BIPOLAR ANALOG INTEGRATED CIRCUIT
PC2900 Series
THREE TERMINAL LOW DROPOUT VOLTAGE REGULATOR
The
PC2900 series of low dropout voltage three terminal positive regulators is constructed with PNP output
transistor. The
PC2900 series feature the ability to source 1 A of output current with a low dropout voltage of typically
0.7 V.
The power dissipation of the
PC2900 series can be drastically reduced compared with the conventional three
terminal positive voltage regulators that is constructed with NPN output transistor. Also, this series corresponds to
the low voltage output (3 V, 3.3 V) which is not in the conventional low dropout regulators (
PC2400A series).
FEATURES
Output current in excess of 1.0 A
Low dropout voltage V
DIF
= 0.7 V TYP. (at I
O
= 1 A)
On-chip overcurrent and thermal protection circuit
On-chip output transistor safe area protection circuit
PIN CONFIGURATION (Marking Side)
PC2900HF Series: MP-45G
PC2900HB Series: MP-3
PC2900T Series: MP-3Z
1
2
1: INPUT
2: GND
3: OUTPUT
3
1
2
1: INPUT
2: GND
3: OUTPUT
4: GND (Fin)
3
4
Document No. G10026EJ3V0DS00 (3rd edition)
Date Published July 1998 N CP(K)
Printed in Japan
The information in this document is subject to change without notice.
The mark shows major revised points.
1997
DATA SHEET
PC2900 Series
2
BLOCK DIAGRAM
ORDERING INFORMATION
Part Number
Package
Output Voltage
PC2903HF
MP-45G (Isolated TO-220)
3.0 V
PC2903HB
MP-3 (SC-64)
3.0 V
PC2903T
MP-3Z (SC-63)
3.0 V
PC2933HF
MP-45G (Isolated TO-220)
3.3 V
PC2933HB
MP-3 (SC-64)
3.3 V
PC2933T
MP-3Z (SC-63)
3.3 V
PC2905HF
MP-45G (Isolated TO-220)
5.0 V
PC2905HB
MP-3 (SC-64)
5.0 V
PC2905T
MP-3Z (SC-63)
5.0 V
PC2906HF
MP-45G (Isolated TO-220)
6.0 V
PC2906HB
MP-3 (SC-64)
6.0 V
PC2906T
MP-3Z (SC-63)
6.0 V
PC2907HF
MP-45G (Isolated TO-220)
7.0 V
PC2907HB
MP-3 (SC-64)
7.0 V
PC2907T
MP-3Z (SC-63)
7.0 V
PC2908HF
MP-45G (Isolated TO-220)
8.0 V
PC2908HB
MP-3 (SC-64)
8.0 V
PC2908T
MP-3Z (SC-63)
8.0 V
PC2909HF
MP-45G (Isolated TO-220)
9.0 V
PC2909HB
MP-3 (SC-64)
9.0 V
PC2909T
MP-3Z (SC-63)
9.0 V
PC2910HF
MP-45G (Isolated TO-220)
10.0 V
PC2910HB
MP-3 (SC-64)
10.0 V
PC2910T
MP3Z (SC-63)
10.0 V
PC2912HF
MP-45G (Isolated TO-220)
12.0 V
PC2912HB
MP-3 (SC-64)
12.0 V
PC2912T
MP-3Z (SC-63)
12.0 V
Start-up
circuit
Reference
voltage
Thermal
shut down
Error
amp.
Drive
circuit
Saturation
protection
Safe operating
area protection
OUTPUT
GND
INPUT
Over current
protection
PC2900 Series
3
ABSOLUTE MAXIMUM RATINGS (T
A
= 25
C, Unless otherwise specified.)
Parameter
Symbol
Rating
Unit
PC2900HF
PC2900HB,
PC2900T
Input Voltage
V
IN
20
V
Internal Power Dissipation
Note
P
T
15
10
W
Operating Ambient Temperature
T
A
30 to +85
C
Operating Junction Temperature
T
J
30 to +150
C
Storage Temperature
T
stg
55 to +150
C
Thermal Resistance (Junction to Case)
R
th (J-C)
7
12.5
C/W
Thermal Resistance (Junction to Ambient)
R
th (J-A)
65
125
C/W
Note T
C
= 25
C, Internally limited
When operating junction temperature rises up to 150
C, the internal circuit shutdown output voltage.
Caution Exposure to Absolute Maximum Ratings for extended periods may affect device reliability;
exceeding the ratings could cause permanent damage. The parameters apply independently. The
device should be operated within the limits specified under DC and AC Characteristics.
TYPICAL CONNECTION
D
1
PC2900
INPUT
C
OUT
C
IN
D
2
+
OUTPUT
C
IN
: More than 0.1
F. Required if regulator is located an appreciable distance from power supply filter. You
must use to prevent from the parasitic oscillation.
