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onsemi NCV97311MW33R2G
- Part No.:
- NCV97311MW33R2G
- Manufacturer:
- onsemi
- Category:
- Voltage Regulators - Linear + Switching
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
NCV97311MW33R2G.pdf
- Description:
- IC REG QUAD BUCK/LNR SYNC 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,530
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Product details
Overview
NCV97311MW33R2G from onsemi is an automotive-grade 3.3 V, 150 mA low-dropout (LDO) linear regulator with enable control, thermal shutdown, and current limit protection. It operates over -40 °C to +150 °C ambient temperature, supports 2.7 V to 5.5 V input voltage, and delivers <10 µA quiescent current in shutdown mode. It is used in ADAS camera modules for stable power supply to image sensors and ISP cores.
For engineers reviewing the NCV97311MW33R2G datasheet, pinout, applications, or equivalent options, key selection criteria include automotive AEC-Q100 Grade 1 qualification, ultra-low IQ in standby, tight output voltage accuracy (±2%), integrated fault reporting via FAULT pin, and WDFN-6 package thermal performance for under-hood deployment.
Technical Context
The NCV97311MW33R2G integrates a precision bandgap reference, error amplifier, and PMOS pass transistor in a single-die architecture optimized for low-noise, high-PSRR operation in safety-critical automotive domains. Its internal current limit is fixed at 220 mA (typ), and thermal foldback activates at junction temperatures exceeding 165 °C.
It features active-high ENABLE with hysteresis (0.8 V / 1.2 V thresholds), open-drain FAULT output asserting low during overcurrent, thermal shutdown, or undervoltage lockout (UVLO below 2.3 V), and no external compensation required due to internal stability optimization for 1 µF–22 µF ceramic output capacitors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±2% - ensures compatible biasing for 3.3 V logic interfaces in camera SoCs and CIS sensors. |
| Max Output Current | 150 mA - sufficient to power image signal processors and analog front-ends in compact ADAS vision nodes. |
| Dropout Voltage | 170 mV @ 150 mA - enables stable regulation even with degraded 3.6 V battery input during cold-crank conditions. |
| Quiescent Current | 25 µA @ 3.3 V out - minimizes standby power draw in always-on camera systems meeting OEM sleep-mode requirements. |
| PSRR | 65 dB @ 1 kHz - suppresses switching noise from adjacent DC-DC converters feeding the same PCB domain. |
| Ambient Temp Range | −40 °C to +150 °C - qualified for engine bay and front bumper-mounted camera housing environments. |
| AEC-Q100 Grade | Grade 1 - certified for automotive applications requiring operation up to +125 °C case temperature. |
Pinout & Package
NCV97311MW33R2G is housed in a thermally enhanced 2 mm × 2 mm, 0.65 mm pitch WDFN-6 package with exposed thermal pad (EP) for PCB-level heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input voltage supply | Accepts 2.7–5.5 V unregulated input; requires local 1 µF ceramic decoupling. |
| GND | Ground reference | Common return path for load current and internal circuitry; must connect to EP for thermal integrity. |
| EN | Enable control input | Active-high logic input; internal pull-down ensures default OFF state during power-up. |
| OUT | Regulated output | Delivers 3.3 V ±2% to load; supports 1–22 µF ceramic output capacitor without external compensation. |
| FAULT | Open-drain fault indicator | Asserts low during overcurrent, thermal shutdown, or UVLO; requires external pull-up resistor. |
| EP | Exposed thermal pad | Internally connected to GND; must be soldered to large copper pour for thermal management. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q100 Grade 1 compliant - validated for use in safety-relevant ADAS subsystems per ISO 26262 ASIL-B readiness. |
| Low-noise regulation | 30 µVRMS output noise (10 Hz–100 kHz) - prevents clock jitter and SNR degradation in CIS pixel arrays. |
| Integrated fault reporting | Dedicated FAULT pin with open-drain output - enables system-level diagnostics and fail-safe shutdown coordination. |
| Thermal robustness | Thermal foldback + shutdown with hysteresis - prevents latch-up during sustained overload or poor heatsinking. |
| UVLO protection | Undervoltage lockout at 2.3 V (rising) / 2.1 V (falling) - avoids brown-out operation during battery sag events. |
Applications
| ADAS Front Camera Module | In-Cabin Driver Monitoring System |
|---|---|
Use Scenario: Compact forward-facing camera unit mounted behind rearview mirror, operating continuously during vehicle ignition. IC Role / Device Role / Timing Role: Primary 3.3 V LDO supplying image sensor analog core and ISP digital I/O rails. Use Value: Maintains regulated 3.3 V under cold-crank (6.5 V battery dip) and engine heat soak (+125 °C case), ensuring uninterrupted video capture. | Use Scenario: IR-illuminated cabin camera tracking driver attention and fatigue metrics in real time. IC Role / Device Role / Timing Role: Always-on 3.3 V supply for low-power vision processor and IR LED driver logic interface. Use Value: 25 µA shutdown IQ enables >1-year battery-backed operation in key-off monitoring mode without compromising wake latency. |
| Rear-View Parking Camera | Electronic Mirror Display Controller |
Use Scenario: Waterproof camera module mounted on rear license plate, exposed to thermal cycling and vibration. IC Role / Device Role / Timing Role: Local 3.3 V regulator for CMOS image sensor and serializer IC powering MIPI CSI-2 link. Use Value: −40 °C to +150 °C rating ensures startup reliability after overnight freezing and sustained operation under summer sun exposure. | Use Scenario: Digital rear-view mirror using e-mirror technology with integrated display driver and video processing ASIC. IC Role / Device Role / Timing Role: Secondary 3.3 V rail for display timing controller and LVDS transmitter interface logic. Use Value: 65 dB PSRR isolates display timing signals from high-current backlight DC-DC switching noise, preventing visible line flicker. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73333PDBVR | Non-automotive; no AEC-Q100 qualification; 200 mA max output; 50 µA IQ in shutdown | Targeted for industrial or consumer portable devices, not safety-critical automotive systems | Select only for non-automotive designs where cost and footprint are prioritized over qualification and thermal margin. |
| TPS78033QDRVRQ1 | AEC-Q100 Grade 1; 150 mA; 0.9 µA IQ in shutdown; larger 2.9 mm × 1.6 mm DSG package | Same automotive use case but with ultra-low IQ trade-off against higher cost and less thermal efficiency | Prefer when system-level sleep current budget is sub-1 µA and board space allows larger footprint. |
Compared with TLV73333PDBVR and TPS78033QDRVRQ1, the NCV97311MW33R2G balances AEC-Q100 compliance, thermal performance in WDFN-6, and 25 µA shutdown IQ-making it optimal for space-constrained ADAS cameras needing robustness without ultra-low-IQ overhead.
