TECHNICAL DATA
100mA ADJUSTABLE OUTPUT,
POSITIVE VOLTAGE REGULATOR IC
PIN CONNECTIONS
Features
Output Current in Excess of 100mA
Output Adjustable Between 1.2 V and
37 V
Internal Shot Circuit Current Limiting
Internal Thermal Overload Protection
Output Transistor Safe-Area
Compensation
Floating Operation for High Voltage
Applications
Standard 3-Lead Transistor Package
Eliminates Stocking Many Fixed Voltages
3. ADJUST
2. OUTPUT
1. INPUT
ADJUST
OUTPUT
INPUT
IL317L
SOT-89
TO-92
ABSOLUTE MAXIMUM RATINGS
Input - Output Voltage Differential
40 V
Operating Junction Temperature Range
-10
C to +125C
from power supply filter.
**Co is not needed for stability, however, it does improve transient response.
Vout = 1.25 V (1+R2/R1) + I
Adj
R2
Since I
Adj
is controlled to less than 100A, the error associated with this term is
negligible in most applications.
1
IL317L
ELECTRICAL CHARACTERISTICS DIE ON WAFER
(VI - Vo = 3.0V, IO = 40mA, TA=25
C, unless otherwise noted, Imax and Pmax (Note 1)
CHARACTERISTIC
Symbol
TEST CONDITION
Min
Max
Unit
Reference Voltage
(TA= -10
C to +125C)
VO
3.0V
VI-Vo 40V
10mA
Io Imax, PD Pmax
1.2 1.3 V
Line Regulation (Note 2)
VOV 3.0V VI-Vo 40V, Io=10mA
160
mV
Line Regulation (TA= -10
C to
+125
C), (Note 2)
VOV 3.0V VI-Vo 40V, Io=10mA
180
mV
. Load Regulation, (Note 2)
VOI 10mA Io Imax, VO = 5.0V
6.0
mV
Load Regulation (TA= -10
C to
+125
C), (Note 2)
VOI 10mA Io Imax, VO = 5.0V
10
mV
Adjustment Pin Current
IAdj
10
100
A
Adjustment Pin Current Change
IAdj 3.0V VI-Vo 40V
10mA
Io Imax, PD Pmax
5.0
A
Maximum Output Current
IO MAX
VI-VO =3.0V, PD
Pmax
VI-VO = 40V, PD
Pmax
0.1
0.025
0.3
0.15
A
Minimum Load Current to Maintain
Regulation VO=1.2V, f=120Hz
IL MIN
VI-Vo
40V
10
mA
Ripple Rejection
RR
Vo = 1.2V, f= 120Hz
66
dB
Notes: 1. Imax=100mA, Pmax=625mW;
2. 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.
Fig.1 Test Circuit for Vo
>1.25V Fig.2 Test Circuit for Vo=1.25V
i=0,1
F, o=1,0 F. i=0,1F, o=1,0 F.
Vo=1,25(1+R2/R1)I
ADJ
R2
2
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