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參數(shù)資料
| 型號： | LP3983ITLX-2.5 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Micropower, Low Quiescent Current, CMOS Voltage Regulator in micro SMD Package |
| 中文描述： | 2.5 V FIXED POSITIVE LDO REGULATOR, PBGA5 |
| 封裝： | MICRO, SMD-5 |
| 文件頁數(shù)： | 4/10頁 |
| 文件大?。?/td> | 166K |
| 代理商： | LP3983ITLX-2.5 |
Absolute Maximum Ratings
2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
(Notes 1,
V
IN
V
EN
0.3 to 6.5V
0.3 to (V
IN
+ 0.3V) to
6.5V(max)
V
OUT
0.3V to(V
IN
+ 0.3V) to
6.5V(max)
150C
Junction Temperature
Storage Temperature
Pad Temperature
(Soldering, 10 sec.)
ESD (Note 4)
Human Body Model
65C to +150C
265C
2KV
Machine Model
100V
Operating Ratings
(Notes 1, 2)
V
IN
(Note 9)
V
EN
,
Recommended Load Current
Junction Temperature
Ambient Temperature
(Note 3)
V
IN(MIN)
to 6V
0 to 6.0V
0 to 5mA
40C to +125C
40C to +119C
Thermal Properties
(Note 3)
Junction to Ambient Thermal
Resistance (
θ
JA
)
255C/W
Electrical Characteristics
Unless otherwise specified: V
EN
= 1.8V,V
IN
= V
OUT(nom)
+ 1.0V, C
IN
= 1.0 μF, I
OUT
= 1.0mA, C
OUT
= 1.0 μF. Typical values
and limits appearing in standard typeface are for T
= 25C. Limits appearing in
apply over the entire junction
temperature range for operation, 40C to +125C. (Note 10) (Note 11)
Symbol
Parameter
Conditions
Typ
Limit
Units
Min
-55
-96
Max
+55
+96
V
OUT
Output Voltage
Tolerance
I
OUT
= 0mA to 5mA
mV from
V
OUT(nom)
% of
V
OUT(nom)
6
+6
PSRR
Power Supply Rejection
Ratio
Quiescent Current
V
IN
= V
OUT(nom)
+ 1V,
f
≤
10 kHz, I
OUT
= 1mA
I
OUT
= 50μA, V
IN
= 4.2V
V
EN
= 0.4V, V
IN
= 4.2V
Output Grounded
10
dB
I
Q
14
1
21
3
μA
I
SC
Short Circuit Current
Limit (Note 7)
Maximum Output
Current
28
35
mA
I
OUT
(Note 6)
5
mA
Logic Control Characteristics
I
EN
Maximum Input Current
at V
EN
input
Logic Low Input
Threshold
Logic High Input
Threshold
V
EN
= 0.4 and V
IN
= 6.0V
0.02
μA
V
IL
V
IN
= V
IN(MIN)
to 6.0V
0.5
V
V
IH
V
IN
= V
IN(MIN)
to 6.0V
1.2
V
Timing Characteristics
T
ON
Turn on Time(Note 7)
(Note 8)
170
250
μs
Note 1:
Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which operation of the device
is guaranteed. Operating Ratings do not imply guaranteed performance limits. For guaranteed performance limits and associated test conditions, see the Electrical
Characteristics tables.
Note 2:
All voltages are with respect to the potential at the GND pin.
Note 3:
The maximum ambient temperature (T
A(max)
) is dependant on the maximum operating junction temperature (T
J(max-op)
= 125C), the maximum power
dissipation of the device in te application (P
D(max)
θ
JA
), as given by the
following equation: T
A(max)
= T
J(max-op)
- (
θ
JA
D(max)
).
Note 4:
The human body model is 100pF discharged through a 1.5k
resistor into each pin. The machine model is a 200pF capacitor discharged directly into each
pin.
Note 5:
Junction to ambient thermal resistance is dependant on the application and board layout. In applications where high maximum power dissipation is possible,
special care must be paid to thermal dissipation issues in board design.
Note 6:
The device maintains the regulated output voltage without load.
L
www.national.com
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