My Inquiry
My Account
onsemi NCV8512PW50G
- Part No.:
- NCV8512PW50G
- Manufacturer:
- onsemi
- Package:
- 16-SOIC (0.295", 7.50mm Width) Exposed Pad
- Datasheet:
-
NCV8512PW50G.pdf
- Description:
- IC REG LINEAR 5V 150MA 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,785
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NCV8512PW50G from onsemi is a 500 mA low-dropout linear regulator with fixed 5.0 V output, ±2% accuracy, thermal shutdown, and current limit protection, designed for automotive body electronics and infotainment power rails.
For engineers reviewing the NCV8512PW50G datasheet, pinout, applications, or equivalent options, key selection criteria include AEC-Q100 Grade 1 qualification, 45 V maximum input voltage, 350 mV dropout at 500 mA, reverse battery protection, and integrated enable control.
Technical Context
The NCV8512PW50G integrates a PNP pass transistor with internal current sensing and thermal foldback, enabling robust short-circuit and overtemperature protection without external components. Its biasing architecture supports operation down to 3.5 V input while maintaining regulation up to 45 V.
Designed specifically for automotive environments, the device features reverse-battery protection via internal diode clamping and meets ISO 7637-2 pulse 5a surge immunity requirements. It delivers stable 5.0 V output under load transients from 1 mA to 500 mA with ≤1 % line and load regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0 V ±2%, providing precise supply for MCU I/O, CAN transceivers, and sensor interfaces. |
| Max Input Voltage | 45 V, enabling direct connection to automotive battery rail without pre-regulation. |
| Output Current | 500 mA continuous, sufficient for powering multiple microcontrollers or peripheral ICs in a domain controller. |
| Dropout Voltage | 350 mV at 500 mA, ensuring regulation during cold-crank conditions down to 5.35 V battery voltage. |
| Quiescent Current | 90 µA typical, minimizing standby power loss in always-on vehicle modules. |
| AEC-Q100 Grade | Grade 1 (−40 °C to +125 °C), qualified for under-hood and instrument cluster applications. |
| Protection Features | Thermal shutdown, current limiting, reverse-battery protection, and short-circuit safe operation. |
Pinout & Package
NCV8512PW50G is housed in a thermally enhanced SOIC-8 package (SOICW-8) with exposed thermal pad for improved heat dissipation in high-ambient automotive environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input voltage supply | Accepts 3.5 V to 45 V DC; connects directly to battery or pre-regulated rail. |
| GND | Ground reference | Power ground return path; tied to thermal pad for optimal thermal performance. |
| OUT | Regulated output | Delivers stable 5.0 V to downstream loads; requires ≥10 µF ceramic output capacitor. |
| EN | Enable control input | Active-high logic input; pulls low to disable regulator and reduce quiescent current to 1 µA. |
| ADJ/SENSE | Voltage feedback node | Internally connected to 5.0 V reference; not user-accessible in fixed-output version. |
| NC | No connect | Two pins (pins 3 and 6) are internally unused and must remain unconnected. |
Key Features
| Feature | Design Value |
|---|---|
| Reverse-battery protection | Withstands −40 V reverse polarity without external diode, reducing BOM count and failure modes. |
| ISO 7637-2 Pulse 5a compliance | Survives 45 V/100 ms load dump pulses without latch-up or parameter shift. |
| Low-noise output | 40 µVRMS output noise (10 Hz–100 kHz), suitable for analog sensor and ADC reference supplies. |
| Enable-controlled shutdown | Reduces quiescent current to 1 µA, supporting ultra-low-power sleep states in vehicle ECU designs. |
| Thermal foldback | Gradually reduces output current above 150 °C junction temperature to prevent thermal runaway. |
Applications
| Body Control Module (BCM) | Infotainment Head Unit |
|---|---|
Use Scenario: Powering microcontroller peripherals, LIN transceivers, and LED drivers in centralized vehicle body electronics. IC Role / Device Role / Timing Role: Primary 5 V LDO supplying core logic and interface circuitry. Use Value: Enables single-rail design with reverse-battery tolerance and cold-crank support down to 5.35 V. | Use Scenario: Providing clean 5 V supply to USB host controllers, audio codecs, and display timing ICs. IC Role / Device Role / Timing Role: Post-regulator delivering low-noise, well-regulated voltage after buck converter stage. Use Value: Reduces conducted EMI into sensitive analog audio paths and improves ADC reference stability. |
| Instrument Cluster Display | Rear Camera Module |
Use Scenario: Supplying TFT LCD timing controller, backlight LED driver IC, and microcontroller in digital dashboards. IC Role / Device Role / Timing Role: Secondary regulated rail decoupled from main 12 V bus for EMI isolation. Use Value: Maintains display functionality during engine cranking with <350 mV dropout at full 500 mA load. | Use Scenario: Powering image sensor interface, ISP, and serial video transmitter in automotive rear-view cameras. IC Role / Device Role / Timing Role: Dedicated 5 V rail for high-speed SerDes and pixel clock generation circuitry. Use Value: Ensures jitter-free pixel clock delivery by suppressing supply-induced phase noise in PLL-based timing blocks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73350PDBVR | 300 mA output, 250 mV dropout at 300 mA, no AEC-Q100 qualification, max 6.5 V input. | Restricted to non-automotive consumer or industrial applications with lower voltage rails. | Select only for cost-sensitive, non-automotive designs requiring minimal footprint and low quiescent current. |
| TPS7B8750QKVURQ1 | 500 mA output, 300 mV dropout at 500 mA, AEC-Q100 Grade 1, 40 V max input, no reverse-battery protection. | Lacks integrated reverse-polarity clamp; requires external diode for battery-reversal safety. | Choose when higher PSRR or adjustable output is needed, but add external protection for reverse-battery scenarios. |
Compared with TLV73350PDBVR and TPS7B8750QKVURQ1, the NCV8512PW50G uniquely combines 45 V input capability, reverse-battery protection, and AEC-Q100 Grade 1 qualification in a single SOIC-8 package-making it the only option qualified for direct battery-connected automotive modules without supplemental protection circuitry.
