
M
12V, Ultra-Low I
Q
, Low-Dropout
Linear Regulators
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
IN to GND................................................................-14V to +14V
SHDN
to GND..............................................-0.3V to (V
IN
+ 0.3V)
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V
IN
= V
OUT
+ 1V,
SHDN
= IN, I
OUT
= 1mA, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at
T
A
= +25°C.) (Note 1)
CONDITIONS
V
IN
Input Voltage Range
Supply Current
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
(-0.3V to + 0.3V when V
IN
< 0V)
OUT, FB (MAX1725 only) to GND...................-0.3V to +6V when
V
IN
>5.7V; -0.3V to (V
IN
+ 0.3V) when 0V <
V
IN
< 5.7V; -0.3V to +0.3V when V
IN
< 0V
OUT Continuous Current...................................................200mA
OUT Short Circuit...........................................................Indefinite
Continuous Power Dissipation (T
A
= +70°C)
5-Pin SOT23-5 (derate 7.1mW/°C above +70°C) ........571mW
θ
JA
...............................................................................+140°C/W
Junction Temperature......................................................+150°C
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
SHDN
= 0V, V
IN
= 12V, V
OUT
= 0V
MAX1725 only
MAX1725 only (Note 3)
T
A
= +25°C
T
A
= 0°C to +85°C
T
A
= -40°C to +85°C
V
IN
= 12V
(Note 2)
V
IN
= -12V, V
SHDN
= 0V
Temperature rising
V
IN
= 2.5V to 12V
V
IN
= 12V, V
OUT
= 0V
V
FB
= 1.25V
I
OUT
= 20mA for V
OUT
≥
2.5V, I
OUT
= 10mA for
V
OUT
< 2.5V, not applicable for V
OUT
< 1.9V
V
IN
= (V
OUT
+ 1V) or 3V (Note 4)
V
IN
= 2.5V or (V
OUT
+ 0.5V) to 12V
I
OUT
= 1mA to 20mA, V
IN
= (V
OUT
+ 1V)
or 3V (min)
V
SHDN
= 0V to 12V
°C
15
Thermal-Shutdown Hysteresis
μA
°C
0.01
150
10
IN Reverse Leakage Current
Thermal-Shutdown Threshold
1.5
nA
-20
2
+20
I
FB
FB Input Bias Current
(MAX1725 only)
0.1
nA
-50
+50
I
SHDN
SHDN
Input Bias Current
μA
V
V
0.7
2
5
I
IN(
SHDN
)
V
OUT
V
FB
Shutdown Supply Current
OUT Voltage Range
FB Voltage
μA
2
4.5
I
IN
V
2.5
12
V
2
V
IH
V
IL
mA
40
I
SC
Foldback Current Limit
mV
300
600
V
DO
Dropout Voltage (Note 4)
mA
20
80
I
OUT
Maximum OUT Current
1.5
%
-1.5
-2
-3
1.5
+2
+3
OUT Voltage Accuracy (Note 3)
%/V
0.01
0.3
V
LNR
Line Regulation
%/mA
0.015
0.15
V
LDR
Load Regulation
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
T
A
= +25°C
T
A
= +85°C
T
A
= +25°C
T
A
= +85°C
1.245
0.5
SHDN
Input Threshold