NJW4186
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1
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Ver.2014-02-07
High Voltage Io=500mA Adjustable Low Dropout Regulator
GENERAL DESCRIPTION P ACKAGE OUTLINE
The NJW4186 is a high volt age and low current consumption
low dropout regulator .
NJW4186 is an adjustable output volt age type, so it can prov ide
the optimum selection for various applications.
NJW4186 is m ounted to TO-252-5 packa ge and correspon ded
to Low ESR capacitor (MLCC).
The wide input ran ge and wide operate temperat ure ma ke NJW4186
suitable for a, Car accessory, Industrial supplies demanded high reliability.
FEATURES
Operating V olt age Range 4.0 to 40V
Low Current Consumption 55µAtyp. (Ta= 25°C)
Correspond to Low ESR capacitor (MLCC)
Output Current IO(min.)=500mA
High Precision Reference Voltage Vref ±1 .0% (Ta=25°C)
Available Output Volt age Range 2.0V to 16.0V
ON/OFF Control
Internal Thermal Overload Protection
Internal Over Current Protection
Package Outline TO-252-5
PIN CONFIGURATION
Pin Function
1. VIN
2. CONTROL
3. GND
4. VADJ
5. VOUT
NJW4186DL3
BLOCK DIAGRAM
Current
Limit
Thermal
Protection
Bandgap
Reference
V
IN
V
OUT
GND
CONTROL
V
ADJ
3
1
2
3
4
5
NJW4186DL3
NJW4186
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ABSOLUTE MAXIMUM RATINGS (Ta=25°C)
PARAMETER SYNBOL RATINGS UNIT
Input V olt age VIN -0.3 to +45 V
Control V oltag e VCONT -0.3 to +45 V
Output Adjustable Voltage VADJ -0.3 to +6 V
Output V olt age VOUT -0.3 to VIN +17 V
Power Dissipation PD 1190 (*1)
3125 (*2) mW
Junction Temperature Tj -40 to +150 °C
Operating Temperature Topr -40 to +85 °C
S torage Temperature Tstg -40 to +150 °C
(*1): Mounte d on glass epoxy bo ard. (76.2×114.3×1.6mm:based o n EIA/JDEC standard size, 2Layers, Cu area 100m m2)
(*2): Mounte d on glass epoxy bo ard. (76.2×114.3×1.6mm:base d 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
V
IN=4.0V40V
NJW4186
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Ver.2014-02-07
ELECTRICAL CHARACTERISTICS
Unless otherwise noted,
VO3V: VIN=VO+1V, CIN=1.0µF, CO=2.2µF, R1=500k, Ta=25°C
V
O<3V: VIN=4.0 V, CIN=1.0µF, CO=4.7µF, R1=500k, Ta=25°C
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
Reference V o ltage Vref -1.0% 1.29 +1.0% V
Quiescent Current IQ I
O = 0mA, except ICONT - 55 90 µA
Quiescent Current
at Control OFF IQ (OFF) V
CONT = 0V - - 1 µA
Output Current IO VO × 0.9 500 - - mA
Line Regulation VO/VIN VIN = VO+1V ~ 40 V , IO=30mA(VO3V)
VIN = 4V ~ 40V, IO=30mA(VO<3V) - - 0.015 %/V
Load Regulation VO/IO IO = 0mA ~ 500mA - - 0.006 %/mA
Ripple Rejection RR ein = 200mV rms,f =1kHz, IO=30mA,
VO = 3.3V - 60 - dB
Dropout V oltage VI O IO = 300mA - 0.27 0.42 V
Average Temperature
Coefficient o f Output
V oltage VO/Ta Ta = 0 ~ 85°C, IO=30mA - ±50 - ppm/°C
Control Current ICONT V
CONT = 1.6V - 1 3 µA
Control V olt age
for ON-state VCONT(ON) 1.6 - - V
Control V olt age
for OFF-state VCONT(OFF) - - 0.6 V
Available Output
V oltage Rang e VO 2.0 - 16 V
* The se parameters are tested by Pulse Measurement.
