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LM317M Datasheet(PDF) 2 Page - Fairchild Semiconductor

Part No. LM317M
Description  3-Terminal 0.5A Positive Adjustable Regulator
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
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LM317M Datasheet(HTML) 2 Page - Fairchild Semiconductor

   
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LM317M
2
Absolute Maximum Ratings
Electrical Characteristics
(VI-VO = 5V, IO = 0.1A, 0°C ≤ TJ ≤ +125°C, PDMAX = 7.5W, unless otherwise specified)
Note:
1. Thermal resistance test board
Size: 76.2mm * 114.3mm * 1.6mm(1S0P)
JEDEC standard: JESD51-3, JESD51-7
2. Assume no ambient airflow.
3. Load and Line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken
into account separately. Pulse testing with low duty cycle is used.
4. CADJ, when used, is connected between the adjustment pin and ground.
Parameter
Symbol
Value
Unit
Input-Output Voltage Differential
VI - VO
40
V
Power Dissipation
PD
Internally Limited
W
Thermal Resistance Junction-Case (TO-220)
Thermal Resistance Junction-Air (TO-220)
Thermal Resistance Junction-Air (D-PAK (Note1,2))
R
θJC
R
θJA
R
θJA
5
81
100
°C/W
°C/W
°C/W
Operating Junction Temperature Range
Tj
0 ~ +125
°C
Storage Temperature Range
TSTG
-65 ~ +125
°C
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
Line Regulation (Note3)
Rline
TA = +25°C, 3V ≤ VI −VO ≤ 40V
-
0.01
0.04
%/ V
3V
≤ VI −VO ≤ 40V
-
0.02
0.07
Load Regulation (Note3)
Rload
TA =+25°C, 10mA ≤ IO ≤ 0.5A
VO ≤ 5V
VO ≥ 5V
-5
0.1
25
0.5
mV
%/VO
10mA
≤ IO ≤ 0.5A
VO ≤ 5V
VO ≥ 5V
-20
0.3
70
1.5
mV
%/VO
Adjustment Pin Current
IADJ
-
-50
100
uA
Adjustment Pin Current Change
ΔIADJ
3V
≤ VI - VO ≤ 40V
10mA
≤ IO ≤ 0.5A, PD < PDMAX
-0.2
5
uA
Reference Voltage
VREF
3V
< VI - VO < 40V
10mA
≤ IO ≤ 0.5A, PD < PDMAX
1.20
1.25
1.30
V
Temperature Stability
STT
-
-
0.7
-
%/VO
Minimum Load Current to
Maintain Regulation
IL(MIN)
VI - VO = 40V
-
3.5
10
mA
Maximum Output Current
IO(MAX)
VI - VO ≤ 15V, PD < PDMAX
0.5
0.9
-
VI - VO = 40V
PD < PDMAX, TA =+25°C
0.15
0.25
-
A
RMS Noise, % of VOUT
eN
TA = +25°C, 10Hz < f < 10kHz
-
0.003
-
%/VO
Ripple Rejection
RR
VO = 10V, f = 120Hz
without CADJ
CADJ = 10uF (Note4)
66
65
80
-dB
Long-Term Stability
ST
TJ = +125°C, 1000Hours
-
0.3
1
%/1000Hrs


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