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| LP3893 Datasheet, PDF (3/12 Pages) National Semiconductor (TI) – 3A Fast-Response 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 Temp. (Soldering, 5 seconds)
ESD Rating
Human Body Model (Note 3)
Machine Model (Note 10)
Power Dissipation (Note 2)
VIN Supply Voltage (Survival)
VBIAS Supply Voltage (Survival)
â65ËC to +150ËC
260ËC
2 kV
200V
Internally Limited
â0.3V to +6V
â0.3V to +7V
Shutdown Input Voltage (Survival)
IOUT (Survival)
Output Voltage (Survival)
Junction Temperature
â0.3V to +7V
Internally Limited
â0.3V to +6V
â40ËC to +150ËC
Operating Ratings
VIN
Shutdown
IOUT
Junction Temperature
VBIAS
(VOUT + VDO) to 5.5V
0 to +6V
3A
â40ËC to +125ËC
4.5V to 6V
Electrical Characteristics 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) + 1V, VBIAS = 4.5V, IL = 10 mA, CIN =
COUT =10 µF, VS/D = VBIAS.
Symbol
VO
Parameter
Output Voltage Tolerance
Conditions
10 mA ⤠IL ⤠3A
VO(NOM) + 1V ⤠VIN ⤠5.5V
4.5V ⤠VBIAS ⤠6V
âVO/âVIN
âVO/âIL
VDO
Output Voltage Line Regulation
(Note 7)
Output Voltage Load Regulation
(Note 8)
Dropout Voltage (Note 9)
VO(NOM) + 1V ⤠VIN ⤠5.5V
10 mA ⤠IL ⤠3A
IL = 3A
IQ(VIN)
Quiescent Current Drawn from
VIN Supply
10 mA ⤠IL ⤠3A
V S/D ⤠0.3V
IQ(VBIAS)
Quiescent Current Drawn from
VBIAS Supply
10 mA ⤠IL ⤠3A
V S/D ⤠0.3V
ISC
Short-Circuit Current
Shutdown Input
VSDT
Output Turn-off Threshold
Td (OFF)
Td (ON)
IS/D
Turn-OFF Delay
Turn-ON Delay
S/D Input Current
VOUT = 0V
Output = ON
Output = OFF
RLOAD X COUT < < Td (OFF)
RLOAD X COUT < < Td (ON)
V S/D =1.3V
V S/D ⤠0.3V
Typical
(Note 4)
1.216
1.5
1.8
MIN
(Note 5)
1.198
1.186
1.478
1.455
1.773
1.746
MAX
(Note 5)
1.234
1.246
1.522
1.545
1.827
1.854
0.01
0.04
0.06
650
270
1000
7
3
8
1
0.03
30
2
1
3
1
0.03
30
6
Units
V
%/V
%/A
mV
mA
µA
mA
µA
A
0.7
1.3
V
0.7
0.3
20
µs
15
1
µA
â1
3
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