LP3963/LP3966
Absolute Maximum Ratings
I
OUT
(Survival)
Maximum Voltage for ERROR
Pin
Maximum Voltage for SENSE Pin
Short Circuit Protected
V
IN
+0.3V
V
OUT
+0.3V
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Storage Temperature Range
Lead Temperature
(Soldering, 5 sec.)
ESD Rating (Note 3)
Power Dissipation (Note 2)
Input Supply Voltage (Survival)
Shutdown Input Voltage
(Survival)
Output Voltage (Survival), (Note
260˚C
2 kV
Internally Limited
−0.3V to +7.5V
−0.3V to V
IN
+0.3V
−0.3V to +7.5V
−65˚C to +150˚C
Operating Ratings
Input Supply Voltage (Operating),
Shutdown Input Voltage
(Operating)
Maximum Operating Current (DC)
Operating Junction Temp. Range
2.5V to 7.0V
−0.3V to V
IN
+0.3V
3A
−40˚C to +125˚C
Electrical Characteristics
LP3963/LP3966
Limits in standard typeface are for T
J
= 25˚C, and limits in
boldface type
apply over the
full operating temperature range.
Unless otherwise specified: V
IN
= V
O(NOM)
+ 1.5V, I
L
= 10 mA, C
OUT
=33µF, V
SD
= V
IN
-0.3V.
Symbol
Parameter
Output Voltage
Tolerance
Adjust Pin Voltage (ADJ
version)
Output Voltage Line
Regulation (Note 8)
Output Voltage Load
Regulation
Dropout Voltage
Conditions
V
OUT
+1.5V
<
V
IN
<
7.0V
10 mA
<
I
L
<
3A
10 mA
≤
I
L
≤
3A
V
OUT
+1.5V
≤
V
IN
≤
7.0V
V
OUT
+1.5V
<
V
IN
<
7.0V
10 mA
<
I
L
<
3A
Typ
0
LP3963/6
Min
-1.5
-3.0
1.198
1.180
Max
+1.5
+3.0
1.234
1.253
%
Units
V
O
V
ADJ
∆V
OL
∆V
O
/
∆I
OUT
1.216
0.02
0.06
0.06
0.01
80
800
5
6
15
V
%
%
V
IN
- V
OUT
I
L
= 300 mA
I
L
= 3A
I
L
= 300 mA
100
120
1000
1200
9
10
14
15
25
75
4
3.5
mV
I
GND
Ground Pin Current In
Normal Operation Mode
Ground Pin Current In
Shutdown Mode
Peak Output Current
I
L
= 3A
V
SD
≤
0.2V
mA
I
GND
µA
I
O(PK)
4.5
A
SHORT CIRCUIT PROTECTION
I
SC
Tsh(t)
Tsh(h)
Short Circuit Current
Shutdown Threshold
Thermal Shutdown
Hysteresis
5.5
165
10
A
˚C
˚C
OVER TEMPERATURE PROTECTION
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