DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUIT
µ
PC37M31,37M32
TWO-OUTPUT POSITIVE VOLTAGE REGULATORS
DESCRIPTION
The
µ
PC37M31 and 37M32 are series regulators with two outputs, OUTPUT
1
: 1 A and OUTPUT
2
: 0.5 A, built in a
single package. OUTPUT
1
outputs 3.3 V and OUTPUT
2
outputs 1.8 V and 2.5 V. These regulators can be used to
realize set miniaturization and component reduction due to the use of on MP-3 or MP-3Z package.
FEATURES
•
Two outputs, 3.3 V and 1.8 V or 2.5 V, built in a single package
•
Output voltage accuracy: ±2%
•
Peak output current: OUTPUT
1
: 1 A, OUTPUT
2
: 0.5 A
•
On-chip saturation protector at low input voltage
•
On-chip overcurrent limiter
•
On-chip thermal protection
PIN CONFIGURATION (Marking Side)
MP-3Z (5-pin), MP-3 (5-pin)
1: INPUT
2: NC
3: GND
4: OUTPUT
1
5: OUTPUT
2
6: GND (Fin)
6
1
2
3
4
5
ORDERING INFORMATION
Part Number
Package
5-pin MP-3Z (SC-98)
5-pin MP-3Z (SC-98)
Marking
37Mxx
37Mxx
Packing Type
•
Bag stuffing
•
Embossed-type taping (16 mm tape)
•
Pin 1 on drawout side
•
2000 pcs/reel
µ
PC37MxxTJ
µ
PC37MxxTJ-E1
µ
PC37MxxTJ-E2
5-pin MP-3Z (SC-98)
37Mxx
•
Embossed-type taping (16 mm tape)
•
Pin 1 on takeup side
•
2000 pcs/reel
µ
PC37MxxHB
5-pin MP-3 (SC-99)
37Mxx
•
Bag stuffing
"xx" in the part number and marking columns indicates the following.
Example
Output Voltage
Part Number
OUTPUT
1
3.3 V
3.3 V
OUTPUT
2
1.8 V
2.5 V
Marking
37M31
37M32
µ
PC37M31TJ
µ
PC37M32TJ
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 NEC Electronics sales
representative for availability and additional information.
Document No. G16444EJ1V0DS00 (1st edition)
Date Published November 2002 NS CP(K)
Printed in Japan
2002
µ
PC37M31,37M32
ABSOLUTE MAXIMUM RATINGS (T
A
= 25°C, unless otherwise specified)
Parameter
Input Voltage
Internal 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
P
T
T
A
T
J
T
stg
R
th (J-C)
R
th (J-A)
Rating
−0.3
to +8
10
Note
−40
to +85
−40
to +150
−55
to +150
12.5
125
Unit
V
W
°C
°C
°C
°C/W
°C/W
Note
Internally limited. When the operating junction temperature rises over 150°C, the internal circuit shuts down
the 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.
TYPICAL CONNECTION
D
12
D
11
INPUT
µ
PC37M31, 37M32
+
C
OUT1
+
C
OUT2
D
21
D
22
OUTPUT
1
OUTPUT
2
C
IN
C
IN
: 0.1
µ
F or higher. Set this value according to the length of the line between the regulator and INPUT pin. Be sure
to connect C
IN
to prevent parasitic oscillation. Use of a film capacitor or other capacitor with excellent voltage
and temperature characteristics is recommended. If using a laminated ceramic capacitor, it is necessary to
ensure that C
IN
is 0.1
µ
F or higher for the voltage and temperature range to be used.
C
OUT1
, C
OUT2
: 10
µ
F or higher. Be sure to connect C
OUT1
and C
OUT2
to prevent oscillation and improve excessive load
regulation. Place C
IN
, C
OUT1
and C
OUT2
as close as possible to the IC pins (within 2 cm). Also, use an
electrolytic capacitor with low impedance characteristics if considering use at sub-zero temperatures.
D
11
, D
12
: If the OUTPUT
1
pin or OUTPUT
2
pin has a higher voltage than the INPUT pin, connect a diode.
D
21
, D
22
: If the OUTPUT
1
pin or OUTPUT
2
pin has a lower voltage than the GND pin, connect a Schottky barrier
diode.
Caution Make sure that no voltage is applied to the OUTPUT
1
pin or
OUTPUT
2
pin from external.
2
Data Sheet G16444EJ1V0DS
µ
PC37M31,37M32
RECOMMENDED OPERATING CONDITIONS
Parameter
Input Voltage
Output Current 1
Output Current 2
Operating Ambient Temperature
Operating Junction Temperature
V
IN
I
O1
I
O2
T
A
T
J
Symbol
MIN.
