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PDF NJU7790 Data sheet ( Hoja de datos )
| Número de pieza | NJU7790 | |
| Descripción | LOW DROPOUT VOLTAGE REGULATOR | |
| Fabricantes | New Japan Radio | |
| Logotipo |  |
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NJU7790
LOW DROPOUT VOLTAGE REGULATOR
GENERAL DESCRIPTION
The NJU7790 is a 500mA output low dropout voltage
regulator with ON/OFF control.
Advanced CMOS technology achieves high ripple rejection
and low quiescent current.
Small packaging and 2.2µF small decoupling capacitor make the
NJU7790 suitable for space conscious applications.
PACKAGE OUTLINE
NJU7790U1
FEATURES
High Ripple Rejection 65dB typ. (f=400Hz, Vo=3.0V Version)
Low quiescent Current Iq=30µA typ.(Io=0mA)
Output Current
Io(max.)=500mA
High Precision Output Vo±1.0%
Output capacitor with 2.2µF ceramic capacitor (Vo≥2.1V version)
Low Dropout Voltage 0.14V typ. (Io=300mA, Vo=3.0V Version)
ON/OFF Control
Internal Thermal Overload Protection
Internal Over Current Protection
CMOS Technology
Package Outline
SOT-89-5
PIN CONFIGURATION
524
123
1. CONTROL
2. GND
3. N.C.
4. VOUT
5. VIN
NJU7790U1
EQUIVALENT CIRCUIT
VIN
CONTROL
GND
Output
Control
Thermal
Protection
Current
Vref Limit
V OUT
Ver.2007-07-19
-1-
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
www.DataSheet.co.kr
TYPICAL CHARACTERISTICS
●DC CHARACTERISTICS
NJU7790_3.0V
Output Voltage vs. Input Voltage
3.2
@:Ta=25oC
Co =2.2 µF(Cer ami c)
CIN=1.0µF
3.1
Io=0A
3
2.9
Io=30mA
2.8 Io=100mA
2.7
2.7 2.8 2.9 3 3.1 3.2 3.3 3.4
Input Voltage : VIN(V)
NJU7790_3.0V
Ground Pin Current v.s. Output Current
200
150
100
50
0
0
@:Ta=25oC
VIN=4.0V
Co=2.2µF(Ceramic)
CIN=1.0µF
100 200 300 400 500 600 700 800
Output Current : IO(mA)
NJU7790_3.0V
3.5 Output Voltage vs. Control Voltage
3
2.5
2
1.5
1
0.5
0
0
@:Ta=25oC
VIN=4.0V
Co =2.2µF(Cer ami c)
Io=30mA
CIN=1.0µF
0.5 1 1.5 2 2.5 3 3.5
Control Voltage : Vcont(V)
Ver.2007-07-19
NJU7790
3.5
3
2.5
2
1.5
1
0.5
0
0
NJU7790_3.0V
Output Voltage vs. Output Current
@:Ta=25oC
VIN=4.0V
Co=2.2µF(Ceramic)
CIN=1.0µF
200
400
600
800
1000
1200
Output Current : Io(mA)
NJU7790_3.0V
1 Dropout Voltage vs. Output Current
0.8
0.6
0.4
0.2
0
0
@:Ta=25oC
Co =2.2 µF(Cerami c)
CIN=1.0µF
100 200 300 400 500 600 700 800
Output Current:Io(mA)
NJU7790_3.0V
0 Load Regulation vs. Output Current
-5
-10
-15
-20
0
@:Ta=25oC
VIN=4.0V
Co=2.2µF(Ceramic)
CIN=1.0µF
200 400 600
Output Current : lo(mA)
800
-5-
Datasheet pdf - http://www.DataSheet4U.net/
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet NJU7790.PDF ] | |
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