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PDF NJM2841-T Data sheet ( Hoja de datos )
| Número de pieza | NJM2841-T | |
| Descripción | (Automotive) Low Output Voltage Low Dropout Regulator | |
| Fabricantes | New Japan Radio | |
| Logotipo |  |
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Automotive NJM2841-T
Low Output Voltage Low Dropout Regulator
FEATURES
PACKAGE OUTLINE
• Output Voltage Range
0.8V to 2.5V
• High Ripple Rejection
86 dB typ. (VO=1.2V version )
• Output Noise Voltage
VNO=40μVrms( VO=1.2V version )
• Output Current
IO(min)=500mA
• High Precision Output
VO±1.0% @Ta=25°C
VO±2.5% @Ta= -40°C to +125°C
• Dual Supply Voltage Type
VIN, VBIAS(sequence free)
• Output Capacitor with 4.7μF ceramic capacitor
NJM2841F
• Low Dropout Voltage
• ON/OFF Control
0.1V typ. @IO=300mA
• Built-in Thermal Overload Protection and Over Current Protection
• Bipolar Technology
• Package Outline
SOT-23-5
• AEC-Q100
“This product meets the reliability level required by AEC-Q100.”
PIN CONNECTION
54
12 3
NJM2841F
1. CONTROL
2. GND
3. VOUT
4. VIN
5. VBIAS
BLOCK DIAGRAM
VIN
VBIAS
CONTROL
Bandgap
Reference
Thermal
Protection
VOUT
GND
Over Current
Protection
OUTPUT VOLTAGE RANK LIST
Device Name
VOUT
NJM2841F012-T
1.2V
Output Voltage Range: 0.8V to 2.5V (0.1V step)
Ver.2013-08-28
-1-
1 page  
Automotive NJM2841-T
POWER DISSIPATION vs. AMBIENT TEMPERATURE
NJM2841F PowerDis s ipation
(Topr=-40~+105°C,Tj=150°C)
600
on 2 layers board
500
400
300
200 Device itself
100
0
-50
-25
0 25 50 75
Temperature : Ta(°C)
100 125 150
TEST CIRCUIT
A IBIAS
VBIAS
VIN
VBIAS
0.1μF
NJM2841
A ICONT CONTROL
V VCONT
GND
VOUT
A IIN
4.7μF
VIN
4.7μF
(Ceramic)
VIOUT
VOUT
Ver.2013-08-28
-5-
5 Page 
NJM2841_1.2V
Peak Output Current v.s. Temperature
1000
800
600
400
@:VIN=2.2V
200 Vbias=Vcont=2.5V
Cbias=0.1uF(Ceramic)
Cin=4.7uF(Ceramic)
Co=4. 7uF( Ceramic)
0
-50 0 50 100
Temperature : Ta ( oC)
NJM2841_1.2V
Line Regulation(VIN) v.s. Temperature
0.2
@:dVIN=2.2-7.2V
Vbias= Vcont=2.5V
Io=30mA
Cbias=0.1uF(Ceramic)
Cin=4.7uF(Ceramic)
0.1 Co=4.7uF(Ceramic)
150
0
-0.1
-0.2
-50
0 50 100
Temperature : Ta ( oC)
0.01
0.008
NJM2841_1.2V
Load Regulation v.s. Temperature
@:VIN=2.2V
Vbias= Vcont=2.5V
Io=30-500mA
Cbias=0.1uF(Ceramic)
Cin=4.7uF(Ceramic)
Co=4.7uF(Ceramic)
0.006
150
0.004
0.002
0
-50
Ver.2013-08-28
0 50 100
Temperature : Ta ( oC)
150
Automotive NJM2841-T
NJM2841_1.2V
Quiescent Current v.s. Temperature
300
250
200
150
100
Vbias=Vcont=2.5V
Vin=2.2V
Output is open
50 Cbias=0.1uF(Ceramic)
Cin=4.7uF(Ceramic)
Co=4. 7uF( Ceramic)
0
-50 0 50 100
Temperature : Ta ( oC)
NJM2841_1.2V
Line Regulation(VBIAS) v.s. Temperature
0.2
@:dVbias=2.5-7.2V
VIN= Vcont=2.2V
Io=30mA
Cbias=0.1uF(Ceramic)
Cin=4.7uF(Ceramic)
0.1 Co=4.7uF(Ceramic)
150
0
-0.1
-0.2
-50
1.5
0 50 100
Temperature : Ta ( oC)
NJM2841_1.2V
Output Voltage v.s. Temperature
150
1
0.5
@:VBIAS= CONT=2.5V
Vin=2.2V
Io=30mA
Cin=4.7uF(Ceramic)
Cbias=0.1uF(Ceramic)
Co=4. 7uF( Ceramic)
0
-50 0 50 100
Temperature Ta ( oC)
150
200
- 11 -
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet NJM2841-T.PDF ] | |
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