NJW4186DL3 [NJRC]
Adjustable Positive LDO Regulator,;
| 型号： | NJW4186DL3 |
| 厂家： | 
NEW JAPAN RADIO |
| 描述： | Adjustable Positive LDO Regulator, 输出元件 调节器 |
| 文件： | 总16页 (文件大小：421K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NJW4186
High Voltage Io=500mA Adjustable Low Dropout Regulator
ꢀGENERAL DESCRIPTION
ꢀPACKAGE OUTLINE
The NJW4186 is a high voltage and low current consumption
low dropout regulator.
NJW4186 is an adjustable output voltage type, so it can provide
the optimum selection for various applications.
NJW4186 is mounted to TO-252-5 package and corresponded
to Low ESR capacitor (MLCC).
NJW4186DL3
The wide input range and wide operate temperature make NJW4186
suitable for a, Car accessory, Industrial supplies demanded high reliability.
ꢀFEATURES
ꢁ Operating Voltage Range
ꢁ Low Current Consumption
ꢁ Correspond to Low ESR capacitor (MLCC)
ꢁ Output Current
4.0 to 40V
55µAtyp. (Ta= 25°C)
IO(min.)=500mA
Vref ±1.0% (Ta=25°C)
2.0V to 16.0V
ꢁ High Precision Reference Voltage
ꢁ Available Output Voltage Range
ꢁ ON/OFF Control
ꢁ Internal Thermal Overload Protection
ꢁ Internal Over Current Protection
ꢁ Package Outline
TO-252-5
ꢀPIN CONFIGURATION
3
Pin Function
1. VIN
2. CONTROL
3. GND
4. VADJ
1 2 3 4 5
5. VOUT
NJW4186DL3
ꢀBLOCK DIAGRAM
VOUT
VIN
Current
Limit
CONTROL
VADJ
Bandgap
Reference
Thermal
Protection
GND
Ver.2014-02-07
- 1 -
NJW4186
ꢀABSOLUTE MAXIMUM RATINGS
(Ta=25°C)
PARAMETER
Input Voltage
Control Voltage
SYNBOL
VIN
VCONT
RATINGS
-0.3 to +45
-0.3 to +45
UNIT
V
V
Output Adjustable Voltage
Output Voltage
VADJ
VOUT
-0.3 to +6
V
V
-0.3 to VIN ≤+17
1190 (*1)
Power Dissipation
PD
mW
3125 (*2)
Junction Temperature
Operating Temperature
Storage Temperature
Tj
Topr
Tstg
-40 to +150
-40 to +85
-40 to +150
°C
°C
°C
(*1): Mounted on glass epoxy board. (76.2×114.3×1.6mm:based on EIA/JDEC standard size, 2Layers, Cu area 100mm2)
(*2): Mounted on glass epoxy board. (76.2×114.3×1.6mm:based on EIA/JDEC standard, 4Layers)
(For 4Layers: Applying 74.2 x 74.2mm inner Cu area and thermal via hole to a board based on JEDEC standard JESD51-5)
ꢀINPUT VOLTAGE RANGE
VIN=4.0V～40V
Ver.2014-02-07
- 2 -
NJW4186
ꢀELECTRICAL CHARACTERISTICS
Unless otherwise noted, VO≥3V: VIN=VO+1V, CIN=1.0µF, CO=2.2µF, R1=500kΩ, Ta=25°C
VO<3V: VIN=4.0V, CIN=1.0µF, CO=4.7µF, R1=500kΩ, Ta=25°C
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP.
MAX.
