NJM2885 PDF даташит
Спецификация NJM2885 изготовлена «New Japan Radio» и имеет функцию, называемую «LOW DROPOUT VOLTAGE REGULATOR». |
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Детали детали
Номер произв | NJM2885 |
Описание | LOW DROPOUT VOLTAGE REGULATOR |
Производители | New Japan Radio |
логотип |
6 Pages
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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
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NJM2885
s ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
Input Voltage
VIN
Power Dissipation
PD
Operating Temperature
Storage Temperature
Topr
Tstg
(Ta=25°C)
RATINGS
UNIT
+14 V
8(Tc=25°C)
0.8(Ta≤25°C)
-40 ∼ +85
mW
°C
-40 ∼ +125
°C
s ELECTRICAL CHARACTERISTICS
(VIN=Vo+1V, CIN=0.33µF, Co=2.2µF: Vo≥2.7V (Co=4.7µF: Vo≤2.6V), Ta=25°C)
PARAMETER
SYMBOL
TEST CONDITION
MIN. TYP. MAX. UNIT
Output Voltage
Quiescent Current
Output Current
Line Regulation
Load Regulation
Dropout Voltage
Ripple Rejection
Average Temperature
Coefficient of Output Voltage
Vo Io=30mA
-1.0%
IQ Io=0mA
Io Vo-0.3V
−
500
∆Vo/∆VIN VIN=Vo+1V ∼ Vo+6.0V, Io=30mA
∆Vo/∆Io Io=0 ∼ 500mA
−
−
∆VI−O
RR
Io=300mA
ein=200mVrms,f=1kHz, Io=10mA
Vo=3.0V Version
−
−
∆Vo/∆Ta Ta=0∼85°C, Io=10mA
−
−
200
650
−
−
0.18
75
±50
+1.0% V
300 µA
- mA
0.10 %/V
0.03 %/mA
0.28 V
− dB
− ppm/°C
Output Noise Voltage
VNO
f=10Hz∼80kHz, Io=10mA,
Vo=3.0V Version
− 45 − µVrms
(*note 1): The above specification is a common specification for all output voltages.
Therefore, it may be different from the individual specification for a specific output voltage.
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NJM2885
s TEST CIRCUIT
A IIN
VIN VOUT
VIN
0.33µF
NJM2885
IOUT V VOUT
GND
s POWER DISSIPATION VS. AMBIENT TEMPERATURE
2.2µF
OR
4.7µF(Vo≤2.6V)
(ceramic)
NJU2885DL1
(Topr=-40~+85°C,Tj=125°C,PD=8W(TC=25°C),PD=0.8W(Ta≤25°C))
10
∞ Heat Sink
8
6 θHS=5°C/W
θHS=10°C/W
4 θHS=20°C/W
2
Without Heat Sink
0
-50
-25
0 25 50
Ambient Temperature Ta(°C)
75
100
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