Datasheet

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 Parameter Test Conditions LM117/LM217 LM317 Unit
Min. Typ. Max. Min. Typ. Max.
∆V
o
Line Regulation V
i
-V
o
= 3 to 40 V T
j
=25
o
C 0.01 0.02 0.01 0.04 %/V
0.02 0.05 0.02 0.07 %/V
∆V
o
Load Regulation
V
o
≤ 5V
I
o
=10mAtoI
MAX
T
j
=25
o
C515 525mV
20 50 20 70 mV
V
o
≥
5V
I
o
=10mAtoI
MAX
T
j
=25
o
C 0.1 0.3 0.1 0.5 %
0.3 1 0.3 1.5 %
I
ADJ
Adjustment Pin Current 50 100 50 100
µ
A
∆
I
ADJ
Adjustment Pin Current V
i
-V
o
= 2.5to 40 V
I
o
=10mAtoI
MAX
0.2 5 0.2 5
µ
A
V
REF
Reference Voltage
(between pin 3 and pin
1)
V
i
-V
o
= 2.5to 40 V
I
o
=10mAtoI
MAX
P
D
≤
P
MAX
1.21.251.3 1.21.251.3 V
∆
V
o
V
o
Output Voltage
Temperature Stability
11%
I
o(min)
Minimum Load Current V
i
-V
o
= 40V 3.5 5 3.5 10 mA
I
o(max)
Maximum Load
Current
V
i
-V
o
≤
15 V
P
D
<P
MAX
1.52.2 1.52.2 A
V
i
-V
o
=40V
P
D
<P
MAX
T
j
=25
o
C
0.4 0.4 A
e
N
Output Noise Voltage
(percentance of V
O
)
B = 10Hz to 10KHz
T
j
=25
o
C
0.003 0.003 %
SVR Supply Voltage
Rejection (*)
T
j
=25
o
C
f = 120 Hz
C
ADJ
=0 65 65 dB
C
ADJ
=10
µ
F
66 80 66 80 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.
LM117/217/317
3/11