The µPC2900 series of low dropout voltage three terminal positive regulators is constructed with PNP output
transistor. The µPC2900 series feature the ability to source 1 A of output current with a low dropout voltage of typically
0.7 V.
µ
The power dissipation of the
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 (µPC2400A series).
FEATURES
• Output current in excess of 1.0 A
• Low dropout voltage V
• On-chip overcurrent and thermal protection circuit
• On-chip output transistor safe area protection circuit
PC2900 series can be drastically reduced compared with the conventional three
DIF = 0.7 V TYP. (at IO = 1 A)
PIN CONFIGURATION (Marking Side)
µ
PC2900HF Series: MP-45G
12
3
1: INPUT
2: GND
3: OUTPUT
µ
PC2900HB Series: MP-3
µ
PC2900T Series: MP-3Z
4
12
3
1: INPUT
2: GND
3: OUTPUT
4: GND
Fin
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.
ABSOLUTE MAXIMUM RATINGS (TA = 25 °C, Unless otherwise specified.)
µ
PC2900 Series
ParameterSymbol
Input VoltageVIN20V
Internal Power Dissipation
Operating Ambient TemperatureTA–30 to +85°C
Operating Junction TemperatureTJ–30 to +150°C
Storage TemperatureTstg–55 to +150°C
Thermal Resistance (Junction to Case)Rth (J-C)712.5°C/W
Thermal Resistance (Junction to Ambient)
Note
PT1510W
Rth (J-A)65125°C/W
µ
PC2900HF
Rating
µ
PC2900HB, µPC2900T
Note TC = 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
Unit
PC2900
INPUT
C
IN
µ
+
OUT
C
D
OUTPUT
2
CIN: More than 0.1 µF. Required if regulator is located an appreciable distance from power supply filter. You
must use to prevent from the parasitic oscillation.
OUT: More than 47
C
µ
F. You must use the Low-impedance-type (low ESR) capacitor.
D1: Need for VO > VIN
D2: Need a shottky barrier diode for VO < GND.
0 °C ≤ TJ ≤ 125 °C, 4.0 V ≤ VIN ≤ 16 V,
0 A ≤ IO≤ 500 mA
0 °C ≤ TJ≤ 125 °C, 0 A ≤ IO≤ 1 A
Line RegulationREGIN4.0 V ≤ VIN≤ 16 V1130mV
Load RegulationREGL0 A ≤ IO≤ 1 A930mV
Quiescent CurrentIBIASIO = 0 A1.94.0mA
0 °C ≤ TJ ≤ 125 °C, 4.3 V ≤ VIN ≤ 16 V,
0 A ≤ IO≤ 500 mA
0 °C ≤ TJ≤ 125 °C, 0 A ≤ IO≤ 1 A
Line RegulationREGIN4.3 V ≤ VIN≤ 16 V1233mV
Load RegulationREGL0 A ≤ IO≤ 1 A2333mV
Quiescent CurrentIBIASIO = 0 A2.04.0mA
0 °C ≤ TJ≤ 125 °C, 6 V ≤ VIN≤ 16 V,
0 A ≤ IO≤ 500 mA
0 °C ≤ TJ≤ 125 °C, 0 A ≤ IO≤ 1 A
Line RegulationREGIN6 V ≤ VIN≤ 16 V2350mV
Load RegulationREGL0 A ≤ IO≤ 1 A2850mV
Quiescent CurrentIBIASIO = 0 A2.24.0mA