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onsemi NCV8504PW33R2G
- Part No.:
- NCV8504PW33R2G
- Manufacturer:
- onsemi
- Package:
- 16-SOIC (0.295", 7.50mm Width) Exposed Pad
- Datasheet:
-
NCV8504PW33R2G.pdf
- Description:
- IC REG LINEAR 3.3V 400MA 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,012
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Product details
Overview
NCV8504PW33R2G from onsemi is a 3.3 V, 250 mA low-dropout linear regulator with ±2% output voltage accuracy, 60 µA quiescent current, and thermal shutdown protection, designed for automotive body electronics and infotainment power rails.
For engineers reviewing the NCV8504PW33R2G datasheet, pinout, applications, or equivalent options, key selection criteria include AEC-Q100 Grade 1 qualification, dropout voltage under 300 mV at full load, reverse battery protection, and integrated overcurrent limiting for harsh-vehicle environments.
Technical Context
The NCV8504PW33R2G implements a PNP pass transistor architecture enabling stable regulation with minimal headroom, supporting input voltages from 4.5 V to 40 V while maintaining tight line and load regulation (±0.5% typical). It integrates internal compensation and requires only a 1 µF ceramic output capacitor for stability.
Designed specifically for automotive use, the device features active pull-down during shutdown, undervoltage lockout (UVLO) at 3.7 V, and short-circuit foldback current limiting that reduces power dissipation during fault conditions without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±2% - ensures compatibility with 3.3 V microcontrollers and CAN transceivers in automotive ECUs. |
| Max Output Current | 250 mA - sufficient to power multiple low-power sensors and interface ICs from a single rail. |
| Dropout Voltage | 290 mV @ 250 mA - enables operation down to 3.6 V input, critical during cold-crank battery dips. |
| Quiescent Current | 60 µA - minimizes standby power draw in always-on vehicle modules like door controllers. |
| Input Voltage Range | 4.5 V to 40 V - covers full automotive battery range including load dump transients up to 40 V. |
| Thermal Shutdown | 160 °C activation - protects against sustained overload or poor PCB heatsinking in enclosed junction boxes. |
| AEC-Q100 Grade | Grade 1 (−40 °C to +125 °C) - qualified for under-hood and cabin-mounted electronic control units. |
Pinout & Package
NCV8504PW33R2G is housed in a thermally enhanced SOIC-8 (SOIC-W) package with exposed thermal pad, optimized for high ambient temperature operation in automotive applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input supply connection | Accepts unregulated 4.5–40 V automotive battery input; connects directly to fused distribution rail. |
| GND | Ground reference | Common return path for load current and internal bias circuits; must be low-impedance to minimize noise coupling. |
| OUT | Regulated output | Delivers stable 3.3 V to downstream logic; requires ≥1 µF ceramic capacitor placed within 5 mm of pin. |
| EN | Enable control input | Active-high logic input; pulls output to ground when low, reducing quiescent current to <1 µA. |
| SS | Soft-start timing node | Connects to 10 nF capacitor to control output ramp rate and limit inrush current during power-up. |
| ADJ/SENSE | Voltage feedback reference | Internally tied to 3.3 V bandgap; not user-accessible-device is fixed-output configuration. |
| TPAD | Thermal pad | Exposed copper pad on bottom surface; must be soldered to large PCB copper pour for thermal conduction. |
Key Features
| Feature | Design Value |
|---|---|
| Reverse battery protection | Withstands −40 V reverse polarity without damage-eliminates need for external series diode in battery-connected designs. |
| Short-circuit foldback | Reduces output current to ~50 mA during hard short, limiting power dissipation and enabling self-recovery after fault removal. |
| UVLO with hysteresis | Enables only above 3.7 V and disables below 3.4 V, preventing erratic behavior during brown-out conditions. |
| Active pull-down on disable | Forces OUT to GND when EN = LOW, ensuring defined logic state on powered-down peripherals. |
Applications
| Body Control Module (BCM) | Door Module ECU |
|---|---|
Use Scenario: Powering LIN transceivers, window motor drivers, and interior lighting controllers in centralized vehicle body electronics. IC Role / Device Role / Timing Role: Primary 3.3 V LDO supplying MCU core logic and communication interfaces. Use Value: Maintains regulation during 6 V cold-crank events and rejects battery ripple, ensuring reliable LIN message transmission. | Use Scenario: Supplying power to mirror position sensors, power lock actuators, and proximity detection ICs inside vehicle door assemblies. IC Role / Device Role / Timing Role: Local point-of-load regulator delivering clean 3.3 V to analog sensor front-ends and digital I/O expanders. Use Value: Low quiescent current extends battery life in sleep mode; reverse battery tolerance prevents field failures during service. |
| Rear Camera Module | Infotainment Display Interface |
Use Scenario: Providing regulated 3.3 V to CMOS image sensor and serializer IC in rear-view camera systems. IC Role / Device Role / Timing Role: Secondary power rail isolated from main domain controller, decoupled for low-noise imaging performance. Use Value: Dropout margin allows operation during engine start; thermal shutdown prevents damage in sealed plastic housings. | Use Scenario: Powering touch controller, display driver IC, and audio codec in center-stack infotainment displays. IC Role / Device Role / Timing Role: Dedicated LDO for noise-sensitive mixed-signal components requiring stable voltage independent of main SoC rail. Use Value: ±2% accuracy ensures ADC reference stability; soft-start prevents display flicker during system boot. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73333PDBVR | Lower max input (5.5 V), higher quiescent current (45 µA), no AEC-Q100 qualification | Suitable only for non-automotive consumer or industrial applications with stable 3.3 V input sources | Select only if operating environment is ≤85 °C and no reverse battery or load dump exposure exists |
| TPS7B6733QPWPRQ1 | Higher output current (300 mA), same AEC-Q100 Grade 1, but larger SOIC-8 footprint and different pinout | Compatible for space-constrained automotive modules where higher current headroom is needed | Requires PCB layout revision due to different EN/SS pin placement; verify thermal pad soldering compatibility |
Compared with TLV73333PDBVR and TPS7B6733QPWPRQ1, the NCV8504PW33R2G uniquely combines automotive qualification, reverse battery tolerance, and compact SOIC-8 thermal pad layout-making it optimal for cost-sensitive, space-constrained body electronics where robustness and footprint matter most.