POWER DISSIPATION vs. AMBI ENT TEMPERATURE
NJW4186DL3PowerDissipation
(Topr=-40°C ~+85°C,Tj=150° C)
0
500
1000
1500
2000
2500
3000
3500
-50 -25 0 25 50 75 100 125 150
Temperatur e : Ta(°C)
Power Dissipation PD(mW)
on 4 layers board
on 2 layers board
NJW4186
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TEST CIRCU IT
NJW4186
VIN
VIN V
OUT
CONTROL
GND
1.0µF
IIN
ICONT
VCONT
2.2µFIOUT VOUT
V
V
A
A
(ceramic)
R1=500k
R2
VADJ
*3
(*3)Vo<3.0V:Co=4.7uF
NJW4186
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Ver.2014-02-07
TYPICAL APPLICATION
1 In the ca se where ON/OFF Control is not required
NJW4186
VIN VOUT
CONTROL
GND
1.0µF 2.2µF
VOUT
VIN
VADJ
R1:Recommend 5k ~ 500k
R2
Vo= Vref
R
R×
+1
1
2
*4
(*4)Vo<3.0V:Co=4.7uF
R
Connect control pin to VIN pin
2 In use of ON/OFF CONTROL:
NJW4186
VIN VOUT
CONTROL
GND
1.0µF
2.2µF
VOUT
VIN
R
R1
R2
VADJ
Vo= Vref
R
R×
+1
1
2
*5
(*5)Vo<3.0V:Co=4.7uF
R1:recommend 5k ~ 500k
S tate of control pin:
“H” output is enab led.
“L” or “open” output is disabled.
*In the case of using a resist ance "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 voltag e 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.
NJW4186
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*Feed back Resistan ce R1
The output voltage may rise against the set poin t by the leak curren t from the VOUT pin at high te mperature when this
resistan ce 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 5k to 500k as a set r ange of R1.
But, the output noise volt age 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 unst able in the condition of recommended output ca pacitor (Co=4.7uF) and too small feedback re sistor (R1).
In that case, It can improve by making Co or R1 bigger .
Show a character istic example when changed a con dition at the time of the Vo=2.0V / 5.0V se tting for reference.
NJW4186_2.0V
Output Noise Voltage vs Output Current
0
100
200
300
400
500
600
700
800
0 0 0 1 10 100 1000
Output Current [mA]
Output Noise Voltage [µVrms]
Ta=25°C
VIN=4.0V
R1=5k
CO=4.7uF
Solid LineLPF:80kHz
Dotted LineFLAT
NJW4186_2.0V
Output Noise Voltage vs Output Current
0
50
100
150
200
250
300
350
400
450
500
0 0 0 1 10 100 1000
Output Current [mA]
Output Noise Voltage [µVrms]
Ta=25ºC
VIN=4.0V
R1=5k
Co=10uF
Solid LineLPF:80kHz
Dotted LineFLAT
VOUT =2.0VSetting (R1=5 k,Co=4.7µF/Co=10µF)
NJW4186_2.0V
Output Noise Voltage vs Output Current
0
100
200
300
400
500
600
700
800
0 0 0 1 10 100 1000
Output Current [mA]
Output Noise Voltage [µVrms]
Ta=25°C
VIN=4.0V
R1=50k
CO=4.7uF
Solid Line®LPF:80kHz
Dotted Line®FLAT
NJW4186_2.0V
Output Noise Voltage vs Output Current
0
50
100
150
200
250
300
350
400
450
500
0 0 0 1 10 100 1000
Output Current [mA]
Output Noise Voltage [µVrms]
Ta=25ºC
VIN=4.0V
R1=50k
Co=10uF
Solid LineLPF:80kHz
Dotted LineFLAT
VOUT =2.0VSetting (R1=50k,Co=4.7 µF/Co=10µF)
NJW4186
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Ver.2014-02-07
NJW4186_5.0V
Output Noise Voltage vs Output Current
0
50
100
150
200
250
300
350
400
450
500
0 0 0 1 10 100 1000
Output Current [mA]
Output Noise Voltage [µVrms]
@:Ta=25ºC
VIN=6.0V
R1=5k
Co=2.2uF
Solid LineLPF:80kHz
Dotted LineFLAT
NJW4186_5.0V
Output Noise Voltage vs Output Current
0
50
100
150
200
250
300
350
400
450
500
0 0 0 1 10 100 1000
Output Current [mA]
Output Noise Voltage [µVrms]
@:Ta=25ºC
VIN=6.0V
R1=5k
Co=10uF
Solid LineLPF:80kHz
Dotted LineFLAT
VOUT =5.0VSetting (R1=5 k,Co=2.2µF/Co=10µF)
NJW4186_5.0V
Output Noise Voltage vs Output Current
0
50
100
150
200
250
300
350
400
450
500
0001101001000
Output Current [mA]
Output Noise Voltage [µVrms]
@:Ta=25°C
VIN=6.0V
R1=50k
CO=2.2uF
Solid LineLPF:80kHz
Dotted LineFLAT
NJW4186_5.0V
Output Noise Voltage vs Output Current
0
50
100
150
200
250
300
350
400
450
500
0.001 0.01 0.1 1 10 100 1000
Output Current [mA]
Output Noise Voltage [µVrms]
@:Ta=25°C
VIN=6.0V
R1=500k
Co=2.2uF
Solid LineLPF:80kHz
VOUT =5.0VSetting (R1=50 k / R1=500k, Co=2.2µF)
NJW4186
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*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 be tween GND and VIN as shortest path as po ssible to avoid the prob lem.
