DATA SHEET
DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUIT
μ
PC337
3-TERMINAL NEGATIVE ADJUSTABLE REGULATOR
DESCRIPTION
The
μ
PC337 is an adjustable 3-terminal negative voltage regulator,
which has 1.5 A for the output current. The output voltage
can be set any value between
−1.3
V and
−30
V by two external resistors.
PIN CONFIGURATION (Marking Side)
μ
PC337HF,
μ
PC337HF-AZ
FEATURES
•
•
Output current is up to 1.5 A
On-chip some protection circuit (over current protection, SOA prote-
ction and thermal shut down).
<R>
1
2
3
1 : ADJ
2 : INPUT
3 : OUTPUT
ORDERING INFORMATION
Part Number
Package
3PIN PLASTIC SIP (MP-45G) (Isolated TO-220)
Note
Output Voltage
−1.3
V to
−30
V
−1.3
V to
−30
V
Marking
C337
C337
Package Type
Packed in envelope
Packed in envelope
μ
PC337HF
μ
PC337HF-AZ
3PIN PLASTIC SIP (MP-45G) (Isolated TO-220)
Note
Pb-free (This product does not contain Pb in external electrode.)
EQUIVALENT CIRCUIT
R
3
R
41
Q
1
Q
3
Q
8
Q
5
Q
12
Q
13
R
22
D
4
R
23
D
5
R
5
R
24
Q
14
R
14
Q
15
R
16
Q
19
Q
18
R
15
Q
16
Q
17
R
18
R
20
R
10
R
11
Q
21
R
21
Q
20
R
13
R
17
Q
22
D
6
Q
10
Q
11
Q
26
R
33
R
35
Q
27
R
34
R
25
D
3
Q
9
D
1
R
9
D
2
C
1
C
2
R
6
Q
6
Q
30
Q
31
R
30
R
39
R
38
Q
7
OUTPUT
R
8
C
3
R
7
Q
28
Q
29
R
36
R
1
Q
2
Q
4
R
2
R
42
R
4
D
7
ADJ
R
26
Q
23
C
4
R
28
Q
24
R
27
R
31
R
29
R
37
C
5
Q
25
R
32
R
19
R
40
INPUT
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 products and/or types are available in every country. Please check with an NEC Electronics
sales representative for availability and additional information.
Document No. G13783EJ3V0DS00 (3rd edition)
Date Published November 2006 NS CP(N)
Printed in Japan
1986
The mark <R> shows major revised points.
The revised points can be easily searched by copying an "<R>" in the PDF file and specifying it in the "Find what:" field.
μ
PC337
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
−40
15
Note
Unit
V
W
°C
°C
°C
°C/W
°C/W
−20
to +85
−20
to +150
−65
to +150
7
65
Note
Internally limited.
When operating junction temperature rise above 150°C, the internal protection circuit shutdown output voltage.
<R>
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.
TYPICAL CONNECTION
D
2
INPUT
V
IN
μ
PC337
OUTPUT
V
O
D
1
ADJ
C
IN
1
μ
F
C
ADJ
10
μ
F
R
2
+
R
1
120
Ω
C
O
4.7
μ
F
+
Remark
R
1
, R
2
: Resistor to set the output voltage.
R
2
R
2
V
O
= (1 +
)
•
V
REF
+ I
ADJ
•
R
2
≅
(1 +
)
•
V
REF
R
1
R
1
C
IN
C
O
: Need to stop the oscillation for the long input wire length.
: Need to stop the oscillation for the long output wire length.
V
O
(V)
−2.5
−5.0
−12
−24
−30
R
2
(Ω : TYP.)
120
360
1032
2184
2760
Improve the transient stability of the output voltage when the load current is suddenly changed.
C
ADJ
: Improve the ripple rejection and the oscillate rejection.
D
1
D
2
: Protect against C
ADJ
when output pin is shorted.
: Need for V
IN
>
V
O
.
2
Data Sheet G13783EJ3V0DS
μ
PC337
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.
−5
MAX.
