NJM2819ADL3-18 [NJRC]
LOW DROPOUT VOLTAGE REGULATOR; 低压差稳压器
| 型号： | NJM2819ADL3-18 |
| 厂家： | 
NEW JAPAN RADIO |
| 描述： | LOW DROPOUT VOLTAGE REGULATOR |
| 文件： | 总11页 (文件大小：281K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NJM2819A
LOW DROPOUT VOLTAGE REGULATOR
ꢀ GENERAL DESCRIPTION
ꢀ PACKAGE OUTLINE
The NJM2819A is a low dropout voltage regulator with ON/OFF
control.
Advanced Bipolar technology achieves low noise, high ripple
rejection and low quiescent current.
NJM2819ADL3
It delivers up to 7V/2A output power with the maximum input
voltage of 10V.
The NJM2819A is suitable for audio/video and digital applications.
ꢀ FEATURES
ꢁ High Ripple Rejection
ꢁ Output Noise Voltage
65dB typ. (f=1kHz,3V Version)
Vno=42µVrms typ. (Vo=3V Version)
ꢁ Output capacitor with 4.7µF ceramic capacitor (Vo≥2.1V)
ꢁ Output Current
Io(max.)=2.0A
ꢁ High Precision Output
ꢁ Low Dropout Voltage
ꢁ ON/OFF Control
Vo ±1.0%
0.1V typ. (Io=1.0A, 3.0V Version)
ꢁ Internal Short Circuit Current Limit
ꢁ Internal Thermal Overload Protection
ꢁ Package Outline
TO-252-5
ꢀ PIN CONFIGURATION
3
1. VIN
2. CONTROL
3. Vo
4. N.C.
5. GND
1 2 3 4 5
NJM2819ADL3
ꢀ EQUIVALENT CIRCUIT
VOUT
VIN
Current
Limit
CONTROL
Bandgap
Reference
Thermal
Protection
GND
Ver.2010-02-08
- 1 -
NJM2819A
ꢀ OUTPUT VOLTAGE RANK LIST
Device Name
VOUT
1.8V
2.1V
3.0V
3.3V
5.0V
5.2V
7.0V
NJM2819ADL3-18
NJM2819ADL3-21
NJM2819ADL3-03
NJM2819ADL3-33
NJM2819ADL3-05
NJM2819ADL3-52
NJM2819ADL3-07
Output voltage options available : 1.8 ~ 7.0V
ꢀABSOLUTE MAXIMUM RATINGS
(Ta=25°C)
PARAMETER
SYMBOL
RATINGS
UNIT
VO > 6.0V: +10
5.0V < VO ≤ 6.0V: +9V
VO ≤ 5.0V: +8
VO > 6.0V: +10
5.0V < VO ≤ 6.0V: +9V
VO ≤ 5.0V: +8
1190(*1)
Input Voltage
VIN
V
Control Voltage
VCONT
PD
V
Power Dissipation
mW
3125(*2)
Operating Temperature
Storage Temperature
Topr
Tstg
-40 ∼ +85
-40 ∼ +150
°C
°C
(*1) : Mounted on glass epoxy board. (76.2×114.3×1.6mm:EIA/JDEC standard size, 2Layers, copper area 100mm2)
(*2) : Mounted on glass epoxy board. (76.2×114.3×1.6mm:EIA/JDEC standard size, 4Layers, copper area 100mm2)
(4Layers inner foil : 74.2 x 74.2mm Applying a thermal beer hall to a board based on JEDEC standard JESD51-5)
ꢀ OPERATING VOLTAGE
VIN=VO + ∆VI-O ~ 9V (In case of VO > 6.0V version)
VIN=VO + ∆VI-O ~ 8V (In case of 5.0V < VO ≤ 6.0V version)
VIN=VO + ∆VI-O ~ 7V (In case of 2.1V ≤ VO ≤ 5.0V version)
VIN=2.3V ~ 7V (In case of VO < 2.1V version)
Ver.2010-02-08
- 2 -
NJM2819A
ꢀ ELECTRICAL CHARACTERISTICS (VIN=Vo+1V, CIN=4.7µF, Co=4.7µF(Co=10µF : 1.8V≤Vo<2.1V), Ta=25°C)
PARAMETER
Output Voltage
SYMBOL
TEST CONDITION
MIN.
-1.0%
-
TYP.
-
MAX.
