Datasheet

Micrel MIC5239
December 2007 4
M9999-121007
Absolute Maximum Ratings
(1)
Supply Voltage (V
IN
) ...................................... –20V to +32V
Enable Input Voltage (V
EN
)............................ –0.3V to +32V
Power Dissipation (P
D
)
(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
(4)
SOT-23-3L ............................................................... 2kV
MSOP-8L .............................................................. 1.5kV
Operating Ratings
(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 (
JA
)....................................................... 80°C/W
SOT-223 (
JA
)................................................... 50°C/W
Electrical Characteristics
(5)
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 Parameter Condition Min Typ Max Units
V
OUT
Output Voltage Accuracy Variation from nominal V
OUT
–1
–2
1
2
%
%
V
OUT
/V
OUT
Line Regulation V
IN
= V
OUT
+1V to 30V 0.06 0.5 %
V
OUT
/V
OUT
Load Regulation I
OUT
= 100µA to 500mA
(6)
15 30 mV
I
OUT
= 100µA 50 mV
I
OUT
= 150mA
260
350
400
mV
mV
V Dropout Voltage
(7)
I
OUT
= 500mA 350 mV
V
EN
 2.0V, I
OUT
= 100µA
23
40
45
µA
µA
V
EN
 2.0V, I
OUT
= 150mA 1.3 5 mA
I
GND
Ground Pin Current
V
EN
 2.0V, I
OUT
= 500mA 8.5 15 mA
I
GND(SHDN)
Ground Pin Shutdown V
EN
 0.6V, V
IN
= 30V 0.1 1 µA
I
SC
Short Circuit Current V
OUT
= 0V 850
1200
mA
e
n
Output Noise 10Hz to 100kHz, V
OUT
= 3.0V, C
L
= 3.3µF 160
µVrms
FLAG Output
Low Threshold % of V
OUT
94 % V
FLG
High Threshold % of V
OUT
95 %
V
OL
FLAG Output Low Voltage V
IN
= V
OUT(nom)
– 0.12V
OUT
, I
OL
= 200µA 150 mV
I
LEAK
FLAG Output Leakage V
OH
= 30V 0.1 µA
Enable Input
V
IL
Input Low Voltage regulator off 0.6 V
V
IH
Input High Voltage regulator on 2.0 V
V
EN
= 0.6V, regulator off –1.0
–2.0
0.01
1.0
2.0
µA
µA
V
EN
= 2.0V, regulator on
0.15
1.0
2.0
µA
µA
I
IN
Enable Input Current
V
EN
= 30V, regulator on
0.5
2.5
5.0
µA
µA