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Overview
| Topology | Buck Converter |
Description
The NCV890430 is a fixed-frequency Synchronous Buck regulator intended for Automotive, battery-connected applications that operate with up to a 45 V input supply. It is suitable for automotive systems requiring low noise and low shutdown currents that also need to operate at low input voltage close to the output voltage. A reset pin (with adjustable delay) simplifies interfacing with a microcontroller. This part also features an enable input that can either be connected to a low voltage (such as a micro-controller output) or high voltage (such as the battery input), and a synchronization input. The NCV890430 also provides several protection features expected in automotive power supply systems such as current limit, short circuit protection, and thermal shutdown. In addition, the high switching frequency produces low output voltage ripple even when using small inductor values and all-ceramic input output filter capacitors − forming a space-efficient switching regulator solution.
Features
- Internal 550 mΩ P Channel and 300 mΩ N-Channel Power Switches
- Capable of 100% Duty Cycle Operation
- VIN operating range of 3.5 V to 37 V
- Withstands Load Dump to 45 V
- 2 MHz Free-Running Switching Frequency
- Shutdown Current Less than 10 µA
- High Voltage Enable Pin
- Synchonization Input Pin
- Maximum DC Output Current of at least 0.6A
- Fixed Output Voltage (5.0 V, 3.3 V and 2.5 V Versions)
- ± 2% Output Voltage Accuracy
- DFN Package with Wettable Flanks (Pin Edge Plating Per JEDEC MO220)
- NCV Prefix for Automotive Requiring Site and Control Changes
- Pb-Free
Typical applications
- Automotive Infotainment and Instrumentation / Automotive Body Applications / Rear View Camera
- Linear Regulator Replacement
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | Pins | PCB/Cable/Panel | Modularity | Wire Section | λDom typ.(nm) | Emitting Color | λPeak typ.(nm) | λPeak B typ.(nm) | λPeak G typ.(nm) | λPeak R typ.(nm) | λDom B typ.(nm) | λDom G typ.(nm) | λDom R typ.(nm) | ΦV typ.(lm) | IV typ.(mcd) | IV B typ.(mcd) | IV G typ.(mcd) | IV R typ.(mcd) | VF typ.(V) | VF B typ.(V) | VF G typ.(V) | VF R typ.(V) | Chip Technology | 2θ50% typ.(°) | CRI typ. | Size | L(µH) | ISAT(A) | RDC(mΩ) | fres(MHz) | Center pin Ø (Value)(mm) | Plug OD(mm) | Working Voltage(V (AC)) | Packaging | Interface Type | Variant | Gender | Mount | L(mm) | Operating Temperature | H(mm) | Operation Force(g) | Electrical Life(Cycles) | Actuator Color | Washable | Vaporphase process | Z @ 100 MHz(Ω) | Zmax(Ω) | Test Condition Zmax | IR(A) | Z @ 1 GHz(Ω) | Type | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WR-PHD Pin Header - Single, 2, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | Pins2 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Working Voltage250 V (AC) | PackagingBag | – | – | GenderPin Header | MountTHT | Length5.08 mm | Operating Temperature -40 °C up to +105 °C | – | – | – | – | – | – | – | – | – | Rated Current3 A | – | TypeStraight | |||
 | WR-TBL Series 102 - 5.00 mm Horizontal Entry Modular, 2, Wire Protector | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-TBL Series 102 - 5.00 mm Horizontal Entry Modular | Pins2 | PCB/Cable/PanelPCB | ModularityYes | Wire Section 22 to 14 (AWG) 0.75 to 1.5 (mm²) | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Working Voltage250 V (AC) | PackagingBox | – | – | – | MountTHT | Length10 mm | Operating Temperature -40 °C up to +105 °C | Height10 mm | – | – | – | – | – | – | – | – | Rated Current17.5 A | – | TypeHorizontal | |||
 | WR-PHD Pin Header - Single, 3, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | Pins3 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Working Voltage250 V (AC) | PackagingBag | – | – | GenderPin Header | MountTHT | Length7.62 mm | Operating Temperature -40 °C up to +105 °C | – | – | – | – | – | – | – | – | – | Rated Current3 A | – | TypeStraight | |||