+1.0%
800
UNIT
V
Vo
IQ
Io=100mA
Quiescent Current
Quiescent Current
at Control OFF
Io=0mA, exclude ICONT
500
µA
IQ (OFF)
Io
VCONT=0V
-
-
1
-
µA
A
Output Current
Vo - 0.3V
2
3
VO>5.0V : VIN=Vo+1V ∼ 9V,
5.0V < VO ≤ 6.0V : VIN=Vo+1V ∼ 8V,
VO≤5.0V : VIN=Vo+1V ∼ 7V,
Io=100mA
Line Regulation
-
-
0.1
%/V
%/A
V
∆Vo/∆VIN
∆Vo/∆Io
∆VI -O
Load Regulation
Dropout Voltage(*2)
-
-
-
-
-
Io=0 ∼ 2.0A
0.05
0.14
0.11
0.10
0.09
0.4
2.1V ≤ Vo < 2.5V
0.25
0.20
0.18
0.16
2.5V ≤ Vo < 2.8V
2.8V ≤ Vo < 3.4V
3.4V ≤ Vo ≤ 7.0V
Io=1.0A
ein=200mVrms,f=1kHz, Io=100mA,
Vo=3V Version
Ripple Rejection
RR
∆Vo/∆Ta
VNO
-
-
-
65
± 50
42
-
-
-
dB
Average Temperature
Coefficient of Output Voltage
Ta=0 ∼ 85°C, Io=100mA
ppm/°C
µVrms
f=10Hz ∼ 80kHz, Io=100mA,
Vo=3V Version
Output Noise Voltage
Control Current
Control Voltage for ON-state
Control Voltage for OFF-state
ICONT
VCONT(ON)
VCONT(OFF)
VCONT=1.6V
-
1.6
-
2.3
2.4
3
-
-
-
-
12
-
0.6
-
µA
V
V
V
V
Io≤1.5A, Vo×0.96
Vo<2.1V
Minimum Input Voltage
VIN (MIN.)
1.5A<Io≤2.0A, Vo×0.96
-
(*2): The output voltage excludes under 2.1V.
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.
Ver.2010-02-08
- 3 -
NJM2819A
ꢀ POWER DISSIPATION vs. AMBIENT TEMPERATURE
NJM2819ADL3 PowerDissipation
(Topr=-40~+85°C,Tj=150°C)
3500
3000
2500
2000
1500
1000
500
on 4 layers board
on 2 layers board
0
-50
-25
0
25
50
75
100
Temperature : Ta(°C)
ꢀ TEST CIRCUIT
IIN
VIN
VOUT
A
*3
4.7µF
(Ceramic)
IOUT
VOU
V
VIN
NJM2819A
4.7µF
ICONT
CONTROL
A
GND
V VCONT
*3 : 1.8 ≤Vo<2.6V version : Co=10µF (Ceramic)
Ver.2010-02-08
- 4 -
NJM2819A
ꢀ TYPICALAPPLICATION
1 In the case where ON/OFF Control is not required:
VIN
VIN
VOUT
VOUT
*4
4.7µF
4.7µF
NJM2819A
R
CONTROL
GND
*4 : 1.8 ≤Vo<2.6V version : Co=10µF
Connect control terminal to VIN terminal
2 In use of ON/OFF CONTROL:
VIN
VIN
VOUT
VOUT
*4
4.7µF
NJM2819A
4.7µF
R
CONTROL
GND
*4 : 1.8 ≤Vo<2.6V version : Co=10µF
State of control terminal:
•“H”→ output is enabled.
•“L” or “open” → output is disabled.
ꢂIn 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.2010-02-08
- 5 -
NJM2819A
ꢂInput Capacitance CIN
Input Capacitance CIN is required to prevent oscillation and reduce power supply ripple for applications with high
power supply impedance or a long power supply line.
Use the CIN value of 4.7µF greater to avoid the problem.
CIN should connect between GND and VIN as short as possible.
ꢂOutput Capacitance CO
Output capacitor (Co) is required for a phase compensation of the internal error amplifier. The capacitance and the
equivalent series resistance (ESR) influence stability of the regulator.
If use a smaller Co, it may cause excess output noise or oscillation of the regulator due to lack of the phase
compensation. Therefore, use Co with the recommended capacitance or greater value and connect between Vo
terminal and GND terminal with minimal wiring.
The recommended capacitance depends on the output voltage. Low voltage regulator requires greater value of
the Co. Thus, check the recommended capacitance for each output voltage.
Use of a greater Co reduces output noise and ripple output, and also improves transient response of the output
voltage against rapid load change.
This product is designed to work with any capacitor including a low ESR capacitor for the Co; however, refer
"Equivalent Series Resistance vs. Output Current" and choose suitable capacitor.
