NJW4186
High Voltage Io=500mA Adjustable Low Dropout Regulator
GENERAL DESCRIPTION
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).
The wide input range and wide operate temperature make NJW4186
suitable for a, Car accessory, Industrial supplies demanded high reliability.
PACKAGE OUTLINE
NJW4186DL3
FEATURES
Operating Voltage Range
Low Current Consumption
Correspond to Low ESR capacitor (MLCC)
Output Current
High Precision Reference Voltage
Available Output Voltage Range
ON/OFF Control
Internal Thermal Overload Protection
Internal Over Current Protection
Package Outline
PIN CONFIGURATION
3
4.0 to 40V
55µAtyp. (Ta= 25°C)
I
O
(min.)=500mA
V
ref
±1.0%
(Ta=25°C)
2.0V to 16.0V
TO-252-5
12345
Pin Function
1. V
IN
2. CONTROL
3. GND
4. V
ADJ
5. V
OUT
NJW4186DL3
BLOCK DIAGRAM
V
IN
Current
Limit
V
ADJ
Bandgap
Reference
Thermal
Protection
GND
V
OUT
CONTROL
Ver.2014-02-07
-1-
NJW4186
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYNBOL
Input Voltage
V
IN
Control Voltage
V
CONT
Output Adjustable Voltage
V
ADJ
Output Voltage
V
OUT
Power Dissipation
Junction Temperature
Operating Temperature
Storage Temperature
P
D
Tj
Topr
Tstg
°C
°C
°C
(*1): Mounted on glass epoxy board. (76.2×114.3×1.6mm:based on EIA/JDEC standard size, 2Layers, Cu area 100mm
2
)
(*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
V
IN
=4.0V∼40V
RATINGS
-0.3 to +45
-0.3 to +45
-0.3 to +6
-0.3 to V
IN
≤+17
1190 (*1)
3125 (*2)
-40 to +150
-40 to +85
-40 to +150
(Ta=25°C)
UNIT
V
V
V
V
mW
-2-
Ver.2014-02-07
NJW4186
ELECTRICAL CHARACTERISTICS
Unless otherwise noted, V
O
≥3V:
V
IN
=V
O
+1V, C
IN
=1.0µF, C
O
=2.2µF, R1=500kΩ, Ta=25°C
V
O
<3V: V
IN
=4.0V, C
IN
=1.0µF, C
O
=4.7µF, R1=500kΩ, Ta=25°C
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP.
MAX.
UNIT
Reference Voltage
V
ref
-1.0%
1.29 +1.0%
V
Quiescent Current
I
Q
I
O
= 0mA, except I
CONT
-
55
90
µA
Quiescent Current
at Control OFF
Output Current
I
Q (OFF)
V
CONT
= 0V
-
-
1
µA
I
O
∆V
O
/∆V
IN
∆V
O
/∆I
O
RR
∆V
I O
Line Regulation
Load Regulation
Ripple Rejection
Dropout Voltage
Average Temperature
Coefficient of Output
Voltage
Control Current
Control Voltage
for ON-state
Control Voltage
for OFF-state
Available Output
Voltage Range
V
O
×
0.9
V
IN
= V
O
+1V
~
40V, I
O
=30mA(V
O
≥3V)
V
IN
= 4V
~
40V, I
O
=30mA(V
O
<3V)
I
O
= 0mA ~ 500mA
ein = 200mVrms,f=1kHz, I
O
=30mA,
V
O
= 3.3V
I
O
= 300mA
Ta = 0 ~ 85°C, I
O
=30mA
V
CONT
= 1.6V
500
-
-
-
-
-
-
-
60
-
0.015
0.006
-
mA
%/V
%/mA
dB
0.27
±50
1
-
-
0.42
-
3
-
0.6
V
ppm/°C
µA
V
V
∆V
O
/∆Ta
I
CONT
V
CONT(ON)
V
CONT(OFF)
-
-
1.6
-
V
O
2.0
-
16
V
* These parameters are tested by Pulse Measurement.
POWER DISSIPATION vs. AMBIENT TEMPERATURE
NJW4186DL3 PowerDissipation
(Topr=-40°C ~+85°C,Tj=150°C)
3500
3000
Power Dissipation P
D
(mW)
on 4 layers board
2500
2000
1500
1000
500
0
-50
-25
0
25
50
75
100
125
150
on 2 layers board
Temperature : Ta(°C)
Ver.2014-02-07
-3-
NJW4186
TEST CIRCUIT
A
V
IN
I
IN
V
IN
V
OUT
*3
1.0µF
NJW4186
R2
2.2µF
(ceramic)
I
OUT
V
V
OUT
A
V
V
CONT
I
CONT
(*3)Vo<3.0V:Co=4.7uF
CONTROL
V
ADJ
R1=500kΩ
GND
-4-
Ver.2014-02-07
NJW4186
TYPICAL APPLICATION
1
In the case where ON/OFF Control is not required
V
IN
1.0µF
V
IN
V
OUT
*4
V
OUT
2.2µF
(*4)Vo<3.0V:Co=4.7uF
NJW4186
R
CONTROL
Connect control pin to V
IN
pin
R2
V
ADJ
R1:Recommend 5k ~ 500kΩ
GND
Vo=
⎛
R
2
+1⎞ ×
Vref
⎜
⎟
⎝
R
1
⎠
2
In use of ON/OFF CONTROL:
V
IN
V
IN
V
OUT
V
OUT
*5
2.2µF
1.0µF
R
CONTROL
V
ADJ
R1:recommend 5k ~ 500kΩ
R1
NJW4186
R2
(*5)Vo<3.0V:Co=4.7uF
GND
Vo=
⎛
R
2
+1⎞ ×
Vref
⎜
⎟
⎝
R
1
⎠
State of control pin:
•“H”→
output is enabled.
•“L”
or “open”
→
output is disabled.
*In the case of using a resistance "R" between V
IN
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 V
CONT (ON)
and I
CONT
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-
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