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NJU7781 の電気的特性と機能

NJU7781のメーカーはNew Japan Radioです、この部品の機能は「(NJU7780 / NJU7781) LOW DROPOUT VOLTAGE REGULATOR」です。


製品の詳細 ( Datasheet PDF )

部品番号 NJU7781
部品説明 (NJU7780 / NJU7781) LOW DROPOUT VOLTAGE REGULATOR
メーカ New Japan Radio
ロゴ New Japan Radio ロゴ 




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NJU7781 Datasheet, NJU7781 PDF,ピン配置, 機能
www.DataSheet4U.com
NJU7780/81
LOW DROPOUT VOLTAGE REGULATOR
GENERAL DESCRIPTION
The NJU7780/81 is a low dropout voltage regulator with ON/OFF
Control.
Advanced CMOS technology achieves low quiescent current.
It is suitable for cellular phone and other portable items.
When the ON/OFF control is used, NJU7781 has high transition
response characteristics for shunt switch.
FEATURES
High Ripple Rejection
65dB typ. (f=400Hz, Vo=3V)
Low quiescent Current
Iq=20µA (Io=0mA, VCONT=VIN)
Output capacitor with 1.0µF ceramic capacitor
Output Current
Io(max)=300mA
High Precision Output
Vo±1.0%
Low Dropout Voltage
0.15V typ. (Io=150mA,Vo=3.0V)
ON/OFF Control
(Active High)
Shunt Switch
Only NJU7781
Internal Short Circuit Current Limit
Internal Thermal Overload Protection
CMOS technology
Package outline
SOT-89-5
PIN CONFIGURATION
524
123
1. CONTROL
2. GND
3. N.C.
4. VOUT
5. VIN
PACKAGE OUTLINE
NJU7780/81U1
EQUIVALENT CIRCUIT
VIN
CONTROL
Output
Control
Thermal
Protection
VOUT
VIN
CONTROL
Output
Control
Thermal
Protection
VOUT
GND
Current
Vref Limit
NJU7780
GND
Current
Vref Limit
NJU7781
Ver.2004-12-22
-1-

1 Page





NJU7781 pdf, ピン配列
TEST CIRCUIT
A IIN
V IN
VIN VOUT
CIN
0.1µF
NJU778*
A ICONT
V VCONT
CONTROL
GND
NJU7780/81
C0
1.0µF
VI OUT
V OUT
(ceramic)
TYPICAL APPLICATION
1 In the case where ON/OFF Control is not required:
VIN VIN VOUT
CIN
0.1µF
NJU778*
CONTROL
GND
Connect control terminal to VIN terminal
2 In use of ON/OFF CONTROL:
V IN
CIN
0.1µF
VIN VOUT
NJU778*
CONTROL
GND
State of control terminal:
“H”output is enabled.
“L” or “open” output is disabled.
C0
1.0µF
V OUT
C0
0.1µF
V OUT
Ver.2004-12-22
-3-


3Pages


NJU7781 電子部品, 半導体
NJU7780/81
ELECTRICAL CHARACTERISTICS
NJU7780_3.0V
ON/OFF Transient Response
7
Control Voltage
6
10
5
50
4
Output Voltage
3
-5
-10
2 -15
1 -20
@:Ta=25oC
0
VDD=4.0V
-25
Co=1.0µF(Ceramic)
-1
R =100
-30
012345
Time : t [ms]
NJU7780/81_3.0V
Input Transient Response
3.5
3.4
3.3
Input Voltage
3.2
3.1
3
Output Voltage
2.9 @:Ta=25oC
2.8
VDD=4.0V
Co =1.0 µF(Ceramic )
2.7 R =100
0 40
80 120
Time : t [ µs]
160
6
5
4
3
2
1
0
-1
-2
200
NJU7781_3.0V
ON/OFF Transient Response
7
Control Voltage
6
10
5
50
4
Output Voltage
3
-5
-10
2 -15
1 -20
@:Ta=25oC
0
VDD=4.0V
-25
Co =1.0µF(Ceramic)
-1
R =100
-30
012345
Time : t [ms]
3.5
3.4
3.3
3.2
3.1
3
2.9
2.8
2.7
0
NJU7780/81_3.0V
Load Transient Response
Output Current
@:Ta=25oC
VDD=4.0V
Co =1.0µF(Ceramic)
Io=50mA
150
100
50
0
Output Voltage
-50
-100
-150
-200
-250
28 56 84 112 140
Time : t [µs]
-6-
[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook are
described only to show representative usages
of the product and not intended for the
guarantee or permission of any right including
the industrial rights.
Ver.2004-12-22

6 Page



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共有リンク

Link :


部品番号部品説明メーカ
NJU7780

(NJU7780 / NJU7781) LOW DROPOUT VOLTAGE REGULATOR

New Japan Radio
New Japan Radio
NJU77806

Rail-to-Rail Output CMOS Operational Amplifier

New Japan Radio
New Japan Radio
NJU7781

(NJU7780 / NJU7781) LOW DROPOUT VOLTAGE REGULATOR

New Japan Radio
New Japan Radio


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