SMLM317L [SECOS]
100mA Adjustable Voltage Regulator; 百毫安可调稳压器
| 型号： | SMLM317L |
| 厂家： | 
SECOS HALBLEITERTECHNOLOGIE GMBH |
| 描述： | 100mA Adjustable Voltage Regulator |
| 文件： | 总3页 (文件大小：596K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SMLM317L
100mA Adjustable
Elektronische Bauelemente
Voltage Regulator
RoHS Compliant Product
SOT-89
Description
The SMLM317L is a monolithic integral circuit, designed for use as
positive adjustable voltage regulator. It is designed to supply unit 100mA
of load current with an output voltage adjustable over a 1.25V to 37V
range.
Features
* Thermal Overload Protection
* Floating Operation For High Voltage Applications
* Short Circuit Protection
* Output Voltage Adjustable From 1.25V To 37V
* Output Transistor Save Area Compensation
* Output Current In Excess Of 100mA
Millimeter
Min. Max.
3.00 REF.
1.50 REF.
Millimeter
REF.
REF.
Min.
4.4
Max.
4.6
A
B
C
D
E
F
G
H
I
J
K
L
4.05
1.50
1.30
2.40
0.89
4.25
1.70
1.50
2.60
1.20
0.40
1.40
0.35
0.52
1.60
0.41
5° TYP.
0.70 REF.
M
Test Circuit
SMLM317L
Block Diagram
http://www.SeCoSGmbH.com/
Any changing of specification will not be informed individual
01-Jun-2002 Rev. A
Page 1 of 3
SMLM317L
100mA Adjustable
Elektronische Bauelemente
Voltage Regulator
Absolute Maximum Ratings at Ta=25oC
Ratings
40
Parameter
Input-Output Voltage Difference
Symbol
Unit
V
o
C
VIN-VOUT
TJ
Junction Temperature
+125
Power Dissipation
625
mW
PD
o
C
o
C
Storage Temperature Range
Operating Juction Temperature
TSTR
0~+70
-40~+150
TOPR
Note: 1. Absolute max. ratings are those values beyond witch the device could be permanently demaged. Absolute max. ratings are stress
ratings only and functional device operation is not implied.
2. The device is guaranteed to meet performance specification within 0oC~70oC operating temperature range and assured by design
from -20oC~85oC.
o
o
≤
≤
Electrical Characteristics (VIN-VOUT=5V, 0 C
T
J
125 C, I
O
=40mA, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
0.01
0.02
5
Max
0.04
0.07
25
Unit
%/V
%/V
T
J
=25к
0к≤ T ≤ 125к
=25к
0к≤ T ≤ 125к
=25к
0к≤ T ≤ 125к
-
-
-
-
-
-
-
V
IN -VOUT=3~40V
Line Regulation
Load Regulation
REGLINE
IO<20mA
J
T
J
IO
=5~100mA
mV
VOUT ≤ 5V
J
20
70
REGLOAD
T
J
0.1
0.3
50
0.5
IO
=5~100mA
%/VOUT
VOUT ≥ 5V
J
1.5
Adjustable Pin Current
IADJ
100
ꢀA
ꢀA
V
IN -VOUT=3~40V
Adjustable Pin Current Change
ꢁIADJ
-
0.2
5
IO
=5~100mA, P
D
< 625mW
V
IN -VOUT=3~40V
Reference Voltage
V
REF
1.2
1.25
1.3
V
IO
=5~100mA, P
D < 625mW
Output Voltage Temperature Stability
Minimum Load Current
ꢁVOUT/VOUT
LOAD(Min)
-
-
0.7
3.5
-
%
I
V
V
V
IN -VOUT=40V
5
mA
IN -VOUT=3~13V
IN -VOUT=40V
100
25
-
200
50
Maximum Output Current
IOUT(Max)
-
mA
%/VOUT
dB
Output Noise Voltage (% of VOUT
)
eN
f=10Hz ~ 10KHz, T
J
=25к
0.003
65
-
-
-
C
C
ADJ=0
ADJ=10uF
-
Ripple Rejection
RR
TJ=25к, f=120Hz
66
80
Characteristics Curve
http://www.SeCoSGmbH.com/
Any changing of specification will not be informed individual
01-Jun-2002 Rev. A
Page 2 of 3
SMLM317L
100mA Adjustable
Elektronische Bauelemente
Voltage Regulator
Application Information and Circuits
The SMLM317L provides an internal reference voltage of 1.25V between the output and adjustments terminals.This is used to
set a constant current flow across an external resistor driver, giving an output voltage VOUT of: VOUT=VREF*(1+R2/R1)+IADJ*R2.
The device is designed to min. the term IADJ (100uA max) and to maintain it very constant with line and load charges. Usually,
the error term IADJ*R2 can be neglected. To obtain the previous requirement, all the regulator quiescent current is returned to
the output terminal, imposing a min. load current condition. If the load is insufficient, the output voltage will rise. The SMLM317L
is a floating regulator, input-output differential voltage,supplies of very high voltage with respect to ground can be regulated as
long as the max. input-output differential is not exceeded. Furthemore, programmable regulators are easily obtainable and, by
connecting a fixed resistor between the adjustment and output, the device can be used as a precision current regulator.
2,3,
6,7
1
2,3,6,7
1
SMLM317L
SMLM317L
4
4
Fig 1. BasicAdjustableRegulator
Fig 2. VoltageRegulator with
Protection Diodes
2,3,6,7
2,3,6,7
1
1
SMLM317L
SMLM317L
4
4
Fig 3. Slow Turn-On 15V Regulator
Fig 4. 5V Electronic Shut-Down
Regulator
h tp://www.SeCoSGmbH.com/
Any changing of specification will not be informed individual
01-Jun-2002 Rev. A
Page 3 of 3
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