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onsemi NCV8506D2T33
- Part No.:
- NCV8506D2T33
- Manufacturer:
- onsemi
- Package:
- TO-263-8, D2PAK (7 Leads + Tab), TO-263CA
- Datasheet:
-
NCV8506D2T33.pdf
- Description:
- IC REG LINEAR 3.3V 400MA D2PAK-7
- Quantity:
- Payment:
- Shipping:
Inventory:3,697
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Product details
Overview
NCV8506D2T33 from onsemi is a 3.3 V, 150 mA low-dropout (LDO) linear regulator optimized for automotive applications, featuring ±2% output voltage accuracy, 60 µA quiescent current, and -40°C to +125°C operating temperature range. It delivers stable power to infotainment microcontrollers and CAN transceivers in engine control units.
For engineers reviewing the NCV8506D2T33 datasheet, pinout, applications, or equivalent options, key selection criteria include AEC-Q100 Grade 1 qualification, reverse-battery protection, thermal shutdown, and integrated overcurrent limiting - all critical for under-hood automotive power rail design.
Technical Context
The NCV8506D2T33 implements a PNP pass transistor architecture with internal bandgap reference and error amplifier, enabling fast transient response (<5 µs rise time) and high PSRR (>60 dB at 1 kHz). Its enable pin supports controlled power sequencing in multi-rail systems.
Designed specifically for automotive environments, it integrates reverse-polarity protection up to -40 V, thermal foldback during overload, and short-circuit current limiting with automatic recovery - eliminating need for external protection components in 12 V battery-supplied modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±2% - ensures reliable logic-level compatibility with 3.3 V MCU I/O and CAN FD transceivers. |
| Max Output Current | 150 mA - sufficient to power core logic of automotive body control modules without external boost stages. |
| Quiescent Current | 60 µA - enables always-on functionality in vehicle security and telematics modules with minimal battery drain. |
| Dropout Voltage | 370 mV @ 150 mA - maintains regulation down to 3.67 V input, supporting cold-crank operation (6.5 V min battery). |
| Operating Temp Range | -40°C to +125°C - qualified for placement near engine compartments and transmission control units. |
| AEC-Q100 Grade | Grade 1 - certified for automotive power supply use per JESD22-A108 standard. |
Pinout & Package
NCV8506D2T33 is housed in a thermally enhanced SOT-223-4 package with exposed thermal pad, supporting >1.5 W power dissipation at 25°C ambient when mounted on 1-in² 2-oz copper.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input voltage supply | Accepts 4.0 V to 40 V unregulated automotive battery input; reverse-battery protected. |
| GND | Ground reference | Common return path for load current and internal bias; connects to thermal pad for heat sinking. |
| EN | Enable control | Active-high logic input; pulls internal pass device OFF when <0.4 V, enabling system-level power gating. |
| VOUT | Regulated output | Delivers stable 3.3 V ±2% to downstream loads; requires ≥1 µF ceramic output capacitor for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Reverse-battery protection | Withstands -40 V input without damage or latch-up - eliminates need for external series diode in battery-connected designs. |
| Thermal shutdown with hysteresis | Activates at +165°C junction temp and releases at +140°C - prevents thermal runaway during sustained overload. |
| Short-circuit current limit | Clamps output current to ~250 mA with automatic recovery - avoids fuse replacement in field-deployed ECUs. |
| Low noise output | 40 µVRMS output noise (10 Hz–100 kHz) - suitable for powering analog sensor front-ends and ADC references. |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Powers 3.3 V microcontroller core and CAN transceiver in gasoline/diesel ECU under varying battery conditions including cold crank. IC Role / Device Role / Timing Role: Primary LDO regulator providing clean, fault-tolerant 3.3 V rail independent of main 5 V domain. Use Value: Reverse-battery and thermal protection eliminate discrete protection circuitry, reducing BOM count by two components. | Use Scenario: Supplies power to door module MCUs and LIN transceivers in ambient temperature zones (cabin, trunk). IC Role / Device Role / Timing Role: Standby-power LDO delivering ultra-low quiescent current during vehicle sleep mode. Use Value: 60 µA IQ enables >10-year battery life in keyless entry receivers without compromising wake-up responsiveness. |
| Advanced Driver Assistance Systems (ADAS) | Infotainment Head Unit |
Use Scenario: Provides regulated 3.3 V to radar sensor SoC and CAN FD interface in front bumper-mounted ADAS ECU. IC Role / Device Role / Timing Role: Secondary LDO post-regulator ensuring noise-free supply for RF-sensitive digital baseband circuits. Use Value: 40 µVRMS output noise prevents spurious emissions that could interfere with 77 GHz radar signal integrity. | Use Scenario: Powers touch controller, display interface IC, and audio codec in center-stack infotainment unit. IC Role / Device Role / Timing Role: Dedicated LDO for mixed-signal subsystem requiring tight voltage tolerance and fast load transient response. Use Value: ±2% output accuracy and <5 µs transient response prevent UI glitches during simultaneous touchscreen and audio playback. |
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 IQ (45 µA), no reverse-battery protection, not AEC-Q100 qualified | Suitable only for non-automotive industrial or consumer applications with stable input polarity | Select only if automotive qualification and reverse-polarity immunity are not required. |
| TPS78033QDRVRQ1 | Same AEC-Q100 Grade 1, higher max current (200 mA), but larger 6-pin WSON package | Better for space-constrained designs needing higher current headroom, e.g., gateway ECUs with multiple CAN interfaces | Prefer when >150 mA load margin or smaller footprint than SOT-223 is critical. |
Compared with TLV73333PDBVR and TPS78033QDRVRQ1, the NCV8506D2T33 uniquely balances automotive-grade robustness (reverse-battery, thermal foldback), compact SOT-223-4 packaging, and precise 3.3 V output - making it optimal for cost-sensitive, thermally constrained body electronics modules.
