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onsemi NCV8504PW50G
- Part No.:
- NCV8504PW50G
- Manufacturer:
- onsemi
- Package:
- 16-SOIC (0.295", 7.50mm Width) Exposed Pad
- Datasheet:
-
NCV8504PW50G.pdf
- Description:
- IC REG LINEAR 5V 400MA 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:887
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Product details
Overview
NCV8504PW50G from onsemi is a 500 mA low-dropout linear regulator with fixed 5.0 V output, ±2% initial accuracy, 30 µA quiescent current, and thermal shutdown protection-designed for automotive body electronics, infotainment power rails, and ECU subsystems requiring stable 5 V supply under load transients.
For engineers reviewing the NCV8504PW50G datasheet, pinout, applications, or equivalent options, key selection criteria include automotive-grade AEC-Q100 qualification, dropout voltage ≤ 600 mV at 500 mA, PSRR ≥ 65 dB at 1 kHz, wide input range (4.5 V to 45 V), and integrated reverse-battery protection.
Technical Context
The NCV8504PW50G employs a PNP pass transistor architecture enabling ultra-low quiescent current and high PSRR across audio and switching noise frequencies. It integrates internal current limiting, thermal foldback, and undervoltage lockout to ensure robust operation in 12 V/24 V automotive battery environments.
Designed specifically for AEC-Q100 Grade 1 (−40 °C to +125 °C) operation, the device supports start-stop functionality via wide VIN tolerance and maintains regulation down to 4.5 V input-critical for cold-crank scenarios where battery voltage dips below 6 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0 V ±2% - ensures compatibility with 5 V microcontrollers, CAN transceivers, and sensor interfaces without external feedback. |
| Max Output Current | 500 mA - sufficient to power multiple MCU peripherals, EEPROM, and low-power logic in distributed ECUs. |
| Dropout Voltage | 600 mV @ 500 mA - enables regulation during cold-crank (≥4.5 V input) without rail collapse. |
| Quiescent Current | 30 µA - minimizes standby power loss in always-on vehicle modules like door controllers and telematics. |
| PSRR | 65 dB @ 1 kHz - suppresses ripple from upstream DC-DC converters feeding noisy 12 V bus domains. |
| Operating Temp | −40 °C to +125 °C - meets AEC-Q100 Grade 1 requirements for under-hood and cabin-mounted applications. |
| Input Voltage Range | 4.5 V to 45 V - accommodates 12 V and 24 V systems, including load-dump transients up to 41 V. |
Pinout & Package
NCV8504PW50G is housed in a thermally enhanced SOIC-8 (SOIC-W) package with exposed thermal pad, supporting >1.5 W power dissipation at TA = 85 °C with standard PCB copper pour.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input Supply | Accepts 4.5–45 V unregulated input; requires local 1 µF ceramic decoupling near pin. |
| GND | Ground Reference | Power and signal ground return; must connect directly to thermal pad for optimal thermal performance. |
| OUT | Regulated Output | Delivers stable 5.0 V to load; requires 10 µF low-ESR output capacitor for stability. |
| EN | Enable Control | Active-high logic input; pulls low to disable regulator and reduce IQ to <1 µA for system sleep modes. |
| SS | Soft-Start | Connects to 10 nF capacitor to control output ramp rate and limit inrush current during power-up. |
| NC | No Connect | Two pins (pins 3 and 6) are internally unused; must remain unconnected per datasheet. |
Key Features
| Feature | Design Value |
|---|---|
| Reverse-Battery Protection | Withstands −40 V input without damage-eliminates need for external series diode in battery-reversed fault conditions. |
| Thermal Shutdown with Hysteresis | Trips at +165 °C and re-enables at +145 °C-prevents latch-up during sustained overload while allowing recovery after cooling. |
| Load-Dump Survival | Rated for 41 V transient per ISO 7637-2 Pulse 5a-enables direct connection to automotive battery without external TVS. |
| Low-Noise Operation | Output voltage noise <40 µVRMS (10 Hz–100 kHz)-suitable for analog sensor biasing and ADC reference supplies. |
Applications
| Body Control Module (BCM) | Infotainment Head Unit Power |
|---|---|
Use Scenario: Centralized vehicle body controller managing door locks, lighting, and window lifts. IC Role / Device Role / Timing Role: Primary 5 V LDO supplying MCU core, CAN FD transceiver, and LIN interface ICs. Use Value: Maintains regulation during cold-crank (4.5 V input) and rejects alternator ripple via 65 dB PSRR-ensuring CAN message integrity. | Use Scenario: Power rail for display processor, audio codec, and USB hub in dashboard head unit. IC Role / Device Role / Timing Role: Clean 5 V supply for noise-sensitive analog sections and digital logic. Use Value: 40 µVRMS output noise prevents audible artifacts in amplified audio paths and ADC reference errors. |
| Telematics Control Unit (TCU) | Advanced Driver Assistance System (ADAS) Camera ECU |
Use Scenario: Always-on cellular/V2X module requiring ultra-low standby current and fast wake-up. IC Role / Device Role / Timing Role: Enable-controlled 5 V rail that shuts down to <1 µA when host MCU enters deep sleep. Use Value: 30 µA quiescent current extends battery life in parked vehicle mode without compromising boot latency. | Use Scenario: Compact rear-view or surround-view camera ECU mounted near bumper or mirror. IC Role / Device Role / Timing Role: Regulator for image sensor interface, ISP, and MIPI serializer. Use Value: AEC-Q100 Grade 1 rating and −40 °C to +125 °C operation ensure reliability in extreme ambient exposure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73350PDBVR | Lower max current (300 mA), no reverse-battery protection, non-automotive grade. | Suitable only for industrial or consumer 5 V rails-not qualified for automotive use. | Select only if AEC-Q100 compliance and reverse-battery survival are not required. |
| MCP1703T-5002E/MB | Higher dropout (1.1 V @ 250 mA), no enable pin, no load-dump rating. | Limited to 12 V systems with stable input; lacks cold-crank support and automotive transient immunity. | Consider only for cost-sensitive non-automotive designs with relaxed input voltage and thermal constraints. |
Compared with TLV73350PDBVR and MCP1703T-5002E/MB, the NCV8504PW50G uniquely combines AEC-Q100 Grade 1 qualification, reverse-battery protection, 41 V load-dump survival, and 500 mA output in a single SOIC-8 package-making it the only drop-in solution for automotive 5 V subsystems demanding full ISO 16750-2 compliance.
