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What is UPC2926?

This electronic component, produced by the manufacturer "NEC", performs the same function as "THREE-TERMINAL LOW DROPOUT VOLTAGE REGULATOR".


UPC2926 Datasheet PDF - NEC

Part Number UPC2926
Description THREE-TERMINAL LOW DROPOUT VOLTAGE REGULATOR
Manufacturers NEC 
Logo NEC Logo 


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DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUIT
µPC2918,2925,2926
THREE-TERMINAL LOW DROPOUT VOLTAGE REGULATOR
# DESCRIPTION
The µPC2918, 2925 and 2926 are three-terminal low dropout voltage regulators with the 1-A output. The µPC2918
outputs 1.8 V, the µPC2925 outputs 2.5 V and the µPC2926 outputs 2.6 V. Since these regulators use a PNP
transistor for the output stage, they achieve a low dropout voltage of 0.7 V TYP. at IO = 1 A and minimize the power
dissipation of the IC. As a result, these regulators can be used to realize sets with lower voltage and power
dissipation.
FEATURES
Output current capacity: 1 A
Low dropout voltage (VDIF = 0.5 V MAX. (at IO = 0.5 A))
Output voltage accuracy: ±2%
On-chip saturation protector rising edge of input voltage
(at low input voltage)
On-chip overcurrent limiter and thermal protection
On-chip output transistor safe operation area protection
PIN CONFIGURATION (Marking Side)
4
123
1: INPUT
2: GND
3: OUTPUT
4: GND (Fin)
BLOCK DIAGRAM
INPUT
Error
Amp.
Safe operation
area protection
OUTPUT
Overcurrent
protection
GND
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for
availability and additional information.
Document No. G14983EJ3V0DS00 (3rd edition)
Date Published May 2001 NS CP(K)
Printed in Japan
The mark # shows major revised points.
©
2000,2001

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UPC2926 equivalent
µPC2918, 2925, 2926
µPC2925 (TJ = 25°C, VIN = 3.5 V, IO = 0.5 A, CIN = 0.1 µF, COUT = 10 µF, unless otherwise specified)
Parameter
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
IOshort
IOpeak
VO /T
Conditions
3.5 V VIN 5 V, 0 A IO 1 A,
0°C TJ 125°C
3.5 V VIN 16 V
0 A IO 1 A
IO = 0 A
IO = 1 A
VIN = 2.4 V, IO = 0 A
VIN = 3.0 V, IO = 1 A
3.5 V VIN 16 V, 0°C TJ 125°C
10 Hz f 100 kHz
f = 120 Hz, 3.5 V VIN 9 V
IO = 0.5 A
IO = 1 A, 0°C TJ 125°C
VIN = 3.5 V
VIN = 16 V
VIN = 3.5 V
VIN = 16 V
IO = 5 mA, 0°C TJ 125°C
MIN.
2.45
(2.375)
TYP.
2.5
MAX.
2.55
(2.575)
Unit
V
V
6 25 mV
7 30 mV
2 4 mA
20 60 mA
10 30 mA
80 mA
2.9 20 mA
40 µ Vr.m.s.
45 60
dB
0.25 0.5
V
0.7 V
1.2 1.7 3.0
A
1.2 A
1.0 1.5 3.0
A
1.1 A
0.5
mV/°C
Remark Values in parentheses have been measured during product design and are provided as reference values.
# µPC2926 (TJ = 25°C, VIN = 3.6 V, IO = 0.5 A, CIN = 0.1 µF, COUT = 10 µF, unless otherwise specified)
Parameter
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
IOshort
IOpeak
VO /T
Conditions
3.6 V VIN 5 V, 0 A IO 1 A,
0°C TJ 125°C
3.6 V VIN 16 V
0 A IO 1 A
IO = 0 A
IO = 1 A
VIN = 2.4 V, IO = 0 A
VIN = 3.0 V, IO = 1 A
3.6 V VIN 16 V, 0°C TJ 125°C
10 Hz f 100 kHz
f = 120 Hz, 3.6 V VIN 9 V
IO = 0.5 A
IO = 1 A, 0°C TJ 125°C
VIN = 3.6 V
VIN = 16 V
VIN = 3. 6 V
VIN = 16 V
IO = 5 mA, 0°C TJ 125°C
MIN.
2.548
(2.470)
TYP.
2.6
MAX.
2.652
(2.678)
Unit
V
V
6 25 mV
7 30 mV
2 4 mA
20 60 mA
10 30 mA
80 mA
2.9 20 mA
40 µ Vr.m.s.
45 60
dB
0.25 0.5
V
0.7 V
1.2 1.7 3.0
A
1.2 A
1.0 1.5 3.0
A
1.1 A
0.5
mV/°C
Remark Values in parentheses have been measured during product design and are provided as reference values.
Data Sheet G14983EJ3V0DS
5


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