UNIT
Reference Voltage
Quiescent Current
Quiescent Current
at Control OFF
Output Current
Line Regulation
Load Regulation
Ripple Rejection
Dropout Voltage
Vref
IQ
-1.0%
-
1.29 +1.0%
V
µA
IO = 0mA, except ICONT
55
90
1
IQ (OFF)
IO
VCONT = 0V
-
-
µA
mA
%/V
%/mA
dB
500
-
-
-
VO × 0.9
VIN = VO+1V ~ 40V, IO=30mA(VO≥3V)
VIN = 4V ~ 40V, IO=30mA(VO<3V)
IO = 0mA ~ 500mA
ein = 200mVrms,f=1kHz, IO=30mA,
VO = 3.3V
-
-
-
-
0.015
0.006
-
∆VO/∆VIN
∆VO/∆IO
RR
-
60
0.27
IO = 300mA
∆VI O
0.42
V
Average Temperature
Coefficient of Output
Voltage
-
-
∆VO/∆Ta Ta = 0 ~ 85°C, IO=30mA
±50
ppm/°C
Control Current
Control Voltage
for ON-state
ICONT
VCONT = 1.6V
-
1
-
3
-
µA
V
VCONT(ON)
1.6
Control Voltage
for OFF-state
Available Output
Voltage Range
VCONT(OFF)
VO
-
-
-
0.6
16
V
V
2.0
* These parameters are tested by Pulse Measurement.
ꢀPOWER DISSIPATION vs. AMBIENT TEMPERATURE
NJW4186DL3ꢀPowerDissipation
(Topr=-40°C ~+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
125
150
Temperature : Ta(°C)
Ver.2014-02-07
- 3 -
NJW4186
ꢀTEST CIRCUIT
IIN
A
VIN
VOUT
*3
IOUT
VOUT
V
2.2µF
VIN
NJW4186
(ceramic)
1.0µF
R2
(*3)Vo<3.0V:Co=4.7uF
ICONT
VADJ
CONTROL
A
R1=500kΩ
GND
VCONT
V
Ver.2014-02-07
- 4 -
NJW4186
ꢀTYPICALAPPLICATION
1 In the case where ON/OFF Control is not required
VIN
VIN
VOUT
VOUT
*4
2.2µF
(*4)Vo<3.0V:Co=4.7uF
1.0µF
NJW4186
R
R2
CONTROL
GND
VADJ
Connect control pin to VIN pin
R1:Recommend 5k ~ 500kΩ
R2
R1
⎛
⎜
⎞
Vo=
+1 ×Vref
⎟
⎝
⎠
2 In use of ON/OFF CONTROL:
VIN
VIN
VOUT
VOUT
*5
2.2µF
NJW4186
(*5)Vo<3.0V:Co=4.7uF
1.0µF
R
R2
CONTROL
VADJ
R1:recommend 5k ~ 500kΩ
GND
R2
R1
⎛
⎜
⎞
Vo=
+1 ×Vref
⎟
⎝
⎠
State of control pin:
•“H”→ output is enabled.
•“L” or “open” → output is disabled.
*In the case of using a resistance "R" between VIN and control.
If this resistor is inserted, it can reduce the control current when the control voltage is high.
The applied voltage to control pin should set to consider voltage drop through the resistor “R” and the minimum
control voltage for ON-state.
The VCONT (ON) and ICONT have temperature dependence as shown in the "Control Current vs. Temperature" and "
Control Voltage vs. Temperature" characteristics. Therefore, the resistance "R" should be selected to consider the
temperature characteristics.
Ver.2014-02-07
- 5 -
NJW4186
*Feed back Resistance R1
The output voltage may rise against the set point by the leak current from the VOUT pin at high temperature when this
resistance is set too big.
Conversely, the current flowing to R1 grows big when R1 is set too small, and make the consumption current
increase.
From the above, recommend 5kΩ to 500kΩ as a set range of R1.
But, the output noise voltage tends to increase with the resistance value of R1 become small.
Especially, In the case of low output voltage setting such as VOUT=2.0V, there is the possibility that the output voltage
becomes unstable in the condition of recommended output capacitor (Co=4.7uF) and too small feedback resistor (R1).
In that case, It can improve by making Co or R1 bigger.
Show a characteristic example when changed a condition at the time of the Vo=2.0V / 5.0V setting for reference.
