Document
DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUIT
µPC2900 Series
THREE TERMINAL LOW DROPOUT VOLTAGE REGULATOR
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. The power dissipation of the µPC2900 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 (µPC2400A series).
FEATURES
• Output current in excess of 1.0 A • Low dropout voltage VDIF = 0.7 V TYP. (at IO = 1 A) • On-chip overcurrent and thermal protection circuit • On-chip output transistor safe area protection circuit
PIN CONFIGURATION (Marking Side)
µPC2900HF Series: MP-45G µPC2900HB Series: MP-3 µPC2900T Series: MP-3Z
4
1
2
3 1: INPUT 2: GND 3: OUTPUT
1
2
3
1: 2: 3: 4:
INPUT GND OUTPUT GND (Fin)
The information in this document is subject to change without notice. Document No. G10026EJ3V0DS00 (3rd edition) Date Published July 1998 N CP(K) Printed in Japan
The mark
shows major revised points.
©
1997
µPC2900 Series
BLOCK DIAGRAM
INPUT
Safe operating area protection Start-up circuit Reference voltage
Error amp.
Drive circuit
Saturation protection OUTPUT
Thermal shut down Over current protection GND
ORDERING INFORMATION
Part Number Package MP-45G (Isolated TO-220) MP-3 (SC-64) MP-3Z (SC-63) MP-45G (Isolated TO-220) MP-3 (SC-64) MP-3Z (SC-63) MP-45G (Isolated TO-220) MP-3 (SC-64) MP-3Z (SC-63) MP-45G (Isolated TO-220) MP-3 (SC-64) MP-3Z (SC-63) MP-45G (Isolated TO-220) MP-3 (SC-64) MP-3Z (SC-63) MP-45G (Isolated TO-220) MP-3 (SC-64) MP-3Z (SC-63) MP-45G (Isolated TO-220) MP-3 (SC-64) MP-3Z (SC-63) MP-45G (Isolated TO-220) MP-3 (SC-64) MP3Z (SC-63) MP-45G (Isolated TO-220) MP-3 (SC-64) MP-3Z (SC-63) Output Voltage 3.0 V 3.0 V 3.0 V 3.3 V 3.3 V 3.3 V 5.0 V 5.0 V 5.0 V 6.0 V 6.0 V 6.0 V 7.0 V 7.0 V 7.0 V 8.0 V 8.0 V 8.0 V 9.0 V 9.0 V 9.0 V 10.0 V 10.0 V 10.0 V 12.0 V 12.0 V 12.0 V
µPC2903HF µPC2903HB µPC2903T µPC2933HF µPC2933HB µPC2933T µPC2905HF µPC2905HB µPC2905T µPC2906HF µPC2906HB µPC2906T µPC2907HF µPC2907HB µPC2907T µPC2908HF µPC2908HB µPC2908T µPC2909HF µPC2909HB µPC2909T µPC2910HF µPC2910HB µPC2910T µPC2912HF µPC2912HB µPC2912T
2
µPC2900 Series
ABSOLUTE MAXIMUM RATINGS (TA = 25 °C, Unless otherwise specified.)
Rating Parameter Input Voltage Internal Power DissipationNote Symbol VIN PT TA TJ Tstg Rth (J-C) Rth (J-A) 7 65 15 –30 to +85 –30 to +150 –55 to +150 12.5 125
µPC2900HF
20
µPC2900HB, µPC2900T
Unit V
10
W °C °C °C °C/W °C/W
Operating Ambient Temperature Operating Junction Temperature Storage Temperature Thermal Resistance (Junction to Case) Thermal Resistance (Junction to Ambient)
Note TC = 25 °C, Internally limited When operating junction temper.