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onsemi NCV890130MWTXG
- Part No.:
- NCV890130MWTXG
- Manufacturer:
- onsemi
- Package:
- 8-VDFN Exposed Pad
- Datasheet:
-
NCV890130MWTXG.pdf
- Description:
- IC REG BUCK ADJ 1.2A 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,891
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Product details
Overview
NCV890130MWTXG from onsemi is an automotive-grade, monolithic buck switching regulator with internal N-channel power switch, 2 MHz fixed switching frequency, 4.5 V to 36 V input range, and 1.2 A output capability. It delivers stable 3.3 V or 5 V outputs for driver information systems while operating above the AM band to avoid EMI filters. Designed for low-noise, space-constrained automotive applications.
For engineers reviewing the NCV890130MWTXG datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q100 qualification, wettable-flank DFN8 package, VIN frequency foldback behavior, ±1.75% output voltage tolerance, and integrated thermal shutdown with hiccup-mode short-circuit protection.
Technical Context
The NCV890130MWTXG employs current-mode PWM control with internal slope compensation to prevent subharmonic oscillation at duty cycles >50%. Its oscillator maintains 2 MHz operation up to 18 V input, then folds back to ~500 kHz above 18.4 V to sustain regulation under load dump conditions.
It integrates a 3.3 V gate driver (DRV) with POR monitoring, bootstrap (BST) circuitry requiring external CBST, and a transconductance error amplifier (gm = 0.6–1.0 mS) supporting type-II compensation via COMP pin. Output voltage is set via resistive divider on FB pin with 0.8 V reference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V to 36 V - supports cold-crank (4.5 V) and load-dump (up to 45 V transient) in automotive battery systems. |
| Switching Frequency | 2 MHz (typ) - enables compact magnetics and ceramic output filtering; folds back to 500 kHz above 18.4 V input. |
| Output Current | 1.2 A continuous - limited by 1.4 A min cycle-by-cycle peak current threshold and thermal design in DFN8 package. |
| Output Voltage Accuracy | ±1.75% - ensures stable rail generation for sensitive infotainment and vision system ICs without post-regulation. |
| Quiescent Current | 3.0 mA enabled / 10 µA shutdown - meets automotive always-on module sleep-mode requirements. |
| Protection Features | UVLO (4.1–4.5 V start), thermal shutdown (150 °C activation), short-circuit foldback, hiccup mode - eliminates need for external supervision circuits. |
| Package | DFN8 3×3 mm, wettable flanks - supports automated optical inspection (AOI) and improves solder joint reliability in automotive PCBs. |
Pinout & Package
NCV890130MWTXG uses a thermally enhanced 3×3 mm DFN8 package (Case 506BY) with exposed pad electrically connected to GND. The wettable flanks enable reliable solder-joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Primary input supply | Accepts 4.5–36 V battery input; requires local ceramic input capacitor for high-frequency ripple suppression. |
| DRV | Gate driver supply output | Provides regulated 3.3 V to charge external bootstrap capacitor; monitored for UVLO reset. |
| GND | Power and signal ground | Common return for input, output, and exposed pad; must be low-impedance thermal path to PCB ground plane. |
| EN | Enable control input | TTL-compatible; direct battery tie possible; pulls regulator into <10 µA shutdown when grounded. |
| COMP | Error amplifier output | Connects to external RCOMP/CCOMP network for loop compensation and transient response tuning. |
| FB | Feedback voltage sense | Monitors output via resistor divider; detects precharged output (VSSEN = 20–50 mV) before soft-start initiation. |
| BST | Bootstrap supply input | Connects to external bootstrap capacitor; supplies gate drive voltage >VIN for low RDS(on) operation. |
| SW | Power switch node | Connects to inductor and freewheeling diode cathode; carries high dI/dt switching current. |
Key Features
| Feature | Design Value |
|---|---|
| Internal N-channel power switch | RDS(on) = 650 mΩ max - eliminates external MOSFET and reduces BOM count and layout area. |
| 2 MHz free-running oscillator | Enables use of ≤4.7 µH inductors and all-ceramic 20 µF output filter - cuts solution size by >40% vs. 500 kHz regulators. |
| Wettable flanks DFN8 | Supports AOI of solder joints on bottom terminals - critical for zero-defect automotive manufacturing compliance. |
| Frequency foldback at high VIN | Switches from 2 MHz to 500 kHz above 18.4 V - sustains regulation during 24 V system transients without overcurrent trip. |
| 1.4 ms internal soft-start | Prevents inrush current and output overshoot during power-up or fault recovery - eliminates need for external timing components. |
| AEC-Q100 Grade 1 qualified | Rated for −40 °C to +125 °C ambient (TJ up to +150 °C) - certified for engine bay and dashboard mounting locations. |
Applications
| Audio | Infotainment |
|---|---|
Use Scenario: Powering Class D audio amplifiers and DSPs in vehicle head units with minimal EMI impact on AM/FM reception. IC Role / Device Role / Timing Role: Primary 5 V/3.3 V DC-DC converter delivering clean, low-ripple power with 2 MHz switching placed above AM band. Use Value: Eliminates bulky LC filters required by lower-frequency regulators, reducing board area by ≥30% and enabling slim head-unit designs. | Use Scenario: Supplying display controllers, touch processors, and USB hub ICs in central infotainment displays. IC Role / Device Role / Timing Role: High-efficiency buck regulator powering multiple 3.3 V rails with tight load-transient response via COMP-loop tuning. Use Value: Maintains stable voltage during rapid CPU/GPU load changes (e.g., map rendering), preventing display flicker or reset events. |
| Safety - Vision Systems | Instrumentation |
