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Número de pieza | NJU7777 | |
Descripción | LOW DROPOUT VOLTAGE REGULATOR | |
Fabricantes | JRC | |
Logotipo | ||
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NJU7777
LOW DROPOUT VOLTAGE REGULATOR
GENERAL DESCRIPTION
The NJU7777 is a 150mA output low dropout voltage
regulator with ON/OFF control.
Advanced CMOS technology achieves high ripple rejection
and low quiescent current.
Small packaging and 1µF small decoupling capacitor make the
NJU7777 suitable for space conscious applications.
PACKAGE OUTLINE
NJU7777F4
FEATURES
High Ripple Rejection
65dB typ. (f=1kHz,Vo=3.0V version)
Low quiescent Current Iq=18µA (Io=0mA)
Output Current
Io(max.)=150mA
High Precision Output
Vo±1.0%
Output capacitor with 1.0µF ceramic capacitor (Vo≥2.1V version)
Low Dropout Voltage
0.13V typ. (Io=100mA,Vo=3.0V)
ON/OFF Control
Internal Short Circuit Current Limit
Internal Thermal Overload Protection
CMOS Technology
Package Outline
SC-82AB
PIN CONFIGURATION
4 3 1.CONTROL
2.GND
3.VOUT
1 2 4.VIN
NJU7777F4
EQUIVALENT CIRCUIT
VDD
CONTROL
Output
Control
Thermal
Protection
V OUT
Current
Vref Limit
VSS
Ver.2006-06-13
-1-
1 page www.DataSheet4U.com
TYPICAL CHARACTERISTICS
NJU7777_3.0V
Output Voltage vs. Input Voltage
3.2
@:Ta=25oC
Co =1 .0 µF(Ceramic)
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)
NJU7777_3.0V
Ground Pin Current v.s. Output Current
100
@:Ta=25oC
V IN=4 .0V
Co=1.0µF(Ceramic)
80
60
40
20
0
0 50 100 150
Output Current : IO(mA)
4
3.5
3
2.5
2
1.5
1
0.5
0
0
NJU7777_3.0V
Output Voltage vs. Control Voltage
@:Ta=25oC
V IN=4.0V
Co=1.0µF(Ceramic)
0.5 1 1.5 2 2.5
Control Voltage : Vcont(V)
3
Ver.2006-06-13
NJU7777
4
3.5
3
2.5
2
1.5
1
0.5
0
0
NJU7777_3.0V
Output Voltage vs. Output Current
@:Ta=25oC
Co=1.0µF(Ceramic)
VIN=4V
50 100 150 200 250
Output Current : Io(mA)
300
NJU7777_3.0V
Dropout Voltage vs. Output Current
0.4
@:Ta=25oC
0.35 Co=1.0µF(Ceramic)
0.3
0.25
0.2
0.15
0.1
0.05
0
0 50 100
Output Current:Io(mA)
150
NJU7777_3.0V
Load Regulation vs. Output Current
0
-5
-10
-15
-20
-25
-30
-35
@:Ta=25oC
V IN=4.0V
Co=1.0 µF(Ceramic)
-40
0
50 100
Output Current : Io(mA)
150
-5-
5 Page |
Páginas | Total 9 Páginas | |
PDF Descargar | [ Datasheet NJU7777.PDF ] |
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