Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
IOUT (Survival)
Short Circuit Protected
VIN+0.3V
Maximum Voltage for ERROR
Pin
Maximum Voltage for SENSE Pin
VOUT+0.3V
Storage Temperature Range
Lead Temperature
−65˚C to +150˚C
Operating Ratings
Input Supply Voltage (Operating),
(Note 12)
(Soldering, 5 sec.)
260˚C
2 kV
ESD Rating (Note 3)
Power Dissipation (Note 2)
Input Supply Voltage (Survival)
Shutdown Input Voltage
(Survival)
2.5V to 7.0V
Internally Limited
−0.3V to +7.5V
Shutdown Input Voltage
(Operating)
−0.3V to VIN+0.3V
0.8A
Maximum Operating Current (DC)
Operating Junction Temp. Range
−0.3V to VIN+0.3V
−0.3V to +7.5V
−40˚C to +125˚C
Output Voltage (Survival), (Note
6), (Note 7)
Electrical Characteristics
LP3961/LP3964
Limits in standard typeface are for TJ = 25˚C, and limits in boldface type apply over the full operating temperature range.
Unless otherwise specified: VIN = VO(NOM) + 1V, IL = 10 mA, COUT = 33µF, VSD = VIN-0.3V.
Symbol
Parameter
Output Voltage
Conditions
Typ
(Note 4)
LP3961/4 (Note 5)
Units
Min
Max
VO
10 mA ≤ IL ≤ 800mA
VOUT +1 ≤ VIN≤ 7.0V
-1.5
+1.5
Tolerance
0
%
-3.0
+3.0
(Note 8)
VADJ
∆V OL
Adjust Pin Voltage (ADJ
version)
10 mA ≤ IL ≤ 800mA
VOUT +1.5V ≤ VIN≤ 7.0V
1.198
1.234
1.216
V
1.180
1.253
<
<
Output Voltage Line
Regulation (Note 8)
Output Voltage Load
Regulation
VOUT+1V VIN 7.0V
0.02
0.06
0.02
0.08
%
<
<
∆VO/ ∆IOUT
10 mA IL 800 mA
%
(Note 8)
VIN - VOUT
IL = 80 mA
IL = 800 mA
IL = 80 mA
IL = 800 mA
VSD ≤ 0.2V
24
240
3
30
35
300
350
9
Dropout Voltage
(Note 10)
mV
10
14
15
25
75
Ground Pin Current In
Normal Operation Mode
IGND
mA
µA
4
IGND
Ground Pin Current In
Shutdown Mode
(Note 11)
15
IO(PK)
Peak Output Current
(Note 2)
1.5
2.8
1.2
A
A
1.1
SHORT CIRCUIT PROTECTION
ISC Short Circuit Current
OVER TEMPERATURE PROTECTION
Tsh(t)
Shutdown Threshold
Thermal Shutdown
Hysteresis
165
10
˚C
˚C
Tsh(h)
SHUTDOWN INPUT
Output = High
Output = Low
VIN
0
VIN–0.3
VSDT Shutdown Threshold
V
0.2
7
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