ꢂ When distance from an IC to load is long, an IC may cause malfunction by wiring capacity and an L ingredient
Please use it after having evaluated it enough.
Ver.2010-02-08
- 6 -
NJM2819A
ꢀ TYPICAL CHARACTERISTICS
NJM2819A_3.0V
Output Volatage vs.Output Current
NJM2819A_3.0V
Output Voltage vs.Input Voltage
4
3.5
3
3.4
@:Ta=25°C
Co=4.7uF(Ceramic)
3.3
3.2
2.5
2
3.1
Io=0A
3
1.5
1
Io=500mA
2.9
@:Ta=25°C
2.8
VIN=4.0V
Co=4.7uF(Ceramic)
0.5
0
Io=2000mA
2.7
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
0
1
2
3
4
5
6
Input Voltage : VIN (V)
Output Current : Io (A)
NJM2819A_3.0V
NJM2819A_3.0V
Dropout Voltage vs.Output Current
Ground Pin Current vs.Output Current
5
4
3
2
1
0
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
@:Ta=25°C
VIN=4.0V
Co=4.7uF(Ceramic)
@:Ta=25°C
Vin=2.5V
Co=2.2uF(Ceramic)
0
500
1000
1500
2000
2500
3000
0
500
1000
1500
2000
2500
3000
Output Currnet : Io (mA)
Output Current : Io (mA)
NJM2819A_3.0V
NJM2819A_3.0V
Output Voltage vs. Control Voltage
Control Current vs.Control Voltage
4
50
@:Ta=25°C
VIN=4.0V
@:Ta=25°C
VIN=4.0V
Co=4.7uF(Ceramic)
Io=500mA
3.5
3
Co=4.7uF(Ceramic)
Io=500mA
40
30
20
10
0
2.5
2
Rc=100kΩ
1.5
1
Rc=100kΩ
Rc=50kΩ
Rc=0Ω
Rc=50kΩ
Rc=0Ω
0.5
0
0
0.5
1
1.5
2
2.5
0
0.5
1
1.5
2
2.5
3
3.5
4
Control Voltage (V)
Control Voltage (V)
Ver.2010-02-08
- 7 -
NJM2819A
NJM2819A_3.0V
Load Regulation vs.Output Current
NJM2819A_3.0V
Peak Output Current vs.Input Voltage
6
5
4
3
2
1
0
0
-10
-20
-30
-40
-50
@:Ta=25°C
Vin=2.5V
Co=4.7uF(Ceramic)
@:Ta=25°C
Co=4.7uF(Ceramic)
0
1000
2000
3000
4000
4
6
8
10
12
Output Current :Io (mA)
Input Voltage : VIN (V)
NJM2819A_3.0V
Output Noize Voltage vs.Output Current
NJM2819A_3.0V
Quiescent Current vs.Input Voltage
100
2000
1500
1000
500
0
@:Ta=25°C
@Ta=25°C
Output is open
Co=4.7uF(Ceramic)
Inculding Icont
VIN=4.0V
Cin=4.7µF(Ceramic)
Co=4.7µF(Ceramic)
80
60
40
20
0
LPH:80kHz
0.001
0.01
0.1
1
10
100
1000
10000
0
2
4
6
8
10
12
Input Voltage:VIN (V)
Output Current :Io (mA)
NJM2819A_3.0V
NJM2819A_3.0V
Ripple Rejection vs.Output Current
Ripple Rejection Ratio vs.Frequency
100
90
80
70
60
50
40
30
20
10
0
100
Io=0A
90
80
70
60
50
40
30
20
10
0
f=1kHz
Io=100mA
@:Ta=25°C
VIN=4.0V
ein=200mVrms
Cin=4.7µF
Co=4.7µF
@:Ta=25°C
VIN=4.0V
ein=200mVrms
Cin=4.7µF(Ceramic)
Co=4.7µF(Ceramic)
f=10kHz
Io=2000mA
0.001
0.1
10
1000
0.01
0.1
1
10
100
Output Current :Io(mA)
Frequency :f (kHz)
Ver.2010-02-08
- 8 -
NJM2819A
NJM2819A_3.0V
Equivalent Serise Resistance vs. Output Current
NJM2819A_3.0V
Dropout Voltage vs.Temperature
100
10
@Ta=25°C
VIN=4.0V
Co=4.7uF(Ceramic)
0.25
0.20
0.15
0.10
0.05
0.00
@:Io=1000mA
Co=4.7uF(Ceramic)
1
STABLE REGION
0.1
-50
0
50
100
150
0.01
Temperature : (°C)
0.001
0.01
0.1
1
10
100
