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onsemi NCV78M15BDTRKG
- Part No.:
- NCV78M15BDTRKG
- Manufacturer:
- onsemi
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
NCV78M15BDTRKG.pdf
- Description:
- IC REG LINEAR 15V 500MA DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:2,916
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Product details
Overview
NCV78M15BDTRKG from onsemi is an automotive-grade 15 V, 500 mA fixed-output linear voltage regulator in DPAK-3 (TO-252) package with internal thermal shutdown, short-circuit current limiting, and safe-area compensation. It delivers stable local regulation for engine control units, body electronics, and infotainment power rails under harsh automotive conditions.
For engineers reviewing the NCV78M15BDTRKG datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q100 qualification, ±3% output voltage tolerance at TJ = 25°C, 2.0 V dropout voltage, 54 dB ripple rejection at 100 mA/120 Hz, and −40°C to +125°C operating junction temperature range.
Technical Context
The NCV78M15BDTRKG implements a monolithic three-terminal series pass architecture with built-in protection circuitry: thermal overload shutdown activates at ~150°C junction temperature, short-circuit current limit holds peak output at 350 mA, and safe-area compensation dynamically reduces short-circuit current as input-to-output differential increases. It requires no external components for basic operation.
Designed for automotive environments, it features Pb-free packaging, NCV prefix denoting AEC-Q100 qualification and PPAP capability, and guaranteed performance across −40°C to +125°C junction temperature. Its 2.0 V minimum dropout enables use with 17.5–30 V input ranges typical of 12 V vehicle electrical systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 15 V nominal, 14.4–15.6 V over full load/line/temp (±4% total variation) |
| Max Output Current | 500 mA continuous, 700 mA peak - supports mid-power MCU peripherals and sensors |
| Dropout Voltage | 2.0 V typical at 350 mA - enables operation from 17.5 V min input in 12 V systems |
| Ripple Rejection | 54 dB at 100 mA/120 Hz - suppresses alternator ripple without external filtering |
| Quiescent Current | 3.2–6.0 mA - low standby consumption for always-on automotive modules |
| Thermal Shutdown | Activates at TJ ≈ 150°C - protects against sustained overload or poor heatsinking |
| Operating Temp | −40°C to +125°C junction - meets automotive under-hood and cabin requirements |
Pinout & Package
DPAK-3 (TO-252) surface-mount package with exposed thermal pad connected to Pin 2 (GND). Heatsink surface is electrically tied to ground for optimal thermal performance and EMI control.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input | Unregulated DC input (17.5–30 V); bypass capacitor required for stability |
| 2 | Ground | Common reference and thermal pad connection; must be soldered to large copper area |
| 3 | Output | Regulated 15 V supply; decoupling capacitor recommended at point-of-load |
Key Features
| Feature | Design Value |
|---|---|
| No external components required | Enables compact, low-BOM designs for space-constrained automotive ECUs |
| AEC-Q100 qualified (Grade 1) | Validated for automotive applications with full PPAP documentation support |
| Internal short-circuit current limiting | 350 mA hard limit prevents damage during wiring faults or downstream shorts |
| Output transistor safe-area compensation | Reduces short-circuit current as VI–VO rises - improves reliability under fault conditions |
| Pb-free and RoHS compliant | Meets global environmental regulations and automotive material compliance standards |
Applications
| Engine Control Unit (ECU) Power | Body Control Module (BCM) |
|---|---|
Use Scenario: Supplies 15 V to microcontroller I/O buffers, CAN transceivers, and sensor signal conditioning circuits in gasoline/diesel engine management systems. IC Role / Device Role / Timing Role: Local post-regulation stage delivering clean, protected 15 V from main 12 V rail. Use Value: Withstands load dump transients up to 35 V and operates reliably at 125°C ambient under hood. | Use Scenario: Powers door lock actuators, window lift controllers, and interior lighting drivers in centralized body electronics. IC Role / Device Role / Timing Role: Fixed-voltage regulator providing stable 15 V for motor driver ICs and logic interfaces. Use Value: Internal thermal shutdown prevents latch-up during repeated actuator stall events. |
| Infotainment System Supply | Advanced Driver Assistance (ADAS) Camera Module |
Use Scenario: Generates 15 V for display backlight drivers and audio amplifier bias rails in head unit designs. IC Role / Device Role / Timing Role: Secondary regulator stepping down from 12 V battery-derived 5 V/3.3 V supplies. Use Value: 54 dB ripple rejection maintains low-noise operation critical for analog video paths. | Use Scenario: Provides 15 V to image sensor bias circuitry and lens actuator drivers in rear-view or surround-view cameras. IC Role / Device Role / Timing Role: Point-of-load regulator ensuring stable sensor bias despite battery voltage fluctuations. Use Value: −40°C to +125°C operation supports camera mounting in extreme exterior locations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC78M15BDTRKG | Same electrical specs but commercial temp range (0°C to +125°C); no AEC-Q100 qualification | Not suitable for automotive under-hood or safety-critical modules | Select only for cost-sensitive industrial or consumer applications with benign thermal environments |
| NCV78M15CDTRKG | Higher accuracy (±2% vs ±3%); same automotive grade and package | Better suited for precision analog subsystems requiring tighter voltage tolerance | Choose when output voltage stability is critical - e.g., ADC reference buffers or high-gain op-amp stages |
Compared with MC78M15BDTRKG, the NCV78M15BDTRKG adds automotive qualification and extended low-temp operation; compared with NCV78M15CDTRKG, it trades ±2% accuracy for lower cost while retaining full AEC-Q100 compliance and thermal robustness.
