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LM9072S Datasheet(PDF) 2 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # LM9072S
Description  Dual Tracking Low-Dropout System Regulator
Download  15 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM9072S Datasheet(HTML) 2 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.
Input Voltage (Continuous)
−45V to 45V
Input Voltage (Transient, t
≤ 400 ms)
60V
Forced Output Voltages
Main Output
−0.3V to 7V
Tracking Output
−0.3V to 27V
ON/OFF Input Voltage (Note 6)
−0.3V to 16V
ON/OFF Input Current
± 20 mA
Keep Alive In, Reset Out,
C
DELAY Voltage
−0.3V to 7V
Junction Temperature
150˚C
Storage Temperature Range
−65˚C to +150˚C
ESD Susceptibility (Note 2)
2000V
Lead Temperature
(Soldering, 10 seconds)
265˚C
Operating Ratings (Note 1)
Input Voltage Range
6V to 27V
Ambient Temperature Range
−40˚C to +125˚C
Thermal Resistance,
θ
J-C
4˚C/W
Thermal Resistance,
θ
J-A
43˚C/W
Electrical Characteristics
6.0V
≤ V
IN ≤ 19V, TCASE = 25˚C, unless otherwise specified. COUT ≥ 6 µF with 0.3Ω≤ ESR ≤ 3Ω on each regulator output.
Symbol
Parameter
Conditions
Min
Max
Units
MAIN REGULATOR
V
MAIN
Output Voltage
5 mA
≤ I
LOAD ≤ 350 mA
−40˚C
≤ T
CASE ≤ 125˚C
4.9
5.1
V
19V
≤ V
IN ≤ VSD,
5mA
≤ I
LOAD ≤ 350 mA
−40˚C
≤ T
CASE ≤ 125˚C
4.8
5.2
V
R
MLOAD
Load Regulation
V
IN = 16V, 5 mA ≤ ILOAD ≤ 350 mA
25
mV
R
MLINE
Line Regulation
I
LOAD = 350 mA, 8V ≤ VIN ≤ 16V
25
mV
V
MDO
Dropout Voltage, V
IN–VMAIN
V
IN > 5.5V, 5 mA ≤ ILOAD ≤ 350 mA
(Note 5)
0.8
V
V
SD
Overvoltage Shutdown Threshold
30
36
V
I
MSC
Output Short Circuit Current
R
L = 1Ω
450
1000
mA
R
MRR
Ripple Rejection
V
IN = 9V, 50 ≤ Freq ≤ 20 kHz,
V
RIPPLE = 4VP-P
40
dB
TRACKING REGULATOR
V
TRACK
Output Voltage
1 mA
≤ I
LOAD ≤ 80 mA
−40˚C
≤ T
CASE ≤ 125˚C
4.85
5.15
V
19V
≤ V
IN ≤ VSD
1mA
≤ I
LOAD ≤ 80 mA
−40˚C
≤ T
CASE ≤ 125˚C
4.725
5.275
V
V
ERROR
Output Tracking Error
(V
MAIN–VTRACK)
1mA
≤ I
LOAD ≤ 80 mA
−50
50
mV
V
TDO
Dropout Voltage,
V
IN–VTRACK
V
IN > 5.5V, 1 mA ≤ ILOAD ≤ 80 mA
(Note 5)
0.8
V
V
SD
Overvoltage Shutdown Threshold
30
36
V
I
TSC
Output Short Circuit Current
R
L = 1Ω
200
mA
V
TSC
Output Short Circuit Voltage
No Effect On Other Functions
−2
27
V
R
TRR
Ripple Rejection
V
IN = 9V, 50 ≤ Freq ≤ 20 kHz,
V
RIPPLE = 4VP-P
40
dB
INPUT CURRENT
I
qOFF
Quiescent Input Current with
Both Regulators OFF
8V
≤ V
IN ≤ 16V
40
µA
16V
≤ V
IN ≤ 42V
10
mA
I
q
No Load Quiescent Current
8V
≤ V
IN ≤ 19V, IL = 0mA
15
mA
In
ON
Additional Input Current with
Both Regulators ON
V
IN > 8V, ILtotal = ILmain +ILtrack
I
Ltotal = 350 mA+80mA = 430 mA
1.2
x I
Ltotal
Iin
do
Additional Input Current in Dropout
0V < V
IN < 8V, (Note 4)
I
Ltotal = ILmain +ILtrack
I
Ltotal = 350 mA+80mA = 430 mA
1.5
x I
Ltotal
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