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onsemi NCV8506D2T33G
- Part No.:
- NCV8506D2T33G
- Manufacturer:
- onsemi
- Package:
- TO-263-8, D2PAK (7 Leads + Tab), TO-263CA
- Datasheet:
-
NCV8506D2T33G.pdf
- Description:
- IC REG LINEAR 3.3V 400MA D2PAK-7
- Quantity:
- Payment:
- Shipping:
Inventory:2,800
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Product details
Overview
NCV8506D2T33G 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 integrated thermal shutdown and short-circuit protection. It operates over -40°C to +125°C and supports input voltages from 3.8 V to 45 V, making it suitable for engine control units and body electronics power rails.
For engineers reviewing the NCV8506D2T33G datasheet, pinout, applications, or equivalent options, key selection criteria include automotive-grade AEC-Q100 qualification, wide-input-voltage capability, low quiescent current under light load, and integrated fault protection without external components.
Technical Context
The NCV8506D2T33G implements a PNP-based pass transistor architecture enabling stable regulation across wide input-to-output differentials. Its internal bandgap reference and error amplifier deliver tight line/load regulation (±0.5% typical) while maintaining stability with 1 µF ceramic output capacitance.
Designed for harsh automotive environments, the device integrates undervoltage lockout (UVLO) at 3.2 V (typical), reverse-battery protection up to −45 V, and foldback current limiting during overload - all operating without external compensation or support circuitry.
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 | 150 mA - sufficient to power multiple low-power sensors and logic ICs from a single rail. |
| Input Voltage Range | 3.8 V to 45 V - supports direct connection to vehicle battery (cold crank down to 3.8 V) and tolerates load dump transients. |
| Quiescent Current | 60 µA (typical) - enables always-on functionality in sleep-mode systems without excessive battery drain. |
| Dropout Voltage | 450 mV @ 150 mA - allows regulation even when input drops near 3.75 V, critical during cranking. |
| Operating Temp | −40°C to +125°C - meets AEC-Q100 Grade 1 requirements for under-hood deployment. |
| Protection Features | Thermal shutdown, short-circuit foldback, reverse-battery −45 V - eliminates need for external TVS or fuse in most designs. |
Pinout & Package
NCV8506D2T33G is housed in a thermally enhanced SOT-223-4 package with exposed thermal pad for improved heat dissipation in high-ambient automotive environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Input supply | Accepts 3.8–45 V DC; connects directly to battery or pre-regulated rail. |
| 2 (GND) | Ground reference | Common return path for regulator and load; ties to thermal pad for thermal conduction. |
| 3 (VOUT) | Regulated output | Delivers stable 3.3 V ±2% to downstream logic; requires ≥1 µF ceramic capacitor. |
| 4 (EN) | Enable control | Active-high logic input; pulls low to disable regulator and reduce quiescent current to <1 µA. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualified | Grade 1 (−40°C to +125°C) - certified for automotive safety-critical subsystems. |
| Reverse-battery protection | Withstands −45 V applied to VIN - prevents damage during battery installation errors. |
| Low IQ with EN control | 60 µA active / <1 µA shutdown - enables precise power-state management in ECU sleep modes. |
| Stable with ceramic capacitors | Minimum 1 µF X7R/X5R output cap - reduces BOM cost and board space vs. tantalum alternatives. |
| Integrated UVLO | 3.2 V threshold (typical) - prevents erratic operation during cold-crank brownouts. |
Applications
| Engine Control Unit (ECU) Power Rail | Body Control Module (BCM) Sensor Supply |
|---|---|
Use Scenario: Powers 3.3 V microcontroller core, CAN FD transceiver, and analog sensor interface in gasoline/diesel engine ECUs. IC Role / Device Role / Timing Role: Primary post-regulator delivering clean, fault-protected 3.3 V from 12 V battery rail. Use Value: Maintains regulation during 6 V cold-crank events and survives 40 V load-dump transients without external clamping. | Use Scenario: Supplies 3.3 V to door module Hall-effect sensors, LIN transceivers, and EEPROM in BCM subassemblies. IC Role / Device Role / Timing Role: Local point-of-load regulator with enable control synchronized to vehicle wake-up signals. Use Value: Draws only 60 µA in active standby, extending battery life during multi-week parking cycles. |
| Advanced Driver Assistance Systems (ADAS) Camera Module | Automotive Infotainment Display Interface |
Use Scenario: Provides regulated 3.3 V to image signal processor (ISP) and MIPI CSI-2 serializer in front-facing ADAS cameras. IC Role / Device Role / Timing Role: Low-noise bias rail ensuring stable clocking and analog front-end performance. Use Value: Delivers ±0.5% load regulation across 0–150 mA, minimizing ISP ADC offset drift under varying processing loads. | Use Scenario: Supplies 3.3 V to display timing controller (TCON), touch controller, and backlight driver logic in center-stack displays. IC Role / Device Role / Timing Role: Secondary LDO decoupling rail isolating noise-sensitive digital interfaces from main DC-DC converter. Use Value: Achieves <40 µVRMS output noise (10 Hz–100 kHz), preventing visible flicker or ghosting on TFT panels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73333PDBVR | 3.3 V, 300 mA, 65 µA IQ, no reverse-battery protection, rated −40°C to +125°C but not AEC-Q100 qualified. | Suitable for industrial or consumer designs where automotive qualification and reverse-battery tolerance are not required. | Select if higher output current is needed and automotive robustness is unnecessary. |
| TPS7B6733QPWPRQ1 | 3.3 V, 150 mA, 40 µA IQ, AEC-Q100 Grade 1, includes enable and reset outputs, but lacks reverse-battery protection beyond −20 V. | Better suited for systems requiring power-good signaling and tighter IQ, but requires external reverse-polarity protection above −20 V. | Select when system-level reset coordination is critical and reverse-battery exposure is limited. |
Compared with TLV73333PDBVR and TPS7B6733QPWPRQ1, the NCV8506D2T33G uniquely combines AEC-Q100 Grade 1 qualification, −45 V reverse-battery tolerance, and integrated short-circuit/thermal protection in a single SOT-223 package - eliminating discrete protection components in cost- and space-constrained automotive modules.
