LM317M
3-TERMINAL ADJUSTABLE REGULATOR
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SLVS297O–APRIL 2000–REVISED JULY 2006
Absolute Maximum Ratings(1)
over operating temperature range (unless otherwise noted)
MIN MAX UNIT
VI – VO
TJ
Input-to-output differential voltage
40
150
260
150
V
Operating virtual junction temperature
Lead temperature (within 5 mils of the plastic body for 10 s)
Storage temperature range
°C
°C
°C
KTP, DCY packages
Tstg
–65
(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
Package Thermal Data(1)
PACKAGE
PowerFLEX (KTP)
SOT-223 (DCY)
TO-252 (KVU)
BOARD
θJC
θJCB
θJA
High K, JESD 51-5
High K, JESD 51-7
High K, JESD 51-5
3°C/W
28°C/W
53°C/W
30.3°C/W
30.6°C/W
(1) Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient
temperature is PD = (TJ(max) – TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability.
Recommended Operating Conditions
MIN
MAX UNIT
VI – VO
IO
Input-to-output voltage differential
Output current
37
0.5
V
A
No suffix
Q suffix
0
125
125
TJ
Operating virtual junction temperature
°C
–40
Electrical Characteristics
over recommended operating virtual-junction temperature range, VI – VO = 5 V, IO = 0.1 A (unless otherwise noted)
PARAMETER
Line regulation(2)
TEST CONDITIONS(1)
TJ = 25°C
MIN
TYP
0.01
0.02
0.1
MAX
0.04
0.07
0.5
UNIT
VI – VO = 3 V to 40 V
%/V
Full temperature range
TJ = 25°C
Load regulation
IO = 10 mA to 500 mA
%VO
Full temperature range
0.3
1.5
ADJUST terminal current
50
100
5
µA
µA
V
Change in ADJUST terminal current
Reference voltage
VI – VO = 3 V to 40 V,
VI – VO = 3 V to 40 V,
IO = 10 mA to 500 mA
IO = 10 mA to 500 mA
0.2
1.2
1.25
0.7
1.3
Output-voltage temperature stability
%
Minimum load current
to maintain regulation
3.5
10
mA
VI – VO ≤ 15 V
500
150
900
250
0.003
65
Maximum output current
RMS output noise voltage (% of VO)
Ripple rejection
mA
%VO
VI – VO = 40 V, PD ≤ PD(max)
,
TJ = 25°C
f = 10 Hz to 10 kHz,
TJ = 25°C
CADJ = 0(3)
CADJ = 10 µF(3)
VO = 10 V, f = 120 Hz,
TJ = 25°C
dB
66
80
Long-term stability
TJ = 25°C
0.3
1
%/1k hrs
(1) Pulse-testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible.
(2) Line voltage regulation is expressed here as the percentage change in output voltage per 1-V change at the input.
(3) CADJ is connected between the ADJUST terminal and ground.
2
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