*Output Cap acitor 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 va lu e (refer to conditions of ELECTRIC CHARACTERISTIC) or l ar ge r
and s hould connect between GND and VOUT a s s h o r t es t p at h a s p os s i b l e for st able operation
The recommended cap acitance depends on the output volt age rank. Especially, low voltage reg ulator requires larger
CO value.
In addition, you should consider varied characteristics of capacitor (a frequency characteristic, a temperature
characteristic, a DC bias cha racteristic and so on) and un evenness peculiar to a ca pacitor supplier enough.
When selecting CO, recommend that have with stand voltage margin against output voltage and superior temperature
characteristic.
NJW4186
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Ver.2014-02-07
*The notes of the evalua tion 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 p attern.
It phenomenon appears conspicuously when output v oltage 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 cir cuit test with the a ctual applicat ion, re commen d connecting schottky
barrier di ode(SBD) between Vo pin and the GND or using output condensers that have ESR more than 2ohrm like a
tant alum or aluminum electrolytic ca pacitor.(see below figure)
(a)In case of insert Schottky barrier diode between VOUT pin- GND
NJW4186
VIN VOUT
GND
VOUT
VIN
SBD
VADJ
(b) In case o f using the electrolysis condenser or insert series resistan ce
NJW4186
VIN V
OUT
GND
VOUT
VIN
VADJ
Connecting resistance(2ohrm or more)in series.
(in case of ESR of COUT is low)
NJW4186
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TYPICAL CHARACERISTICS
NJW4186_5.0V
Output Voltage vs. Input Voltage
4.7
4.8
4.9
5
5.1
5.2
5.3
4 4.2 4.4 4.6 4.8 5 5.2 5.4 5.6 5.8 6
Input Voltage :VIN [V]
Output Voltage :VOUT [V]
@Ta=25°C
COUT=2.2uF
R1=500k
R2=1440kIO=0mA
IO=30mA
IO=200mA
IO=500mA
NJW4186_5.0V
Output Current vs. Output Voltage
0.0
1.0
2.0
3.0
4.0
5.0
6.0
0 250 500 750 1000 1250 1500
Output Current : IOUT [mA]
Output Voltage : VOUT [V]
Ta=150°C
Ta=25°C
Ta=-50°C
@VIN=6.0V
COUT=2.2uF
R1=500k
R2=1440k
NJW4186DL3_5.0V
Ground Pin Current vs Output Current
0
100
200
300
400
500
0 100 200 300 400 500 600 700
Output Current : IOUT [mA]
Ground Pin Current : IGND [µA]
@Ta=25°C
VIN=6.0V
COUT=2.2uF
R1=500k
R2=1440k
NJW4186_5.0V
Quiescent Current vs. Input Voltage
0
100
200
300
400
500
0 5 10 15 20 25 30 35 40
Input Voltage:VIN [V]
Quiescent Current :IQ [µA]
@Ta=25°C
Io=0mA
COUT=2.2uF
R1=500k
R2=1440k
NJW4186
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Ver.2014-02-07
NJW4186_5.0V
Output Voltage vs. Control Voltage
0.0
1.0
2.0
3.0
4.0
5.0
6.0
0.5 0.7 0.9 1.1 1.3 1.5
Control Voltage: VCONT [V]
Output Voltage :VOUT [V]
RC=100k
RC=50k
RC=0
@Ta=25°C
VIN=6.0V
COUT=2.2uF
R1=500k
R2=1440k
NJW4186_5.0V
Control Current vs. Control Voltage
0
10
20
30
40
50
60
70
80
90
100
0 5 10 15 20 25 30 35 40
Control Voltage VCONT[V]
Control Current :ICONT [µA]