−38.7
−40
−30
1.5
+125
Unit
V
V
V
A
°C
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
J
= 25°C, 3 V
≤
|V
IN
– V
O
|
≤
40 V
3 V
≤
|V
IN
– V
O
|
≤
40 V
Load Regulation
REG
L
T
J
= 25°C,
10 mA
≤
l
O
≤
1.5 A
10 mA
≤
l
O
≤
1.5 A
| V
O
|
≤
5 V
| V
O
|
≥
5 V
| V
O
|
≤
5 V
| V
O
|
≥
5 V
Thermal Regulation
REG
TH
T
J
= 25°C, | V
IN
−
V
O
| = 40 V, V
O
=
−10
V,
0 A
≤
I
O
≤
0.25 A, t = 10 ms
ADJ pin Output Current
I
ADJ
Change
I
ADJ
ΔI
ADJ
T
J
= 25°C, 3 V
≤
|V
IN
– V
O
|
≤
40 V,
10 mA
≤
I
O
≤
1.5 A, P
T
≤
15 W
Reference Voltage
V
REF
3 V
≤
|V
IN
– V
O
|
≤
40 V,
10 mA
≤
I
O
≤
1.5 A, P
T
≤
15 W
Temperature Stability of V
REF
Minimum Load Current
Peak Output Current
ΔV
REF
/ΔT
I
OMIN.
I
Opeak
I
O
= 5 mA
| V
IN
−
V
O
| = 40 V
3 V
≤
| V
IN
−
V
O
|
≤
15 V
T
J
= 25°C, | V
IN
−
V
O
| = 40 V
Output Noise Voltage (RMS)
Ripple Rejection
V
n
R
•
R
T
J
= 25°C, 10 Hz
≤
f
≤
10 kHz
T
J
= 25°C,
ΔV
IN
= 1 V
r.m.s.
f = 120 Hz, V
O
=
−10
V
C
ADJ
= 0
μ
F
C
ADJ
= 10
μ
F
66
1.5
0.15
−1.20
Note
MIN.
TYP.
0.005
0.01
30
0.6
45
0.9
0.005
60
2
MAX.
0.04
0.07
50
1.0
70
1.5
0.04
100
5
Unit
%/V
%/V
mV
%
mV
%
%/W
μ
A
μ
A
−1.25
−0.6
2.1
2.3
0.8
0.002
60
75
−1.30
V
%
10
2.9
mA
A
A
%
dB
dB
Note
Pulse testing Duty Cycle
≤
2%
Data Sheet G13783EJ3V0DS
3
μ
PC337
TYPICAL CHARACTERISTICS (T
J
= 25°C, unless otherwise specified.)
P
T
vs T
A
25
2.0
V
IN
=
−10
V
V
O
=
−5
V
P
T
- Total Power Dissipation - W
REG
L
- Load Regulation - %
20
Infinite heatsink
15
1.5
REG
L
vs T
J
1.0
10
With 10°C/W heatsink
0.5
5
No heatsink
0
25
50
75
100
125
0
−25
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
V
REF
- Reference Voltage - V
+25°C
2.0
+125°C
−1.27
V
REF
vs T
J
V
IN
−V
O
=
−5
V
I
O
= 10 mA
−1.26
I
Opeak
- Peak Output Current - A
−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
R . R vs f
90
I
OMIN.
- Minimum Load Current - mA
80
R . R - Ripple Rejection - dB
70
60
0
μ
F
50
40
30
20
10
10
100
1k
f - Frequency - Hz
10 k
100 k
0
−10
C
ADJ
= 10
μ
F
V
IN
=
−15
V
V
O
=
−10
V
I
O
= 0.5 A
C
IN
= 1
μ
F
C
O
= 4.7
μ
F
4
I
OMIN.
vs (V
IN
– V
O
)
3
2
T
J
=
−20°C
+125°C
1
+25°C
−20
−30
−40
(V
IN
– V
O
) - Input-Output Voltage Differential - V
4
Data Sheet G13783EJ3V0DS
μ
PC337
PACKAGE DRAWING
3PIN PLASTIC SIP (MP-45G)
A
E
B
P
N
I
L
D
1
2
3
M
K
Y
H
Z
C
F
NOTE
J
V
U
G
M
ITEM
A
B
C
D
E
F
G
H
I
J
K
L
M
N
P
U
V
Y
Z
MILLIMETERS
10.0±0.2
7.0±0.2
1.50±0.2
17.0±0.3
φ
3.3±0.2
0.75±0.10
0.25
2.54 (T.P.)
5.0±0.3
2.46±0.2
5.0±0.2
8.5±0.2
8.5±0.2
4.5±0.2
2.8±0.2
2.4±0.5
0.65±0.10
8.9±0.7
1.30±0.2
P3HF-254B-4
Each lead centerline is located within 0.25 mm of
its true position (T.P.) at maximum material condition.
Data Sheet G13783EJ3V0DS
5
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