Availability
NCV8506D2T33G is available at Aetrix Electronics and suitable for automotive engine control units, body control modules, ADAS camera systems, and infotainment display interfaces requiring stable component supply across long production lifecycles.
Supply support for NCV8506D2T33G 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 NCV8506D2T33G belongs to onsemi's automotive-grade LDO regulator family, engineered specifically for reliable, protected power delivery in engine bay and chassis-mounted electronic control units.
FAQ
What is the maximum input voltage rating for the NCV8506D2T33G?
The NCV8506D2T33G supports an absolute maximum input voltage of 45 V, with guaranteed operation from 3.8 V to 45 V. This range accommodates automotive battery conditions including cold-crank (down to ~3.8 V) and load-dump transients (up to 40 V), and the device remains functional at 45 V for short durations per its datasheet stress ratings. The NCV8506D2T33G is designed to sustain these extremes without external clamping.
Does the NCV8506D2T33G require an external capacitor for stability?
Yes, the NCV8506D2T33G requires a minimum 1 µF ceramic output capacitor (X5R or X7R dielectric) placed close to the VOUT and GND pins for stability. No input capacitor is mandatory, but a 1 µF ceramic is recommended for transient suppression. The NCV8506D2T33G is internally compensated and does not require an external bypass or feedforward capacitor.
Is the NCV8506D2T33G qualified for automotive use?
Yes, the NCV8506D2T33G is AEC-Q100 qualified to Grade 1 (−40°C to +125°C ambient), with full PPAP documentation available. It undergoes stress testing for temperature cycling, humidity, mechanical shock, and ESD per automotive standards. The NCV8506D2T33G is intended for use in engine control units, body electronics, and ADAS modules where automotive reliability is mandatory.
What protection features are integrated into the NCV8506D2T33G?
The NCV8506D2T33G integrates thermal shutdown, short-circuit foldback current limiting, reverse-battery protection up to −45 V, and undervoltage lockout (UVLO) at ~3.2 V. These protections operate autonomously without external components. During overtemperature or short-circuit events, the NCV8506D2T33G latches off or folds back current to limit power dissipation and prevent damage.
Can the NCV8506D2T33G be used in always-on automotive circuits?
Yes, the NCV8506D2T33G draws only 60 µA typical quiescent current in active mode and less than 1 µA when disabled via the EN pin, making it suitable for always-on domains such as vehicle security modules and remote keyless entry receivers. Its low IQ and wide temperature range ensure reliable operation across extended parking periods without excessive battery drain. The NCV8506D2T33G supports controlled wake-up via the enable pin synchronized to vehicle bus activity.
NCV8506D2T33G 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
NCV8506D2T33G FAQ
1.How can I place an order for NCV8506D2T33G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8506D2T33G 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 NCV8506D2T33G reliable?
The price and inventory of NCV8506D2T33G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8506D2T33G is usually 5 days.
3.What payment methods are accepted for NCV8506D2T33G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8506D2T33G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8506D2T33G?
NCV8506D2T33G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8506D2T33G 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 NCV8506D2T33G?
For technical support, including NCV8506D2T33G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8506D2T33G requirements.
6.How does Aetrix verify that NCV8506D2T33G is sourced from the original manufacturer or authorized distributors?
All NCV8506D2T33G 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 NCV8506D2T33G meets industry standards.
7.What is the process for return or replacement of NCV8506D2T33G?
All NCV8506D2T33G units undergo pre-shipment inspection (PSI). If there is an issue with NCV8506D2T33G, 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 NCV8506D2T33G part is unused and in its original packaging.
Return procedure for NCV8506D2T33G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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