NJW4186_2.0V
Output Noise Voltage vs Output Current
NJW4186_2.0V
Output Noise Voltage vs Output Current
800
700
600
500
400
300
200
100
0
500
450
400
350
300
250
200
150
100
50
Ta=25ºC
VIN=4.0V
Ta=25°C
VIN=4.0V
R1=5kΩ
CO=4.7uF
R1=5kΩ
Co=10uF
Solid Line→LPF:80kHz
Dotted Line→FLAT
Solid Line→LPF:80kHz
Dotted Line→FLAT
0
0
0
0
1
10
100
1000
0
0
0
1
10
100
1000
Output Current [mA]
Output Current [mA]
VOUT =2.0VSetting (R1=5k,Co=4.7µF/Co=10µF)
NJW4186_2.0V
NJW4186_2.0V
Output Noise Voltage vs Output Current
Output Noise Voltage vs Output Current
800
700
600
500
400
300
200
100
0
500
450
400
350
300
250
200
150
100
50
Ta=25°C
VIN=4.0V
Ta=25ºC
VIN=4.0V
R1=50kΩ
CO=4.7uF
R1=50kΩ
Co=10uF
Solid Line→LPF:80kHz
Dotted Line→FLAT
Solid Line®LPF:80kHz
Dotted Line®FLAT
0
0
0
0
1
10
100
1000
0
0
0
1
10
100
1000
Output Current [mA]
Output Current [mA]
VOUT =2.0VSetting (R1=50k,Co=4.7µF/Co=10µF)
Ver.2014-02-07
- 6 -
NJW4186
NJW4186_5.0V
NJW4186_5.0V
Output Noise Voltage vs Output Current
Output Noise Voltage vs Output Current
500
450
400
350
300
250
200
150
100
50
500
450
400
350
300
250
200
150
100
50
@:Ta=25ºC
VIN=6.0V
@:Ta=25ºC
VIN=6.0V
R1=5kΩ
Co=2.2uF
Solid Line→LPF:80kHz
Dotted Line→FLAT
R1=5kΩ
Co=10uF
Solid Line→LPF:80kHz
Dotted Line→FLAT
0
0
0
0
0
1
10
100
1000
0
0
0
1
10
100
1000
Output Current [mA]
Output Current [mA]
VOUT =5.0VSetting (R1=5k,Co=2.2µF/Co=10µF)
NJW4186_5.0V
NJW4186_5.0V
Output Noise Voltage vs Output Current
Output Noise Voltage vs Output Current
500
450
400
350
300
250
200
150
100
50
500
450
400
350
300
250
200
150
100
50
@:Ta=25°C
VIN=6.0V
@:Ta=25°C
VIN=6.0V
R1=50kΩ
CO=2.2uF
R1=500kΩ
Co=2.2uF
Solid Line→LPF:80kHz
Solid Line→LPF:80kHz
Dotted Line→FLAT
0
0
0
0
0
1
10
100
1000
0.001 0.01
0.1
1
10
100
1000
Output Current [mA]
Output Current [mA]
VOUT =5.0VSetting (R1=50k / R1=500k, Co=2.2µF)
Ver.2014-02-07
- 7 -
NJW4186
*Input Capacitor CIN
Input Capacitor CIN is required to prevent oscillation and reduce power supply ripple for applications when high
power supply impedance or a long power supply line.
Therefore, use the recommended CIN value (refer to conditions of ELECTRIC CHARACTERISTIC) or larger and
should connect between GND and VIN as shortest path as possible to avoid the problem.
*Output Capacitor CO
Output capacitor (CO) will be required for a phase compensation of the internal error amplifier.
The capacitance and the equivalent series resistance (ESR) influence to stable operation of the regulator.
Use of a smaller CO may cause excess output noise or oscillation of the regulator due to lack of the phase
compensation.
On the other hand, Use of a larger CO reduces output noise and ripple output, and also improves output
transient response when rapid load change.
