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onsemi NCV78M09BDTRKG
- Part No.:
- NCV78M09BDTRKG
- Manufacturer:
- onsemi
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
NCV78M09BDTRKG.pdf
- Description:
- IC REG LINEAR 9V 700MA DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:1,538
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Product details
Overview
NCV78M09BDTRKG from onsemi is an automotive-grade 500 mA positive fixed-voltage linear regulator delivering 9.0 V output with ±5% tolerance over −40°C to +125°C, featuring internal thermal shutdown, short-circuit current limiting, and safe-area compensation for rugged local voltage regulation in engine control units and body electronics.
For engineers reviewing the NCV78M09BDTRKG datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q100 qualification, DPAK-3 package thermal performance, dropout voltage of 2.0 V at 350 mA, and ripple rejection of 56 dB at 120 Hz under automotive load conditions.
Technical Context
The NCV78M09BDTRKG implements a monolithic three-terminal series pass architecture with built-in protection circuitry: thermal overload shutdown triggers at +150°C junction temperature, short-circuit current limit holds peak output at 350 mA, and safe-area compensation dynamically reduces output current as input-to-output differential increases-ensuring robust operation during transients.
It operates without external components in standard configurations, supports input voltages from 11.5 V to 23 V (with absolute max 40 V), and maintains output stability across 5 mA–500 mA load range while exhibiting 6.0 mV typical line regulation and 25 mV load regulation over full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 9.0 V ±5% (8.55–9.45 V) at TJ = 25°C; ensures stable supply for 9 V rail systems like instrument clusters |
| Max Output Current | 500 mA continuous (700 mA peak); sufficient for microcontrollers, sensors, and CAN transceivers |
| Dropout Voltage | 2.0 V at 350 mA; requires minimum 11.0 V input for regulated 9.0 V output under full load |
| Ripple Rejection | 56 dB at 120 Hz, IO = 100 mA; suppresses alternator ripple in automotive battery-fed systems |
| Operating Temp | −40°C to +125°C junction; qualified per AEC-Q100 Grade 1 for under-hood deployment |
| Thermal Resistance | Junction-to-case 5.0°C/W (DPAK-3); enables 7.5 W max dissipation with minimal heatsinking |
| Short-Circuit Limit | 350 mA typical; protects against sustained faults without latch-up or damage |
Pinout & Package
DPAK-3 (Case 369C) surface-mount package with exposed thermal pad connected to Pin 2 (GND); optimized for PCB copper area heat spreading in space-constrained automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Input | Unregulated DC input (11.5–23 V typical); must be bypassed with ≥0.33 µF capacitor near pin |
| Pin 2 | Ground | Common reference and thermal path; connects to exposed pad and system GND plane |
| Pin 3 | Output | Regulated 9.0 V supply; stable under 5–500 mA load with ≤25 mV variation |
Key Features
| Feature | Design Value |
|---|---|
| No external components required | Self-contained regulation eliminates need for external feedback or compensation networks |
| Internal thermal shutdown | Automatic disable above +150°C junction temperature; recovers after cooldown |
| Short-circuit current limiting | Clamps output to 350 mA during fault, preventing device destruction or board damage |
| Safe-area compensated pass transistor | Reduces current during high VI–VO differentials to avoid SOA violation and thermal runaway |
| AEC-Q100 qualified | Validated for automotive applications including engine control, lighting, and ADAS power domains |
Applications
| Engine Control Unit (ECU) Power | Instrument Cluster Supply |
|---|---|
Use Scenario: Powers MCU, analog front-end, and CAN interface in gasoline/diesel ECU modules. IC Role / Device Role / Timing Role: Local point-of-load regulator converting 12 V battery to stable 9 V rail. Use Value: Maintains 9.0 V ±5% across cold-crank (6.5 V) to load-dump (35 V) transients with thermal shutdown protection. | Use Scenario: Supplies display driver ICs and microcontroller peripherals in digital dashboards. IC Role / Device Role / Timing Role: Primary 9 V regulator for LCD backlight controllers and touch-sensing circuits. Use Value: Delivers low-noise 9 V output with 52 µV RMS noise, minimizing display flicker and sensor offset drift. |
| Body Control Module (BCM) | Automotive Lighting Driver |
Use Scenario: Provides regulated power to door module MCUs and LIN transceivers. IC Role / Device Role / Timing Role: Fixed 9 V supply for low-power logic and communication interfaces. Use Value: Supports wide-input operation (11.5–23 V) and meets EMC requirements via integrated ripple rejection. | Use Scenario: Powers LED driver ICs in adaptive front-lighting systems (AFS). IC Role / Device Role / Timing Role: Bias supply for current-mode LED controllers requiring precise voltage reference. Use Value: Ensures stable 9 V reference under pulsed loads up to 500 mA with <25 mV load regulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-voltage linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC78M09BDTRKG | Same electrical specs but commercial temp range (0°C to +125°C); no AEC-Q100 qualification | Not suitable for automotive under-hood use; acceptable for industrial or consumer power rails | Select when AEC-Q100 compliance is not required and cost sensitivity outweighs automotive qualification |
| NCV78M09CDTRKG | ±2% output tolerance (vs. ±5%); tighter initial accuracy but same thermal/short-circuit protection | Better for precision analog subsystems where 9 V reference stability is critical | Choose when system-level voltage tolerance budget demands higher initial accuracy than ±5% |
Compared with MC78M09BDTRKG, the NCV78M09BDTRKG adds AEC-Q100 qualification and extended −40°C operation, while NCV78M09CDTRKG trades wider tolerance for improved initial accuracy-enabling targeted selection based on environmental rigor versus voltage precision requirements.
