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PDF NJM2885 Data sheet ( Hoja de datos )
| Número de pieza | NJM2885 | |
| Descripción | LOW DROPOUT VOLTAGE REGULATOR | |
| Fabricantes | New Japan Radio | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de NJM2885 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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NJM2885
LOW DROPOUT VOLTAGE REGULATOR
s GENERAL DESCRIPTION
The NJM2885 is low dropout voltage regulator designed for
portable application.
Advanced Bipolar technology achieves low noise, high ripple
rejection and low quiescent current.
s FEATURES
qHigh Ripple Rejection 75dB typ. (f=1kHz)
qOutput Noise Voltage Vno=45µVrms
qOutput capacitor with 2.2µF ceramic capacitor (Vo≥2.7V)
qOutput Current
Io(max.)=500mA
qHigh Precision Output Vo±1.0%
qLow Dropout Voltage 0.18V typ. (Io=300mA)
qInternal Short Circuit Current Limit
qInternal Thermal Overload Protection
qBipolar Technology
qPackage Outline
TO-252-3
s PACKAGE OUTLINE
NJM2885DL1
s PIN CONFIGURATION
2
PIN FUNCTION
1.VIN
2.GND
3.VOUT
123
NJM2885DL1
s EQUIVALENT CIRCUIT
VIN
Bandgap
Reference
Thermal
Protection
VOUT
GND
s OUTPUT VOLTAGE RANK LIST
Device Name
NJM2885DL1-18
VOUT
1.8V
Device Name
NJM2885DL1-30
NJM2885DL1-21 2.1V NJM2885DL1-33
NJM2885DL1-25 2.5V NJM2885DL1-35
NJM2885DL1-26 2.6V NJM2885DL1-38
NJM2885DL1-28 2.8V NJM2885DL1-05
VOUT
3.0V
3.3V
3.5V
3.8V
5.0V
1 page  
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s ELECTRICAL CHARACTERISTICS
NJM2885_3.0V
Ripple Rejection Ratio v.s. Frequency
100
Io=0mA
90
80
70
60 Io=30mA
Io=10mA
50
40
@:Ta=25oC
30
VIN=4.0V
ein=200mVrms
Co=2.2uF(Ceramic)
20
10 100 1k
Frequency : f (Hz)
10k
100k
0.4
0.35
0.3
0.25
0.2
0.15
0.1
0.05
0
-50
NJM2885_3.0V
Dropout Voltage vs. Temperature
@:Io=300mA
Co=2.2uF(Ceramic)
0 50 100
Temperature :Ta [oC]
150
NJM2885_3.0V
Output Voltage v.s. Temperature
4
3.5
3
2.5
2
1.5
1
0.5 @:VIN=4.0V
Io=30mA
CL=2.2uF(Ceramic)
0
-50 0 50 100
Temperature :Ta [oC]
150
200
NJM2885
NJM2885_3.0V
100 Ripple Rejection vs. Output Current
90
f=1kHz
80
70
f=10kHz
60
50
40
@:Ta=25oC
30
VIN=4.0V
ein=200mVrms
Co=2.2uF(Ceramic)
20
0.001
0.01
0.1
1
10
Output Current : Io(mA)
100
1000
NJM2885_3.0V
Quiescent Current v.s. Input Voltage
300
@:VIN=4V
Output is open.
Co=2.2uF(Ceramic)
250
200
150
100
50
0
-50
0
50 100 150
Temperature :Ta [oC]
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet NJM2885.PDF ] | |
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