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PDF NJM2856 Data sheet ( Hoja de datos )
| Número de pieza | NJM2856 | |
| Descripción | LOW DROPOUT VOLTAGE REGULATOR | |
| Fabricantes | New Japan Radio | |
| Logotipo |  |
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NJM2856
LOW DROPOUT VOLTAGE REGULATOR
GENERAL DESCRIPTION
The NJM2856 is a low dropout voltage regulator
with ON/OFF control.
Advanced Bipolar technology achieves low noise,
high ripple rejection.
It delivers up to 1A output power with the maximum
input voltage tolerance of 10V.
The package option is high power package as TO252-5
and HSOP8.
The NJM2856 is suitable for various applications
such as portable / consumer equipments.
FEATURES
High Ripple Rejection 75dB typ. (f=1kHz,Vo=3V Version)
Output Noise Voltage Vno=45µVrms typ.
Output capacitor with 2.2µF ceramic capacitor (Vo≥2.7V)
Output Current
Io(max.)=1A
High Precision Output Vo±1.0%
Low Dropout Voltage 0.20V typ. (Io=600mA)
ON/OFF Control
Internal Short Circuit Current Limit
Internal Thermal Overload Protection
Bipolar Technology
Package Outline
TO-252-5 HSOP8
PACKAGE OUTLINE
NJM2856DL3
NJM2856GM1
PIN CONFIGURATION
3
12 3 4 5
PIN CONFIGURATION
1. CONTROL
2. VIN
3. GND
4. Vo
5. NC
NJM2856DL3
8765
Exposed Pad on
1 2 3 4 backside connected
NJM2856GM1 to GND
PIN CONFIGURATION
1. VOUT
2. N.C.
3. GND
4. N.C.
5. CONTROL
6. N.C.
7. N.C.
8. VIN
EQUIVALENT CIRCUIT
VIN
Control
Bandgap
Reference
Thermal
Protection
VOUT
GND
Ver.2011-04-04
1
1 page  
TEST CIRCUIT
A IIN
VIN VOUT
VIN
0.33µF
NJM2856
A ICONT CONTROL
V VCONT
GND
*4 1.7V<Vo≤2.6V version: Co=4.7µF(ceramic)
Vo≤1.7V version: Co=10µF(ceramic)
NJM2856
2.2µF *4
(ceramic)
IOUT V VOU
Ver.2011-04-04
5
5 Page 
TYPICAL CHARACTERISTICS
1000
800
NJM2856_3.0V
Short Circuit Current v.s. Temperature
@:VIN=4.0V
Output is short to ground.
Cin=0.33uF(Ceramic)
Co=2.2uF(Ceramic)
600
400
200
0
-50 0 50 100
Temperature : Ta (oC)
0.03
0.025
NJM2856_3.0V
Load Regulation v.s. Temperature
@:VIN=4.0V
Vcont=4.0V
Io=0-1000mA
Cin=0.33uF(Ceramic)
Co=2.2uF(Ceramic)
0.02
150
0.015
0.01
0.005
0
-50
3.1
3.05
0 50 100
Temperature : Ta (oC)
150
NJM2856_3.0V
Output Voltage v.s. Temperature
@:Vin= Vcont=4.0V
Io=30mA
Cin=0.33uF(Ceramic)
Co=4.7uF(Ceramic)
NJM2856
NJM2856_3.0V
Line Regulation v.s. Temperature
0.1
0.05
0
-0.05
@:dVIN=4.0-8.0V
Vcont=4.0V
Io=30mA
Cin=0.33uF(Ceramic)
Co=2.2uF(Ceramic)
-0.1
-50
0 50 100
Temperature : Ta (oC)
NJM2856_3.0V
Peak Output Current v.s. Temperature
3000
150
2400
1800
1200
md=1ms
md=100ms
600 @:VIN=4.0V
Vcont=4.0V
Cin=0.33uF(Ceramic)
Co=2.2uF(Ceramic)
0
-50 0
50 100
Temperature : Ta (oC)
150
3
2.95
2.9
-50
Ver.2011-04-04
0 50 100
Temperature Ta (oC)
150
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet NJM2856.PDF ] | |
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