NJW4186. High Voltage Io=500mA Adjustable Low Dropout Regulator. FEATURES Operating Voltage Range

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1 High Voltage Io=5mA 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 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 4. to 4V Low Current Consumption 55µAtyp. (Ta= 25 C) Correspond to Low ESR capacitor (MLCC) Output Current I O (min.)=5ma High Precision Reference Voltage V ref ±1.% (Ta=25 C) Available Output Voltage Range 2.V to 16.V ON/OFF Control Internal Thermal Overload Protection Internal Over Current Protection Package Outline TO PIN CONFIGURATION NJW4186DL3 Pin Function CONTROL 3. GND 4. V ADJ 5. BLOCK DIAGRAM CONTROL Current Limit V ADJ Bandgap Reference Thermal Protection GND Ver

2 ABSOLUTE MAXIMUM RATINGS (Ta=25 C) PARAMETER SYNBOL RATINGS UNIT Input Voltage -.3 to +45 V Control Voltage V CONT -.3 to +45 V Output Adjustable Voltage V ADJ -.3 to +6 V Output Voltage -.3 to +17 V Power Dissipation P D 119 (*1) 3125 (*2) mw Junction Temperature Tj -4 to +15 C Operating Temperature Topr -4 to +85 C Storage Temperature Tstg -4 to +15 C (*1): Mounted on glass epoxy board. ( mm:based on EIA/JDEC standard size, 2Layers, Cu area 1mm 2 ) (*2): Mounted on glass epoxy board. ( mm: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 =4.V4V Ver

3 ELECTRICAL CHARACTERISTICS Unless otherwise noted, V O 3V: =V O +1V, C IN =1.µF, C O =2.2µF, R1=5kΩ, Ta=25 C V O <3V: =4.V, C IN =1.µF, C O =4.7µF, R1=5kΩ, Ta=25 C PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Reference Voltage V ref -1.% % V Quiescent Current I Q I O = ma, except I CONT µa Quiescent Current at Control OFF I Q (OFF) V CONT = V µa Output Current I O V O ma Line Regulation V O / = V O +1V ~ 4V, I O =3mA(V O 3V) = 4V ~ 4V, I O =3mA(V O <3V) %/V Load Regulation V O / I O I O = ma ~ 5mA %/ma Ripple Rejection RR ein = 2mVrms,f=1kHz, I O =3mA, V O = 3.3V db Dropout Voltage V I O I O = 3mA V Average Temperature Coefficient of Output V O / Ta Ta = ~ 85 C, I O =3mA - ±5 - ppm/ C Voltage Control Current I CONT V CONT = 1.6V µa Control Voltage for ON-state V CONT(ON) V Control Voltage for OFF-state V CONT(OFF) V Available Output Voltage Range V O V * These parameters are tested by Pulse Measurement. POWER DISSIPATION vs. AMBIENT TEMPERATURE 35 NJW4186DL3PowerDissipation (Topr=-4 C ~+85 C,Tj=15 C) Power Dissipation P D (mw) on 4 layers board on 2 layers board Temperature : Ta( C) Ver

4 TEST CIRCUIT 1.µF NJW4186 *3 2.2µF I OUT (ceramic) A I CONT CONTROL V ADJ R2 (*3)Vo<3.V:Co=4.7uF V V CONT GND R1=5kΩ Ver

5 TYPICAL APPLICATION 1 In the case where ON/OFF Control is not required 1.µF NJW4186 *4 2.2µF (*4)Vo<3.V:Co=4.7uF R R2 Connect control pin to pin CONTROL GND V ADJ R1:Recommend 5k ~ 5kΩ Vo= R2 +1 Vref R1 2 In use of ON/OFF CONTROL: 1.µF NJW4186 *5 2.2µF (*5)Vo<3.V:Co=4.7uF R2 CONTROL GND V ADJ R1:recommend 5k ~ 5kΩ Vo= R2 +1 Vref R1 State of control pin: H output is enabled. L or open output is disabled. *In the case of using a resistance "R" between 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