Use Scenario: Powering CMOS image sensors and ISP processors in rear-view and surround-view camera modules. IC Role / Device Role / Timing Role: Low-noise 3.3 V supply with <10 mVpp ripple (using ceramic COUT) to prevent sensor pattern noise. Use Value: Meets ISO 26262 ASIL-B power integrity requirements without additional LDO post-regulation. | Use Scenario: Delivering regulated 3.3 V to instrument cluster microcontrollers, CAN transceivers, and TFT LCD bias supplies. IC Role / Device Role / Timing Role: Automotive-qualified buck converter with EN pin directly tied to ignition-switched battery for controlled startup/shutdown sequencing. Use Value: Supports "always-on" memory retention and fast wake-from-sleep (<500 µs) via logic-level EN control and low IqSD. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ4312-AEC1 | 40 V max input, 2.5 A output, 2.2 MHz switching, QFN-13 package - higher current but larger footprint and no wettable flanks. | Preferred for 5 A+ ADAS ECUs; less suitable for space-constrained clusters due to 4×4 mm QFN size. | Select when >1.2 A output or higher VIN margin (40 V) is required; verify thermal performance in same PCB area. |
| TPS543320RTER | 18 V max input, 3 A output, 2.2 MHz, integrated MOSFETs, 3×3 mm QFN - lacks AEC-Q100 and load-dump tolerance. | Targeted at industrial/commercial power modules; not qualified for automotive front-end use. | Only consider for non-automotive derivatives; cannot replace NCV890130MWTXG in AEC-Q100-compliant designs. |
Compared with MPQ4312-AEC1 and TPS543320RTER, the NCV890130MWTXG offers optimal balance of AEC-Q100 compliance, wettable-flank manufacturability, and 36 V load-dump resilience in a 3×3 mm DFN - making it the preferred choice for cost-sensitive, space-constrained automotive subsystems where 1.2 A output suffices.
Availability
NCV890130MWTXG is available at Aetrix Electronics and suitable for automotive infotainment, ADAS vision systems, and instrument cluster applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for NCV890130MWTXG includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
onsemi is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCV890130MWTXG belongs to onsemi's automotive power management portfolio, engineered specifically for battery-connected DC-DC conversion in driver information and safety-critical systems where AEC-Q100 reliability and EMI robustness are mandatory.
FAQ
What is the maximum input voltage the NCV890130MWTXG can withstand during load dump?
The NCV890130MWTXG withstands load dump transients up to 45 V, with overvoltage shutdown activating at 32.4–36 V to protect internal circuitry. This exceeds ISO 7637-2 Pulse 5a requirements for 12 V automotive systems, ensuring robust operation during alternator regulation faults.
Does the NCV890130MWTXG require an external bootstrap capacitor?
Yes, the NCV890130MWTXG requires an external ceramic bootstrap capacitor (CBST) connected between BST and SW pins. This capacitor supplies gate drive voltage >VIN to the internal N-channel switch, enabling low RDS(on) and high efficiency. Typical value is 0.1 µF X7R.
How does the NCV890130MWTXG handle short-circuit conditions?
Under short-circuit, the NCV890130MWTXG first reduces switching frequency via foldback (to ~200–600 kHz), then enters hiccup mode (32 kHz burst) if current remains excessive. This limits power dissipation and enables automatic recovery when fault clears - no latch-off or manual reset needed.
What is the minimum output load required for stable operation of the NCV890130MWTXG?
The NCV890130MWTXG requires a minimum output load to maintain bootstrap capacitor charge. For 3.3 V output at 13.2 V input, minimum load is ~4.2 mA; for 5 V output at same input, it is ~6.2 mA. Light-load skip mode may cause bootstrap collapse below these thresholds.
Can the NCV890130MWTXG be used with an adjustable output voltage below 3.3 V?
Yes, the NCV890130MWTXG supports adjustable output down to 0.8 V using the FB pin and external resistor divider. Its 0.8 V reference voltage and ±1.75% tolerance allow precise setting of 1.8 V, 2.5 V, or 3.3 V rails - verified across −40 °C to +150 °C junction temperature.
NCV890130MWTXG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-VDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 34V
- Current - Output:
- 1.2A
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (3x3)
NCV890130MWTXG FAQ
1.How can I place an order for NCV890130MWTXG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV890130MWTXG on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for NCV890130MWTXG reliable?
The price and inventory of NCV890130MWTXG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV890130MWTXG is usually 5 days.
3.What payment methods are accepted for NCV890130MWTXG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV890130MWTXG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV890130MWTXG?
NCV890130MWTXG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV890130MWTXG order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for NCV890130MWTXG?
For technical support, including NCV890130MWTXG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV890130MWTXG requirements.
6.How does Aetrix verify that NCV890130MWTXG is sourced from the original manufacturer or authorized distributors?
All NCV890130MWTXG products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that NCV890130MWTXG meets industry standards.
7.What is the process for return or replacement of NCV890130MWTXG?
All NCV890130MWTXG units undergo pre-shipment inspection (PSI). If there is an issue with NCV890130MWTXG, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The NCV890130MWTXG part is unused and in its original packaging.
Return procedure for NCV890130MWTXG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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