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Part: UPC2907T
Category:
Power Management
Description: Three Terminal Low Dropout Voltage Regulator
Company: NEC Electronics Inc.
Datasheet: Download UPC2907T datasheet File size : 7 kB
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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 Star t-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
µP C 2 9 0 3 H F µP C 2 9 0 3 H B µP C 2 9 0 3 T µP C 2 9 3 3 H F µP C 2 9 3 3 H B µP C 2 9 3 3 T µP C 2 9 0 5 H F µP C 2 9 0 5 H B µP C 2 9 0 5 T µP C 2 9 0 6 H F µP C 2 9 0 6 H B µP C 2 9 0 6 T µP C 2 9 0 7 H F µP C 2 9 0 7 H B µP C 2 9 0 7 T µP C 2 9 0 8 H F µP C 2 9 0 8 H B µP C 2 9 0 8 T µP C 2 9 0 9 H F µP C 2 9 0 9 H B µP C 2 9 0 9 T µP C 2 9 1 0 H F µP C 2 9 1 0 H B µP C 2 9 1 0 T µP C 2 9 1 2 H F µP C 2 9 1 2 H B µP C 2 9 1 2 T
2
µPC2900 Series
ABSOLUTE MAXIMUM RATINGS (TA = 25 °C, Unless otherwise specified.)
Rating Parameter Input Voltage Internal Power DissipationNote Symbol VI N PT TA TJ T stg Rth (J-C) Rth (J-A) 7 65 15 30 to +85 30 to +150 55 to +150 12.5 125
µP C 2 9 0 0 H F
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 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
D1
INPUT
µ PC2900
OUTPUT + D2
CIN
COUT
CIN COUT D1 D2
: 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. : More than 47 µF. You must use the Low-impedance-type (low ESR) capacitor. : Need for VO > VIN : Need a shottky barrier diode for VO < GND.
3
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