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PDF 2908T Data sheet ( Hoja de datos )

Número de pieza 2908T
Descripción UPC2908T
Fabricantes NEC 
Logotipo NEC Logotipo



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No Preview Available ! 2908T Hoja de datos, Descripción, Manual

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

1 page




2908T pdf
µPC2900 Series
ELECTRICAL CHARACTERISTICS µPC2933 (TJ = 25 °C, VIN = 5 V, IO = 500 mA, CIN = 0.22 µF, COUT = 47 µF,
unless otherwise specified.)
Parameters
Output Voltage
Line Regulation
Load Regulation
Quiescent Current
Startup Quiescent Current
Quiescent Current Change
Output Noise Voltage
Ripple Rejection
Dropout Voltage
Short Circuit Current
Peak Output Current
Temperature Coefficient of
Output Voltage
Symbol
VO
REGIN
REGL
IBIAS
IBIAS (s)
IBIAS
Vn
R·R
VDIF
IO short
IO peak
VO/T
Conditions
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
4.3 V VIN 16 V
0 A IO 1 A
IO = 0 A
IO = 1 A
VIN = 3.1 V, IO = 0 A
VIN = 3.1 V, IO = 1 A
0 °C TJ 125 °C, 4.3 V VIN 16 V
10 Hz f 100 kHz
f = 120 Hz, 4.3 V VIN 16 V
0 °C TJ 125 °C, IO = 1 A
VIN = 4.5 V
VIN = 16 V
VIN = 4.5 V
VIN = 16 V
0 °C TJ 125 °C, IO = 5 mA
MIN.
3.17
3.14
48
1.2
1.0
1.3
TYP.
3.3
12
23
2.0
30
10
3.0
55
64
0.7
1.6
1.2
1.4
1.7
–0.4
MAX.
3.43
3.46
Unit
V
33 mV
33 mV
4.0 mA
60
30 mA
80
20 mA
µVr.m.s.
dB
1.0 V
3.0 A
3.0 A
2.8
mV/°C
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2908T arduino
µPC2900 Series
ELECTRICAL CHARACTERISTICS µPC2910 (TJ = 25 °C, VIN = 13 V, IO = 500 mA, CIN = 0.22 µF, COUT = 47 µF,
unless otherwise specified.)
Parameters
Output Voltage
Line Regulation
Load Regulation
Quiescent Current
Startup Quiescent Current
Quiescent Current Change
Output Noise Voltage
Ripple Rejection
Dropout Voltage
Short Circuit Current
Peak Output Current
Temperature Coefficient of
Output Voltage
Symbol
VO
REGIN
REGL
IBIAS
IBIAS (s)
IBIAS
Vn
R·R
VDIF
IO short
IO peak
VO/T
Conditions
0 °C TJ 125 °C, 11 V VIN 18 V,
0 A IO 500 mA
0 °C TJ 125 °C, 0 A IO 1 A
11 V VIN 18 V
0 A IO 1 A
IO = 0 A
IO = 1 A
VIN = 9.5 V, IO = 0 A
VIN = 9.5 V, IO = 1 A
0 °C TJ 125 °C, 11 V VIN 18 V
10 Hz f 100 kHz
f = 120 Hz, 11 V VIN 18 V
0 °C TJ 125 °C, IO = 1 A
VIN = 11.5 V
VIN = 18 V
VIN = 11.5 V
VIN = 18 V
0 °C TJ 125 °C, IO = 5 mA
MIN.
9.6
9.5
40
1.1
1.4
TYP.
10.0
MAX.
10.4
10.5
Unit
V
35 100 mV
33 100 mV
2.0 4.0 mA
25 60
10 30 mA
80
1.9 20 mA
180
µVr.m.s.
56 dB
0.7 1.0
V
1.7 A
1.0
1.6 3.0
A
2.0 3.0
2.1 mV/°C
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