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參數(shù)資料
| 型號： | LM317LH |
| 廠商： | Motorola, Inc. |
| 英文描述： | LOW-CURRENT THREE-TERMINAL ADJUSTABLE POSITIVE VOLTAGE REGULATORS |
| 中文描述： | 低電流三端可調正電壓調節(jié)器 |
| 文件頁數(shù)： | 2/3頁 |
| 文件大?。?/td> | 213K |
| 代理商： | LM317LH |
ELECTRICAL CHARACTERISTICS
Uniess otherwise noted
,these specifications apply for the following test conditions:
Vi-Vo=5V and Io=0.5A. For conditions
shown as MIN or MAX, use the appropriate
value specified under recommended operating conditions.
PARAMETER
TEST CONDITIONS
MIN TYP MAXUNIT
0.01
0.02
65
T
J
=MIN to MAX
I
O
=10mA to 1.5A
0.04
0.07
Input Regulation*2
V
I
-V
O
=3V to 40V *3
%/V
V
O
=10V, f=120HZ
V
O
=10V, f=120HZ
10-
μF
capacitor between ADJ and ground
I
O
=10mA TO 1.5A,
T
J
=25
℃
*3
,
Ripple Rejection
66
80
dB
V
O
≤
5V
V
O
>5V
V
O
≥
5V
V
O
>5V
5
25
0.5
70
1.5
mV
%
mV
%
%
%
%
0.1
20
0.3
1
0.3
0.003
Output Regulation
I
O
=10mA to 1.5A
Output Voltage Change With Temperature
Output Voltage long-term Drift*4
Output Noise Voltage
Minimum Output Current to Maintain
Regulation
T
J
=MIN to MAX
After 1000h at T
J
= MAX and VI-VO=40V
f=10Hz to 10kHz, T
J
=25
℃
1
V
I
-V
O
=40V
3.5
10
mA
V
I
-V
O
≤
15V
V
I
-V
O
≤
40V, T
J
=25
1.5
0.15
2.2
0.4
50
Peak Output Current
A
Adjustment-terminal Current
100
μ
A
Change in adjustment-terminal Current
V
I
-V
O
=2.5V to 40V,
I
O
=10mA to 1.5A
V
I
-
V
O
=3V to 4
0
V, IO=10mA to 1.5A,
P
≤
15W
0.2
5.0
μ
A
Reference Voltage(Output to ADJ)
1.20
1.25
1.30
V
*1
*2
*3
All characteristics are measured with a 0.1-
μ
F capacitor across the input and a 1-
μ
F capacitor across the output.
Input regulation is expressed here as the percentage change in output voltage per 1-V change at the input
Pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible.
Thermal effects must be taken into account separately.
Since long-term drift cannot be measured on the individual devices prior to shipment. This specification is not intended to be a guarantee or warranty. It
is an engineering estimate of the average drift to be expected from lot to lot.
*4
TYPICAL APPLICATION DATA
1.
2.
3.
Use of an input bypass capacitor is recommended if regulator is far from filter capacitors.
Use of an output capacitor improves transient response but is optional.
V
REF
equals the difference between the output and adjustment terminal voltages.
OUT
ADJ
REG
IN
R
1
240
R
2
C
2
=1 F
See Note 2
C
1
=0.1 F
See Note 1
V
I
V
0
V
O
= V
REF
{ 1+ }
2
1
3-TERMINAL ADJUSTABLE REGULATORS
See Note 3
*3
Output
voltage is calculated from
LM317
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