4.5
0
0
−40
−40
TYP.
MAX.
6.0
0.5
0.3
+85
+125
Unit
V
A
A
°C
°C
Caution Use of conditions other than the above-listed recommended operating conditions is not a problem
as long as the absolute maximum ratings are not exceeded.
However, since the use of such
conditions diminishes the margin of safety, careful evaluation is required before such conditions
are used. Moreover, using the MAX. value for all the recommended operating conditions is not
guaranteed to be safe.
ELECTRICAL CHARACTERISTICS
µ
PC37M31 (T
J
= 25°C, V
IN
= 5 V, I
O1
= 0.5 A, I
O2
= 0.3 A, unless otherwise specified)
Parameter
OUTPUT
1
(3.3 V)
Output Voltage 1
Line Regulation 1
Load Regulation 1
Output Noise Voltage 1
Ripple Rejection 1
Short Circuit Current 1
Peak Output Current 1
Temperature Coefficient of
Output Voltage 1
OUTPUT
2
(1.8 V)
Output Voltage 2
Line Regulation 2
Load Regulation 2
Output Noise Voltage 2
Ripple Rejection 2
Short Circuit Current 2
Peak Output Current 2
Temperature Coefficient of
Output Voltage 2
Total
Quiescent Current
Startup Quiescent Current
Dropout Voltage
(INPUT to OUTPUT
1
)
I
BIAS
I
BIAS (S)
V
DIF1
I
O1
= 0 A, I
O2
= 0 A
V
IN
= 1.7 V, I
O1
= 0 A, I
O2
= 0 A
I
O1
= 0.5 A
−
−
−
4
7
0.6
8
40
1.0
mA
mA
V
V
O2
REG
IN2
REG
L2
V
n2
R•R
2
I
Oshort2
I
Opeak2
4.5 V
≤
V
IN
≤
6.0 V
5 mA
≤
I
O
≤
0.5 A
10 Hz
≤
I
O
≤
100 kHz
f = 120 Hz, 4.5 V
≤
V
IN
≤
6.0 V
V
IN
= 6.0 V
V
IN
= 5.0 V
I
O
= 5 mA, 0°C
≤
T
J
≤
125°C
1.764
−
−
−
−
−
0.5
−
1.8
2
17
60
60
0.3
0.8
−
0.4
1.836
9
50
−
−
−
−
−
V
mV
mV
Symbol
V
O1
REG
IN1
REG
L1
V
n1
R•R
1
I
Oshort1
I
Opeak1
4.5 V
≤
V
IN
≤
6.0 V
5 mA
≤
I
O
≤
1 A
10 Hz
≤
I
O
≤
100 kHz
f = 120 Hz, 4.5 V
≤
V
IN
≤
6.0 V
V
IN
= 6.0 V
V
IN
= 5.0 V
I
O
= 5 mA, 0°C
≤
T
J
≤
125°C
Conditions
MIN.
3.234
−
−
−
−
−
1.0
−
TYP.
3.3
2
20
76
57
0.5
1.4
−
0.4
MAX.
3.366
9
66
−
−
−
−
−
Unit
V
mV
mV
µ
Vr.m.s.
dB
A
A
mV/°C
∆
V
O1
/
∆
T
µ
Vr.m.s.