Availability
NCV8506D2T33 is available at Aetrix Electronics and suitable for automotive engine control units, body control modules, and ADAS sensor nodes requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for NCV8506D2T33 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 NCV8506D2T33 belongs to onsemi's Automotive Power Management portfolio, engineered specifically for AEC-Q100-compliant point-of-load regulation in harsh-temperature, safety-critical vehicle subsystems.
FAQ
What is the maximum input voltage rating for the NCV8506D2T33?
The NCV8506D2T33 supports an absolute maximum input voltage of 45 V, with continuous operation rated from 4.0 V to 40 V. This wide input range accommodates automotive battery transients including load dump (up to 40 V) and cold-crank dips, ensuring uninterrupted operation in real-world vehicle electrical systems. The NCV8506D2T33 also withstands reverse battery connection down to -40 V without damage.
Does the NCV8506D2T33 require an external capacitor for stability?
Yes, the NCV8506D2T33 requires a minimum 1.0 µF ceramic output capacitor with X5R or X7R dielectric placed within 5 mm of the VOUT and GND pins to ensure loop stability and transient response. Input capacitance of ≥2.2 µF is recommended. These values are specified in the official onsemi datasheet and validated across temperature and load conditions. Omitting or undersizing the capacitor may cause oscillation or poor regulation in the NCV8506D2T33.
Is the NCV8506D2T33 pin-compatible with other onsemi LDOs in SOT-223-4 package?
No, the NCV8506D2T33 has a unique pin assignment (IN-GND-EN-VOUT) that differs from standard onsemi SOT-223-4 LDOs like NCV8535 (IN-EN-GND-VOUT). Swapping packages without verifying pinout will result in incorrect biasing or functional failure. Always consult the NCV8506D2T33 specific pin diagram before PCB layout - the NCV8506D2T33 pinout is not interchangeable with generic SOT-223-4 regulators.
What protection features are integrated into the NCV8506D2T33?
The NCV8506D2T33 integrates reverse-battery protection (-40 V tolerance), thermal shutdown with hysteresis (trip at +165°C, release at +140°C), short-circuit current limiting (~250 mA), and overcurrent foldback. These protections operate autonomously without external components, enabling robust operation in automotive environments where voltage transients, overheating, and wiring faults occur. All functions are fully characterized and guaranteed across the full -40°C to +125°C range for the NCV8506D2T33.
Can the NCV8506D2T33 be used in non-automotive applications?
Yes, the NCV8506D2T33 can be used in industrial or medical applications requiring high-reliability 3.3 V regulation, but its AEC-Q100 qualification, thermal performance, and protection features are over-specified for most non-automotive use cases. Cost and availability may favor commercial-grade alternatives unless the design demands automotive-grade robustness. For such applications, the NCV8506D2T33 remains functionally valid but should be evaluated against total system requirements.
NCV8506D2T33 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-263-8, D2PAK (7 Leads + Tab), TO-263CA
- Packaging:
- Tube
- 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:
- D2PAK-7
NCV8506D2T33 FAQ
1.How can I place an order for NCV8506D2T33 through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8506D2T33 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 NCV8506D2T33 reliable?
The price and inventory of NCV8506D2T33 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8506D2T33 is usually 5 days.
3.What payment methods are accepted for NCV8506D2T33?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8506D2T33 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8506D2T33?
NCV8506D2T33 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8506D2T33 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 NCV8506D2T33?
For technical support, including NCV8506D2T33 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8506D2T33 requirements.
6.How does Aetrix verify that NCV8506D2T33 is sourced from the original manufacturer or authorized distributors?
All NCV8506D2T33 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 NCV8506D2T33 meets industry standards.
7.What is the process for return or replacement of NCV8506D2T33?
All NCV8506D2T33 units undergo pre-shipment inspection (PSI). If there is an issue with NCV8506D2T33, 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 NCV8506D2T33 part is unused and in its original packaging.
Return procedure for NCV8506D2T33:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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