LM117/217/317
BASIC ADJUSTABLE REGULATOR
ELECTRICAL CHARACTERISTICS
(V
i
- V
o
= 5 V, I
o
= 500 mA, I
MAX
= 1.5A and P
MAX
= 20W, unless
otherwise specified)
Symbol
∆V
o
∆V
o
Parameter
Line Regulation
Load Regulation
Test Conditions
V
i
- V
o
= 3 to 40 V
V
o
≤
5V
I
o
= 10 mA to I
MAX
V
o
≥
5V
I
o
= 10 mA to I
MAX
I
ADJ
∆
I
ADJ
V
REF
Adjustment Pin Current
Adjustment Pin Current V
i
- V
o
= 2.5 to 40 V
I
o
= 10 mA to I
MAX
Reference Voltage
V
i
- V
o
= 2.5 to 40 V
(between pin 3 and pin I
o
= 10 mA to I
MAX
1)
P
D
≤
P
MAX
Output Voltage
Temperature Stability
Minimum Load Current V
i
- V
o
= 40 V
Maximum Load
Current
V
i
- V
o
≤
15 V
P
D
< P
MAX
V
i
- V
o
= 40 V
P
D
< P
MAX
o
T
j
= 25 C
e
N
SVR
Output Noise Voltage
(percentance of V
O
)
Supply Voltage
Rejection (*)
B = 10Hz to 10KHz
T
j
= 25
o
C
T
j
= 25
o
C
f = 120 Hz
C
ADJ
=0
C
ADJ
=10
µ
F
66
1.5
1.2
T
j
= 25
o
C
T
j
= 25
o
C
T
j
= 25 C
o
LM117/LM217
Min.
Typ.
0.01
0.02
5
20
0.1
0.3
50
0.2
1.25
Max.
0.02
0.05
15
50
0.3
1
100
5
1.3
1.2
Min.
LM317
Typ.
0.01
0.02
5
20
0.1
0.3
50
0.2
1.25
Max.
0.04
0.07
25
70
0.5
1.5
100
5
1.3
Unit
%/V
%/V
mV
mV
%
%
µ
A
µ
A
V
∆
V
o
V
o
I
o (m in)
I
o (max )
1
3.5
2.2
0.4
5
1.5
1
3.5
2.2
0.4
10
%
mA
A
A
0.003
65
80
66
0.003
65
80
%
dB
dB
(*) CADJ is connected between pin 1 and ground.
Note:
(1) Unless otherwise specified the above specs, apply over the following conditions : LM 117 T
j
= – 55 to 150°C;
LM 217 T
j
= – 25 to 150°C ; LM 317 T
j
= 0 to 125°C.
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