DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUIT
PC24A00 Series
THREE TERMINAL LOW DROPOUT VOLTAGE REGULATOR
Document No. G14632EJ3V0DS00 (3rd edition)
Date Published February 2000 N CP(K)
Printed in Japan
DATA SHEET
The
PC24A00 Series is a low dropout voltage three terminal regulator that has realized a minimum voltage
differential between the I/O of no more than 1 V when the output current is 2 A through the employment of a PNP
transistor at the output stage.
Due to its ability to achieve a greater reduction in the power loss compared with conventional three-terminal
regulators, the
PC24A00 Series is ideal for use as the secondary side smoothing circuit of a power supply.
FEATURES
PIN CONFIGURATION (Marking Side)
Output current in excess of 2.0 A
High accuracy of output voltage
V
O
=
2% MAX. (T
J
= 25
C, I
O
= 1 A)
Low dropout voltage
V
DIF
= 1 V MAX. (I
O
= 2 A)
On-chip thermal shut down circuit, over-current protection
circuit and safe operating area protection circuit
3-pin plastic SIP (MP-45G)
PC24A05HF, 24A12HF, 24A15HF
1
2
1: INPUT
2: GND
3: OUTPUT
3
ORDERING INFORMATION
Part Number
Package
Output Voltage
PC24A05HF
3-pin plastic SIP (MP-45G) (isolated TO-220)
5 V
PC24A12HF
3-pin plastic SIP (MP-45G) (isolated TO-220)
12 V
PC24A15HF
3-pin plastic SIP (MP-45G) (isolated TO-220)
15 V
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.
2000
Data Sheet G14632EJ3V0DS00
2
PC24A00 Series
BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS (T
A
= 25
C, Unless Otherwise Specified)
Parameter
Symbol
Rating
Unit
Input voltage
V
IN
-
0.3 to
+
36
V
Total power consumption
P
T
20
Note
W
Operating ambient temperature
T
A
-
20 to
+
85
C
Storage temperature
T
stg
-
55 to
+
150
C
Operating junction temperature
T
J
-
20 to
+
150
C
Thermal resistance (junction to case)
R
th (J
-
C)
5
C/W
Thermal resistance (junction to ambient)
R
th (J
-
A)
65
C/W
Note Internally limited. When operating junction temperature rise up to 150
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.
Start-up
circuit
Reference
voltage
Thermal
shut down
Error
amp.
Drive
circuit
Safe operating
area protection
OUTPUT
GND
INPUT
Over-current
protection
Data Sheet G14632EJ3V0DS00
3
PC24A00 Series
TYPICAL CONNECTION
C
IN
:
0.1 to 0.47
F. Be sure to connect to prevent abnormal oscillation. When using capacitors, film capacitors with
excellent voltage and temperature characteristics are recommended. Be aware that some monolithic ceramic
capacitors have inferior temperature and voltage characteristics. When using a monolithic ceramic capacitor,
C
IN
requires a capacitor that can secure this capacity within the voltage and temperature range used.
C
OUT
: 10
F or higher. Be sure to connect to prevent oscillation and to improve transient load stabilization.
Remark Connect C
IN
and C
OUT
as close as possible to the IC pins (within 2 cm).
D
1
:
V
O
> V
IN
required
D
2
:
Shottky barrier diode required for when V
O
< GND.
RECOMMENDED OPERATING CONDITIONS
Parameter
Symbol
Condition
MIN.
TYP.
MAX.
Unit
Input voltage
V
IN
PC24A05HF
6
9
15
V
PC24A12HF
13
18
22
V
PC24A15HF
16
22
25
V
Output current
I
O
All
0
2
A
Operating junction temperature
T
J
All
-
20
+
125
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.
+
D
2
D
1
C
IN
C
OUT
INPUT
OUTPUT
PC24A00
Data Sheet G14632EJ3V0DS00
4
PC24A00 Series
ELECTRICAL CHARACTERISTICS
PC24A05 (T
J
= 25
C, V
IN
= 9 V, I
O
= 1 A, Unless Otherwise Specified)
Parameter
Symbol
Condition
MIN.
TYP.
