LP3878 Datasheet, PDF (4/11 Pages) National Semiconductor (TI) – Micropower 800mA Low Noise Ceramic Stable Voltage Regulator for Low Voltage Applications Designed for Use with Very Low ESR Output Capacitors

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
Operating Junction Temperature
Range
Lead Temperature (Soldering, 5
seconds)
ESD Rating (Note 2)
Power Dissipation (Note 3)
−65˚C to +150˚C
-40˚C to +125˚C
260˚C
2 kV
Internally Limited
Input Supply Voltage (Survival)
Input Supply Voltage
(Operating)
Sense Pin
Output Voltage (Survival)
(Note 4)
I_OUT (Survival)
Input-Output Voltage (Survival)
(Note 5)
−0.3V to +16V
2.2V to 6V
−0.3V to 6V
−0.3V to 6V
Short Circuit
Protected
−0.3V to +16V
Electrical Characteristics
Limits in standard typeface are for T_J = 25˚C, and limits in boldface type apply over the junction temperature range of 0˚C to
125˚C. Unless otherwise specified: V_IN = 3.3V, I_L = 1 mA, C_OUT = 10 µF, C_IN = 4.7 µF, V_S/D = 2V.
Symbol
Parameter
Conditions
Min
(Note 6)
Typical
(Note 7)
Max
(Note 6)
Units
V_O
Output Voltage
Tolerance
1 mA < I_L < 800 mA
3.0V ≤ V_IN ≤ 6V
−1.0
−2.0
−3.0
1.0
2.0
%V_NOM
3.0
Output Voltage Line
Regulation
3.0V ≤ V_IN ≤ 6V
0.014
0.005
%/V
0.032
V_IN (min)
I_GND
I_O(PK)
I_O(MAX)
e_n
Minimum Input
Voltage Required To
Maintain Output
Regulation
Ground Pin Current
I_L = 800 mA
V_OUT ≥ V_OUT(NOM) - 1%
I_L = 100 µA
I_L = 200 mA
I_L = 800 mA
Peak Output Current
Short Circuit Current
Output Noise Voltage
(RMS)
Ripple Rejection
V_OUT ≥ V_O(NOM) − 5%
R_L = 0 (Steady State)
(Note 8)
BW = 100 Hz to 100 kHz
C_BYPASS = 10 nF
C_BYPASS = 0
f = 1 kHz
2.2
180
1
5
1200
1400
18
85
70
2.75
V
200
µA
225
2
2.5
mA
8
10
mA
µV(RMS)
dB
SHUTDOWN INPUT
V_S/D
S/D Input Voltage
I_S/D
S/D Input Current
V_H = O/P ON
V_L = O/P OFF
I_IN ≤ 2 µA
V_S/D = 0
V_S/D = 5V
1.4
1.6
V
0.1
0.50
0.001
−1
µA
5
15
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