LP38511-ADJ Datasheet, PDF (3/14 Pages) National Semiconductor (TI) – 800mA Fast-Transient Response Adjustable Low-Dropout Linear Voltage 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
Soldering Temperature (Note 3)
Thin TO-263
PSOP-8
ESD Rating (Note 2)
Power Dissipation (Note 4)
Input Pin Voltage (Survival)
Enable Pin Voltage (Survival)
Output Pin Voltage (Survival)
ADJ Pin Voltage (Survival)
I_OUT (Survival)
−65°C to +150°C
260°C, 10s
260°C, 10s
±2 kV
Internally Limited
-0.3V to +6.0V
-0.3V to +6.0V
-0.3V to +6.0V
-0.3V to +6.0V
Internally Limited
Operating Ratings (Note 1)
Input Supply Voltage, V_IN
Output Voltage, V_OUT
Enable Input Voltage, V_EN
Output Current (DC)
Junction Temperature (Note 4)
2.25V to 5.5V
V_ADJ to 5V
0.0V to 5.5V
1 mA to 800 mA
−40°C to +125°C
Electrical Characteristics
Unless otherwise specified: V_IN= 2.50V, V_OUT= V_ADJ, I_OUT= 10 mA, C_IN= 10 µF, C_OUT= 10 µF, V_EN= 2.0V. Limits in standard type
are for T_J= 25°C only; limits in boldface type apply over the junction temperature (T_J) range of -40°C to +125°C. Minimum and
Maximum limits are guaranteed through test, design, or statistical correlation. Typical values represent the most likely parametric
norm at T_J= 25°C, and are provided for reference purposes only.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
V_ADJ
I_ADJ
ΔV_ADJ/ΔV_IN
V_ADJ Accuracy
(Note 7)
ADJ Pin Bias Current
V_ADJ Line Regulation
(Notes 5, 7)
2.25V ≤ V_IN ≤ 5.5V
10 mA ≤ I_OUT ≤ 800 mA
2.25V ≤ V_IN ≤ 5.5V
2.25V ≤ V_IN ≤ 5.5V
495.0
500.
505.0
mV
490.0
510.0
-
1
-
nA
-
0.03
0.06
-
%/V
ΔV_ADJ/ΔI_OUT
V_ADJ Load Regulation
(Notes 6, 7)
10 mA ≤ I_OUT ≤ 800 mA
-
0.10
-
%/A
0.20
V_DO
Dropout Voltage
(Note 8)
I_OUT = 800 mA
-
-
260
mV
Ground Pin Current, Output ^{IOUT = 10 mA}
I_GND
Enabled
I_OUT = 800 mA
-
7.5
11
12
mA
-
9
11
13
Ground Pin Current, Output
Disabled
V_EN = 0.50V
-
0.1
3.5
µA
12
I_SC
Short Circuit Current
Enable Input
V_OUT = 0V
-
1.5
-
A
V_EN(ON)
Enable ON Voltage Threshold ^{VEN rising from <0.5V until VOUT =}
ON
0.90
0.80
1.20
1.50
1.60
V
V_EN(OFF)
Enable OFF Voltage
Threshold
V_EN falling from 1.6V until V_OUT =
0.60
1.00
1.40
V
OFF
0.50
1.50
V_EN(HYS) Enable Voltage Hysteresis
V_EN(ON) - V_EN(OFF)
-
200
-
mV
I_EN
Enable Pin Current
V_EN = V_IN
V_EN = 0V
-
1
-
nA
-
-1
-
t_d(OFF)
t_d(ON)
Turn-off delay
Turn-on delay
Time from V_EN < V_EN(OFF) to V_OUT =
OFF, I_LOAD = 800 mA
-
1
-
µs
Time from V_EN >V_EN(ON) to V_OUT =
-
25
-
ON, I_LOAD = 800 mA
3
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