MAX.
Unit
4.9
5.0
5.1
V
Output voltage
V
O
0
C
T
J
125
C,
6 V
V
IN
15 V, 5 mA
I
O
2 A
4.85
5.15
V
Line regulation
REG
IN
6 V
V
IN
15 V
6
50
mV
Load regulation
REG
L
5 mA
I
O
2 A
3
50
mV
I
O
= 0 A
3
5.0
mA
Quiescent current
I
BIAS
I
O
= 2 A
15
30
mA
Quiescent current change
I
BIAS
6 V
V
IN
15 V, I
O
= 2 A
20
mA
Output noise voltage
V
n
10 Hz
f
100 kHz
150
V
r.m.s.
Ripple rejection
R
R
f = 120 Hz, 6.5 V
V
IN
16.5 V
50
60
dB
Dropout voltage
V
DIF
0
C
T
J
125
C, I
O
= 2 A
1.0
V
Short circuit current
I
O short
V
IN
= 15V
1.3
A
Peak output current
I
O peak
V
IN
= 9 V
2.8
3.5
4.2
A
Temperature coefficient of
output voltage
V
O
/
T
0
C
T
J
125
C, I
O
= 5 mA
0.5
mV/
C
PC24A12 (T
J
= 25
C, V
IN
= 18 V, I
O
= 1 A, Unless Otherwise Specified)
Parameter
Symbol
Condition
MIN.
TYP.
MAX.
Unit
11.75
12.0
12.25
V
Output voltage
V
O
0
C
T
J
125
C,
13 V
V
IN
22 V, 5 mA
I
O
2 A
11.65
12.35
V
Line regulation
REG
IN
13 V
V
IN
22 V
12
100
mV
Load regulation
REG
L
5 mA
I
O
2 A
6
100
mV
I
O
= 0 A
3
5.0
mA
Quiescent current
I
BIAS
I
O
= 2 A
15
30
mA
Quiescent current change
I
BIAS
13 V
V
IN
22 V, I
O
= 2 A
20
mA
Output noise voltage
V
n
10 Hz
f
100 kHz
220
V
r.m.s.
Ripple rejection
R
R
f = 120 Hz, 13.5 V
V
IN
23.5 V
43
50
dB
Dropout voltage
V
DIF
0
C
T
J
125
C, I
O
= 2 A
1.0
V
Short circuit current
I
O short
V
IN
= 15 V
1.4
A
Peak output current
I
O peak
V
IN
= 18 V
2.8
3.5
4.2
A
Temperature coefficient of
output voltage
V
O
/
T
0
C
T
J
125
C, I
O
= 5 mA
1.0
mV/
C
Data Sheet G14632EJ3V0DS00
5
PC24A00 Series
PC24A15 (T
J
= 25
C, V
IN
= 22 V, I
O
= 1 A, Unless Otherwise Specified)
Parameter
Symbol
Condition
MIN.
TYP.
MAX.
Unit
14.7
15.0
15.3
V
Output voltage
V
O
0
C
T
J
125
C,
16 V
V
IN
25 V, 5 mA
I
O
2 A
14.55
15.45
V
Line regulation
REG
IN
17 V
V
IN
25 V
18
150
mV
Load regulation
REG
L
5 mA
I
O
2 A
10
150
mV
I
O
= 0 A
3
5.0
mA
Quiescent current
I
BIAS
I
O
= 2 A
15
30
mA
Quiescent current change
I
BIAS
17 V
V
IN
25 V, I
O
= 2 A
20
mA
Output noise voltage
V
n
10 Hz
f
100 kHz
260
V
r.m.s.
Ripple rejection
R
R
f = 120 Hz, 17 V
V
IN
27 V
40
48
dB
Dropout voltage
V
DIF
0
C
T
J
125
C, I
O
= 2 A
1.0
V
Short circuit current
I
O short
V
IN
= 16 V
1.4
A
Peak output current
I
O peak
V
IN
= 22 V
2.8
3.5
4.2
A
Temperature coefficient of
output voltage
V
O
/
T
0
C
T
J
125
C, I
O
= 5 mA
1.6
mV/
C
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