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Onsemi NCV890430MW33 | Demoboard ONSEC-18-035
Automotive 0.6 A 2 MHz 100% Duty Cycle Step-Down Synchronous Regulator
Overview
| Topology | Buck Converter |
| IC revision | Alpha |
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 | λDom typ.(nm) | Emitting Color | λPeak typ.(nm) | IV typ.(mcd) | VF typ.(V) | Chip Technology | 2θ50% typ.(°) | L(µH) | IR(A) | ISAT1(A) | ISAT2(A) | RDC max.(Ω) | fres(MHz) | IRP,40K(A) | ISAT(A) | ISAT,10%(A) | ISAT,30%(A) | Pins | Center pin Ø (Value)(mm) | Plug OD(mm) | Type | Working Voltage(V (DC)) | Packaging | Interface Type | Variant | Gender | Mount | H(mm) | Operation Force(g) | Electrical Life(Cycles) | Actuator Color | Washable | Vaporphase process | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WL-SMCW SMT Mono-color Chip LED Waterclear, 470 nm, Blue | 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 ° | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | PackagingTape and Reel | – | – | – | MountSMT | Height0.7 mm | – | – | – | – | – | |||
| WL-SMCW SMT Mono-color Chip LED Waterclear, 525 nm, Green | 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 ° | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | PackagingTape and Reel | – | – | – | MountSMT | Height0.7 mm | – | – | – | – | – | |||
 | WE-PD2 SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD2 SMT Power Inductor | – | – | – | – | – | – | – | Inductance4.7 µH | Rated Current1.82 A | – | – | DC Resistance0.11 Ω | Self Resonant Frequency50 MHz | Performance Rated Current2.6 A | Saturation Current2.46 A | Saturation Current @ 10%2.9 A | Saturation Current @ 30%3.3 A | – | – | – | – | – | – | – | – | – | MountSMT | Height3.2 mm | – | – | – | – | – | ||||
 | WR-DC Power Jacks, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-DC Power Jacks | – | – | – | – | – | – | – | – | Rated Current5 A | – | – | – | – | – | – | – | – | – | Center pin Ø2 mm | Recommended Plug outer Ø5.5 mm | TypeRight Angled | Working Voltage30 V (DC) | PackagingBag | – | – | – | MountTHT | – | – | – | – | – | – | |||
 | WE-PMCI Power Molded Chip Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PMCI Power Molded Chip Inductor | – | – | – | – | – | – | – | Inductance2.2 µH | Rated Current2 A | Saturation Current 11.2 A | Saturation Current 22.4 A | DC Resistance0.19 Ω | Self Resonant Frequency45 MHz | Performance Rated Current2 A | Saturation Current1.7 A | Saturation Current @ 10%1.2 A | Saturation Current @ 30%2.4 A | Pins2 | – | – | – | – | – | – | – | – | MountSMT | Height1 mm | – | – | – | – | – | ||||
 | WR-USB Mini/Micro Connectors, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-USB Mini/Micro Connectors | – | – | – | – | – | – | – | – | Rated Current1 A | – | – | – | – | – | – | – | – | Pins5 | – | – | TypeHorizontal | Working Voltage30 V (DC) | PackagingTape and Reel | Interface TypeType B | Variantwith Pads & Pegs | GenderReceptacle | MountSMT | – | – | – | – | – | – | |||
 | 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 | – | – | – | – | – | – | – | – | Rated Current0.05 A | – | – | – | – | – | – | – | – | – | – | – | – | – | PackagingTape and Reel | – | – | – | – | Height1.7 mm | Operation Force350 g | Electrical Life200000 Cycles | Actuator ColorBlue | WashableNo | Vaporphase processnot specified |