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LM2925 Datasheet(PDF) 2 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # LM2925
Description  Low Dropout Regulator with Delayed Reset
PDF  8 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM2925 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
Operating Range
26V
Overvoltage Protection
60V
Internal Power Dissipation (Note 2)
Internally Limited
Operating Temperature Range
−40˚C to + 125˚C
Maximum Junction Temperature
150˚C
Storage Temperature Range
−65˚C to + 150˚C
Lead Temperature
(Soldering, 10 seconds)
260˚C
ESD rating is to be determined
V
OUT
Electrical Characteristics
V
IN = 14V, C2 = 10 µf, IO = 500 mA, TJ = 25˚C (Note 4) (unless otherwise specified)
Parameter
Conditions
Min
Typ
Max
Units
(Note 3)
Output Voltage
6V
≤ V
IN ≤ 26V, IO ≤ 500 mA,
V
−40˚C
≤ T
J ≤ +125˚C
4.75
5.00
5.25
Line Regulation
9V
≤ V
IN ≤ 16V, IO = 5 mA
4
25
mV
6V
≤ V
IN ≤ 26V, IO = 5mA
10
50
mV
Load Regulation
5 mA
≤ I
O ≤ 500 mA
10
50
mV
Output Impedance
500 mA
DC and 10 mArms,
200
m
Ω
100 Hz-10 kHz
Quiescent Current
I
O ≤ 10 mA
3
mA
I
O = 500 mA
40
100
mA
I
O = 750 mA
90
mA
Output Noise Voltage
10 Hz-100 kHz
100
µVrms
Long Term Stability
20
mV/1000 hr
Ripple Rejection
f
o = 120 Hz
66
dB
Dropout Voltage
I
O= 500 mA
0.45
0.6
V
I
O = 750 mA
0.82
V
Current Limit
0.75
1.2
A
Maximum Operational
26
31
V
Input Voltage
Maximum Line Transient
V
O ≤ 5.5V
60
70
V
Reverse Polarity Input
V
O ≥ − 0.6V, 10Ω Load
−15
−30
V
Voltage, DC
Reverse Polarity Input
1% Duty Cycle,
τ≤ 100 ms,
−50
−80
V
Voltage, Transient
10
Ω Load
Reset Output
Electrical Characteristics
V
IN = 14V, C3 = 0.1 µF, TA = 25˚C (Note 4) (unless otherwise specified)
Parameter
Conditions
Min
Typ
Max
Units
(Note 3)
Reset Voltage
Output Low
I
SINK = 1.6 mA, VIN = 35V
0.3
0.6
V
Output High
I
SOURCE = 0
4.5
5.0
5.5
V
Reset Internal Pull-up Resistor
30
k
Ω
Reset Output Current Limit
V
RESET = 1.2 V
5
mA
V
OUT Threshold
4.5
V
Delay Time
C
3 = .005 µF
12
ms
C
3 = 0.1 µF
150
250
300
ms
C
3 = 4.7 µF tantalum
12
s
www.national.com
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