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PDF NJM2892 Data sheet ( Hoja de datos )
| Número de pieza | NJM2892 | |
| Descripción | 2ch LOW DROPOUT VOLTAGE REGULATOR | |
| Fabricantes | JRC | |
| Logotipo |  |
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NJM2892
2ch LOW DROPOUT VOLTAGE REGULATOR
! GENERAL DESCRIPTION
The NJM2892 is a 2ch low dropout voltage regulator with
ON/OFF control.
Advanced Bipolar technology achieves low noise, high ripple
rejection and low quiescent current.
! FEATURES
" High Ripple Rejection
75dB typ. (f=1kHz Vo=3V version)
" Output Noise Voltage
VNO =45µVrms typ.
" Output capacitor with 1.0µF ceramic capacitor (Vo≥2.7V)
" Output Current
Io(max.)=100mA x 2ch
" High Precision Output
Vo±1.0%
" Low Dropout Voltage
0.1V typ. (Io=60mA)
" ON/OFF Control
" Internal Short Circuit Current Limit
" Internal Thermal Overload Protection
" Bipolar Technology
" Package Outline
SOT-23-6 (MTP-6 : 2.8x2.9x1.1mm)
! PIN CONFIGURATION
! PACKAGE OUTLINE
NJM2892F1
6 54
1 23
NJM2892F1
PIN FUNCTION
1. VOUT2
2. GND
3. VOUT1
4. CONTROL1
5. VIN
6. CONTROL2
Ver.2006-02-20
-1-
1 page  
www.DataSheet4U.com
2 In use of ON/OFF CONTROL:
VIN
0.1µ F
R1
VIN VOUT1
NJM2892
R2
CONTROL1
V OUT2
CONTROL2
GND
NJM2892
V OUT1
1.0µ F *7
V OUT2
1.0µ F *7
*7 1.8V<Vo ≤ 2.6V version : Co=2.2µF
Vo≤1.8V version : Co=4.7µF
State of control terminal:
•“H”→ output is enabled.
•“L” or “open” → output is disabled.
%In the case of using a resistance "R" between VIN and control.
The current flow into the control terminal while the IC is ON state (ICONT) can be reduced when a pull up resistance
"R" is inserted between VIN and the control terminal.
The minimum control voltage for ON state (VCONT (ON)) is increased due to the voltage drop caused by ICONT and the
resistance "R". The ICONT is temperature dependence as shown in the "Control Current vs. Temperature"
characteristics. Therefore, the resistance "R" should be carefully selected to ensure the control voltage exceeds the
VCONT (ON) over the required temperature range.
Ver.2006-02-20
-5-
5 Page 
www.DataSheet4U.com
! ELECTRICAL CHARACTERISTICS
NJM2892_3.0V
ON/OFF Transient Response Without Load
7 10
6
Control Voltage
5
5
0
4 -5
3
Output Voltage
2
-10
-15
1 @:Ta=25oC
-20
VIN=4.0V
0 Co=1.0µF(Ceramic)
-25
Io=0mA
-1 -30
-0.5 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5
Time : t [ S]
NJM2892_3.0V
Line Transient Response
3.08 7
3.06
Input Voltage
3.04
6
5
3.02 4
3
Output Voltage
2.98
3
2
2.96
2.94
2.92
-20
@:Ta=25oC
Co=1. 0µF(C eramic )
Io=30mA
1
0
-1
0 20 40 60 80 100 120 140 160 180
Time : t [µS]
NJM2892
NJM2892_3.0V
ON/OFF Transient Response
7 10
6
Control Voltage
5
5
0
4 -5
3
Output Voltage
2
-10
-15
1
0
-1
-2
@:Ta=25oC
-20
VIN=4.0V
Co=1.0µF(Ceramic)
-25
Io=30mA
-30
0 2 4 6 8 10 12 14 16 18
Time : t [mS]
NJM2892_3.0V
Load Transient Response
3.08 150
3.06
Output Current
3.04
100
50
3.02
Output Voltage
3
0
-50
2.98 -100
2.96
@:Ta=25oC
-150
2.94
VIN=4.0V
Co=1. 0µF(C eramic )
-200
Io=30mA
2.92 -250
-120 -100 -80 -60 -40 -20 0 20 40 60 80
Time : t [µS]
Ver.2006-02-20
[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 -
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet NJM2892.PDF ] | |
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