Availability
NCV78M09BDTRKG is available at Aetrix Electronics and suitable for automotive ECU, instrument cluster, and body control module designs requiring stable component supply with guaranteed long-term lifecycle support.
Supply support for NCV78M09BDTRKG 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, and IoT applications.
The NCV78M00 series is designed specifically for automotive power management, delivering AEC-Q100-qualified linear regulators with enhanced thermal and fault resilience for under-hood and chassis-mounted electronics.
FAQ
What is the maximum input voltage rating for NCV78M09BDTRKG?
The NCV78M09BDTRKG has an absolute maximum input voltage of 40 Vdc, with recommended operating range of 11.5 Vdc to 23 Vdc for optimal regulation and thermal performance. Exceeding 40 Vdc risks permanent damage even with short-duration transients, and operation below 11.5 Vdc may cause dropout and loss of regulation.
Does NCV78M09BDTRKG require input or output capacitors for stable operation?
NCV78M09BDTRKG does not require external capacitors for basic regulation, but an input bypass capacitor (≥0.33 µF tantalum or ceramic) is strongly recommended when connected via long traces or high-impedance sources to prevent oscillation. No output capacitor is mandatory, though a 1 µF ceramic improves transient response.
How does the thermal shutdown feature operate in NCV78M09BDTRKG?
The NCV78M09BDTRKG activates thermal shutdown when junction temperature reaches +150°C, disabling output until temperature falls by ~15°C. This protection is fully internal and self-resetting-no external circuitry or reset signal is needed. The DPAK-3 package's 5.0°C/W θJC enables effective PCB-based heat sinking.
Can NCV78M09BDTRKG be used in parallel to increase output current?
No, NCV78M09BDTRKG is not designed for parallel operation. Its output voltage tolerance (±5%) and lack of current-sharing features make paralleling unreliable and potentially unstable. For >500 mA, use a single higher-current regulator or implement external current boosting with a PNP transistor as documented in the datasheet.
What is the significance of the "NCV" prefix in NCV78M09BDTRKG?
The "NCV" prefix denotes onsemi's automotive-grade product line: NCV78M09BDTRKG is AEC-Q100 qualified, manufactured in IATF 16949-certified facilities, and subject to PPAP documentation. It guarantees −40°C to +125°C operation, enhanced process controls, and lot-level traceability-distinguishing it from commercial-grade MC78M09x variants.
NCV78M09BDTRKG 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):
- 9V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 700mA
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- 80dB (120Hz)
- Control Features:
- -
- Protection Features:
- Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DPAK
NCV78M09BDTRKG FAQ
1.How can I place an order for NCV78M09BDTRKG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV78M09BDTRKG 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 NCV78M09BDTRKG reliable?
The price and inventory of NCV78M09BDTRKG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV78M09BDTRKG is usually 5 days.
3.What payment methods are accepted for NCV78M09BDTRKG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV78M09BDTRKG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV78M09BDTRKG?
NCV78M09BDTRKG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV78M09BDTRKG 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 NCV78M09BDTRKG?
For technical support, including NCV78M09BDTRKG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV78M09BDTRKG requirements.
6.How does Aetrix verify that NCV78M09BDTRKG is sourced from the original manufacturer or authorized distributors?
All NCV78M09BDTRKG 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 NCV78M09BDTRKG meets industry standards.
7.What is the process for return or replacement of NCV78M09BDTRKG?
All NCV78M09BDTRKG units undergo pre-shipment inspection (PSI). If there is an issue with NCV78M09BDTRKG, 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 NCV78M09BDTRKG part is unused and in its original packaging.
Return procedure for NCV78M09BDTRKG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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