C
OUT
: More than 47
F. You must use the Low-impedance-type (low ESR) capacitor.
D
1
: Need for V
O
> V
IN
D
2
: Need a shottky barrier diode for V
O
< GND.
PC2900 Series
4
RECOMMENDED OPERATING CONDITIONS
Parameter
Symbol
Type Number
MIN.
TYP.
MAX.
Unit
Input Voltage
V
IN
PC2903
4.0
16
V
PC2933
4.3
16
PC2905
6
16
PC2906
7
16
PC2907
8
16
PC2908
9
18
PC2909
10
18
PC2910
11
18
PC2912
13
18
Output Current
I
O
all
0
1.0
A
Operating Ambient Temperature
T
A
all
30
+85
C
Operating Junction Temperature
T
J
all
30
+125
C
ELECTRICAL CHARACTERISTICS
PC2903 (T
J
= 25
C, V
IN
= 5 V, I
O
= 500 mA, C
IN
= 0.22
F, C
OUT
= 47
F,
unless otherwise specified.)
Parameters
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
Output Voltage
V
O
2.88
3.0
3.12
V
0
C
T
J
125
C, 4.0 V
V
IN
16 V,
2.85
3.15
0 A
I
O
500 mA
0
C
T
J
125
C, 0 A
I
O
1 A
Line Regulation
REG
IN
4.0 V
V
IN
16 V
11
30
mV
Load Regulation
REG
L
0 A
I
O
1 A
9
30
mV
Quiescent Current
I
BIAS
I
O
= 0 A
1.9
4.0
mA
I
O
= 1 A
23
60
Startup Quiescent Current
I
BIAS (s)
V
IN
= 2.95 V, I
O
= 0 A
12
30
mA
V
IN
= 2.95 V, I
O
= 1 A
80
Quiescent Current Change
I
BIAS
0
C
T
J
125
C, 4.0 V
V
IN
16 V
3.2
20
mA
Output Noise Voltage
V
n
10 Hz
f
100 kHz
52
V
r.m.s.
Ripple Rejection
RR
f = 120 Hz, 4.0 V
V
IN
16 V
48
63
dB
Dropout Voltage
V
DIF
0
C
T
J
125
C, I
O
= 1 A
0.7
1.0
V
Short Circuit Current
I
O short
V
IN
= 4.5 V
1.2
1.7
3.0
A
V
IN
= 16 V
1.2
Peak Output Current
I
O peak
V
IN
= 4.5 V
1.0
1.5
3.0
A
V
IN
= 16 V
1.3
1.7
2.8
Temperature Coefficient of
V
O
/
T
0
C
T
J
125
C, I
O
= 5 mA
0.5
mV/
C
Output Voltage
PC2900 Series
5
ELECTRICAL CHARACTERISTICS
PC2933 (T
J
= 25
C, V
IN
= 5 V, I
O
= 500 mA, C
IN
= 0.22
F, C
OUT
= 47
F,
unless otherwise specified.)
Parameters
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
Output Voltage
V
O
3.17
3.3
3.43
V
0
C
T
J
125
C, 4.3 V
V
IN
16 V,
3.14
3.46
0 A
I
O
500 mA
0
C
T
J
125
C, 0 A
I
O
1 A
Line Regulation
REG
IN
4.3 V
V
IN
16 V
12
33
mV
Load Regulation
REG
L
0 A
I
O
1 A
23
33
mV
Quiescent Current
I
BIAS
I
O
= 0 A
2.0
4.0
mA
I
O
= 1 A
30
60
Startup Quiescent Current
I
BIAS (s)
V
IN
= 3.1 V, I
O
= 0 A
10
30
mA
V
IN
= 3.1 V, I
O
= 1 A
80
Quiescent Current Change
I
BIAS
0
C
T
J
125
C, 4.3 V
V
IN
16 V
3.0
20
mA
Output Noise Voltage
V
n
10 Hz
f
100 kHz
55
V
r.m.s.
Ripple Rejection
RR
f = 120 Hz, 4.3 V
V
IN
16 V
48
64
dB
Dropout Voltage
V
DIF
0
C
T
J
125
C, I
O
= 1 A
0.7
1.0
V
Short Circuit Current
I
O short
V
IN
= 4.5 V
1.2
1.6
3.0
A
V
IN
= 16 V
1.2
Peak Output Current
I
O peak
V
IN
= 4.5 V
1.0
1.4
3.0
A
V
IN
= 16 V
1.3
1.7
2.8
Temperature Coefficient of
V
O
/
T
0
C
T
J
125
C, I
O
= 5 mA
0.4
mV/
C
Output Voltage
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