LP38842 Datasheet, PDF (4/11 Pages) National Semiconductor (TI) – 1.5A Ultra Low Dropout Linear Regulators Stable with Ceramic 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
Lead Temp. (Soldering, 5 seconds)
ESD Rating
Human Body Model (Note 3)
Machine Model (Note 9)
Power Dissipation (Note 2)
V_IN Supply Voltage (Survival)
V_BIAS Supply Voltage (Survival)
Shutdown Input Voltage (Survival)
−65˚C to +150˚C
260˚C
2 kV
200V
Internally Limited
−0.3V to +6V
−0.3V to +7V
−0.3V to +7V
I_OUT (Survival)
Output Voltage (Survival)
Junction Temperature
Operating Ratings
V_IN Supply Voltage
Shutdown Input Voltage
I_OUT
Operating Junction
Temperature Range
V_BIAS Supply Voltage
V_OUT
Internally Limited
−0.3V to +6V
−40˚C to +150˚C
(V_OUT + V_DO) to 5.5V
0 to +5.5V
1.5A
−40˚C to +125˚C
4.5V to 5.5V
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 = V_O(NOM) + 1V, V_BIAS = 4.5V, I_L = 10 mA, C_IN =
10 µF CER, C_OUT = 22 µF CER, C_BIAS = 1 µF CER, V_S/D = V_BIAS. Min/Max limits are guaranteed through testing, statistical
correlation, or design.
Symbol
V_O
Parameter
Output Voltage Tolerance
Conditions
10 mA < I_L < 1.5A
V_O(NOM) + 1V ≤ V_IN ≤ 5.5V
4.5V ≤ V_BIAS ≤ 5.5V
∆V_O/∆V_IN
∆V_O/∆I_L
V_DO
I_Q(V_IN)
I_Q(V_BIAS)
Output Voltage Line Regulation
(Note 6)
Output Voltage Load Regulation
(Note 7)
Dropout Voltage (Note 8)
V_O(NOM) + 1V ≤ V_IN ≤ 5.5V
10 mA < I_L < 1.5A
I_L = 1.5A
Quiescent Current Drawn from
V_IN Supply
10 mA < I_L < 1.5A
V _S/D ≤ 0.3V
Quiescent Current Drawn from
V_BIAS Supply
10 mA < I_L < 1.5A
V _S/D ≤ 0.3V
I_SC
Short-Circuit Current
Shutdown Input
V_SDT
Output Turn-off Threshold
Td (OFF)
Td (ON)
I_S/D
Turn-OFF Delay
Turn-ON Delay
S/D Input Current
θ_J-A
Junction to Ambient Thermal
Resistance
V_OUT = 0V
Output = ON
Output = OFF
R_LOAD X C_OUT < < Td (OFF)
R_LOAD X C_OUT < < Td (ON)
V _S/D =1.3V
V _S/D ≤ 0.3V
TO-220, No Heatsink
TO-263, 1 sq.in Copper
MIN
0.788
0.776
1.182
1.164
1.478
1.455
TYP
(Note 4)
0.8
1.2
1.5
0.01
0.1
115
30
0.06
2
0.03
4
MAX
0.812
0.824
1.218
1.236
1.523
1.545
0.4
1.1
175
315
35
40
1
30
4
6
1
30
0.7
1.3
0.3
0.7
20
15
1
−1
65
35
Units
V
%/V
%/A
mV
mA
µA
mA
µA
A
V
µs
µA
˚C/W
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