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LP38843T-1.2 Datasheet(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # LP38843T-1.2
Description  3A Ultra Low Dropout Linear Regulators Stable with Ceramic Output Capacitors
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LP38843T-1.2 Datasheet(HTML) 4 Page - National Semiconductor (TI)

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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
−65˚C to +150˚C
Lead Temp. (Soldering, 5 seconds)
260˚C
ESD Rating
Human Body Model (Note 3)
Machine Model (Note 9)
2kV
200V
Power Dissipation (Note 2)
Internally Limited
V
IN Supply Voltage (Survival)
−0.3V to +6V
V
BIAS Supply Voltage (Survival)
−0.3V to +7V
Shutdown Input Voltage (Survival)
−0.3V to +7V
I
OUT (Survival)
Internally Limited
Output Voltage (Survival)
−0.3V to +6V
Junction Temperature
−40˚C to +150˚C
Operating Ratings
V
IN Supply Voltage
(V
OUT +VDO) to 5.5V
Shutdown Input Voltage
0 to +5.5V
I
OUT
3A
Operating Junction
Temperature Range
−40˚C to +125˚C
V
BIAS Supply Voltage
4.5V to 5.5V
V
OUT
0.8V to 1.5V
Electrical Characteristics 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 =VO(NOM) + 1V, VBIAS = 4.5V, IL = 10 mA, CIN =
10 µF CER, C
OUT = 22 µF CER, CBIAS = 1 µF CER, VS/D =VBIAS. Min/Max limits are guaranteed through testing, statistical
correlation, or design.
Symbol
Parameter
Conditions
MIN
TYP
(Note 4)
MAX
Units
V
O
Output Voltage Tolerance
10 mA < I
L < 3A
V
O(NOM) + 1V
≤ V
IN
≤ 5.5V
4.5V
≤ V
BIAS
≤ 5.5V
0.788
0.776
0.8
0.812
0.824
V
1.182
1.164
1.2
1.218
1.236
1.478
1.455
1.5
1.523
1.545
∆V
O/
∆V
IN
Output Voltage Line Regulation
(Note 6)
V
O(NOM) + 1V
≤ V
IN
≤ 5.5V
0.01
%/V
∆V
O/
∆I
L
Output Voltage Load Regulation
(Note 7)
10 mA < I
L < 3A
0.1
0.4
0.6
%/A
V
DO
Dropout Voltage (Note 8)
I
L =3A
210
270
500
mV
I
Q(VIN)
Quiescent Current Drawn from
V
IN Supply
10 mA < I
L < 3A
30
35
40
mA
V
S/D
≤ 0.3V
0.06
1
30
µA
I
Q(VBIAS)
Quiescent Current Drawn from
V
BIAS Supply
10 mA < I
L < 3A
2
4
6
mA
V
S/D
≤ 0.3V
0.03
1
30
µA
I
SC
Short-Circuit Current
V
OUT =0V
8
A
Shutdown Input
V
SDT
Output Turn-off Threshold
Output = ON
0.7
1.3
V
Output = OFF
0.3
0.7
Td (OFF)
Turn-OFF Delay
R
LOAD XCOUT << Td (OFF)
20
µs
Td (ON)
Turn-ON Delay
R
LOAD XCOUT << Td (ON)
15
I
S/D
S/D Input Current
V
S/D =1.3V
1
µA
V
S/D
≤ 0.3V
−1
θ
J-A
Junction to Ambient Thermal
Resistance
TO-220, No Heatsink
65
˚C/W
TO-263, 1 sq.in Copper
35
www.national.com
4


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