LM3171 [FAIRCHILD]
3-Terminal 0.1A Positive Adjustable Regulator;
| 型号： | LM3171 |
| 厂家： | 
FAIRCHILD SEMICONDUCTOR |
| 描述： | 3-Terminal 0.1A Positive Adjustable Regulator |
| 文件： | 总8页 (文件大小：46K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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LM317L
3-Terminal 0.1A Positive Adjustable Regulator
Features
Description
• Output Current in Excess of 100mA
The LM317L is a 3-terminal adjustable positive voltage
regulator capable of supplying in excess of 100mA over an
output voltage range of 1 .2V to 37V. This voltage regulator
is exceptionally easy to use and requires only two external
resistors to set the output voltage.
• Output Adjustable Between 1.2V and 37V
• Internal Thermal Overload Protection
• Internal Short Circuit Current Limiting
• Output Transistor Safe Area Compensation
• Floating Operation For High Voltage Applications
TO-92
1
1. Adj 2. Output 3. Input
8-SOP
1
1. Input 2.3.6.7. Output
4. Adj 5.8. NC
Internal Block Diagram
3
Input
+
-
Protection
Circuitry
Voltage
Reference
Rlimit
2
Output
1
Vadj
Rev. 1.0.2
©2002 Fairchild Semiconductor Corporation
LM317L
Absolute Maximum Ratings
Parameter
Symbol
V - V
Value
40
Unit
V
Input-Output Voltage Differential
Power Dissipation
I
O
P
D
Internally limited
0 ~ +125
W
Operating Junction Temperature Range
Storage Temperature Range
T
j
°C
°C
T
-65 ~+125
STG
Electrical Characteristics
(V - V = 5V, I = 40mA, 0°C ≤ T ≤ +125°C, P
= 625mW, unless otherwise specified)
I
O
O
J
DMAX
Parameter
Symbol
Conditions
T = +25°C
Min. Typ. Max.
Unit
A
-
-
0.01 0.04
0.02 0.07
R
line
3V ≤ V − V ≤ 40V
%/V
I
O
*Line Regulation
*Load Regulation
3V ≤ V − V ≤ 40V
I
O
T = +25°C
A
10mA ≤ I ≤100mA
O
-
V
V
≤ 5V
≥5V
5
25
mV
%/ V
O
O
O
0.1
0.5
R
loal
10mA ≤ I ≤ 100mA
O
V
V
≤ 5V
≥ 5V
-
-
-
20
0.3
70
1.5
mV
O
O
%/ V
O
Adjustment Pin Current
I
-
50
100
µA
ADJ
3V ≤ V - V ≤ 40V
10mA ≤ I ≤ 100mA
O
P
I
O
Adjustment Pin Current Change
∆I
ADJ
0.2
5
µA
< P
D
DMAX
3V < V - V <40V
I
O
Reference Voltage
V
REF
10mA ≤ I ≤100mA
1.20 1.25 1.30
V
O
P
≤ P
DMAX
D
Temperature Stability
ST
-
-
-
0.7
3.5
-
%
T
Minimum Load Current to
Maintain Regulation
I
V - V = 40V
10
mA
mA
L(MIN)
I
O
V - V ≤ 15V, P < P
DMAX
100
200
-
I
O
D
Maximum output Current
I
O(MAX)
V - V ≤ 40V
I
O
25
-
50
-
-
P
< P
, T = +25°C
DMAX
D
A
RMS Noise, % of V
e
N
T =+ 25°C, 10Hz < f <10KHz
0.003
%/ V
dB
OUT
A
O
V
= 10V, f = 120Hz
O
Ripple Rejection
RR
ST
without C
66
-
65
80
-
-
ADJ
= 10uF
C
ADJ
Long-Term Stability
T = +125 °C, 1000 Hours
0.3
%
J
• Load and Line regulation are specified at constant junction temperature. Change in V due to heating effects must be taken
O
into account separately. Pulse testing with low duty cycle is used.
2
LM317L
Typical Application
Output
LM317L
Input
Figure 1. 5V Electronic Shutdown Regulator
D1 protects the device during an input short circuit.
LM317L
Input
Output
Figure 2. Slow Turn-On Regulator
Input
LM317L
Output
Figure 3. Current Regulator
3
LM317L
Mechanical Dimensions
Package
TO-92
+0.25
–0.15
4.58
0.46 ±0.10
+0.10
–0.05
1.27TYP
1.27TYP
0.38
[1.27 ±0.20
]
[1.27 ±0.20]
3.60 ±0.20
(R2.29)
4
LM317L
Mechanical Dimensions (Continued)
Package
8-SOP
0.1~0.25
0.004~0.001
MIN
1.55 ±0.20
0.061 ±0.008
#8
#5
#1
#4
6.00 ±0.30
0.236 ±0.012
1.80
0.071
MAX
3.95 ±0.20
0.156 ±0.008
°
5.72
0.225
0~8
0.50 ±0.20
0.020 ±0.008
5
LM317L
Ordering Information
Product Number
LM317LZ
Package
TO-92
Operating Temperature
0°C to + 125°C
LM317LM
8-SOP
6
LM317L
7
LM317L
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY
PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY
LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER
DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR
CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body,
or (b) support or sustain life, and (c) whose failure to
perform when properly used in accordance with
instructions for use provided in the labeling, can be
reasonably expected to result in a significant injury of the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
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3/5/02 0.0m 001
Stock#DSxxxxxxxx
2002 Fairchild Semiconductor Corporation
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