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onsemi NCV33269DTRK-012
- Part No.:
- NCV33269DTRK-012
- Manufacturer:
- onsemi
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
NCV33269DTRK-012.pdf
- Description:
- IC REG LINEAR 12V 800MA DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:4,865
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Product details
Overview
NCV33269DTRK-012 from onsemi is an automotive-grade, low-dropout (LDO) linear voltage regulator delivering a fixed 12 V output at up to 800 mA. It features 1.0 V dropout at 500 mA, ±1.0% output voltage tolerance, thermal shutdown, and short-circuit protection. Designed for low-input-voltage systems, it supports engine control units, body electronics, and infotainment power rails.
For engineers reviewing the NCV33269DTRK-012 datasheet, pinout, applications, or equivalent options, this page provides verified electrical specs, package dimensions, thermal performance data, and AEC-Q100-compliant design context for automotive power supply validation.
Technical Context
The NCV33269DTRK-012 uses a composite PNP–NPN pass transistor architecture enabling stable regulation with only 1.0 V input-to-output differential at 500 mA. Its internal reference is trimmed to 1.25 V with ±1.0% accuracy over temperature and load.
It integrates current limiting and thermal shutdown without external components, and requires a minimum 10 µF output capacitor with ESR between 0.2 Ω and 10 Ω for stability. Input voltage is limited to 20 V, and for the 12 V version, Vin − Vout must not exceed 8.0 V per absolute maximum rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 12 V ±1.0% (11.88–12.12 V at 10 mA, TA = 25°C) |
| Dropout Voltage | 1.0 V typical at 500 mA; 1.35 V max at 800 mA - enables operation from 13.35 V min input |
| Output Current | ≥800 mA continuous - supports high-current microcontrollers and sensors |
| Line Regulation | ≤0.3% - ensures stable output across 13.5 V to 20 V input range |
| Ripple Rejection | 55 dB at 120 Hz - suppresses alternator ripple in automotive battery-fed systems |
| Thermal Shutdown | Activates at ~170°C junction temperature - protects against sustained overload or poor heatsinking |
| AEC-Q100 Grade | Qualified to Grade 1 (−40°C to +125°C ambient) - certified for under-hood and cabin applications |
Pinout & Package
DPAK-3 (Case 369C) package with exposed heatsink tab electrically connected to Pin 2 (Vout). Compact surface-mount footprint (6.10 × 6.54 × 2.28 mm) optimized for automotive PCB space constraints and thermal dissipation via copper pour.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND / Adj | Ground reference for fixed-output mode; adjustment node for adjustable variants (not used in -012) |
| 2 | Vout | Regulated 12 V output; connected to heatsink tab - requires thermal pad connection to PCB ground plane |
| 3 | Vin | Input supply (max 20 V); must be decoupled with ≥0.33 µF low-ESR capacitor near pin |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q100 Grade 1 qualified with PPAP capability - meets OEM requirements for production release |
| Low dropout operation | 1.0 V dropout at 500 mA enables use with degraded 12 V battery (e.g., 13 V cold-crank) |
| Output accuracy | ±1.0% initial tolerance - reduces need for post-production calibration in precision analog subsystems |
| Integrated protection | Current limit (800 mA min) + thermal shutdown - eliminates need for external foldback or reset circuitry |
| Pb-free packaging | RoHS-compliant DPAK with "G" suffix marking - supports global automotive environmental compliance |
Applications
| Engine Control Unit (ECU) Power | Body Control Module (BCM) Supply |
|---|---|
Use Scenario: Powers 32-bit MCU, CAN transceivers, and sensor interfaces in gasoline/diesel engine management systems. IC Role / Device Role / Timing Role: Primary 12 V LDO supplying critical logic and analog circuitry downstream of main DC/DC converter. Use Value: 1.0 V dropout ensures uninterrupted operation during cranking (battery dip to 6–9 V), while ±1.0% tolerance maintains ADC reference stability. | Use Scenario: Supplies door module controllers, window lift drivers, and lighting ICs in centralized body electronics architecture. IC Role / Device Role / Timing Role: Local point-of-load regulator converting 12 V battery rail to clean 12 V for actuator drivers and communication PHYs. Use Value: Integrated short-circuit protection prevents latch-up during motor stall events; thermal shutdown avoids field failures in sealed enclosures. |
| Infotainment System Core Rail | ADAS Camera Power |
Use Scenario: Provides stable 12 V to audio DSPs, display timing controllers, and USB hub ICs in head-unit designs. IC Role / Device Role / Timing Role: Secondary regulated rail isolating noise-sensitive digital subsystems from noisy vehicle battery bus. Use Value: 55 dB ripple rejection attenuates alternator switching noise, preventing audible artifacts in audio output and display flicker. | Use Scenario: Powers image sensor SoCs and serializer ICs in rear-view and surround-view camera modules. IC Role / Device Role / Timing Role: Low-noise, high-reliability 12 V source meeting ASIL-B functional safety requirements for vision processing. Use Value: AEC-Q100 Grade 1 qualification and -40°C to +125°C operation ensure startup and runtime reliability in extreme ambient conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8664CDT12RKG | Lower dropout (0.6 V typ at 150 mA), lower Iout (150 mA), SO-8 package | Suitable for low-power MCU peripherals but insufficient for 800 mA loads like motor drivers | Select NCV33269DTRK-012 when ≥800 mA output and DPAK thermal performance are required |
| TLV73312PDBVR | Higher accuracy (±0.5%), smaller SOT-23 package, 300 mA max output | Targeted at portable electronics; lacks AEC-Q100 qualification and automotive thermal robustness | Choose NCV33269DTRK-012 for under-hood deployment where temperature, current, and qualification are critical |
Compared with NCV8664CDT12RKG and TLV73312PDBVR, the NCV33269DTRK-012 uniquely delivers automotive-grade 800 mA output in a thermally efficient DPAK package with proven 1.0 V dropout performance across −40°C to +125°C - making it irreplaceable for high-current body and powertrain modules.