 | WR-PHD Pin Header - Single, 4, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | Pins4 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Working Voltage250 V (AC) | PackagingBag | – | – | GenderPin Header | MountTHT | Length10.16 mm | Operating Temperature -40 °C up to +105 °C | – | – | – | – | – | – | – | – | – | Rated Current3 A | – | TypeStraight | |||
 | WR-USB Mini/Micro Connectors, 5, Mini USB 2.0 | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-USB Mini/Micro Connectors | Pins5 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Working Voltage30 V (AC) | PackagingTape and Reel & Mylar | Interface TypeType B | Variantwith Pads & Pegs | GenderReceptacle | MountSMT | – | Operating Temperature -40 °C up to +105 °C | – | – | – | – | – | – | – | – | – | Rated Current1 A | – | TypeHorizontal | |||
 | WE-MPSB EMI Multilayer Power Suppression Bead, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-MPSB EMI Multilayer Power Suppression Bead | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Size0805 | – | – | – | – | – | – | – | – | – | – | – | MountSMT | Length2 mm | Operating Temperature -55 °C up to +125 °C | Height0.9 mm | – | – | – | – | – | Impedance @ 100 MHz320 Ω | Maximum Impedance347 Ω | Maximum Impedance170 MHz | Rated Current2.5 A | Impedance @ 1 GHz108 Ω | TypeHigh Current | ||||
 | WE-LQS SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LQS SMT Power Inductor | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Size2512 | Inductance22 µH | Saturation Current0.55 A | DC Resistance910 mΩ | Self Resonant Frequency22 MHz | – | – | – | – | – | – | – | MountSMT | Length2.5 mm | Operating Temperature -40 °C up to +125 °C | Height1.2 mm | – | – | – | – | – | – | – | – | Rated Current0.45 A | – | – | ||||
| WE-LQS SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LQS SMT Power Inductor | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Size5020 | Inductance4.7 µH | Saturation Current2.7 A | DC Resistance55.9 mΩ | Self Resonant Frequency57 MHz | – | – | – | – | – | – | – | MountSMT | Length5 mm | Operating Temperature -40 °C up to +125 °C | Height2 mm | – | – | – | – | – | – | – | – | Rated Current2.3 A | – | – | ||||
| WE-LQS SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LQS SMT Power Inductor | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Size5020 | Inductance22 µH | Saturation Current1.35 A | DC Resistance225 mΩ | Self Resonant Frequency22 MHz | – | – | – | – | – | – | – | MountSMT | Length5 mm | Operating Temperature -40 °C up to +125 °C | Height2 mm | – | – | – | – | – | – | – | – | Rated Current1.15 A | – | – | ||||
 | WL-SMCW SMT Mono-color Chip LED Waterclear, –, – | Downloads27 files RAY files
| Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear | – | – | – | – | Dominant Wavelength [typ.]625 nm | Emitting ColorRed | Peak Wavelength [typ.]630 nm | – | – | – | – | – | – | – | Luminous Intensity [typ.]250 mcd | – | – | – | Forward Voltage [typ.]2 V | – | – | – | Chip TechnologyAlInGaP | Viewing Angle Phi 0° [typ.]140 ° | – | Size0603 | – | – | – | – | – | – | – | PackagingTape and Reel | – | – | – | MountSMT | Length1.6 mm | Operating Temperature -40 °C up to +85 °C | Height0.7 mm | – | – | – | – | – | – | – | – | – | – | – | |||
| WL-SMCW SMT Mono-color Chip LED Waterclear, –, – | Downloads27 files RAY files
| Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear | – | – | – | – | Dominant Wavelength [typ.]590 nm | Emitting ColorYellow | Peak Wavelength [typ.]595 nm | – | – | – | – | – | – | – | Luminous Intensity [typ.]120 mcd | – | – | – | Forward Voltage [typ.]2 V | – | – | – | Chip TechnologyAlInGaP | Viewing Angle Phi 0° [typ.]140 ° | – | Size0603 | – | – | – | – | – | – | – | PackagingTape and Reel | – | – | – | MountSMT | Length1.6 mm | Operating Temperature -40 °C up to +85 °C | Height0.7 mm | – | – | – | – | – | – | – | – | – | – | – | |||