1000
10000
Output Current : Io(mA)
NJM2819A_3.0V
Control Voltage vs.Temperature
NJM2819A_3.0V
Output Voltage vs.Temperature
3.05
3.04
3.03
3.02
3.01
3.00
2.99
2.98
2.97
2.96
2.95
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
@:VIN=4.0V
Output is Open
Co=4.7uF(Ceramic)
@:VIN=4.0V
Io=100mA
Co=4.7uF(Ceramic)
-50
0
50
100
150
-50
0
50
100
150
Temperature : (°C)
Temperature : (°C)
NJM2819A_3.0V
NJM2819A_3.0V
Control Current vs.Temperature
Quiescent Current vs.Temperature
900
800
700
600
500
400
300
200
100
0
12.00
10.00
8.00
6.00
4.00
2.00
0.00
@:VIN=4.0V
Output is Open
Co=4.7uF(Ceramic)
@:VIN=4.0V
Vcont=1.6V
Co=4.7uF(Ceramic)
-50
0
50
Temperature : (°C)
100
150
-50
0
50
100
150
Temperature : (°C)
Ver.2010-02-08
- 9 -
NJM2819A
NJM2819A_3.0V
NJM2819A_3.0V
Short Circuit Current vs.Temperature
Line Regulation vs.Temperature
0.10
0.08
0.06
0.04
0.02
0.00
-0.02
-0.04
-0.06
-0.08
-0.10
1000
900
800
700
600
500
400
300
200
100
0
@:VIN=4.0V
Output is short to Ground
Co=4.7uF(Ceramic)
@:VIN=4.0-9.0V
Io=100mA
Co=4.7uF(Ceramic)
-50
0
50
100
150
-50
0
50
100
150
Temperature : (°C)
Temperature : (°C)
NJM2819A_3.0V
NJM2819A_3.0V
Output Peak Current vs.Temperature
Load Regulation vs.Temperature
4500
4000
3500
3000
2500
2000
1500
1000
500
0.30
0.09
@:VIN=4.0
Io=0-2000mA
Co=4.7uF(Ceramic)
@:VIN=4.0V
Co=4.7uF(Ceramic)
-0.12
0
-50
0
50
100
150
-50
0
50
100
150
Temperature : (°C)
Temperature : (°C)
NJM2819A_3.0V
Output Voltage vs.Temperature
4.00
3.50
3.00
2.50
2.00
1.50
1.00
0.50
0.00
@:VIN=4.0V
Io=100mA
Co=4.7uF(Ceramic)
-50
0
50
100
150
200
Temperature : (°C)
Ver.2010-02-08
- 10 -
NJM2819A
NJM2819A_3.0V
ON/OFF Transient Response
NJM2819A_3.0V
ON/OFF Transient Response without Load
7
6
10
5
7
6
10
5
5
0
5
Control Voltage
@:Ta=25°C
0
Control Voltage
VIN=4.0V
Io=100mA
Co=4.7uF(Ceramic)
4
3
2
-5
4
-5
@:Ta=25°C
VIN=4.0V
-10
-15
3
-10
-15
-20
Io=0mA
Co=4.7uF(Ceramic)
Output Voltage
2
1
-20
1
Output Voltage
0
-25
-30
0
-25
-30
-1
-1
0
4
8
12
16
20
0
4
8
12
16
20
Time : t(s)
Time : t(ms)
NJM2819A_3.0V
Load Transient Response
NJM2819A_3.0V
Input Transient Response
3.10
3.08
3.06
3.04
3.02
3.00
2.98
2.96
2.94
1500
1000
500
1.80
1.75
1.70
1.65
1.60
1.55
1.50
1.45
1.40
7
6
5
4
3
2
1
Output Current
Input Voltage
0
@:Ta=25°C
VIN=4.0V
Io=100mA
-500
-1000
-1500
-2000
-2500
Cin=4.7uF(Ceramic)
Co=4.7uF(Ceramic)
Output Voltage
@:Ta=25°C
VIN=4.0V
Output Voltage
Io=500-1000mA
Co=4.7uF(Ceramic)
0
-1
0
40
80
120
160
200
0
40
80
120
160
200
Time : t(µs)
Time : t(ms)
[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.2010-02-08
- 11 -
相关型号：
NJM2823F
Three Terminal Voltage Reference, 1 Output, 1.136V, Trim/Adjustable, BIPolar, PDSO5, SOT-23, 5PIN
NJRC
©2020 ICPDF网 联系我们和版权申明