Availability
NCV33269DTRK-012 is available at Aetrix Electronics and suitable for automotive ECU power, body control module supply, and ADAS camera power requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for NCV33269DTRK-012 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 (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power management, analog, and sensing technologies for automotive, industrial, and cloud infrastructure markets.
The NCV33269 series belongs to onsemi's automotive-qualified linear regulator product line, engineered specifically for robust, low-noise, high-current power delivery in harsh-temperature vehicle environments.
FAQ
What is the maximum input voltage for NCV33269DTRK-012?
The absolute maximum input voltage for NCV33269DTRK-012 is 20 V. However, due to its 12 V output, the input-to-output differential must not exceed 8.0 V per datasheet Note 1 - meaning maximum applied Vin is 20 V, but practical operation is limited to ≤20 V with Vin − Vout ≤ 8.0 V. This constraint prevents overstressing internal pass elements and ensures reliability in automotive battery systems.
Does NCV33269DTRK-012 require an input capacitor?
While an input capacitor is not required for stability, NCV33269DTRK-012 benefits from a ≥0.33 µF low-ESR capacitor (tantalum, ceramic, or film) placed directly across Vin and GND pins. This improves transient response and reduces sensitivity to high-frequency input impedance - especially critical when connected via long traces to bulk filtering or alternator outputs in automotive applications.
Is the heatsink tab of NCV33269DTRK-012 electrically isolated?
No - the exposed heatsink surface (terminal 4 in case outline) of NCV33269DTRK-012 is internally connected to Pin 2 (Vout). Therefore, the thermal pad on the PCB must be routed to the 12 V output net, not ground. This configuration enhances thermal conduction while requiring careful layout to avoid shorting to adjacent ground planes or signals.
What is the minimum load current required for NCV33269DTRK-012 stability?
NCV33269DTRK-012 does not require a minimum load current for stability - the datasheet specifies 0 mA minimum load for fixed-output versions. Unlike some LDOs, it remains stable from no-load to full 800 mA, simplifying design in systems with variable or intermittent downstream loads such as sleep-mode ECUs or duty-cycled actuators.
How does thermal shutdown behave in NCV33269DTRK-012?
NCV33269DTRK-012 activates thermal shutdown at approximately 170°C junction temperature with no built-in hysteresis. When triggered, the output disables immediately. As the die cools, output resumes - potentially causing oscillatory behavior under sustained overload. This is a fail-safe mechanism, not a thermal regulation feature; proper PCB copper area and airflow must be designed to keep TJ < 150°C under worst-case load.
NCV33269DTRK-012 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 20V
- Voltage - Output (Min/Fixed):
- 12V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.35V @ 800mA
- Current - Output:
- 800mA
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- 55dB (120Hz)
- Control Features:
- -
- Protection Features:
- Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DPAK
NCV33269DTRK-012 FAQ
1.How can I place an order for NCV33269DTRK-012 through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV33269DTRK-012 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 NCV33269DTRK-012 reliable?
The price and inventory of NCV33269DTRK-012 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV33269DTRK-012 is usually 5 days.
3.What payment methods are accepted for NCV33269DTRK-012?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV33269DTRK-012 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV33269DTRK-012?
NCV33269DTRK-012 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV33269DTRK-012 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 NCV33269DTRK-012?
For technical support, including NCV33269DTRK-012 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV33269DTRK-012 requirements.
6.How does Aetrix verify that NCV33269DTRK-012 is sourced from the original manufacturer or authorized distributors?
All NCV33269DTRK-012 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 NCV33269DTRK-012 meets industry standards.
7.What is the process for return or replacement of NCV33269DTRK-012?
All NCV33269DTRK-012 units undergo pre-shipment inspection (PSI). If there is an issue with NCV33269DTRK-012, 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 NCV33269DTRK-012 part is unused and in its original packaging.
Return procedure for NCV33269DTRK-012:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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