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2908T PDF даташит

Спецификация 2908T изготовлена ​​​​«NEC» и имеет функцию, называемую «UPC2908T».

Детали детали

Номер произв 2908T
Описание UPC2908T
Производители NEC
логотип NEC логотип 

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2908T Даташит, Описание, Даташиты
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
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123
1: INPUT
2: GND
3: OUTPUT
4
123
1: INPUT
2: GND
3: OUTPUT
4: 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









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2908T Даташит, Описание, Даташиты
BLOCK DIAGRAM
µPC2900 Series
INPUT
Start-up
circuit
Reference
voltage
Error
amp.
Drive
circuit
Safe operating
area protection
Saturation
protection
OUTPUT
Thermal
shut down
ORDERING INFORMATION
Part Number
µPC2903HF
µPC2903HB
µPC2903T
µPC2933HF
µPC2933HB
µPC2933T
µPC2905HF
µPC2905HB
www.DataSµhPeeCt42U9.0c5omT
µPC2906HF
µPC2906HB
µPC2906T
µPC2907HF
µPC2907HB
µPC2907T
µPC2908HF
µPC2908HB
µPC2908T
µPC2909HF
µPC2909HB
µPC2909T
µPC2910HF
µPC2910HB
µPC2910T
µPC2912HF
µPC2912HB
µPC2912T
2
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)
Over current
protection
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
GND









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2908T Даташит, Описание, Даташиты
µPC2900 Series
ABSOLUTE MAXIMUM RATINGS (TA = 25 °C, Unless otherwise specified.)
Parameter
Symbol
Input Voltage
Internal Power DissipationNote
Operating Ambient Temperature
Operating Junction Temperature
Storage Temperature
Thermal Resistance (Junction to Case)
Thermal Resistance (Junction to Ambient)
VIN
PT
TA
TJ
Tstg
Rth (J-C)
Rth (J-A)
µPC2900HF
15
7
65
Rating
µPC2900HB, µPC2900T
20
10
–30 to +85
–30 to +150
–55 to +150
12.5
125
Unit
V
W
°C
°C
°C
°C/W
°C/W
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
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INPUT
CIN
µPC2900
COUT
+
OUTPUT
D2
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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