參數(shù)資料
型號(hào)： LMS5214IMGX-2.5
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： 80mA, Low Dropout Voltage Regulator with Auto Discharge Function in SC70
中文描述： 2.5 V FIXED POSITIVE LDO REGULATOR, 0.5 V DROPOUT, PDSO5
封裝： SC-70, 5 PIN
文件頁(yè)數(shù)： 4/10頁(yè)
文件大小： 286K
代理商： LMS5214IMGX-2.5
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
(Note 1)
ESD Tolerance (Note 2)
Human Body Model
Machine Model
Junction Temperature
V
IN
, V
OUT
, V
EN
Soldering Information
Infrared or Convection (20 sec)
Wave Soldering (10 sec)
2000V
200V
150C
0.3 TO 6.5V
235C
260C (lead temp)
Operating Ratings
Supply Voltages
V
IN
V
EN
Junction Temp. Range (Note 3)
Storage Temperature Range
Package Thermal Resistance
SC70-5
2.5V to 6V
0V to V
IN
40C to +125C
65C to 150C
478C/W
Electrical Characteristics
Unless otherwise specified, all limits guaranteed for T
J
= 25C, V
IN
= V
OUT
+ 1V, I
L
= 1mA, C
L
= 0.47μF,
V
EN
≥
2.0V.
Boldface
limits apply at the temperature extremes.
Symbol
Parameter
Conditions
Min
(Note 5)
-3
-4
Typ
(Note 4)
Max
(Note 5)
3
4
200
Units
V
O
Output Voltage Accuracy
%
V
O
/
T
Output Voltage Temp.
Coefficient
Line Regulation
(Note 10)
50
ppm/C
V
O
/V
O
V
IN
= V
OUT
+1V to 6V
0.008
0.3
0.5
0.3
0.5
%
V
O
/V
O
Load Regulation
I
L
= 0.1mA to 80mA (Note 6)
0.08
%
V
IN
-V
O
Dropout Voltage
(Note 7)
I
L
= 100μA
I
L
= 20mA
I
L
= 50mA
I
L
= 80mA
V
EN
≤
0.4V (Shutdown)
I
L
= 100μA, V
EN
≥
2.0V (active)
I
L
= 20mA, V
EN
≥
2.0V (active)
I
L
= 80mA, V
EN
≥
2.0V (active)
V
OUT
= 0V
(Note 9)
2
70
180
300
10
70
80
110
200
0.05
mV
150
500
100
I
Q
I
GND
Quiescent Current
Ground Pin Current
nA
μA
135
200
400
I
LIMIT
V
O
/
P
D
Enable Input
V
IL
V
IH
I
IL
I
IH
Current Limit
Thermal Regulation
mA
%W
Enable Input Voltage Level
Logic Low (off)
Logic High (on)
V
IL
≤
0.6V
V
IH
≥
2.0V
0.6
V
V
μA
μA
2.0
Enable Input Current
0.01
0.01
1
5
Note 1:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
intended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test conditions, see the Electrical Characteristics.
Note 2:
Human body model, 1.5k
in series with 100pF.
Note 3:
The maximum power dissipation is a function of T
,
θ
, and T
. The maximum allowable power dissipation at any ambient temperature
is P
D
= (T
J(MAX)
–T
A
)/
θ
JA
. All numbers apply for packages soldered directly into a PC board.
Note 4:
Typical Values represent the most likely parametric norm.
Note 5:
All limits are guaranteed by testing or statistical analysis.
Note 6:
Regulation is measured at constant junction temperature using low duty cycle pulse testing. Changes in output voltage due to heating effects are covered
by the thermal regulation specification.
Note 7:
Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal value measured at 1V differential.
Note 8:
Ground pin current is the regulator quiescent current plus pass transistor base current. The total current drawn from the supply is the sum of the load current
plus the ground pin current.
Note 9:
Thermal regulation is defined as the change in output voltage at a time “t” after a change in power dissipation is applied, excluding load or line regulation
effects. Specifications are for an 80mA load pulse at V
IN
= 6V for t = 16ms.
Note 10:
Output voltage temperature coefficient is defined as the worst-case voltage change divided by the total temperature range.
L
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