參數(shù)資料
型號: LP3961EMP-2.5
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: 800mA Fast Ultra Low Dropout Linear Regulators
中文描述: 2.5 V FIXED POSITIVE LDO REGULATOR, 0.35 V DROPOUT, PDSO5
封裝: SOT-223, 5 PIN
文件頁數(shù): 7/20頁
文件大?。?/td> 376K
代理商: LP3961EMP-2.5
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)
65C to +150C
260C
2 kV
Internally Limited
0.3V to +7.5V
0.3V to V
IN
+0.3V
0.3V to +7.5V
I
OUT
(Survival)
Maximum Voltage for ERROR Pin
Maximum Voltage for SENSE Pin
Short Circuit Protected
V
IN
+0.3V
V
OUT
+0.3V
Operating Ratings
Input Supply Voltage (Operating)
Shutdown Input Voltage
(Operating)
Maximum Operating Current
(DC)
Operating Junction Temp. Range
2.5V to 7.0V
0.3V to V
IN
+0.3V
0.8A
40C to +125C
Electrical Characteristics
LP3961/LP3964
Limits in standard typeface are for T
J
= 25C, 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
=10μF, V
SD
= V
IN
-0.3V.
Symbol
Parameter
Conditions
Typ
(Note
4)
LP3961/4
(Note 5)
Min
Units
Max
V
O
Output Voltage
Tolerance
(Note 8)
V
OUT
+1V
<
V
IN
<
7.0V
10 mA
<
I
L
<
800 mA
3.135
V
IN
7.0 for
V
OUT
= 2.5V
V
OUT
+1V
<
V
IN
<
7.0V,
0
-1.5
-3.0
+1.5
+3.0
%
V
OL
Output Voltage Line
Regulation (Note 8)
Output Voltage Load
Regulation
(Note 8)
0.02
0.06
0.02
0.08
%
V
O
/
I
OUT
10 mA
<
I
L
<
800 mA
%
V
IN
-
V
OUT
Dropout Voltage
(Note 10)
I
L
= 80 mA
24
30
35
300
350
9
10
14
15
25
75
mV
I
L
= 800 mA
240
I
GND
Ground Pin Current In
Normal Operation
Mode
I
L
= 80 mA
3
mA
I
L
= 800 mA
4
I
GND
Ground Pin Current In
Shutdown Mode
(Note 11)
Peak Output Current
V
SD
0.2V
15
μA
I
O(PK)
(Note 2)
1.5
1.2
1.1
A
SHORT CIRCUIT PROTECTION
I
SC
OVER TEMPERATURE PROTECTION
Tsh(t)
Shutdown Threshold
Tsh(h)
Thermal Shutdown
Hysteresis
SHUTDOWN INPUT
Short Circuit Current
2.8
A
165
10
C
C
V
SDT
Shutdown Threshold
Output = High
Output = Low
I
L
= 800 mA
I
L
= 800 mA
V
SD
= V
IN
V
IN
0
20
25
1
V
IN
–0.3
V
0.2
T
dOFF
T
dON
I
SD
Turn-off delay
Turn-on delay
SD Input Current
μs
μs
nA
L
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