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| LP3963 Datasheet, PDF (6/14 Pages) National Semiconductor (TI) – 3A Fast Ultra Low Dropout Linear Regulators | |||
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Absolute Maximum Ratings (Note 1)
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
6), (Note 7)
â65ËC to +150ËC
260ËC
2 kV
Internally Limited
â0.3V to +7.5V
â0.3V to VIN+0.3V
â0.3V to +7.5V
IOUT (Survival)
Maximum Voltage for ERROR Pin
Maximum Voltage for SENSE Pin
Short Circuit Protected
VIN+0.3V
VOUT+0.3V
Operating Ratings
Input Supply Voltage (Operating)
Shutdown Input Voltage
(Operating)
Maximum Operating Current
(DC)
Operating Junction Temp. Range
2.5V to 7.0V
â0.3V to VIN+0.3V
3A
â40ËC to +125ËC
Electrical Characteristics
LP3963/LP3966
Limits in standard typeface are for TJ = 25ËC, and limits in boldface type apply over the full operating temperature
range. Unless otherwise specified: VIN = VO(NOM) + 1.5V, IL = 10 mA, COUT =10µF, VSD = VIN-0.3V.
Symbol
VO
âV OL
âVO/
âIOUT
Parameter
Output Voltage
Tolerance
(Note 8)
Output Voltage Line
Regulation (Note 8)
Output Voltage Load
Regulation
(Note 8)
Conditions
VOUT +1.5V < VIN<
7.0V
10 mA < IL < 3A
VOUT +1.5V < VIN <
7.0V,
10 mA < IL < 3A
Typ(Note
4)
0
0.02
0.06
0.06
0.01
LP3963/6 (Note 5)
Min
Max
-1.5
+1.5
-3.0
+3.0
Units
%
%
%
VIN -
IL = 300 mA
80
VOUT
Dropout Voltage
(Note 10)
IL = 3A
800
100
120
mV
1000
1200
Ground Pin Current In
IL = 300 mA
5
IGND
Normal Operation
Mode
IL = 3A
6
9
10
mA
14
15
IGND
Ground Pin Current In
VSD ⤠0.2V
15
Shutdown Mode
(Note 11)
25
µA
75
IO(PK)
Peak Output Current
(Note 2)
4.5
4
A
3.5
SHORT CIRCUIT PROTECTION
ISC
Short Circuit Current
OVER TEMPERATURE PROTECTION
5.5
A
Tsh(t)
Shutdown Threshold
165
ËC
Tsh(h)
Thermal Shutdown
Hysteresis
10
ËC
SHUTDOWN INPUT
VSDT
Shutdown Threshold
Output = High
Output = Low
VIN
VINâ0.3
V
0
0.2
TdOFF
TdON
ISD
VT
VTH
Turn-off delay
Turn-on delay
SD Input Current
Threshold
Threshold Hysteresis
IL = 3A
IL = 3A
VSD = VIN
(Note 9)
(Note 9)
20
µs
25
µs
1
nA
10
5
16
%
5
2
8
%
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