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LM317AK View Datasheet(PDF) - Semelab - > TT Electronics plc

Part Name
Description
Manufacturer
LM317AK
Semelab
Semelab - > TT Electronics plc  Semelab
LM317AK Datasheet PDF : 7 Pages
1 2 3 4 5 6 7
POSITIVE ADJUSTABLE
VOLTAGE REGULATOR
ELECTRICAL CHARACTERISTICS(1)(3) (TC = 25°C unless otherwise stated)
LM317A, IP317A, LM317AHV, IP317AHV
Symbols Parameters
Test Conditions
Min.
VREF
VOUT
VIN
VOUT
IOUT
IADJ
IADJ
IMIN
ICL
VOUT
TEMP
VOUT
TIME
en
Reference Voltage
Line Regulation (2)
Load Regulation (2)(3)
Thermal Regulation
Ripple Rejection
Adjust Pin Current
Adjust Pin Current Change
Minimum Load Current
Current Limit
Temperature Stability
IOUT = 10mA
10mA IOUT IMAX, P PMAX,
3V (VIN-VOUT) VMAX
1.238
1.225
3V (VIN-VOUT) VMAX,
IOUT = 10mA
VOUT 5V
10mA IOUT IMAX
VOUT 5V
VOUT 5V
VOUT 5V
VIN = 14.58V, IOUT = 1.5A,
PD = 20W, TA = 25°C, 20ms Pulse
VOUT = 10V
CADJ = 0
f = 120Hz
CADJ = 10µF 66
10mA IOUT IMAX,
2.5V (VIN-VOUT) VMAX
(VIN - VOUT) = 40V
(VIN - VOUT) = 60V (HV Series)
(VIN - VOUT) 15V
1.5
(VIN - VOUT) = 40V
0.15
(VIN - VOUT) = 60V (HV Series)
Long Term Stability
RMS Output Noise
(% of VOUT)
TA = 125°C, 1000Hrs
TA = 25°C, 10Hz f 10KHz
Typ
1.250
1.250
0.005
0.010
5
0.1
15
0.3
0.002
65
80
50
0.2
3.5
3.5
2.2
0.4
0.1
1.0
0.3
0.003
Max.
1.262
1.270
0.010
0.020
25
0.5
50
1.0
0.020
100
5
10
12
2
1.0
Units
V
%/V
mV
%
mV
%
%/W
dB
µA
mA
A
%
Notes
The denotes the specifications which apply over the full operating temperature range.
(1) Test conditions unless otherwise stated: VIN - VOUT = 5V, IOUT = 0.5A, PMAX = 20W, IMAX = 1.5A
(2) Regulation is measured at constant junction temperature, using pulse testing at a low duty cycle. Changes in output voltage due to heating
effects are covered under thermal regulation specifications. Load regulation is measured at 1/8” below the bottom of the package.
(3) VMAX = 40V for LM117, IP117, LM117A, IP117A, LM317, IP317, LM317A, IP317A
VMAX = 60V for LM117HV, IP117HV, LM117AHV, IP117AHV, LM317HV, IP317HV, LM317AHV, IP317AHV
Semelab Limited
Coventry Road, Lutterworth, Leicestershire, LE17 4JB
Telephone +44 (0) 1455 556565 Fax +44 (0) 1455 552612 Email: sales@semelab-tt.com
Document Number 8375
Website: http://www.semelab-tt.com
Issue 1
Page 5 of 7
 

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