Therefore, use the recommended CO value (refer to conditions of ELECTRIC CHARACTERISTIC) or larger
and should connect between GND and VOUT as shortest path as possible for stable operation
The recommended capacitance depends on the output voltage rank. Especially, low voltage regulator requires larger
CO value.
In addition, you should consider varied characteristics of capacitor (a frequency characteristic, a temperature
characteristic, a DC bias characteristic and so on) and unevenness peculiar to a capacitor supplier enough.
When selecting CO, recommend that have withstand voltage margin against output voltage and superior temperature
characteristic.
Ver.2014-02-07
- 8 -
NJW4186
*The notes of the evaluation when output pin is shorted to GND
When evaluated short circuit test, the IC may break down because of regenerated energy by the parasitic inductance
included in wiring pattern.
It phenomenon appears conspicuously when output voltage is high(Vo=8.0V or more)or connected to inductive load.
In case of short circuit in actual application, not likely to destruction of IC because of some of Resistance exist
between load.
If happened above phenomenon by the short circuit test with the actual application, recommend connecting schottky
barrier diode(SBD) between Vo pin and the GND or using output condensers that have ESR more than 2ohrm like a
tantalum or aluminum electrolytic capacitor.(see below figure)
(a)In case of insert Schottky barrier diode between VOUT pin- GND
VIN
VIN
VOUT
VOUT
SBD
NJW4186
VADJ
GND
(b) In case of using the electrolysis condenser or insert series resistance
VIN
VIN
VOUT
VOUT
NJW4186
VADJ
Connecting resistance(2ohrm or more)in series.
(in case of ESR of COUT is low)
GND
Ver.2014-02-07
- 9 -
NJW4186
ꢀ TYPICAL CHARACERISTICS
NJW4186_5.0V
NJW4186_5.0V
Output Voltage vs. Input Voltage
Output Current vs. Output Voltage
5.3
5.2
5.1
5
6.0
5.0
4.0
3.0
2.0
1.0
0.0
@Ta=25°C
COUT=2.2uF
R1=500kΩ
R2=1440kΩ
IO=0mA
IO=30mA
Ta=150°C
Ta=25°C
IO=200mA
4.9
4.8
4.7
@VIN=6.0V
OUT=2.2uF
IO=500mA
Ta=-50°C
C
R1=500kΩ
R2=1440kΩ
4
4.2 4.4 4.6 4.8
5
5.2 5.4 5.6 5.8
6
0
250
500
750
1000 1250 1500
Output Current : IOUT [mA]
Input Voltage :VIN [V]
NJW4186_5.0V
Quiescent Current vs. Input Voltage
NJW4186DL3_5.0V
Ground Pin Current vs Output Current
500
400
300
200
100
0
500
400
300
200
100
0
@Ta=25°C
Io=0mA
COUT=2.2uF
R1=500kΩ
R2=1440kΩ
@Ta=25°C
VIN=6.0V
COUT=2.2uF
R1=500kΩ
R2=1440kΩ
0
100 200 300 400 500 600 700
Output Current : IOUT [mA]
0
5
10 15 20 25 30 35 40
Input Voltage:VIN [V]
Ver.2014-02-07
- 10 -
NJW4186
