NJM2863 [NJRC]
Ultra Low Noise Low Dropout Voltage Regulator; 超低噪声低压差稳压器
| 型号： | NJM2863 |
| 厂家： | 
NEW JAPAN RADIO |
| 描述： | Ultra Low Noise Low Dropout Voltage Regulator |
| 文件： | 总7页 (文件大小：135K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NJM2863/64
Ultra Low Noise Low Dropout Voltage Regulator
ꢀ GENERAL DESCRIPTION
ꢀ PACKAGE OUTLINE
The NJM2863/64 is a 2ch low dropout voltage regulator designed
for VCOApplications.
Advanced Bipolar technology achieves low noise, high ripple
rejection and low quiescent current.
NJM2863F/64F
ꢀ FEATURES
ꢁ High Ripple Rejection
75dB typ. (f=1kHz)
ꢁ Output capacitor with 1.0µF ceramic capacitor
ꢁ Output Noise Voltage
Vno=19µVrms typ. (Cp=0.01µF, Co=1.0µF(Ceramic))
Vno=12µVrms typ. (Cp=0.1µF, Co=10µF(Tantalum))
ꢁ Output Current
Io(max.)=100mA
Vo±1.0%
0.10V typ. (Io=60mA)
(Active High)
ꢁ High Precision Output
ꢁ Low Dropout Voltage
ꢁ ON/OFF Control
ꢁ Internal Short Circuit Current Limit
ꢁ Internal Thermal Overload Protection
ꢁ Bipolar Technology
ꢁ Package Outline
MTP5
ꢀ PIN CONFIGURATION
PIN FUNCTION
1.CONTROL
2.GND
3.NOISE BYPASS
4.VOUT
5.VIN
5
1
4
3
1.VIN
2.GND
3.CONTROL
4.NOISE BYPASS
5.VOUT
2
NJM2863F
NJM2864F
ꢀ EQUIVALENT CIRCUIT
VIN
VOUT
Control
Thermal
Protection
Bandgap
Reference
Noise
Bypass
GND
ꢀ OUTPUT VOLTAGE RANK LIST
Device Name
NJM286×F21
NJM286×F25
NJM286×F27
NJM286×F28
NJM286×F285
VOUT
2.1V
2.5V
2.7V
2.8V
Device Name
VOUT
2.9V
3.0V
3.3V
5.0V
NJM286×F29
NJM286×F03
NJM286×F33
NJM286×F05
2.85V
Ver.2004-01-20
- 1 -
NJM2863/64
ꢀABSOLUTE MAXIMUM RATINGS
(Ta=25°C)
PARAMETER
Input Voltage
Control Voltage
Power Dissipation
Operating Temperature
Storage Temperature
SYMBOL
RATINGS
UNIT
V
V
mW
°C
°C
VIN
VCONT
PD
Topr
Tstg
+14
+14(*note 1)
200
−40 +85
−40 +125
(*note 1): When input voltage is less than +14V, the absolute maximum control
voltage is equal to the input voltage.
ꢀ ELECTRICAL CHARACTERISTICS
(VIN=Vo+1V, CIN=0.1µF, Co=1.0µF: Vo≥2.7V (Co=2.2µF: Vo≤2.6V), Cp=0.01µF, Ta=25°C)
PARAMETER
Output Voltage
SYMBOL
TEST CONDITION
MIN. TYP. MAX. UNIT
Vo
IQ
Io=30mA
-1.0%
+1.0%
180
V
−
120
Quiescent Current
Quiescent Current
at Control OFF
Output Current
Line Regulation
Load Regulation
Dropout Voltage
Io=0mA, except Icont
−
µA
IQ(OFF)
Io
VCONT=0V
100
nA
−
−
Vo-0.3V
100
−
130
−
mA
%/V
−
0.10
∆Vo/∆VIN VIN=Vo+1V Vo+6V, Io=30mA
∆Vo/∆Io Io=0 100mA
∆VI−O
0.03 %/mA
−
−
Io=60mA
0.10
0.18
V
−
ein=200mVrms,f=1kHz, Io=10mA,
Vo=3V Version
Ripple Rejection
RR
75
dB
−
−
−
−
Average Temperature
Coefficient of Output
Voltage
∆Vo/∆Ta Ta=0 85°C, Io=10mA
± 50
−
−
ppm/°C
f=10Hz 80kHz, Io=10mA, Cp=0.01µF,
Output Noise Voltage1
Output Noise Voltage2
VNO1
VNO2
19
12
−
µVrms
µVrms
V
Co=1.0µF (Ceramic), Vo=3V Version
f=10Hz 80kHz, Io=10mA, Cp=0.1µF,
Co=10µF (Tantalum), Vo=3V Version
Control Voltage for
ON-state
Control Voltage for
OFF-state
VCONT(ON)
VCONT(OFF)
1.6
−
0.6
V
−
−
(*note 2): The above specification is a common specification for all output voltages.
