LP3962 Datasheet, PDF (7/22 Pages) National Semiconductor (TI) – 1.5A Fast Ultra Low Dropout Linear Regulators

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 V_IN+0.3V
−0.3V to +7.5V
I_OUT (Survival)
Short Circuit Protected
Maximum Voltage for ERROR
Pin
V_IN+0.3V
Maximum Voltage for SENSE Pin
V_OUT+0.3V
Operating Ratings
Input Supply Voltage (Operating),
(Note 12)
Shutdown Input Voltage
(Operating)
Maximum Operating Current (DC)
Operating Junction Temp. Range
2.5V to 7.0V
−0.3V to V_IN+0.3V
1.5A
−40˚C to +125˚C
Electrical Characteristics
LP3962/LP3965
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, I_L = 10 mA, C_OUT = 33µF, V_SD = V_IN-0.3V.
Symbol
Parameter
Conditions
Typ
LP3962/5 (Note 5)
Units
(Note 4)
Min
Max
V_O
Output Voltage
Tolerance
(Note 8)
10 mA ≤ I_L ≤ 1.5A
V_OUT +1 ≤ V_IN≤ 7.0V
-1.5
+1.5
0
%
-3.0
+3.0
V_ADJ
Adjust Pin Voltage (ADJ
10 mA ≤ I_L ≤ 1.5A
1.198
1.234
1.216
V
version)
V_OUT +1.5V ≤ V_IN≤ 7.0V
1.180
1.253
∆V _OL
Output Voltage Line
V_OUT+1V<V_IN<7.0V,
0.02
%
Regulation (Note 8)
0.06
∆V_O/ ∆I_OUT Output Voltage Load
10 mA < I_L < 1.5 A
0.04
%
Regulation
0.09
(Note 8)
V_IN - V_OUT
I_L = 150 mA
38
Dropout Voltage
(Note 10)
I_L = 1.5 A
380
45
55
mV
450
550
I_L = 150 mA
4
Ground Pin Current In
I_GND
Normal Operation Mode
I_L = 1.5 A
5
9
10
mA
14
15
I_GND
Ground Pin Current In
V_SD ≤ 0.2V
15
Shutdown Mode
25
µA
75
(Note 11)
I_O(PK)
Peak Output Current
(Note 2)
2.5
2.0
A
1.7
SHORT CIRCUIT PROTECTION
I_SC
Short Circuit Current
OVER TEMPERATURE PROTECTION
4.5
A
Tsh(t)
Shutdown Threshold
165
˚C
Tsh(h)
Thermal Shutdown
10
˚C
Hysteresis
SHUTDOWN INPUT
V_SDT
Shutdown Threshold
Output = High
Output = Low
V_IN
V_IN–0.3
V
0
0.2
7
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