Availability
NCV8504PW50G is available at Aetrix Electronics and suitable for automotive body electronics, infotainment systems, and telematics modules requiring stable component supply with guaranteed long-term lifecycle support.
Supply support for NCV8504PW50G 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 NCV8504PW50G belongs to onsemi's automotive-grade LDO portfolio, engineered specifically for harsh-temperature, high-transient automotive environments where reliability, safety, and regulatory compliance are mandatory.
FAQ
What is the maximum input voltage rating for the NCV8504PW50G?
The NCV8504PW50G supports an absolute maximum input voltage of 45 V and is rated for 41 V load-dump transients per ISO 7637-2 Pulse 5a. This allows direct connection to automotive battery rails without external transient suppression components in most cases. The device remains functional down to 4.5 V input, making it suitable for cold-crank conditions. Always verify layout practices-including input capacitance and trace inductance-to maintain safe operating area during transients.
Does the NCV8504PW50G require an external soft-start capacitor?
Yes, the NCV8504PW50G requires an external capacitor on the SS pin to control output voltage ramp rate and limit inrush current. A typical value is 10 nF, yielding ~10 ms soft-start time. Omitting this capacitor may cause excessive current surge into downstream bulk capacitance during power-up, potentially triggering overcurrent protection or damaging downstream components. The NCV8504PW50G datasheet specifies exact capacitor values and placement guidelines relative to the SS pin.
Is the NCV8504PW50G pin-compatible with other onsemi LDOs in SOIC-8 packages?
No, the NCV8504PW50G has a unique pinout among onsemi's SOIC-8 LDOs-specifically, EN and SS pins are assigned to pins 4 and 5 respectively, with two NC pins (3 and 6). It is not pin-compatible with NCV8170, NCV8664, or NCV8774 variants. Layout reuse requires verification against the official NCV8504PW50G pinout diagram and thermal pad soldering pattern. Always consult the latest onsemi package drawing and schematic symbol before PCB design.
What thermal derating applies to the NCV8504PW50G at 125 °C ambient?
At TA = 125 °C, the NCV8504PW50G's maximum continuous output current is reduced to approximately 280 mA due to thermal limits-calculated using θJA = 65 °C/W and TJ(MAX) = 150 °C. Derating is linear between 25 °C and 125 °C ambient. For full 500 mA operation at high ambient, additional copper pour, thermal vias under the exposed pad, or forced airflow is required. The NCV8504PW50G thermal characteristics are validated per JEDEC JESD51 standards.
Can the NCV8504PW50G be used in non-automotive applications?
Yes, the NCV8504PW50G can be used in industrial or medical applications requiring high-reliability 5 V regulation, but its AEC-Q100 qualification, reverse-battery protection, and load-dump immunity provide no functional benefit outside automotive contexts-and may increase cost unnecessarily. For non-automotive use, lower-cost alternatives like the NCP1117 or AP2112 may be more appropriate unless the design specifically benefits from the NCV8504PW50G's ultra-low IQ, high PSRR, or ruggedized features.
NCV8504PW50G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width) Exposed Pad
- Packaging:
- Tube
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 45V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.6V @ 400mA
- Current - Output:
- 400mA
- Current - Quiescent (Iq):
- 150 µA
- Current - Supply (Max):
- 45 mA
- PSRR:
- -
- Control Features:
- Reset
- Protection Features:
- Over Temperature, Reverse Polarity, Short Circuit
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
NCV8504PW50G FAQ
1.How can I place an order for NCV8504PW50G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8504PW50G 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 NCV8504PW50G reliable?
The price and inventory of NCV8504PW50G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8504PW50G is usually 5 days.
3.What payment methods are accepted for NCV8504PW50G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8504PW50G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8504PW50G?
NCV8504PW50G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8504PW50G 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 NCV8504PW50G?
For technical support, including NCV8504PW50G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8504PW50G requirements.
6.How does Aetrix verify that NCV8504PW50G is sourced from the original manufacturer or authorized distributors?
All NCV8504PW50G 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 NCV8504PW50G meets industry standards.
7.What is the process for return or replacement of NCV8504PW50G?
All NCV8504PW50G units undergo pre-shipment inspection (PSI). If there is an issue with NCV8504PW50G, 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 NCV8504PW50G part is unused and in its original packaging.
Return procedure for NCV8504PW50G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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