6 *Feed back Resistance R1 The output voltage may rise against the set point by the leak current from the 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 5kΩ 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 =2.V, 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.V / 5.V setting for reference. Output Noise Voltage [µvrms] NJW4186_2.V Output Noise Voltage vs Output Current Ta=25 C =4.V R1=5kΩ C O =4.7uF Solid Line LPF:8kHz Dotted Line FLAT Output Current [ma] Output Noise Voltage [µvrms] NJW4186_2.V Output Noise Voltage vs Output Current Ta=25ºC =4.V R1=5kΩ Co=1uF Solid Line LPF:8kHz Dotted Line FLAT Output Current [ma] =2.VSetting (R1=5k,Co=4.7µF/Co=1µF) Output Noise Voltage [µvrms] NJW4186_2.V Output Noise Voltage vs Output Current Ta=25 C =4.V R1=5kΩ C O =4.7uF Solid Line LPF:8kHz Dotted Line FLAT Output Current [ma] Output Noise Voltage [µvrms] NJW4186_2.V Output Noise Voltage vs Output Current Ta=25ºC =4.V R1=5kΩ Co=1uF Solid Line LPF:8kHz Dotted Line FLAT Output Current [ma] =2.VSetting (R1=5k,Co=4.7µF/Co=1µF) Ver

7 Output Noise Voltage [µvrms] NJW4186_5.V Output Noise Voltage vs Output =6.V R1=5kΩ Solid Line LPF:8kHz Dotted Line FLAT Output Noise Voltage [µvrms] NJW4186_5.V Output Noise Voltage vs Output =6.V R1=5kΩ Co=1uF Solid Line LPF:8kHz Dotted Line FLAT Output Current [ma] Output Current [ma] =5.VSetting (R1=5k,Co=2.2µF/Co=1µF) Output Noise Voltage [µvrms] NJW4186_5.V Output Noise Voltage vs Output C =6.V R1=5kΩ C O =2.2uF Solid Line LPF:8kHz Dotted Line FLAT Output Current [ma] Output Noise Voltage [µvrms] NJW4186_5.V Output Noise Voltage vs Output C =6.V R1=5kΩ Solid Line LPF:8kHz Output Current [ma] =5.VSetting (R1=5k / R1=5k, Co=2.2µF) Ver

8 *Input Capacitor C IN Input Capacitor C IN 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 C IN value (refer to conditions of ELECTRIC CHARACTERISTIC) or larger and should connect between GND and as shortest path as possible to avoid the problem. *Output Capacitor C O Output capacitor (C O ) 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 C O 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 C O reduces output noise and ripple output, and also improves output transient response when rapid load change. Therefore, use the recommended C O value (refer to conditions of ELECTRIC CHARACTERISTIC) or larger and should connect between GND and as shortest path as possible for stable operation The recommended capacitance depends on the output voltage rank. Especially, low voltage regulator requires larger C O 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 C O, recommend that have withstand voltage margin against output voltage and superior temperature characteristic Ver

9 *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.v 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 pin- GND NJW4186 SBD V ADJ GND (b) In case of using the electrolysis condenser or insert series resistance NJW4186 V ADJ GND Connecting resistance(2ohrm or more)in series. (in case of ESR of C OUT is low) Ver

10 TYPICAL CHARACERISTICS Output Voltage : [V] NJW4186_5.V Output Voltage vs. Input Voltage R1=5kΩ R2=144kΩ I O =2mA I O =3mA I O =ma I O =5mA Output Voltage : [V] NJW4186_5.V Output Current vs. Output Voltage Ta=15 =6.V R1=5kΩ R2=144kΩ Ta=25 C Ta=-5 C Input Voltage : [V] Output Current : I OUT [ma] Ground Pin Current : I GND [µa] NJW4186DL3_5.V Ground Pin Current vs Output Current =6.V R1=5kΩ R2=144kΩ Quiescent Current :I Q [µa] NJW4186_5.V Quiescent Current vs. Input Voltage Io=mA R1=5kΩ R2=144kΩ Output Current : I OUT [ma] Input Voltage: [V] Ver