Therefore, it may be different from the individual specification for a specific output voltage.
ꢀ TEST CIRCUIT
IIN
A
VIN
VOUT
IOUT
VOUT
V
1.0µF
(ceramic)
VIN
NJM2863/64
0.1µF
OR
2.2µF: Vo≤2.6V
Cp=0.01µF
NOISE
ICONT
BYPASS
CONTROL
A
GND
V
VCONT
Ver.2004-01-20
- 2 -
NJM2863/64
ꢀ TYPICALAPPLICATION
1 In the case where ON/OFF Control is not required:
VIN
VIN
VOUT
VOUT
(ceramic)
1.0µF
0.1µF
2863/64
ＮＪＭ
OR
2.2 F: Vo 2.6V
µ
≤
R
(0 300kΩ)
NOISE
BYPASS
CONTROL
Cp=0.01 F
µ
GND
Connect control terminal to VIN terminal
The quiescent current can be reduced by using a resistance “R”. Instead, it increases the minimum operating
voltage. For further information, please refer to Figure “Output Voltage vs. Control Voltage”.
2 In use of ON/OFF CONTROL:
VIN
VIN
VOUT
VOUT
(ceramic)
1.0µF
ＮＪＭ2863/64
OR
0.1µF
2.2µF: Vo≤2.6V
R
NOISE
BYPASS
CONTROL
Cp=0.01 F
µ
GND
State of control terminal:
•“H”→ output is enabled.
•“L” or “open” → output is disabled.
ꢂNoise bypass Capacitance Cp
Noise bypass capacitance Cp reduces noise generated by band-gap reference circuit.
Noise level and ripple rejection will be improved when larger Cp is used.
Use of smaller Cp value may cause oscillation.
Use the Cp value of 0.01µF greater to avoid the problem.
Ver.2004-01-20
- 3 -
NJM2863/64
ꢀ ELECTRICAL CHARACTERISTICS
NJM2863/64_3.0V
NJM2863/64_3.0V
Output Voltage v.s. Input Voltage
Output Voltage vs. Output Current
3.2
3.1
3
4
3.5
3
@:Ta=25oC
Co=1.0uF(Ceramic)
Cp=0.01uF
Io=0A
2.5
2
2.9
2.8
2.7
1.5
1
Io=30mA
@:Ta=25oC
VIN=4V
Co=1.0uF(Ceramic)
Cp=0.01uF
Io=100mA
0.5
0
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
0
50
100
150
200
120
3
Input Voltage :Vin [V]
Output Current :Io [mA]
NJM2863/64_3.0V
NJM2863/64_3.0V
Ground Pin Current vs. Output Voltage
Dropout Voltage vs. Output Current
@:Ta=25oC
Co=1.0uF(Ceramic)
Cp=0.01uF
20
0.3
0.25
0.2
@:Ta=25oC
VIN=4V
Co=1.0uF(Ceramic)
Cp=0.01uF
15
10
5
0.15
0.1
0.05
0
0
0
20
40
60
80
100
120
0
20
40
60
80
100
Output Current :Io [mA]
Output Current :Io [mA]
NJM2863/64_3.0V
NJM2863/64_3.0V
Control Current v.s. Control Voltage
Output Voltage v.s. Control Voltage
30
4
3.5
3
@:Ta=25oC
Vin=4.0V
Co=1.0uF(Ceramic)
