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onsemi NCV896530MWTXG
- Part No.:
- NCV896530MWTXG
- Manufacturer:
- onsemi
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
NCV896530MWTXG.pdf
- Description:
- IC REG BUCK ADJ 1.6A DL 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,101
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Product details
Overview
NCV896530MWTXG from onsemi is a dual-channel synchronous buck converter IC for automotive driver information systems, delivering up to 1 A per channel with adjustable output (0.9 V–3.3 V), 2.1 MHz switching frequency, and 180° out-of-phase operation to reduce input rail current ripple. It integrates soft-start, hiccup-mode current limiting, thermal shutdown, and external clock synchronization.
For engineers reviewing the NCV896530MWTXG datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q100 qualification, wettable-flank DFN10 package, dual independent enable control (EN1/EN2), and POR open-drain output for system-level power sequencing in infotainment and vision systems.
Technical Context
The NCV896530MWTXG implements two independent PWM-controlled synchronous buck regulators sharing a single 2.1 MHz oscillator with 180° phase offset. Each channel uses internal high-side (500 mΩ typ) and low-side (450 mΩ typ) MOSFETs, with feedback referenced to a 0.6 V internal reference and ±1% accuracy at 25°C.
It supports low-dropout operation via 100% duty cycle capability, features auto-synchronization to external clocks (1.8–2.7 MHz), and includes integrated protection: thermal shutdown (150°C trip), hiccup-mode overcurrent (2.0 A peak), and under-voltage lockout (2.4 V nominal with 100 mV hysteresis).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7 V to 5.5 V - supports direct connection to automotive 3.3 V or 5 V rails without pre-regulation. |
| Switching Frequency | 2.1 MHz (typ) - operates above AM band to avoid EMI interference in audio-sensitive applications. |
| Output Current | Up to 1600 mA total (1 A per channel) - enables dual-rail power delivery for SoC + peripheral subsystems. |
| Feedback Reference | 0.6 V ±1% - sets output voltage via external resistor divider; enables precise 0.9–3.3 V adjustment. |
| Thermal Shutdown | 150°C trip with 5°C–20°C hysteresis - ensures safe recovery after overheating without latch-up. |
| Soft-Start Time | 400–1000 µs - limits inrush current during power-up to prevent input rail sag or capacitor stress. |
| Sync Input Range | 1.8–2.7 MHz - allows synchronization to system master clock for deterministic EMI management. |
Pinout & Package
The NCV896530MWTXG is housed in a 3 mm × 3 mm, 10-pin DFN package (Case 485C) with wettable flanks for automated optical inspection (AOI) and enhanced solder joint reliability in automotive PCB assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FB1 / FB2 | Analog feedback input | Connects to resistor divider from VOUT1/VOUT2; sets regulation point via 0.6 V reference. |
| EN1 / EN2 | Digital enable input | Active-HIGH logic control (≥1.2 V) for independent channel startup/shutdown sequencing. |
| SYNC | Digital sync input | Accepts external clock (1.8–2.7 MHz); when unused, must be tied to GND to prevent floating. |
| VIN | Main power input | Supplies analog/digital blocks and high-side FETs; requires local 10 µF ceramic decoupling. |
| SW1 / SW2 | Power switch node | Drives external inductors; high di/dt node requiring tight layout and ground plane coupling. |
| GND | Analog ground reference | Reference for error amplifiers and control logic; must connect to system ground plane. |
| POR | Open-drain reset output | Asserts LOW if either output falls below 93% of target; requires external ~500 kΩ pull-up. |
| Exposed Pad | Power ground | Thermal and electrical ground for low-side FETs; must be soldered to PCB ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Eliminates external Schottky diodes, reducing conduction loss and improving efficiency by >5% at 1 A load. |
| 180° out-of-phase switching | Cuts input capacitor RMS current by ~30%, enabling smaller 10 µF ceramic input capacitors. |
| AEC-Q100 Grade 1 qualified | Rated for −40°C to +125°C junction temperature - validated for under-hood and dashboard environments. |
| Wettable flank DFN | Enables AOI-compatible solder joint inspection - critical for zero-defect automotive manufacturing. |
| Independent enable pins (EN1/EN2) | Allows staggered power-up of processor core and I/O rails to manage system-level inrush current. |
Applications
| Audio Power Supply | Infotainment Head Unit |
|---|---|
Use Scenario: Powers digital signal processor (DSP) and Class D amplifier in automotive audio modules. IC Role / Device Role / Timing Role: Dual-output buck regulator supplying 1.2 V DSP core and 3.3 V I/O rails with tight transient response. Use Value: 2.1 MHz switching avoids audible noise in speaker outputs; POR ensures clean boot sequence before audio initialization. | Use Scenario: Supplies application processor, display interface, and touch controller in central infotainment units. IC Role / Device Role / Timing Role: Primary DC-DC source delivering regulated 1.1 V and 1.8 V rails from 5 V main supply. Use Value: Independent EN1/EN2 enables controlled power sequencing; 180° phase shift minimizes EMI impact on touchscreen sensitivity. |
| Vision System Camera Module | Digital Instrument Cluster |
Use Scenario: Powers image sensor, ISP, and MIPI serializer in rear-view or surround-view camera ECUs. IC Role / Device Role / Timing Role: Dual buck converter generating 1.2 V sensor core and 2.8 V analog front-end voltages. Use Value: AEC-Q100 qualification ensures reliability under vibration and thermal cycling; SYNC pin aligns switching to system clock to suppress video artifacts. | Use Scenario: Supplies microcontroller, TFT LCD bias, and CAN transceiver in digital instrument clusters. IC Role / Device Role / Timing Role: Provides 3.3 V MCU rail and 5 V display backlight driver supply from vehicle battery via 5 V intermediate rail. Use Value: Thermal shutdown (150°C) protects against enclosed dashboard heat buildup; POR coordinates cluster boot with vehicle ignition state. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ4332GQ-A | 2.2 MHz fixed frequency, 2 A per channel, no POR output, QFN-16 package | Lacks power-on reset signaling and automotive qualification; suited for industrial rather than safety-critical automotive use | Select when higher per-channel current and smaller solution size outweigh need for POR and AEC-Q100 compliance. |
| TPS650361RGER | 3.2 MHz, 1.2 A per channel, integrated LDOs, 24-pin QFN, no SYNC pin | Includes auxiliary LDOs but lacks external clock synchronization and wettable flanks | Choose when system requires mixed DC-DC + LDO power tree and EMI synchronization is not required. |
Compared with MPQ4332GQ-A and TPS650361RGER, the NCV896530MWTXG uniquely combines AEC-Q100 Grade 1 rating, POR signaling, wettable-flank DFN packaging, and 180° out-of-phase operation - making it optimal for cost-sensitive, space-constrained automotive infotainment and vision systems requiring robust power sequencing and EMI control.
