LP38842-ADJ Datasheet, PDF (3/8 Pages) National Semiconductor (TI) – 1.5A Ultra Low Dropout Adjustable 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.
I_OUT (Survival)
Output Voltage (Survival)
Junction Temperature
Internally Limited
−0.3V to +6V
−40˚C to +150˚C
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)
V_ADJ
−65˚C to +150˚C
260˚C
2 kV
200V
Internally Limited
−0.3V to +6V
−0.3V to +7V
−0.3V to +7V
-0.3V to +6V
Operating Ratings
V_IN Supply Voltage
Shutdown Input Voltage
I_OUT
Operating Junction
Temperature Range
V_BIAS Supply Voltage
V_OUT
(V_OUT + V_DO) to 5.5V
0 to +5.5V
1.5A
−40˚C to +125˚C
4.5V to 5.5V
0.56V 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, V_S/D = V_BIAS. Min/Max limits are guaranteed through testing, statistical correlation, or
design.
Symbol
V_ADJ
I_ADJ
∆V_O/∆V_IN
∆V_O/∆I_L
V_DO
I_Q(V_IN)
I_Q(V_BIAS)
Parameter
Conditions
Adjust Pin Voltage
Adjust Pin Bias Current
10 mA < I_L < 1.5A
V_O(NOM) + 1V ≤ V_IN ≤ 5.5V
4.5V ≤ V_BIAS ≤ 5.5V
10 mA < I_L < 1.5A
V_O(NOM) + 1V ≤ V_IN ≤ 5.5V
4.5V ≤ V_BIAS ≤ 5.5V
Output Voltage Line Regulation V_O(NOM) + 1V ≤ V_IN ≤ 5.5V
(Note 6)
Output Voltage Load
10 mA < I_L < 1.5A
Regulation (Note 7)
Dropout Voltage (Note 8)
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
UVLO
V_BIAS Voltage Where
Regulator Output Is Enabled
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
PSOP-8 Package (Note 10)
TYP
MIN
(Note 4)
0.552
0.56
0.543
MAX
0.568
0.577
1
0.01
0.4
0.1
1.1
175
115
315
35
30
40
1
0.06
30
4
2
6
1
0.03
30
3.8
4
0.7
1.3
0.3
0.7
20
15
1
−1
43
Units
V
µA
%/V
%/A
mV
mA
µA
mA
µA
V
A
V
µs
µA
˚C/W
3
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