Cp=0.01uF
Io=30mA
@:Ta=25oC
Vin=4.0V
Co=1.0uF(Ceramic)
Cp=0.01uF
Io=30mA
25
20
15
10
5
Rc=0Ω
2.5
2
Rc=50kΩ
Rc=100kΩ
Rc=0Ω
Rc=50kΩ
1.5
1
0.5
0
Rc=100kΩ
0
0
0.5
1
1.5
2
2.5
3
3.5
4
0
0.5
1
1.5
2
2.5
Control Voltage :Vcont [V]
Control Voltage :Vcont [V]
Ver.2004-01-20
- 4 -
NJM2863/64
ꢀ ELECTRICAL CHARACTERISTICS
NJM2863/64_3.0V
Output Noise Voltage vs. Noise Bypass Capacitor
NJM2863/64_3.0V
Output Noise Voltage vs. Output Current
300
250
200
150
100
50
100
80
60
40
20
0
@:Ta=25oC
VIN=4.0V
@:Ta=25oC
VIN=4V
Co=1uF(Ceramic)
Io=10mA
LPF:80kHz
Co=1.0uF(Ceramic)
Cp=0.01uF
Co=10uF(Tantalum)
Cp=0.1uF
0
0.1u
1p
10p
100p
1000p
0.01u
0.001
0.01
0.1
1
10
100
Noise Bypass Capacitor : Cp(F)
Output Current :Io [mA]
NJM2863/64_3.0V
NJM2863/64_3.0V
Ripple Rejection vs. Output Current
Ripple Rejection Ratio v.s. Frequency
100
90
80
70
60
50
40
30
20
90
80
70
60
50
40
30
20
Io=10mA
f=1kHz
Io=30mA
f=10kHz
@:Ta=25oC
VIN=4V
ein=200mVrms
Co=1.0uF(Ceramic)
Cp=0.01uF
@:Ta=25oC
VIN=4.0V
ein=200mVrms
Co=1.0uF(Ceramic)
Cp=0.01uF
100k
1k
10k
10
100
0.001
0.01
0.1
1
10
100
Frequency :f [Hz]
Output Current : Io(mA)
NJM2863/64_3.0V
Equivalent Series Resistance vs. Output Current
100
@:Ta=25oC
VIN=4V
Co=1.0uF(Ceramic)
Cp=0.01uF
10
STABLE REGION
1
0.1
0.02
0.001
0.01
0.1
1
10
100
Output Current :Io [mA]
Ver.2004-01-20
- 5 -
NJM2863/64
ꢀ ELECTRICAL CHARACTERISTICS
NJM2863/64_3.0V
NJM2863/64_3.0V
Dropout Voltage v.s. Temperature
Control Voltage v.s. Temperature
0.3
0.25
0.2
2
1.5
1
@:VIN=4.0V
Output is open.
Co=1.0uF(Ceramic)
Cp=0.01uF
@:Io=60mA
Co=1.0uF(Ceramic)
Cp=0.01uF
0.15
0.1
0.5
0.05
0
0
-50
0
50
100
150
-50
0
50
100
150
Temperature :Ta ["C]
Temperature :Ta ["C]
NJM2863/64_3.0V
NJM2863/64_3.0V
Output Voltage v.s. Temperature
Quiescent Current v.s. Temperature
3.5
3
300
250
200
150
100
50
@:VIN=4.0V
Output is open.
Co=1.0uF(Ceramic)
Cp=0.01uF
2.5
2
1.5
1
@:VIN=4.0V
Io=30mA
Co=1.0uF(Ceramic)
Cp=0.01uF
0.5
0
0
-50
0
50
100
150
200
-50
0
50
Temperature :Ta ["C]
100
150
Temperature :Ta ["C]
Ver.2004-01-20
- 6 -
NJM2863/64
[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.2004-01-20
- 7 -
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