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LM317MDT

P1-P3P4-P6P7-P9P10-P11
1/11January 2004
■ OUTPUT VOLTAGE RANGE: 1.2 TO 37V
■ OUTPUT CURRENT IN EXCESS OF 500 mA
■ LINE REGULATION TYP. 0.01%
■ LOAD REGULATION TYP. 0.1%
■ THERMAL OVERLOAD PROTECTION
■ SHORT CIRCUIT PROTECTION
■ OUTPUT TRANSITION SAFE AREA
COMPENSATION
■ FLOATING OPERATION FOR HIGH
VOLTAGE APPLICATIONS
DESCRIPTION
The LM217M/LM317M are monolithic integrated
circuits in TO-220 and DPAK packages intended
for use as positive adjustable voltage regulators.
They are designed to supply until 500 mA of load
current with an output voltage adjustable over a
1.2 to 37V range.
The nominal output voltage is selected by means
of only a resistive divider, making the device
exceptionally easy to use and eliminating the
stocking of many fixed regulators.
LM217M
LM317M
MEDIUM CURRENT
1.2 TO 37V ADJUSTABLE VOLTAGE REGULATOR
SCHEMATIC DIAGRAM
TO-220 DPAK
LM217M/LM317M
2/11
ABSOLUTE MAXIMUM RATINGS
(*) Re-Boot is not guaranteed for T
J
≥ 85°C.
THERMAL DATA
CONNECTION DIAGRAM (top view)
ORDERING CODES
(*) Available in Tape & Reel with the suffix "-TR".
TEST CIRCUIT
Symbol Parameter Value Unit
V
I-
V
O
Input-Output Differential Voltage
40 V
P
d
Power Dissipation
Internally Limited
T
opr
Operating JunctionTemperature
Range (*)
for LM217M -40 to 125
°C
for LM317M 0 to 125
T
stg
Storage Temperature Range
-55 to 150 °C
Symbol Parameter
SOT-82
SOT-194
DPAK
TO-220 Unit
R
thj-case
Thermal Resistance Junction-case Max
83°C/W
R
thj-amb
Thermal Resistance Junction-ambient Max
100 50 °C/W
TYPE TO-220 DPAK (*)
LM217M LM217MT LM217MDT
LM317M LM317MT LM317MDT
TO-220 DPAK
LM217M/LM317M
3/11
ELECTRICAL CHARACTERISTICS OF LM217M (refer to the test circuits, T
J
= - 40 to 125°C,
V
I
-V
O
=5V,I
O
= 100 mA, P
d
≤ 7.5 W, unless otherwise specified).
(*) CADJ is connected between Adjust pin and Ground.
ELECTRICAL CHARACTERISTICS OF LM317M (refer to the test circuits, T
J
= 0 to 125°C,
V
I
-V
O
=5V,I
O
= 100 mA, P
d
≤ 7.5 W, unless otherwise specified).
(*) CADJ is connected between Adjust pin and Ground.
Symbol Parameter Test Conditions Min. Typ. Max. Unit
∆V
O
Line Regulation V
I
-V
O
=3to40V T
J
= 25°C 0.01 0.02 %/V
0.02 0.05
∆V
O
Load Regulation V
O
≤ 5V
I
O
=10to500mA
T
J
= 25°C 5 15 mV
20 50
V
O
≥ 5V
I
O
=10to500mA
T
J
= 25°C 0.1 0.3 %/V
O
0.3 1
I
ADJ
Adjustment Pin Current 50 100 µA
∆I
ADJ
Adjustment Pin Current V
I
-V
O
=3to40V I
O
= 10 to 500 mA 0.2 5 µA
V
REF
Reference Voltage V
I
-V
O
=3to40V I
O
= 10 to 500 mA 1.2 1.25 1.3 V
∆V
O
/V
O
Output Voltage
Temperature Stability
0.7 %
I
O(min)
Minimum Load Current V
I
-V
O
=40V 3.55mA
I
O(max)
Maximum Output Current V
I
-V
O
≤ 15 V 500 1000 mA
V
I
-V
O
=40V, P
d
<P
dMAX
,T
J
= 25°C 200
eN Output Noise Voltage
(percentage of V
O
)
B=10Hzto100KHz T
J
= 25°C 0.003 %
SVR Supply Voltage Rejection (*) T
J
= 25°C
f=120Hz
C
ADJ
= 0 65 dB
C
ADJ
=10µF 66 80
Symbol Parameter Test Conditions Min. Typ. Max. Unit
∆V
O
Line Regulation V
I
-V
O
=3to40V T
J
= 25°C 0.01 0.04 %/V
0.02 0.07
∆V
O
Load Regulation V
O
≤ 5V
I
O
=10to500mA
T
J
= 25°C 5 25 mV
20 70
V
O
≥ 5V
I
O
=10to500mA
T
J
= 25°C 0.1 0.5 %/V
O
0.3 1.5
I
ADJ
Adjustment Pin Current 50 100 µA
∆I
ADJ
Adjustment Pin Current V
I
-V
O
=3to40V I
O
= 10 to 500 mA 0.2 5 µA
V
REF
Reference Voltage V
I
-V
O
=3to40V I
O
= 10 to 500 mA 1.2 1.25 1.3 V
∆V
O
/V
O
Output Voltage
Temperature Stability
0.7 %
I
O(min)
Minimum Load Current V
I
-V
O
=40V 3.510mA
I
O(max)
Maximun Output Current V
I
-V
O
≤ 15 V 500 1000 mA
V
I
-V
O
=40V, P
d
<P
dMAX
,T
J
= 25°C 200
eN Output Noise Voltage
(percentage of V
O
)
B=10Hzto100KHz T
J
= 25°C 0.003 %
SVR Supply Voltage Rejection (*) T
J
= 25°C
f=120Hz
C
ADJ
= 0 65 dB
C
ADJ
=10µF 66 80
P1-P3P4-P6P7-P9P10-P11

LM317MDT

Mfr. #:
Buy LM317MDT
Manufacturer:
STMicroelectronics
Description:
Linear Voltage Regulators 1.2-37V Adj Positive
Lifecycle:
New from this manufacturer.
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