Availability
NCV78M15BDTRKG is available at Aetrix Electronics and suitable for engine control units, body control modules, and infotainment systems requiring stable component supply with automotive-grade reliability and traceable sourcing.
Supply support for NCV78M15BDTRKG 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 focused on energy-efficient electronics for automotive, industrial, cloud, medical, and IoT applications.
The NCV78M15BDTRKG belongs to the NCV78Mxx automotive linear regulator family, designed specifically for robust, low-cost local voltage regulation in harsh-temperature automotive subsystems where reliability and qualification are mandatory.
FAQ
What is the maximum input voltage rating for NCV78M15BDTRKG?
The NCV78M15BDTRKG has an absolute maximum input voltage of 40 Vdc, as specified in the Maximum Ratings table. However, for reliable operation within its electrical characteristics, the recommended input range is 17.5 Vdc to 30 Vdc. Exceeding 40 Vdc risks permanent device damage due to internal breakdown.
Does NCV78M15BDTRKG require an input bypass capacitor?
Yes, NCV78M15BDTRKG requires an input bypass capacitor-typically ≥0.33 µF tantalum or ceramic-to ensure stability, especially when connected via long traces or driving large capacitive loads. The datasheet recommends mounting it with shortest possible leads directly across Pins 1 and 2 to minimize inductance and prevent oscillation.
What is the thermal resistance (θJA) of NCV78M15BDTRKG in standard PCB layout?
In a standard 1-inch² 2-oz copper pad layout, the NCV78M15BDTRKG exhibits θJA ≈ 92°C/W. With optimized thermal design-including full-exposed-pad soldering to ≥2-inch² copper area-θJA can improve to ~50°C/W, enabling higher continuous current capability without external heatsink.
Can NCV78M15BDTRKG be used in parallel for higher current?
No, NCV78M15BDTRKG is not designed for parallel operation. Its output voltage tolerance (±3%) and lack of current-sharing features make direct paralleling unstable and prone to thermal runaway. For >500 mA, use a single higher-current regulator or implement external current-boosting with a PNP transistor as shown in Figure 12 of the datasheet.
Is NCV78M15BDTRKG pin-compatible with legacy 78M15 regulators?
Yes, NCV78M15BDTRKG uses the standard DPAK-3 (TO-252) pinout: Pin 1 = Input, Pin 2 = Ground (thermal pad), Pin 3 = Output. It is mechanically and electrically pin-compatible with MC78M15x and NCV78M15x variants in the same package, enabling drop-in replacement in existing layouts when automotive qualification is added.
NCV78M15BDTRKG 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):
- 35V
- Voltage - Output (Min/Fixed):
- 15V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 500mA
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- 70dB (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
NCV78M15BDTRKG FAQ
1.How can I place an order for NCV78M15BDTRKG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV78M15BDTRKG 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 NCV78M15BDTRKG reliable?
The price and inventory of NCV78M15BDTRKG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV78M15BDTRKG is usually 5 days.
3.What payment methods are accepted for NCV78M15BDTRKG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV78M15BDTRKG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV78M15BDTRKG?
NCV78M15BDTRKG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV78M15BDTRKG 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 NCV78M15BDTRKG?
For technical support, including NCV78M15BDTRKG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV78M15BDTRKG requirements.
6.How does Aetrix verify that NCV78M15BDTRKG is sourced from the original manufacturer or authorized distributors?
All NCV78M15BDTRKG 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 NCV78M15BDTRKG meets industry standards.
7.What is the process for return or replacement of NCV78M15BDTRKG?
All NCV78M15BDTRKG units undergo pre-shipment inspection (PSI). If there is an issue with NCV78M15BDTRKG, 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 NCV78M15BDTRKG part is unused and in its original packaging.
Return procedure for NCV78M15BDTRKG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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