SECOS SLLM317L

SLLM317L
100mA Adjustable
Voltage Regulator
Elektronische Bauelemente
RoHS Compliant Product
Description
SOT-223
The SLLM317L 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
Test Circuit
REF.
A
C
D
E
I
H
Millimeter
Min.
Max.
6.70
7.30
2.90
3.10
0.02
0.10
0
10
0.60
0.80
0.25
0.35
REF.
B
J
1
2
3
4
5
Millimeter
Min.
Max.
13 TYP.
2.30 REF.
6.30
6.70
6.30
6.70
3.30
3.70
3.30
3.70
1.40
1.80
SLLM317L
Block Diagram
http://www.SeCoSGmbH.com/
01-Jun-2002 Rev. A
Any changing of specification will not be informed individual
Page 1 of 3
SLLM317L
100mA Adjustable
Elektronische Bauelemente
Voltage Regulator
o
Absolute Maximum Ratings at Ta=25 C
Parameter
Input-Output Voltage Difference
Symbol
Ratings
VIN-VOUT
40
V
o
Junction Temperature
TJ
+125
Power Dissipation
PD
1
Storage Temperature Range
TSTR
Operating Juction Temperature
Unit
C
W
o
C
0~+70
TOPR
o
C
-40~+150
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.
o
2. The device is guaranteed to meet performance specification within 0 C~70oC operating temperature range and assured by design
o
o
from -20 C~85 C.
Electrical Characteristics (VIN-VOUT=5V, 0oC ≤ TJ ≤ 125oC, IO=40mA, unless otherwise specified)
Parameter
Line Regulation
Load Regulation
Adjustable Pin Current
Adjustable Pin Current Change
Reference Voltage
Symbol
REGLINE
REGLOAD
Min
TJ=25
VIN -VOUT=3~40V
IO<20mA
0
IO=5~100mA
VOUT 5V
0
IO=5~100mA
VOUT 5V
0
TJ
Unit
-
0.01
0.04
%/V
0.02
0.07
%/V
-
5
25
125
-
20
70
-
0.1
0.5
125
-
0.3
1.5
-
50
100
A
A
TJ=25
TJ
Max
-
TJ=25
TJ
Typ
125
IADJ
mV
%/VOUT
IADJ
VIN -VOUT=3~40V
IO=5~100mA, PD < 625mW
-
0.2
5
VREF
VIN -VOUT=3~40V
IO=5~100mA, PD < 625mW
1.2
1.25
1.3
V
-
0.7
-
%
5
mA
-
mA
%/VOUT
Output Voltage Temperature Stability
VOUT/VOUT
Minimum Load Current
ILOAD(Min)
Maximum Output Current
Test Conditions
IOUT(Max)
VIN -VOUT=40V
-
3.5
VIN -VOUT=3~13V
100
200
VIN -VOUT=40V
25
50
-
0.003
-
-
65
-
66
80
-
Output Noise Voltage (% of VOUT)
eN
f=10Hz ~ 10KHz, TJ=25
Ripple Rejection
RR
TJ=25
, f=120Hz
CADJ=0
CADJ=10uF
dB
Characteristics Curve
http://www.SeCoSGmbH.com/
01-Jun-2002 Rev. A
Any changing of specification will not be informed individual
Page 2 of 3
SLLM317L
Elektronische Bauelemente
100mA Adjustable
Voltage Regulator
Application Information and Circuits
The SLLM317L 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 minimize 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 minimum load current condition. If the load is
insufficient, the output voltage will rise. The SLLM317L is a floating regulator, input-output differential voltage,
supplies of very high voltage with respect to ground can be regulated as long as the maximum input-output
differential is not exceeded. Furthermore, 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.
SLLM317L
Fig 1. Basic Adjustable Regulator
SLLM317L
Fig 3. Slow Turn-On 15V Regulator
h tp://www.SeCoSGmbH.com/
01-Jun-2002 Rev. A
SLLM317L
Fig 2. Voltage Regulator with
Protection Diodes
SLLM317L
Fig 4. 5V Electronic Shut-Down
Regulator S
Any changing of specification will not be informed individual
Page 3 of 3