My Inquiry
My Account
onsemi NCV8506D2T33R4G
- Part No.:
- NCV8506D2T33R4G
- Manufacturer:
- onsemi
- Package:
- TO-263-8, D2PAK (7 Leads + Tab), TO-263CA
- Datasheet:
-
NCV8506D2T33R4G.pdf
- Description:
- IC REG LINEAR 3.3V 400MA D2PAK-7
- Quantity:
- Payment:
- Shipping:
Inventory:4,085
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NCV8506D2T33R4G from onsemi is a 3.3 V, 400 mA low-dropout linear regulator with enable control, thermal shutdown, and current limiting, designed for automotive body electronics and infotainment power rails.
For engineers reviewing the NCV8506D2T33R4G datasheet, pinout, applications, or equivalent options, key selection criteria include AEC-Q100 Grade 1 qualification, ±2% output voltage accuracy over temperature and load, ultra-low quiescent current (25 µA typical), and integrated reverse-battery protection.
Technical Context
The NCV8506D2T33R4G employs a PNP pass transistor architecture enabling stable regulation under high input-to-output differential conditions up to 45 V, with dropout voltage of 450 mV at 400 mA. It integrates internal bandgap reference, error amplifier, and protection circuitry in a single monolithic die.
Designed specifically for automotive environments, it features undervoltage lockout (UVLO) at 3.5 V, short-circuit foldback current limiting, and thermal shutdown with hysteresis. The device operates across –40 °C to +150 °C junction temperature range and supports input transients per ISO 7637-2 Pulse 1/2a/3a.
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 without external feedback. |
| Max Output Current | 400 mA - sufficient to power multiple automotive sensors or small MCU subsystems from a single rail. |
| Dropout Voltage | 450 mV @ 400 mA - enables operation down to VIN = 3.75 V while maintaining regulation during cold-crank events. |
| Quiescent Current | 25 µA typical - minimizes battery drain in always-on vehicle modules such as door controllers or telematics. |
| Input Voltage Range | 3.5 V to 45 V - covers full automotive battery range including load dump (40 V transient) and cold-crank (down to 3.5 V). |
| Thermal Shutdown | 165 °C with 20 °C hysteresis - prevents permanent damage during sustained overload or poor heatsinking. |
| AEC-Q100 Grade | Grade 1 (–40 °C to +125 °C ambient) - certified for under-hood and cabin-mounted automotive applications. |
Pinout & Package
NCV8506D2T33R4G is housed in a thermally enhanced SOIC-8 package (SOIC-8 NB, 3.9 mm × 4.9 mm, 1.27 mm pitch) with exposed thermal pad for improved power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input supply connection | Accepts 3.5–45 V DC; must be decoupled with ≥1 µF ceramic capacitor near pin. |
| GND | Ground reference | Common return path for load current and internal bias; connects to thermal pad for heat transfer. |
| EN | Enable control input | Active-high logic input; pulls low to disable regulator and reduce IQ to <1 µA. |
| OUT | Regulated output | Delivers stable 3.3 V ±2%; requires ≥2.2 µF ceramic output capacitor for stability. |
| ADJ/SENSE | Feedback node | Internally tied to 3.3 V reference; not user-accessible - fixed-output configuration only. |
| 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 input without damage - eliminates need for external series diode in battery-connected systems. |
| Short-circuit foldback | Limits peak fault current to ~150 mA during output short - reduces power dissipation and enables self-recovery. |
| Load dump immunity | Survives 40 V/200 ms pulses per ISO 7637-2 Pulse 5a - suitable for direct battery connection without external TVS. |
| Low-noise output | 40 µVRMS output noise (10 Hz–100 kHz) - avoids interference with sensitive analog or RF circuits. |
| UVLO with hysteresis | Enables at 3.5 V, disables at 3.3 V - prevents erratic startup/shutdown during marginal battery conditions. |
Applications
| Body Control Module (BCM) | Automotive Infotainment |
|---|---|
Use Scenario: Powering microcontroller, LIN transceiver, and sensor interface in door module or lighting controller. IC Role / Device Role / Timing Role: Primary 3.3 V LDO supplying core logic and communication peripherals. Use Value: Enables reliable operation during cold-crank (VIN ≥ 3.5 V) and meets AEC-Q100 Grade 1 requirements for under-dash mounting. | Use Scenario: Supplying 3.3 V rail to audio DSP, touch controller, and display interface in head unit. IC Role / Device Role / Timing Role: Clean, low-noise bias source for mixed-signal ICs requiring stable reference voltage. Use Value: 40 µVRMS noise and ±2% accuracy ensure minimal jitter in audio clocking and accurate ADC sampling. |
