LP3876-ADJ Datasheet, PDF (4/14 Pages) National Semiconductor (TI) – 3A Fast Ultra Low Dropout Linear Regulator

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)
−65˚C to +150˚C
260˚C
2 kV
Internally Limited
−0.3V to +7.5V
−0.3V to 7.5V
−0.3V to +6.0V
I_OUT (Survival)
Short Circuit Protected
Operating Ratings
Input Supply Voltage (Operating),
(Note 10)
Shutdown Input Voltage
(Operating)
Maximum Operating Current (DC)
Operating Junction Temp. Range
2.5V to 7.0V
−0.3V to 7.0V
3A
−40˚C to +125˚C
Electrical Characteristics
LP3876-ADJ
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 = V_O(NOM) + 1.5V, I_L = 10 mA, C_OUT = 10µF, V_SD = 2V.
Symbol
Parameter
Conditions
Typ
LP3876-ADJ (Note 5)
Units
(Note 4)
Min
Max
V_ADJ
Adjust Pin Voltage
V_OUT +1.5V ≤ V_IN≤ 7V
1.216
1.198
1.234
V
10 mA ≤ I_L ≤ 3A
1.180
1.253
I_ADJ
Adjust Pin Input Current
V_OUT +1.5V ≤ V_IN≤ 7V
10 mA ≤ I_L ≤ 3A
10
100
nA
∆V _OL
Output Voltage Line
V_OUT +1.5V ≤ V_IN ≤ 7.0V
0.02
%
Regulation (Note 8)
0.06
∆V_O/ ∆I_OUT Output Voltage Load
10 mA ≤ I_L ≤ 3A
0.08
%
Regulation
0.14
(Note 8)
V_IN - V_OUT
I_L = 300 mA
80
Dropout Voltage
(Note 9)
I_L = 3A
800
105
125
mV
1000
1200
I_L = 300 mA
5
Ground Pin Current In
I_GND
Normal Operation Mode
I_L = 3A
6
9
10
mA
14
15
I_GND
Ground Pin Current In
V_SD ≤ 0.3V
1
Shutdown Mode
-40˚C ≤T_J ≤ 85˚C
I_O(PK)
Peak Output Current
V_O ≥ V_O(NOM) - 4%
4.5
SHORT CIRCUIT PROTECTION
10
µA
50
A
I_SC
Short Circuit Current
6
A
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