DATA SHEET
DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUIT
µ
PC317
3-TERMINAL POSITIVE ADJUSTABLE REGULATOR
DESCRIPTION
The
µ
PC317 is an adjustable 3-terminal positive voltage regulator, which has 1.5 A capable for the output current.
The output voltage can be set any value between 1.3 V and 30 V by two external resistors.
FEATURES
•
•
Output current excess of 1.5 A
On-chip some protection circuit (over current protec-
tion, SOA protection and thermal shut down).
PIN CONFIGURATION (Marking Side)
3-pin plastic SIP (MP-45G)
µPC317HF
ORDERING INFORMATION
Part Number
Package
3-pin plastic SIP (MP-45G) (isolated TO-220)
1
2
3
1 : ADJ
2 : OUTPUT
3 : INPUT
µPC317HF
EQUIVALENT CIRCUIT
INPUT
R
1
R
2
R
3
R
4
Q
10
R
27
Q
2
R
6
R
7
D
1
Q
3
R
9
R
10
R
11
R
12
R
13
Q
5
Q
6
R
8
Q
9
Q
7
Q
11
Q
12
C
1
C
2
R
14
R
26
R
25
OUTPUT
ADJ
Q
23
Q
4
Q
8
Q
14
Q
13
Q
15
Q
17
Q
19
R
15
Q
16
Q
18
Q
20
C
3
Q
21
R
20
Q
24
R
21
R
16
R
17
R
18
R
22
D
3
R
19
Q
25
D
2
Q
26
R
23
R
5
Q
22
R
24
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for
availability and additional information.
Document No. G12826EJ3V0DS00 (3rd edition)
Date Published January 2000 N CP(K)
Printed in Japan
©
2000
µ
PC317
ABSOLUTE MAXIMUM RATINGS (T
A
= 25°C, unless otherwise specified.)
Parameter
Input-Output Voltage Differential
Total Power Dissipation (T
C
= 25°C)
Operating Ambient Temperature
Operating Junction Temperature
Storage Temperature
Thermal Resistance (junction to case)
Thermal Resistance (junction to ambient)
Symbol
V
IN
−
V
O
P
T
T
A
T
J
T
stg
R
th (J–C)
R
th (J–A)
Rating
–0.3 to +40
15
Note
Unit
V
W
°C
°C
°C
°C/W
°C/W
–20 to +80
–20 to +150
–65 to +150
5
65
Note
Internally limited.
When operating junction temperature rise up to 150°C (≤200°C), the internal circuit shutdown output
voltage.
Caution Product quality may suffer if the absolute maximum rating is exceeded even momentarily for any
parameter. That is, the absolute maximum ratings are rated values at which the product is on the
verge of suffering physical damage, and therefore the product must be used under conditions
that ensure that the absolute maximum ratings are not exceeded.
RECOMMENDED OPERATING CONDITIONS
Parameter
Input-Output Voltage Differential
Input Voltage
Output Voltage
Output Current
Operating Junction Temperature
Symbol
V
IN
– V
O
V
IN
V
O
I
O
T
J
MIN.
3
4.3
1.3
0.01
–20
TYP.
MAX.
38.7
40
30
1.5
+125
Unit
V
V
V
A
°C
Caution The recommended operating range may be exceeded without causing any problems provided
that the absolute maximum ratings are not exceeded. However, if the device is operated in a way
that exceeds the recommended operating conditions, the margin between the actual conditions
of use and the absolute maximum ratings is small, and therefore thorough evaluation is
necessary. The recommended operating conditions do not imply that the device can be used
with all values at their maximum values.
2
Data Sheet G12826EJ3V0DS00
µ
PC317
TYPICAL CONNECTION
D
2
INPUT
V
IN
µ
PC317
OUTPUT
V
O
D
1
ADJ
C
IN
0.1
µ
F
+
C
ADJ
10
µ
F
R
2
R
1
240
Ω
+
C
O
1
µ
F
Remark
R
1
, R
2
: Resistor to set the output voltage.
V
O
= (1 +
V
O
(V)
1.25
2.5
5.0
12
24
30
R
2
R
2
.
)
•
V
REF
+ I
ADJ
•
R
2
. (1 +
=
)
•
V
REF
R
1
R
1
R
2
(Ω : TYP.)
0
240
720
2064
4368
5520
C
IN
C
O
:
:
Need to stop the oscillation for the long input wiring length.
Need to stop the oscillation for the long output wiring length.
Improve the transient stability of the output voltage when the lord current is suddently changed.
