MIC5239
Micrel
Absolute Maximum Ratings
(Note 1)
Supply Voltage (V
IN
) ..................................... –20V to +32V
Enable Input Voltage (V
EN
) .......................... –0.3V to +32V
Power Dissipation (P
D
),
Note 3
............... Internally Limited
Junction Temperature (T
J
) ....................... –40°C to +125°C
Storage Temperature (T
S
) ....................... –65°C to +150°C
Lead Temperature (soldering, 5 sec.) ....................... 260°C
ESD Rating,
Note 4
Operating Ratings
(Note 2)
Supply Voltage (V
IN
) ........................................ 2.3V to 30V
Enable Input Voltage (V
EN
) ................................. 0V to 30V
Junction Temperature (T
J
) ....................... –40°C to +125°C
Package Thermal Resistance
MSOP
(θ
JA
) ......................................................... 80°C/W
SOT-223
(θ
JA
) ..................................................... 50°C/W
Electrical Characteristics
V
IN
= V
OUT
+ 1V; V
EN
≥
2.0V; I
OUT
= 100µA; T
J
= 25°C,
bold
values indicate –40°C
≤
T
J
≤
+125°C; unless noted.
Symbol
V
OUT
Parameter
Output Voltage Accuracy
Conditions
variation from nominal V
OUT
Min
–1
–2
Typ
Max
1
+2
Units
%
%
∆V
OUT
/V
OUT
∆V
OUT
/V
OUT
∆V
Line Regulation
Load Regulation
Dropout Voltage,
Note 6
V
IN
= V
OUT
+ 1V to 30V
I
OUT
= 100µA to 500mA,
Note 5
I
OUT
= 100µA
I
OUT
= 150mA
I
OUT
= 500mA
0.06
0.5
50
260
350
23
1.3
8.5
0.1
850
160
0.5
1
%
%
mV
350
400
mV
mV
mV
µA
µA
mA
mA
µA
mA
µVrms
I
GND
Ground Pin Current
V
EN
≥
2.0V, I
OUT
= 100µA
V
EN
≥
2.0V, I
OUT
= 150mA
V
EN
≥
2.0V, I
OUT
= 500mA
40
45
5
15
1
1200
I
GND(SHDN)
I
SC
e
n
FLAG Output
V
FLG
V
OL
I
LEAK
Enable Input
V
IL
V
IH
I
IN
Ground Pin in Shutdown
Short Circuit Current
Output Noise
V
EN
≤
0.6V, V
IN
= 30V
V
OUT
= 0V
10Hz to 100kHz, V
OUT
= 3.0V, C
L
= 3.3µF
% of V
OUT
% of V
OUT
V
IN
= V
OUT(nom)
– 0.12V
OUT
, I
OL
= 200µA
V
OH
= 30V
regulator off
regulator on
V
EN
= 0.6V, regulator off
V
EN
= 2.0V, regulator on
V
EN
= 30V, regulator on
2.0
–1.0
–2.0
Low Threshold
High Threshold
FLAG Output Low Voltage
FLAG Output Leakage
94
95
150
0.1
%
%
mV
µA
Input Low Voltage
Input High Voltage
Enable Input Current
0.6
V
V
µA
µA
µA
µA
µA
µA
0.01
0.15
0.5
1.0
2.0
1.0
2.0
2.5
5.0
Note 1.
Note 2.
Note 3:
Exceeding the absolute maximum rating may damage the device.
The device is not guaranteed to function outside its operating rating.
The maximum allowable power dissipation of any T
A
(ambient temperature) is P
D(max)
= (T
J(max)
– T
A
)
÷ θ
JA
. Exceeding the maximum
allowable power dissipation will result in excessive die termperature, and the regulator will go into thermal shutdown. The
θ
JA
of the MIC5239-
x.xBMM (all versions) is 80°C/W, the MIC5239-x.xBM (all versions) is 63°C/W, and the MIC5239-x.xBS (all versions) is 50°C/W mounted on a
PC board (see “Thermal Characteristics” for further details).
January 2002
3
MIC5239
MICREL [ MICREL SEMICONDUCTOR ]