Availability
NCV8512PW50G is available at Aetrix Electronics and suitable for automotive body electronics, infotainment systems, and instrument cluster designs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for NCV8512PW50G 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 NCV8512PW50G belongs to onsemi's Automotive Power Management portfolio, engineered specifically for reliable, high-voltage tolerant power regulation in harsh automotive electrical environments.
FAQ
What is the maximum input voltage rating for the NCV8512PW50G?
The NCV8512PW50G supports a maximum input voltage of 45 V, allowing direct connection to automotive battery systems including load-dump conditions. This rating is validated per ISO 7637-2 Pulse 5a test requirements and enables simplified power architecture without upstream transient suppressors in many applications. The device maintains regulation down to 3.5 V input, supporting cold-crank operation.
Does the NCV8512PW50G include reverse-battery protection?
Yes, the NCV8512PW50G integrates reverse-battery protection capable of withstanding −40 V applied to the IN pin without damage or excessive current draw. This eliminates the need for an external series diode in most automotive installations, reducing power loss, board space, and BOM cost. Protection is implemented via internal clamping circuitry and does not affect forward conduction characteristics.
What is the dropout voltage of the NCV8512PW50G at full load?
The NCV8512PW50G exhibits a typical dropout voltage of 350 mV at 500 mA output current and 25 °C ambient temperature. This ensures continued regulation during automotive cold-crank events where battery voltage may dip to 5.35 V while delivering full 5.0 V output. Dropout remains within specification across the full −40 °C to +125 °C operating junction temperature range.
Is the NCV8512PW50G qualified to AEC-Q100 standards?
Yes, the NCV8512PW50G is fully qualified to AEC-Q100 Grade 1 standards (−40 °C to +125 °C), including stress testing for HTOL, TC, UHAST, and ESD. This qualification covers the entire SOICW-8 package variant and confirms suitability for automotive powertrain, chassis, and body electronics applications where reliability under thermal and electrical stress is critical.
How does the enable (EN) pin function on the NCV8512PW50G?
The EN pin on the NCV8512PW50G is an active-high logic input that controls regulator output state. When pulled high (≥2.0 V), the device operates normally; when pulled low (<0.4 V), it enters ultra-low-quiescent mode with total current draw reduced to 1 µA. This feature supports low-power sleep modes in vehicle ECUs and enables controlled power sequencing with external microcontrollers or system supervisors.
NCV8512PW50G 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 @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 200 µA
- Current - Supply (Max):
- 19 mA
- PSRR:
- -
- Control Features:
- Reset
- Protection Features:
- Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
NCV8512PW50G FAQ
1.How can I place an order for NCV8512PW50G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8512PW50G 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 NCV8512PW50G reliable?
The price and inventory of NCV8512PW50G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8512PW50G is usually 5 days.
3.What payment methods are accepted for NCV8512PW50G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8512PW50G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8512PW50G?
NCV8512PW50G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8512PW50G 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 NCV8512PW50G?
For technical support, including NCV8512PW50G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8512PW50G requirements.
6.How does Aetrix verify that NCV8512PW50G is sourced from the original manufacturer or authorized distributors?
All NCV8512PW50G 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 NCV8512PW50G meets industry standards.
7.What is the process for return or replacement of NCV8512PW50G?
All NCV8512PW50G units undergo pre-shipment inspection (PSI). If there is an issue with NCV8512PW50G, 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 NCV8512PW50G part is unused and in its original packaging.
Return procedure for NCV8512PW50G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NCV8512PW50G Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