RC=100k
RC=0
RC=50k
@Ta=25°C
VIN=6.0V
COUT=2.2uF
R1=500k
R2=1440k
NJW4186_5.0V
Load Regulation vs. Output Current
-240
-220
-200
-180
-160
-140
-120
-100
-80
-60
-40
-20
0
0 100 200 300 400 500 600 700
Output Current : IOUT [mA]
Load Regulation : VO/IO [mV]
@Ta=25°C
VIN=6.0V
COUT=2.2uF
R1=500k
R2=1440k
NJW4186_5.0V
Peak Output Current vs. Input Voltage
0
250
500
750
1000
1250
1500
0 5 10 15 20 25 30 35 40 45
Input Voltage :VIN [V]
Peak Output Current :IOPEAK [mA]
@Ta=25°C
VOUT*0.9
COUT=2.2uF
R1=500k
R2=1440k
NJW4186_5.0V
Dropout Voltage vs. Output Current
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
0 100 200 300 400 500 600 700 800 900
Output Current :IOUT [mA]
Dropout Voltage:dVI-O [V]
@Ta=25°C
COUT=2.2uF
R1=500k
R2=1440k
NJW4186_5.0V
Ripple Rejection Ratio vs. Frequency
0
10
20
30
40
50
60
70
80
90
100
10 100 1k 10k 100k
Frequency :f [Hz]
Ripple Rejection Ratio :RR [dB]
@Ta=25°C
VIN=6V
COUT=2.2uF
eIN=200mVrms
IO=10uA
IO=200mA
IO=30mA
IO=500mA
NJW4186
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NJW4186_5.0V
Ripple Rejection Ratio vs. Output Current
0
10
20
30
40
50
60
70
80
90
100
10 100 1k 10k 100k 1M
Output Current :IOUT [A]
Ripple Rejection Ratio :RR [dB]
@Ta=25°C
VIN=6V
Co=2.2uF
eIN=200mVrms
f=10kHz
f=1kHz
10µ 100µ 1m 10m 100m 1
NJW4186_5.0V
Equivalent Series Resistance vs. Output Current
0.01
0.1
1
10
100
0.001 0.01 0.1 1 10 100 1000
Output Current : IOUT [mA]
Equivalent Series Resistance:
ESR []
STABLE REGION
R1=500k
@Ta=25°C
VIN=6.0V
CO=2.2uF
R1=5k
R1=50k
R1=500k
R1=5k
R1=50k
NJW4186_5.0V
Reference Voltage vs. Temperature
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
-50 -25 0 25 50 75 100 125 150
Temperature :Ta [°C]
Reference Voltage :Vref [V]
@VIN=6V
Co=2.2uF
R1=500k
R2=1440k
NJW4186_5.0V
Output Voltage vs. Temperature
4.7
4.8
4.9
5
5.1
5.2
5.3
-50 -25 0 25 50 75 100 125 150
Temperature :Ta[°C]
Output Voltage :VOUT [V]
@VIN=6.0V
COUT=2.2uF
R1=500k
R2=1440k
IO=0mA
IO=30mA
IO=200mA IO=500mA
NJW4186_5.0V
Control Voltage vs.Temperature
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
-50 -25 0 25 50 75 100 125 150
Temperature :Ta [°C]
Control Voltage :VCONT [V]
@Co=2.2uF
R1=500k
R2=1440k
NJW4186_5.0V
Control Current vs. Temperature
0
0.5
1
1.5
2
2.5
3
-50 -25 0 25 50 75 100 125 150
Temperature :Ta [°C]
Control Current :ICONT [µA]
@VIN=6.0V
VCONT=1.6V
Co=2.2uF
R1=500k
R2=1440k
NJW4186
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Ver.2014-02-07
NJW4186_5.0V
Peak Output Current vs. Temperature
0
250
500
750
1000
1250
1500
-50 -25 0 25 50 75 100 125 150
Temperature :Ta [°C]
Peak Output Current IOPEAK [mA]
VIN=6V
VIN=40V
@VOUT*0.9
Co=2.2uF
R1=500k
R2=1440k
NJW4186_5.0V
Short Cuircuit Current vs. Temperature
0
100
200
300
400
500
600
700
800
-50 -25 0 25 50 75 100 125 150
Temperature :Ta [°C]
Short Cuircuit Current :ISC [mA]
VIN=6V
VIN=40V
@VOUT shorted to GND
Co=2.2uF
R1=500k
R2=1440k
NJW4186_5.0V
Line Regulation vs.Temperature
-0.1
