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LM317 View Datasheet(PDF) - Motorola => Freescale

Part NameLM317 Motorola
Motorola => Freescale Motorola
DescriptionThree-terminal adjustible output positive voltage regulator
LM317 Datasheet PDF : 10 Pages
1 2 3 4 5 6 7 8 9 10
LM317
MAXIMUM RATINGS
Rating
Input–Output Voltage Differential
Power Dissipation
Case 221A
TA = +25°C
Thermal Resistance, Junction–to–Ambient
Thermal Resistance, Junction–to–Case
Case 936 (D2PAK)
TA = +25°C
Thermal Resistance, Junction–to–Ambient
Thermal Resistance, Junction–to–Case
Operating Junction Temperature Range
Storage Temperature Range
Symbol
VI–VO
Value
Unit
40
Vdc
PD
Internally Limited W
θJA
65
°C/W
θJC
5.0
°C/W
PD
Internally Limited W
θJA
70
°C/W
θJC
5.0
°C/W
TJ
– 40 to +125
°C
Tstg
– 65 to +150
°C
ELECTRICAL CHARACTERISTICS (VI–VO = 5.0 V; IO = 0.5 A for D2T and T packages; TJ = Tlow to Thigh [Note 1]; Imax and Pmax
[Note 2]; unless otherwise noted.)
Characteristics
Figure Symbol
Min
Typ
Max
Unit
Line Regulation (Note 3), TA = +25°C, 3.0 V VI–VO 40 V
Load Regulation (Note 3), TA = +25°C, 10 mA IO Imax
VO 5.0 V
VO 5.0 V
Thermal Regulation, TA = +25°C (Note 6), 20 ms Pulse
Adjustment Pin Current
Adjustment Pin Current Change, 2.5 V VI–VO 40 V,
10 mA IL Imax, PD Pmax
Reference Voltage, 3.0 V VI–VO 40 V,
10 mA IO Imax, PD Pmax
Line Regulation (Note 3), 3.0 V VI–VO 40 V
Load Regulation (Note 3), 10 mA IO Imax
VO 5.0 V
VO 5.0 V
Temperature Stability (Tlow TJ Thigh)
Minimum Load Current to Maintain Regulation (VI–VO = 40 V)
Maximum Output Current
VI–VO 15 V, PD Pmax, T Package
VI–VO = 40 V, PD Pmax, TA = +25°C, T Package
RMS Noise, % of VO, TA = +25°C, 10 Hz f 10 kHz
Ripple Rejection, VO = 10 V, f = 120 Hz (Note 4)
Without CAdj
CAdj = 10 µF
Long–Term Stability, TJ = Thigh (Note 5), TA = +25°C for
Endpoint Measurements
1
Regline
2
Regload
Regtherm
3
IAdj
1, 2
IAdj
0.01
0.04
%/V
5.0
25
mV
0.1
0.5
% VO
0.03
0.07
% VO/W
50
100
µA
0.2
5.0
µA
3
Vref
1.2
1.25
1.3
V
1
Regline
0.02
0.07
%V
2
Regload
20
70
mV
0.3
1.5
% VO
3
TS
0.7
% VO
3
ILmin
3.5
10
mA
3
Imax
A
1.5
2.2
0.15
0.4
N
0.003
% VO
4
RR
dB
65
66
80
3
S
0.3
1.0
%/1.0 k
Hrs.
Thermal Resistance Junction to Case, T Package
RθJC
5.0
°C/W
NOTES: 1. Tlow to Thigh = 0° to +125°C, for LM317T, D2T. Tlow to Thigh = – 40° to +125°C, for LM317BT, BD2T.
2. Imax = 1.5 A, Pmax = 20 W
3. Load and line regulation are specified at constant junction temperature. Changes 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.
5. Since Long–Term Stability cannot be measured on each device before shipment, this specification is an engineering estimate of average stability
from lot to lot.
6. Power dissipation within an IC voltage regulator produces a temperature gradient on the die, affecting individual IC components on the die. These
effects can be minimized by proper integrated circuit design and layout techniques. Thermal Regulation is the effect of these temperature gradients
on the output voltage and is expressed in percentage of output change per watt of power change in a specified time.
2
MOTOROLA ANALOG IC DEVICE DATA
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