Improve the ripple rejection and the oscillate rejection.
Protect against C
ADJ
from output short.
Need for V
IN
< V
O
.
C
ADJ
:
D
1
D
2
:
:
Data Sheet G12826EJ3V0DS00
3
µ
PC317
ELECTRICAL CHARACTERISTICS
(V
IN
−
V
O
= 5 V, I
O
= 0.5 A, 0°C
≤
T
J
≤
+125°C, unless otherwise specified.)
°
°
Parameter
Line Regulation
Symbol
REG
IN
Conditions
T
A
= 25°C, 3 V
≤
(V
IN
– V
O
)
≤
40 V, I
O
= 0.1 A
3 V
≤
(V
IN
– V
O
)
≤
40 V, I
O
= 0.1 A
Load Regulation
REG
L
T
J
= 25°C
10 mA
≤
l
O
≤
1.5 A
10 mA
≤
l
O
≤
1.5 A
Note
Note
Note
MIN.
TYP.
0.01
0.02
5
0.1
20
0.3
0.01
50
MAX.
0.04
0.07
25
0.5
70
1.5
0.07
100
5
1.30
Unit
%/V
%/V
mV
%
mV
%
%/W
V
O
≤
5 V
V
O
≥
5 V
V
O
≤
5 V
V
O
≥
5 V
Note
Thermal Regulation
ADJ pin Output Current
I
ADJ
Change
Reference Voltage
REG
TH
I
ADJ
∆I
ADJ
V
REF
T
A
= 25°C, 0.2 ms
≤
t
≤
20 ms
µ
A
µ
A
V
%
10 mA
≤
I
O
≤
1.5 A, P
T
≤
15 W
10 mA
≤
I
O
≤
1.5 A, P
T
≤
15 W
1.20
0.4
1.25
0.7
Temperature Stability of V
REF
∆V
REF
/∆T
Minimum Load Current
Peak Output Current
I
OMIN.
I
Opeak
V
IN
−
V
O
= 40 V
5 V
≤
(V
IN
−
V
O
)
≤
15 V
V
IN
−
V
O
= 40 V
Output Noise Voltage (RMS)
Ripple Rejection
V
n
R
•
R
T
A
= 25°C, 10 Hz
≤
f
≤
10 kHz
T
A
= 25°C,
∆V
IN
= 1 V
r.m.s
f = 120 Hz, V
O
= 10 V
C
ADJ
= 0
C
ADJ
= 10
µ
F
56
1.5
0.15
4.7
2.2
0.8
0.001
48
65
10
2.9
mA
A
A
%
dB
dB
Note
Measured at constant junction temperature, using pulse testing with a low duty cycle.
PW = 10 ms, Duty Cycle
≤
2 %
4
Data Sheet G12826EJ3V0DS00
µ
PC317
TYPICAL CHARACTERISTICS (T
A
= 25°C, unless otherwise specified. Reference Values.)
°
P
T
vs T
A
25
1.0
V
IN
= 10 V
V
O
= 5 V
REG
L
- Load Regulation - %
REG
L
vs T
J
P
T
- Total Power Dissipation - W
20
Infinite heatsink
15
0.5
10
With 10°C/W heatsink
5
No heatsink
0
−25
0
25
50
75
100
125
0
25
50
75
100
125
T
A
- Operating Ambient Temperature -
°C
T
J
- Operating Junction Temperature -
°C
I
Opeak
vs (V
IN
– V
O
)
3.0
T
J
=
−20 °C
I
Opeak
- Peak Output Current - A
V
REF
- Reference Voltage - V
V
REF
vs T
J
1.27
V
IN
−V
O
= 5 V
I
O
= 0.5 A
1.26
25
°C
2.0
125
°C
1.25
1.0
1.24
0
10
20
30
40
1.23
−25
0
25
50
75
100
125
(V
IN
– V
O
) - Input - Output Voltage Differential - V
T
J
- Operating Junction Temperature -
°C
I
ADJ
vs T
J
60
I
OMIN
. - Minimum Load Current - mA
I
OMIN
. vs V
DIF
6
V
IN
−V
O
= 5 V
I
O
= 0.5 A
I
ADJ
- ADJ pin Output Current -
µ
A
5
T
J
=
−20 °C
T
J
= 125
°C
4
50
3
2
T
J
= 25
°C
1
40
−25
0
25
50
75
100
125
0
10
20
30
40
T
J
- Operating Junction Temperature -
°C
V
DIF
- Minimum Dropout Voltage - V
Data Sheet G12826EJ3V0DS00
5
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