dB
A
A
mV/°C
∆
V
O2
/
∆
T
Data Sheet G16444EJ1V0DS
3
µ
PC37M31,37M32
µ
PC37M32 (T
J
= 25°C, V
IN
= 5 V, I
O1
= 0.5 A, I
O2
= 0.3 A, unless otherwise specified)
Parameter
OUTPUT
1
(3.3 V)
Output Voltage 1
Line Regulation 1
Load Regulation 1
Output Noise Voltage 1
Ripple Rejection 1
Short Circuit Current 1
Peak Output Current 1
Temperature Coefficient of
Output Voltage 1
OUTPUT
2
(2.5 V)
Output Voltage 2
Line Regulation 2
Load Regulation 2
Output Noise Voltage 2
Ripple Rejection 2
Short Circuit Current 2
Peak Output Current 2
Temperature Coefficient of
Output Voltage 2
Total
Quiescent Current
Startup Quiescent Current
Dropout Voltage
(INPUT to OUTPUT
1
)
I
BIAS
I
BIAS (S)
V
DIF1
I
O1
= 0 A, I
O2
= 0 A
V
IN
= 2.4 V, I
O1
= 0 A, I
O2
= 0 A
I
O1
= 0.5 A
−
−
−
4
7
0.6
8
40
1.0
mA
mA
V
V
O2
REG
IN2
REG
L2
V
n2
R•R
2
I
Oshort2
I
Opeak2
4.5 V
≤
V
IN
≤
6.0 V
5 mA
≤
I
O
≤
0.5 A
10 Hz
≤
I
O
≤
100 kHz
f = 120 Hz, 4.5 V
≤
V
IN
≤
6.0 V
V
IN
= 6.0 V
V
IN
= 5.0 V
I
O
= 5 mA, 0°C
≤
T
J
≤
125°C
2.45
−
−
−
−
−
0.5
−
2.5
2
17
60
60
0.3
0.8
−
0.4
2.55
9
50
−
−
−
−
−
V
mV
mV
Symbol
V
O1
REG
IN1
REG
L1
V
n1
R•R
1
I
Oshort1
I
Opeak1
4.5 V
≤
V
IN
≤
6.0 V
5 mA
≤
I
O
≤
1 A
10 Hz
≤
I
O
≤
100 kHz
f = 120 Hz, 4.5 V
≤
V
IN
≤
6.0 V
V
IN
= 6.0 V
V
IN
= 5.0 V
I
O
= 5 mA, 0°C
≤
T
J
≤
125°C
Conditions
MIN.
3.234
−
−
−
−
−
1.0
−
TYP.
3.3
2
20
76
57
0.5
1.4
−
0.4
MAX.
3.366
9
66
−
−
−
−
−
Unit
V
mV
mV
µ
Vr.m.s.
dB
A
A
mV/°C
∆
V
O1
/
∆
T
µ
Vr.m.s.
dB
A
A
mV/°C
∆
V
O2
/
∆
T
4
Data Sheet G16444EJ1V0DS
µ
PC37M31,37M32
TYPICAL CHARACTERISTICS (Reference Values)
P
D
vs. T
A
V
O1
vs. V
IN
(
µ
PC37M31)
12
P
D
- Total Power Dissipation - W
5
h in
fini
te h
eat
V
O1
- OUTPUT
1
Output Voltage - V
10
8
6
4
2
0
0
25
Wit
T
J
= 25°C
4
I
O1
= 5 mA, I
O2
= 5 mA
I
O1
= 0.5 A, I
O2
= 0.3 A
sin
k
3
I
O1
= 1 A, I
O2
= 0 A
2
Without h
1
eatsink
0
50
75
100
125
150
T
A
- Operating Ambient Temperature -
°
C
0
1
2
3
4
5
6
7
8
9
10
V
IN
- Input Voltage - V
V
O1
vs. V
IN
(
µ
PC37M32)
V
O2
vs. V
IN
(
µ
PC37M31)
3
T
J
= 25°C
V
O2
- OUTPUT
2
Output Voltage - V
V
O1
- OUTPUT
1
Output Voltage - V
5
T
J
= 25°C
4
I
O1
= 5 mA, I
O2
= 5 mA
2
I
O1
= 5 mA, I
O2
= 5 mA
I
O1
= 0.5 A, I
O2
= 0.3 A
I
O1
= 0.5 A, I
O2
= 0.5 A
3
I
O1
= 0.5 A, I
O2
= 0.3 A
I
O1
= 1 A, I
O2
= 0 A
2
1
1
0
0
1
2
3
4
5
6
7
8
9
10
0
0
1
2
3
4
5
6
7
8
9
10
V
IN
- Input Voltage - V
V
O2
vs. V
IN
(
µ
PC37M32)
V
IN
- Input Voltage - V
I
BIAS
vs. V
IN
(
µ
PC37M31)
5
V
O2
- OUTPUT
2
Output Voltage - V
T
J
= 25°C
I
BIAS
- Quiescent Current - mA
100
T
J
= 25°C
4
80
I
O1
= 0.5 A, I
O2
= 0.3 A
I
O1
= 1 A, I
O2
= 0 A
3
I
O1
= 5 mA, I
O2
= 5 mA
I
O1
= 0.5 A, I
O2
= 0.3 A
I
O1
= 0.5 A, I
O2
= 0.5 A
60
2
40
1
20
I
O1
= I
O2
= 5 mA
0
0
1
2
3
4
5
6
7
8
9
10
0
0
1
2
3
4
5
6
7
8
9
10
V
IN
- Input Voltage - V
V
IN
- Input Voltage - V
Data Sheet G16444EJ1V0DS
5
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