IL317
Electrical characteristics
(Vi-Vo= 5.0V, Io = 0.5 A, TJ = Tlow to Thigh (see Note 1); Imax = 1.5 A and Pmax = 20 W unless otherwise
noted)
Characteristic
Line Regulation (TA=+25°C)
3.0V ≤ Vi - Vo ≤40 V
Load Regulation(TJ=+25°C)
10mA≤Io≤Imax,
Symbol
Regline
Min
Typ
Max
Unit
-
0.01
0.04
%/V
Regload
-
-
-
5.0
0.1
0.03
25
mV
%/Vo
%/W
Vin ≤5V
Vin≥5 V
0.5
-
0.07
Thermal Regulation (TA=+25°C)
20 ms Pulse
Adjustment Pin Current
IAdj
∆IAdj
-
-
50
0.2
100
5.0
µA
µA
Adjustment Pin Current Change
2.5 ≤ Vi - Vo ≤ 40 V
10mA ≤IL≤ Imax, PD ≤ Pmax
Reference Voltage (Note 4)
3.0 ≤ Vi - Vo ≤ 40 V
10mA ≤IL≤ Imax, PD ≤ Pmax
Line Regulation (Note 3)
3.0 V ≤ Vi - Vo ≤40 V
Load Regulation (Note 3)
10mA≤Io≤Imax,
Vref
1.2
-
1.25
0.02
1.3
V
Regline
Regload
0.07
%/V
-
-
-
20
70
%/V
%/V
Vin ≤5V
Vin≥5 V
0.3
1.5
Ts
0.7
-
Temperature Stability (Tlow ≤ Tj
≤
Ttigh)
Minimum Load Current to
Maintain Regulation (Vi - Vo = 40 V)
Maximum Output Current
Vi - Vo≤ 15 V , P ≤ 20 W
Vi - Vo = 40 V, P ≤20W, TA=+25°C
RMS Nose , % of Vo
ILmin
Imax
-
3.5
10
mA
A
1.5
2.2
0.4
0.003
-
-
-
0.15
N
-
%/Vo
TA=+25°C, 10 Hz ≤ f ≤ 10 kHz
Ripple Rejection, Vo = 10 V, f = 120 Hz
(Note 5)
RR
dB
Without Cadj
Cadj = 10 µF
-
65
80
0.3
-
-
66
Long-Term Stability, Tj = Thigh (Note 6)
TA=+25°C for Endpoint Measurements
Thermal Resistance Junction to Case
S
-
-
1.0
%/1.0 k
Hrs.
5.0
-
RθJC
°C/W
Notes: (1) Tlow = 0 °C , Thigh = +125 °C
(2) Imax = 0.5 A , Pmax
(3) Load and line regulation are specified at constant junction tempereture. Changes in Vo due to heating
effects must be taken into account separately. Pulse testing with low duty cycle is used.
(4) Selected devices with tightened tolerance reference voltage available.
(5) Cadj , when used, connected between the adjustment pin and ground.
(6) 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.
2
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