Availability
NCV896530MWTXG is available at Aetrix Electronics and suitable for automotive infotainment, vision systems, and digital instrument clusters requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant power management.
Supply support for NCV896530MWTXG 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 focused on energy-efficient electronics, delivering silicon solutions for automotive, industrial, cloud, and IoT applications with emphasis on functional safety and reliability.
The NCV896530MWTXG belongs to onsemi's automotive-grade power management IC portfolio, designed specifically for driver information systems where compact size, EMI resilience, and ASIL-ready features are essential.
FAQ
What is the maximum total output current supported by the NCV896530MWTXG?
The NCV896530MWTXG supports up to 1600 mA total output current, with each channel capable of delivering up to 1000 mA continuously. This is confirmed in the datasheet under "Sources up to 1600 mA Total and 1 A Per Channel" and verified by the 2.0 A peak current limit specification. The device maintains regulation across its full output voltage range (0.9 V–3.3 V) within this current capability.
Does the NCV896530MWTXG require external compensation components?
No, the NCV896530MWTXG uses internal compensation and does not require external compensation components. Its control loop is optimized for standard 2.2 µH inductors and 10 µF ceramic output capacitors, as shown in Figure 1 of the datasheet. Stability is maintained across the full operating range without user-adjustable compensation networks.
How does the POR (Power-On Reset) function work on the NCV896530MWTXG?
The POR pin on the NCV896530MWTXG is an open-drain output that pulls LOW when either output voltage falls below 93% of its nominal value. It remains LOW until both regulated outputs stabilize within specification. A pull-up resistor (~500 kΩ) must be connected to VIN or a valid output rail. This behavior is explicitly defined in the "POWER ON RESET" section of the Electrical Characteristics table.
Is the NCV896530MWTXG pin-compatible with other devices in the NCV8965xx family?
No, the NCV896530MWTXG is not pin-compatible with other variants such as NCV896531 or NCV896532. While all share the same DFN10 package and pinout, the NCV896530MWTXG has unique internal configuration - including fixed 2.1 MHz operation and specific soft-start timing - and is marked as "Not for new designs" in the official ordering table, indicating functional divergence from newer revisions.
What thermal management considerations apply to the NCV896530MWTXG in automotive environments?
The NCV896530MWTXG features thermal shutdown at 150°C with 5–20°C hysteresis and a junction temperature rating of −40°C to +150°C. Its 40°C/W junction-to-ambient thermal resistance (on 1 sq. in. 4-layer PCB) requires adequate copper pour under the exposed pad. In automotive dashboard applications, derating is recommended above 105°C ambient to maintain reliability, per the datasheet's TJ specification and thermal characterization curves.
NCV896530MWTXG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 2
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.9V
- Voltage - Output (Max):
- 3.3V
- Current - Output:
- 1.6A
- Frequency - Switching:
- 2.1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (3x3)
NCV896530MWTXG FAQ
1.How can I place an order for NCV896530MWTXG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV896530MWTXG 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 NCV896530MWTXG reliable?
The price and inventory of NCV896530MWTXG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV896530MWTXG is usually 5 days.
3.What payment methods are accepted for NCV896530MWTXG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV896530MWTXG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV896530MWTXG?
NCV896530MWTXG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV896530MWTXG 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 NCV896530MWTXG?
For technical support, including NCV896530MWTXG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV896530MWTXG requirements.
6.How does Aetrix verify that NCV896530MWTXG is sourced from the original manufacturer or authorized distributors?
All NCV896530MWTXG 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 NCV896530MWTXG meets industry standards.
7.What is the process for return or replacement of NCV896530MWTXG?
All NCV896530MWTXG units undergo pre-shipment inspection (PSI). If there is an issue with NCV896530MWTXG, 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 NCV896530MWTXG part is unused and in its original packaging.
Return procedure for NCV896530MWTXG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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