NJW4186_5.0V
Output Voltage vs. Control Voltage
NJW4186_5.0V
Control Current vs. Control Voltage
6.0
5.0
4.0
3.0
2.0
1.0
0.0
100
90
80
70
60
50
40
30
20
10
0
@Ta=25°C
VIN=6.0V
@Ta=25°C
VIN=6.0V
COUT=2.2uF
R1=500kΩ
R2=1440kΩ
COUT=2.2uF
R1=500kΩ
R2=1440kΩ
RC=100kΩ
RC=50kΩ
RC=50kΩ
RC=0Ω
RC=0Ω
RC=100kΩ
0.5
0.7
0.9
1.1
1.3
1.5
0
5
10 15 20 25 30 35 40
Control Voltage VCONT[V]
Control Voltage: VCONT [V]
NJW4186_5.0V
NJW4186_5.0V
Load Regulation vs. Output Current
Peak Output Current vs. Input Voltage
0
1500
1250
1000
750
500
250
0
@Ta=25°C
-20
-40
V
OUT*0.9
COUT=2.2uF
R1=500kΩ
R2=1440kΩ
-60
-80
-100
-120
-140
-160
-180
-200
-220
-240
@Ta=25°C
VIN=6.0V
OUT=2.2uF
C
R1=500kΩ
R2=1440kΩ
0
100 200 300 400 500 600 700
Output Current : IOUT [mA]
0
5
10 15 20 25 30 35 40 45
Input Voltage :VIN [V]
NJW4186_5.0V
NJW4186_5.0V
Dropout Voltage vs. Output Current
Ripple Rejection Ratio vs. Frequency
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
100
90
80
70
60
50
40
30
20
10
0
@Ta=25°C
COUT=2.2uF
R1=500kΩ
R2=1440kΩ
IO=30mA
IO=10uA
IO=200mA
@Ta=25°C
VIN=6V
IO=500mA
COUT=2.2uF
eIN=200mVrms
0
100 200 300 400 500 600 700 800 900
Output Current :IOUT [mA]
10
100
1k
10k
100k
Frequency :f [Hz]
Ver.2014-02-07
- 11 -
NJW4186
NJW4186_5.0V
NJW4186_5.0V
Ripple Rejection Ratio vs. Output Current
Equivalent Series Resistance vs. Output Current
100
100
90
80
70
60
50
40
30
20
10
0
R1=5kΩ
R1=50kΩ
10
1
@Ta=25°C
VIN=6.0V
R1=500k
f=1kHz
CO=2.2uF
STABLE REGION
R1=5kΩ
@Ta=25°C
VIN=6V
f=10kHz
R1=50kΩ
0.1
R1=500k
Co=2.2uF
eIN=200mVrms
0.01
10µ
100µ
1m
10m
100m
1
0.001 0.01
0.1
1
10
100
1000
Output Current :IOUT [A]
Output Current : IOUT [mA]
NJW4186_5.0V
NJW4186_5.0V
Reference Voltage vs. Temperature
Output Voltage vs. Temperature
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
5.3
@VIN=6.0V
@VIN=6V
COUT=2.2uF
R1=500kΩ
R2=1440kΩ
Co=2.2uF
R1=500kΩ
R2=1440kΩ
5.2
5.1
5
IO=0mA
IO=30mA
4.9
4.8
4.7
IO=500mA
IO=200mA
-50 -25
0
25 50 75 100 125 150
-50 -25
0
25 50 75 100 125 150
Temperature :Ta[°C]
Temperature :Ta [°C]
NJW4186_5.0V
NJW4186_5.0V
Control Voltage vs.Temperature
Control Current vs. Temperature
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
3
2.5
2
@VIN=6.0V
@Co=2.2uF
R1=500kΩ
R2=1440kΩ
VCONT=1.6V
Co=2.2uF
R1=500kΩ
R2=1440kΩ
1.5
1
0.5
0
-50 -25
0
25 50 75 100 125 150
-50 -25
0
25 50 75 100 125 150
Temperature :Ta [°C]
Temperature :Ta [°C]
Ver.2014-02-07
- 12 -
NJW4186
NJW4186_5.0V
Short Cuircuit Current vs. Temperature
NJW4186_5.0V
Peak Output Current vs. Temperature
1500
1250
1000
750
500
250
0
800
700
600
500
400
300
200
100
0