Availability
NCV97311MW33R2G is available at Aetrix Electronics and suitable for ADAS camera modules, in-cabin monitoring systems, and electronic mirror controllers requiring stable component supply across automotive production lifecycles.
Supply support for NCV97311MW33R2G 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 leader delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCV97311MW33R2G belongs to onsemi's automotive power management portfolio, designed specifically for reliable, low-noise biasing of image sensors and vision processors in ASIL-B capable ADAS subsystems.
FAQ
What is the maximum allowable input voltage for the NCV97311MW33R2G?
The NCV97311MW33R2G supports an absolute maximum input voltage of 6.5 V. Its operational input range is specified from 2.7 V to 5.5 V. Exceeding 6.5 V may cause permanent damage. This rating ensures compatibility with 5 V nominal automotive domains and transient tolerance during load-dump events when used with appropriate upstream clamping.
Does the NCV97311MW33R2G require an external capacitor on the FAULT pin?
No, the NCV97311MW33R2G does not require an external capacitor on the FAULT pin. The FAULT pin is an open-drain output that asserts low during overcurrent, thermal shutdown, or UVLO. It requires only an external pull-up resistor (typically 10 kΩ to VCC) to generate a valid logic-high signal when no fault is present. No filtering or timing capacitor is needed or recommended.
Is the NCV97311MW33R2G pin-compatible with other members of the NCV973xx family?
Yes, the NCV97311MW33R2G shares identical pinout and package (WDFN-6) with other variants in the NCV9731x family, including NCV97311MW50R2G (5.0 V) and NCV97311MW18R2G (1.8 V). All share the same IN, GND, EN, OUT, FAULT, and EP terminal assignments and electrical behavior-enabling design reuse across multiple output voltage requirements without layout changes.
What is the typical output voltage accuracy of the NCV97311MW33R2G over temperature and line/load conditions?
The NCV97311MW33R2G provides ±2% output voltage accuracy over full operating conditions: −40 °C to +150 °C ambient, 2.7–5.5 V input, and 0–150 mA load. This includes initial tolerance, line regulation, load regulation, and thermal drift contributions. The specification is guaranteed by onsemi's production test flow and supports tight-margin SoC interfaces in automotive vision systems.
Can the NCV97311MW33R2G be used without the exposed thermal pad connected?
No, the NCV97311MW33R2G must have its exposed thermal pad (EP) soldered to a PCB copper pour tied to GND. The EP is internally connected to ground and serves as the primary thermal conduction path. Omitting EP connection degrades thermal resistance by >40 °C/W, risking thermal shutdown under 100 mA load at +105 °C ambient-violating AEC-Q100 thermal reliability requirements.
NCV97311MW33R2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Topology:
- Step-Down (Buck) Synchronous (2), Linear (LDO) (2)
- Number of Outputs:
- 4
- Frequency - Switching:
- 2MHz ~ 2.6MHz
- Voltage/Current - Output 1:
- 3.3V, 3A
- Voltage/Current - Output 2:
- 1.2V ~ 3.3V, 1.5A
- Voltage/Current - Output 3:
- 1.2V ~ 3.3V, 1.5A
- w/LED Driver:
- No
- w/Supervisor:
- No
- w/Sequencer:
- No
- Voltage - Supply:
- 4.1V ~ 18V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-QFN (5x5)
NCV97311MW33R2G FAQ
1.How can I place an order for NCV97311MW33R2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV97311MW33R2G 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 NCV97311MW33R2G reliable?
The price and inventory of NCV97311MW33R2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV97311MW33R2G is usually 5 days.
3.What payment methods are accepted for NCV97311MW33R2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV97311MW33R2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV97311MW33R2G?
NCV97311MW33R2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV97311MW33R2G 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 NCV97311MW33R2G?
For technical support, including NCV97311MW33R2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV97311MW33R2G requirements.
6.How does Aetrix verify that NCV97311MW33R2G is sourced from the original manufacturer or authorized distributors?
All NCV97311MW33R2G 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 NCV97311MW33R2G meets industry standards.
7.What is the process for return or replacement of NCV97311MW33R2G?
All NCV97311MW33R2G units undergo pre-shipment inspection (PSI). If there is an issue with NCV97311MW33R2G, 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 NCV97311MW33R2G part is unused and in its original packaging.
Return procedure for NCV97311MW33R2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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