11 Output Voltage : [V] NJW4186_5.V Output Voltage vs. Control Voltage =6.V R1=5kΩ R2=144kΩ R C =1kΩ R C =5kΩ R C =Ω Control Current :I CONT [µa] NJW4186_5.V Control Current vs. Control Voltage =6.V R1=5kΩ R2=144kΩ R C =Ω R C =5kΩ R C =1kΩ Control Voltage: V CONT [V] Control Voltage V CONT [V] Load Regulation : V O / I O [mv] NJW4186_5.V Load Regulation vs. Output Current =6.V R1=5kΩ R2=144kΩ Output Current : I OUT [ma] Peak Output Current :I OPEAK [ma] NJW4186_5.V Peak Output Current vs. Input Voltage *.9 R1=5kΩ R2=144kΩ Input Voltage : [V] Dropout Voltage:dV I-O [V] NJW4186_5.V Dropout Voltage vs. Output Current R1=5kΩ R2=144kΩ Output Current :I OUT [ma] Ripple Rejection Ratio :RR [db] NJW4186_5.V Ripple Rejection Ratio vs. Frequency I O =3mA =6V COUT=2.2uF e IN =2mVrms I O =2mA I O =5mA I O =1uA 1 1 1k 1k 1k Frequency :f [Hz] Ver

12 Ripple Rejection Ratio :RR [db] NJW4186_5.V Ripple Rejection Ratio vs. Output Current =6V e IN =2mVrms f=1khz f=1khz 1µ 1µ 1m 1k 1m 1k 1m 1k 1M 1 Output Current :I OUT [A] Equivalent Series Resistance: ESR [Ω] NJW4186_5.V Equivalent Series Resistance vs. Output Current STABLE REGION R1=5kΩ R1=5kΩ R1=5kΩ R1=5kΩ R1=5k R1=5k =6.V C O =2.2uF Output Current : I OUT [ma] Reference Voltage :V ref [V] NJW4186_5.V Reference Voltage vs. =6V R1=5kΩ R2=144kΩ Output Voltage : [V] NJW4186_5.V Output Voltage vs. =6.V R1=5kΩ R2=144kΩ I O =2mA I O =ma I O =5mA I O =3mA Temperature :Ta[ C] 2. NJW4186_5.V Control Voltage vs.temperature 3 NJW4186_5.V Control Current vs. Temperature Control Voltage :V CONT [V] R1=5kΩ R2=144kΩ Control Current :I CONT [µa] =6.V V CONT =1.6V R1=5kΩ R2=144kΩ Ver

13 Peak Output Current I OPEAK [ma] NJW4186_5.V Peak Output Current vs. *.9 R1=5kΩ R2=144kΩ =6V =4V Short Cuircuit Current :I SC [ma] NJW4186_5.V Short Cuircuit Current vs. shorted to GND R1=5kΩ R2=144kΩ =6V =4V Line Regulation : Vo/ [%/V] NJW4186_5.V Line Regulation =6-4V R1=5kΩ R2=144kΩ I OUT =3mA Load Regulation : Vo/ Io[%/mA] NJW4186_5.V Load Regulation vs. =6.V I OUT = - 5mA R1=5kΩ R2=144kΩ Output Voltage : [V] NJW4186_5.V Output Voltage vs. =6V I OUT =2mA R1=5kΩ R2=144kΩ Dropout Voltage:dV I-O [V] NJW4186_5.V Dropout Voltage vs. OUT =3mA R1=5kΩ R2=144kΩ Ver

14 Quiescent Current :I Q [µa] NJW4186_5.V Quiescent Current =6V I OUT =ma R1=5kΩ R2=144kΩ NJW4186_5.V Input Transient Response NJW4186_5.V Load Transient Response Input Voltage Output Current 1 Output Voltage : [V] =6-7V I O =3mA (Ceramic) R1=5kΩ,R2=144kΩ Output Voltage Input Voltage : [V] Output Voltage : [V] Ta=25 C =6.V I OUT =-1mA (Ceramic) R1=5kΩ,R2=144kΩ, Output Voltage Output Current : I OUT [ma] Time : t [msec] Time : t [msec] NJW4186_5.V ON/OFF Transient Response without Load 1 14 NJW4186_5.V ON/OFF Transient Response Output Voltage : [V] Control Voltage Output Voltage =6V I OUT =ma (Ceramic) R1=5kΩ,R2=144kΩ Time : t [sec] Control Voltage : V CONT [V] Output Voltage : [V] Control Voltage Output Voltage =6.V I OUT =3mA (Ceramic) R1=5kΩ,R2=144kΩ Time : t [msec] Control Voltage : V CONT [V] Ver

15 14 NJW4186_5.V ON/OFF Transient Response 1 Output Voltage : [V] Control Voltage Output Voltage =6.V I O =3mA (Ceramic) R1=5kΩ,R2=144kΩ Time : t [msec] Control Voltage : V CONT [V] [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

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