@VOUT*0.9
Co=2.2uF
R1=500kΩ
@VOUT shorted to GND
Co=2.2uF
R1=500kΩ
VIN=6V
R2=1440kΩ
R2=1440kΩ
VIN=6V
VIN=40V
VIN=40V
-50 -25
0
25 50 75 100 125 150
-50 -25
0
25 50 75 100 125 150
Temperature :Ta [°C]
Temperature :Ta [°C]
NJW4186_5.0V
NJW4186_5.0V
Line Regulation vs.Temperature
Load Regulation vs. Temperature
0.1
0.08
0.06
0.04
0.02
0
0.01
0.009
0.008
0.007
0.006
0.005
0.004
0.003
0.002
0.001
0
@VIN=6-40V
@VIN=6.0V
Co=2.2uF
R1=500kΩ
R2=1440kΩ
IOUT=30mA
IOUT=0 - 500mA
Co=2.2uF
R1=500kΩ
R2=1440kΩ
-0.02
-0.04
-0.06
-0.08
-0.1
-50 -25
0
25 50 75 100 125 150
-50 -25
0
25 50 75 100 125 150
Temperature :Ta [°C]
Temperature :Ta [°C]
NJW4186_5.0V
NJW4186_5.0V
Output Voltage vs. Temperature
Dropout Voltage vs. Temperature
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
0.5
0.45
0.4
@IOUT=300mA
Co=2.2uF
R1=500kΩ
R2=1440kΩ
0.35
0.3
@VIN=6V
0.25
0.2
IOUT=200mA
Co=2.2uF
R1=500kΩ
R2=1440kΩ
0.15
0.1
0.05
0
-50 -25
0
25 50 75 100 125 150 175 200
Temperature :Ta [°C]
-50 -25
0
25 50 75 100 125 150
Temperature :Ta [°C]
Ver.2014-02-07
- 13 -
NJW4186
NJW4186_5.0V
Quiescent Current vs.Temperature
100
90
80
70
60
50
40
30
20
10
0
@VIN=6V
IOUT=0mA
Co=2.2uF
R1=500kΩ
R2=1440kΩ
-50 -25
0
25 50 75 100 125 150
Temperature :Ta [°C]
NJW4186_5.0V
NJW4186_5.0V
Input Transient Response
Load Transient Response
5.6
5.5
5.4
5.3
5.2
5.1
5.0
4.9
4.8
8
7
6
5
4
3
2
1
0
5.6
5.5
5.4
5.3
5.2
5.1
5.0
4.9
4.8
200
100
0
Output Current
Input Voltage
@Ta=25°C
VIN=6-7V
Ta=25°C
VIN=6.0V
IO=30mA
IOUT=0-100mA
Co=2.2uF(Ceramic)
R1=500kΩ,R2=1440kΩ
Co=2.2uF(Ceramic)
R1=500kΩ,R2=1440kΩ,
Output Voltage
Output Voltage
-100
0
100 200 300 400 500 600 700 800 900
Time : t [msec]
-0.02
0
0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18
Time : t [msec]
NJW4186_5.0V
NJW4186_5.0V
ON/OFF Transient Response without Load
ON/OFF Transient Response
14
12
10
8
10
5
14
12
10
8
10
5
0
0
Control Voltage
@Ta=25°C
Control Voltage
@Ta=25°C
VIN=6V
VIN=6.0V
IOUT=0mA
IOUT=30mA
Co=2.2uF(Ceramic)
R1=500kΩ,R2=1440kΩ
COUT=2.2uF(Ceramic)
R1=500kΩ,R2=1440kΩ
6
6
4
4
2
2
0
0
Output Voltage
Output Voltage
-2
-2
-10
0
10 20 30 40 50 60 70 80 90
Time : t [sec]
-2
0
2
4
6
8
10 12 14 16 18
Time : t [msec]
Ver.2014-02-07
- 14 -
NJW4186
NJW4186_5.0V
ON/OFF Transient Response
14
12
10
8
10
5
0
Control Voltage
6
4
@Ta=25°C
VIN=6.0V
2
IO=30mA
Co=2.2uF(Ceramic)
R1=500kΩ,R2=1440kΩ
0
Output Voltage
-2
-0.2
0.2
0.6
1
1.4
1.8
Time : t [msec]
[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.2014-02-07
- 15 -
NJW4186
Ver.2014-02-07
- 16 -
相关型号：
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