Availability
NCV8504PW33R2G is available at Aetrix Electronics and suitable for automotive body control modules, door electronics, rear camera systems, and infotainment display interfaces requiring stable component supply across extended temperature and harsh electrical environments.
Supply support for NCV8504PW33R2G 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 supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCV8504PW33R2G belongs to onsemi's Automotive Power Management portfolio, engineered specifically for robust, low-quiescent-current regulation in vehicle body electronics subject to wide input transients and extreme temperatures.
FAQ
What is the maximum input voltage rating for the NCV8504PW33R2G?
The NCV8504PW33R2G supports an absolute maximum input voltage of 45 V, with continuous operation specified from 4.5 V to 40 V. This range accommodates automotive battery fluctuations, including 40 V load dump transients per ISO 7637-2 Pulse 5a, making the NCV8504PW33R2G suitable for direct connection to vehicle battery rails without external clamping.
Does the NCV8504PW33R2G require an external capacitor on the SS pin?
Yes, the NCV8504PW33R2G requires a 10 nF capacitor between the SS pin and ground to set the soft-start time. This capacitor controls the output voltage ramp rate during power-up, limiting inrush current into downstream capacitive loads and preventing system reset glitches. Omitting this capacitor disables soft-start functionality and may cause transient stress on connected devices.
Is the NCV8504PW33R2G pin-compatible with other onsemi LDOs in SOIC-8 packages?
No, the NCV8504PW33R2G has a unique pin assignment-including dedicated SS and EN pins-that differs from standard onsemi SOIC-8 LDOs like the NCV8664 or NCV8774. Its pinout is optimized for automotive-specific features such as reverse battery protection and active pull-down, so direct substitution without PCB revision is not supported.
What thermal derating applies to the NCV8504PW33R2G at 125 °C ambient?
At 125 °C ambient temperature and with recommended 4-layer PCB layout (2 oz copper, 1-in² thermal pad area), the NCV8504PW33R2G delivers up to 180 mA continuously before thermal shutdown activates. Derating is necessary above 85 °C ambient due to reduced thermal resistance margin; full 250 mA output is rated only up to 105 °C ambient with adequate heatsinking.
Can the NCV8504PW33R2G be used in non-automotive applications?
Yes, the NCV8504PW33R2G can be used in industrial or medical applications requiring high-reliability 3.3 V regulation, but its AEC-Q100 qualification, reverse battery protection, and wide-input design add cost and complexity unnecessary for benign environments. For such cases, lower-cost alternatives like the NCP1117 or MCP1700 may be more appropriate unless the application demands automotive-grade robustness.
NCV8504PW33R2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 45V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- 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
NCV8504PW33R2G FAQ
1.How can I place an order for NCV8504PW33R2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8504PW33R2G 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 NCV8504PW33R2G reliable?
The price and inventory of NCV8504PW33R2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8504PW33R2G is usually 5 days.
3.What payment methods are accepted for NCV8504PW33R2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8504PW33R2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8504PW33R2G?
NCV8504PW33R2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8504PW33R2G 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 NCV8504PW33R2G?
For technical support, including NCV8504PW33R2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8504PW33R2G requirements.
6.How does Aetrix verify that NCV8504PW33R2G is sourced from the original manufacturer or authorized distributors?
All NCV8504PW33R2G 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 NCV8504PW33R2G meets industry standards.
7.What is the process for return or replacement of NCV8504PW33R2G?
All NCV8504PW33R2G units undergo pre-shipment inspection (PSI). If there is an issue with NCV8504PW33R2G, 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 NCV8504PW33R2G part is unused and in its original packaging.
Return procedure for NCV8504PW33R2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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