| WL-SMCW SMT Mono-color Chip LED Waterclear, –, – | Downloads27 files RAY files
| Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear | – | – | – | – | Dominant Wavelength [typ.]525 nm | Emitting ColorGreen | Peak Wavelength [typ.]515 nm | – | – | – | – | – | – | – | Luminous Intensity [typ.]430 mcd | – | – | – | Forward Voltage [typ.]3.2 V | – | – | – | Chip TechnologyInGaN | Viewing Angle Phi 0° [typ.]140 ° | – | Size0603 | – | – | – | – | – | – | – | PackagingTape and Reel | – | – | – | MountSMT | Length1.6 mm | Operating Temperature -40 °C up to +85 °C | Height0.7 mm | – | – | – | – | – | – | – | – | – | – | – | |||
| WL-SMCW SMT Mono-color Chip LED Waterclear, –, – | Downloads28 files RAY files
| Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear | – | – | – | – | Dominant Wavelength [typ.]470 nm | Emitting ColorBlue | Peak Wavelength [typ.]465 nm | – | – | – | – | – | – | – | Luminous Intensity [typ.]145 mcd | – | – | – | Forward Voltage [typ.]3.2 V | – | – | – | Chip TechnologyInGaN | Viewing Angle Phi 0° [typ.]140 ° | – | Size0603 | – | – | – | – | – | – | – | PackagingTape and Reel | – | – | – | MountSMT | Length1.6 mm | Operating Temperature -40 °C up to +85 °C | Height0.7 mm | – | – | – | – | – | – | – | – | – | – | – | |||
 | WL-SWTC SMT White Top view Ceramic LED, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SWTC SMT White Top view Ceramic LED | – | – | – | – | – | Emitting ColorMoonlight | – | – | – | – | – | – | – | Luminous Flux [typ.]121 lm | – | – | – | – | Forward Voltage [typ.]3.2 V | – | – | – | Chip TechnologyInGaN | Viewing Angle Phi 0° [typ.]120 ° | Color Rendering Index [typ.]75 | Size3535 | – | – | – | – | – | – | – | PackagingTape and Reel | – | – | – | MountSMT | Length3.45 mm | Operating Temperature -40 °C up to +125 °C | Height0.71 mm | – | – | – | – | – | – | – | – | – | – | – | ||||
 | WR-DC Power Jacks, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-DC Power Jacks | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Center pin Ø2 mm | Recommended Plug outer Ø5.5 mm | Working Voltage30 V (AC) | PackagingBag | – | – | – | MountTHT | – | Operating Temperature -40 °C up to +85 °C | – | – | – | – | – | – | – | – | – | Rated Current5 A | – | TypeRight Angled | |||
 | WS-TASV J-Bend SMT Tact Switch 3.5x2.9 mm, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWS-TASV J-Bend SMT Tact Switch 3.5x2.9 mm | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | PackagingTape and Reel | – | – | – | – | – | Operating Temperature -40 °C up to +85 °C | Height1.7 mm | Operation Force350 g | Electrical Life200000 Cycles | Actuator ColorBlue | WashableNo | Vaporphase processnot specified | – | – | – | Rated Current0.05 A | – | – | |||
 | WL-SFTW SMT Full-color TOP LED Waterclear, –, – | Simulation– | Downloads26 files RAY files
| Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SFTW SMT Full-color TOP LED Waterclear | – | – | – | – | – | Emitting ColorRed & Green & Blue | – | Peak Wavelength (Blue) [typ.]465 nm | Peak Wavelength (Green) [typ.]515 nm | Peak Wavelength (Red) [typ.]635 nm | Dominant Wavelength (Blue) [typ.]470 nm | Dominant Wavelength (Green) [typ.]520 nm | Dominant Wavelength (Red) [typ.]625 nm | – | – | Luminous Intensity (Blue) [typ.]400 mcd | Luminous Intensity (Green) [typ.]1700 mcd | Luminous Intensity (Red) [typ.]750 mcd | – | Forward Voltage (Blue) [typ.]3.2 V | Forward Voltage (Green) [typ.]3.2 V | Forward Voltage (Red) [typ.]2 V | Chip TechnologyAlInGaP + InGaN | Viewing Angle Phi 0° [typ.]120 ° | – | Size3528 | – | – | – | – | – | – | – | PackagingTape and Reel | – | – | – | MountSMT | – | Operating Temperature -40 °C up to +85 °C | – | – | – | – | – | – | – | – | – | – | – | – |