-0.08
-0.06
-0.04
-0.02
0
0.02
0.04
0.06
0.08
0.1
-50 -25 0 25 50 75 100 125 150
Temperature :Ta [°C]
Line Regulation :Vo/VIN [%/V]
@VIN=6-40V
Co=2.2uF
R1=500k
R2=1440k
IOUT=30mA
NJW4186_5.0V
Load Regulation vs. Temperature
0
0.001
0.002
0.003
0.004
0.005
0.006
0.007
0.008
0.009
0.01
-50 -25 0 25 50 75 100 125 150
Temperature :Ta [°C]
Load Regulation :Vo/Io[%/mA]
@VIN=6.0V
IOUT=0 - 500mA
Co=2.2uF
R1=500k
R2=1440k
NJW4186_5.0V
Output Voltage vs. Temperature
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
-50 -25 0 25 50 75 100 125 150 175 200
Temperature :Ta [°C]
Output Voltage :VOUT [V]
@VIN=6V
IOUT=200mA
Co=2.2uF
R1=500k
R2=1440k
NJW4186_5.0V
Dropout Voltage vs. Temperature
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
0.5
-50 -25 0 25 50 75 100 125 150
Temperature :Ta [°C]
Dropout Voltage:dVI-O [V]
@IOUT=300mA
Co=2.2uF
R1=500k
R2=1440k
NJW4186
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NJW4186_5.0V
Quiescent Current vs.Temperature
0
10
20
30
40
50
60
70
80
90
100
-50 -25 0 25 50 75 100 125 150
Temperature :Ta [°C]
Quiescent Current :IQ [µA]
@VIN=6V
IOUT=0mA
Co=2.2uF
R1=500k
R2=1440k
NJW4186_5.0V
Input Transient Response
4.8
4.9
5.0
5.1
5.2
5.3
5.4
5.5
5.6
-0.02 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18
Time : t [msec]
Output Voltage : VOUT [V]
0
1
2
3
4
5
6
7
8
Input Voltage : VIN [V]
@Ta=25°C
VIN=6-7V
IO=30mA
Co=2.2uF(Ceramic)
R1=500k,R2=1440k
Input Voltage
Output Voltage
NJW4186_5.0V
Load Transient Response
4.8
4.9
5.0
5.1
5.2
5.3
5.4
5.5
5.6
-100 0 100 200 300 400 500 600 700 800 900
Time : t [msec]
Output Voltage : VOUT [V]
-600
-500
-400
-300
-200
-100
0
100
200
Output Current : IOUT [mA]
Ta=25°C
VIN=6.0V
IOUT=0-100mA
Co=2.2uF(Ceramic)
R1=500k,R2=1440k,
Output Current
Output Voltage
NJW4186_5.0V
ON/OFF Transient Response without Load
-2
0
2
4
6
8
10
12
14
-10 0 10 20 30 40 50 60 70 80 90
Time : t [sec]
Output Voltage : VOUT [V]
-30
-25
-20
-15
-10
-5
0
5
10
Control Voltage : VCONT [V]
@Ta=25°C
VIN=6V
IOUT=0mA
Co=2.2uF(Ceramic)
R1=500k,R2=1440k
Control Voltage
Output Voltage
NJW4186_5.0V
ON/OFF Transient Response
-2
0
2
4
6
8
10
12
14
-2024681012141618
Time : t [msec]
Output Voltage : VOUT [V]
-30
-25
-20
-15
-10
-5
0
5
10
Control Voltage : VCONT [V]
Control Voltage
Output Voltage
@Ta=25°C
VIN=6.0V
IOUT=30mA
COUT=2.2uF(Ceramic)
R1=500k,R2=1440k
NJW4186
-
15
-
Ver.2014-02-07
NJW4186_5.0V
ON/OFF Transient Response
-2
0
2
4
6
8
10
12
14
-0.2 0.2 0.6 1 1.4 1.8
Time : t [msec]
Output Voltage : VOUT [V]
-30
-25
-20
-15
-10
-5
0
5
10
Control Voltage : VCONT [V]
@Ta=25°C
VIN=6.0V
IO=30mA
Co=2.2uF(Ceramic)
R1=500k,R2=1440k
Control Voltage
Output Voltage
[CAUTION]
The specific ations on this dat abook 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
guarant ee or permission o f any right includi ng the
industrial ri ghts.
NJW4186
-
16
-Ver.2014-02-07
Mouser Electronics
Authorized Distributor
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