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PDF NJM2894 Data sheet ( Hoja de datos )
| Número de pieza | NJM2894 | |
| Descripción | 3OUTPUT LOW DROPOUT VOLTAGE REGULATOR | |
| Fabricantes | JRC | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de NJM2894 (archivo pdf) en la parte inferior de esta página. Total 11 Páginas | ||
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NJM2894
3OUTPUT LOW DROPOUT VOLTAGE REGULATOR
! GENERAL DESCRIPTION
The NJM2894 is a 3ch low dropout voltage regulator with
ON/OFF control in TVSP-8 package.
It is suitable for camcorder, IC decoder, camera and other
portable items.
! PACKAGE OUTLINE
NJM2894RB1
! FEATURES
" High Ripple Rejection 75dB typ. (f=1kHz,Vo=3V Version)
" Output Noise Voltage Vno=45µVrms typ.
" Output capacitor with 1.0uF ceramic capacitor (Vo≥2.7V)
" Output Current
Io(max.)=ch1=150mA ch2,ch3=80mA
" High Precision Output Vo±1.0%
" Low Dropout Voltage 0.10V typ. (Io=60mA)
" ON/OFF Control
(Active High)
" Internal Short Circuit Current Limit
" Internal Thermal Overload Protection
" Bipolar Technology
" Package Outline
TVSP-8
! PIN CONFIGURATION
8 765
PIN FUNCTION
1.VOUT1
2.VOUT2
3.VOUT3
4.GND
5.CONTROL3
6.CONTROL2
7.CONTROL1
8.VIN
1 234
NJM2894RB1-xxx
1 page  
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! TYPICAL APPLICATION
1 In the case where ON/OFF Control is not required:
VIN
0.1µF
VIN VOUT1
NJM2894
R1
(0~300kΩ)
CONTROL1 VOUT2
R2
(0~300kΩ)
R3
(0~300kΩ)
CONTROL2
VOUT3
CONTROL3
GND
1.0µF*4
1.0µF*4
1.0µF*4
NJM2894
VOUT1
VOUT2
VOUT3
*4 Vo≤2.6V version: Co=2.2µF
Connect control terminal to VIN terminal
5 Page 
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! ELECTRICAL CHARACTERISTICS
NJM2894_3V
ON/OFF Transient Response
7
6
Control Voltage
5
4
Output Voltage
3
2
1 @:VIN=4V
Co=1µF(Ceramic)
Io=30mA
0
-1
0 4 8 12 16
Time : t [mS]
15
10
5
0
-5
-10
-15
-20
-25
20
3.12
3.1
3.08
3.06
3.04
3.02
3
2.98
2.96
0
NJM2894_3V
Line Transient Response
7
6
Input Voltage
5
4
3
Output Voltage
2
1
@:Io=30mA
Co =1 µF(Cer amic )
0
-1
40 80 120 160 200
Time : t [µS]
NJM2894
NJM2894_3V
ON/OFF Transient Response without Load
7 15
6
Control Voltage
5
10
5
4
Output Voltage
3
0
-5
2
1 @:VIN=4V
Co=1µF(Ceramic)
Io=0A
0
-10
-15
-20
-1 -25
012345
Time : t [S]
3.1
3.08
3.06
3.04
3.02
3
2.98
2.96
2.94
0
NJM2894_3V
Load Transient Response
150
Output Current
100
50
0
Output Voltage
-50
- 10 0
@:VIN=4 V
Co=1µF(Ceramic)
- 15 0
- 20 0
- 25 0
40 80 120 160 200
Time : t [µS]
[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.
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet NJM2894.PDF ] | |
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