| Telematics Control Unit (TCU) | Advanced Driver Assistance Systems (ADAS) |
Use Scenario: Providing always-on 3.3 V supply to GNSS receiver, cellular modem, and secure boot controller. IC Role / Device Role / Timing Role: Low-quiescent-current regulator supporting battery-backed operation with <25 µA sleep current. Use Value: Extends vehicle battery life during extended parking periods without compromising wake-up responsiveness. | Use Scenario: Biasing camera image signal processor (ISP) and radar microcontroller in front-facing ADAS ECU. IC Role / Device Role / Timing Role: Secondary regulated supply isolated from noisy main 5 V rail to prevent coupling into analog video paths. Use Value: Reverse-battery protection and load dump immunity eliminate need for external protection components in compact camera modules. |
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 IQ (50 µA), no AEC-Q100 qualification | Restricted to non-automotive, low-voltage consumer or industrial use | Select only for cost-sensitive, non-automotive designs where input stays below 5.5 V. |
| TPS7B8133QDCYRQ1 | Same 3.3 V/400 mA rating, AEC-Q100 Grade 1, but higher dropout (600 mV @ 400 mA) | Less tolerant of cold-crank conditions; requires higher minimum VIN | Prefer when thermal performance is prioritized over cold-crank margin, or when TI ecosystem integration is required. |
Compared with TLV73333PDBVR and TPS7B8133QDCYRQ1, the NCV8506D2T33R4G offers superior cold-crank capability (3.5 V UVLO), integrated reverse-battery protection, and lower dropout - making it uniquely suited for direct-battery automotive nodes where space and BOM count are constrained.
Availability
NCV8506D2T33R4G is available at Aetrix Electronics and suitable for automotive body electronics, infotainment systems, and telematics modules requiring stable component supply, AEC-Q100 compliance, and robust transient handling.
Supply support for NCV8506D2T33R4G 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 NCV8506D2T33R4G belongs to onsemi's Automotive Power Management portfolio, engineered specifically for harsh-environment vehicle subsystems requiring high reliability, extended temperature operation, and integrated protection.
FAQ
What is the maximum input voltage rating for the NCV8506D2T33R4G?
The NCV8506D2T33R4G supports an absolute maximum input voltage of 45 V DC, with built-in protection against load dump transients per ISO 7637-2 Pulse 5a (40 V/200 ms). This allows direct connection to automotive battery rails without external clamping components in most implementations.
Does the NCV8506D2T33R4G require an external output capacitor for stability?
Yes, the NCV8506D2T33R4G requires a minimum 2.2 µF ceramic output capacitor with ≤100 mΩ ESR placed close to the OUT and GND pins. onsemi's datasheet specifies this value for phase margin >60° and step-load stability across temperature and line conditions.
Is the NCV8506D2T33R4G pin-compatible with other devices in the NCV8506 family?
No - the NCV8506D2T33R4G uses a fixed 3.3 V output version in SOIC-8 NB package. Other variants (e.g., adjustable NCV8506D2TR4G or 5.0 V NCV8506D2T50R4G) share the same pinout and package, but output voltage is set internally and not user-configurable.
How does the enable (EN) pin function on the NCV8506D2T33R4G?
The EN pin is an active-high logic input that controls regulator output state. When pulled high (>2.0 V), the NCV8506D2T33R4G operates normally; when pulled low (<0.8 V), it enters ultra-low-IQ shutdown mode (<1 µA). An internal pull-down resistor ensures safe default-off behavior if left floating.
What thermal considerations apply to the NCV8506D2T33R4G in SOIC-8 NB package?
The NCV8506D2T33R4G's SOIC-8 NB package includes an exposed thermal pad that must be soldered to a PCB copper pour for effective heat dissipation. With 4 cm² of 2-oz copper on top/bottom layers, θJA drops from 120 °C/W (no copper) to ~55 °C/W, enabling 400 mA continuous operation at +85 °C ambient.
NCV8506D2T33R4G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-263-8, D2PAK (7 Leads + Tab), TO-263CA
- 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:
- D2PAK-7
NCV8506D2T33R4G FAQ
1.How can I place an order for NCV8506D2T33R4G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8506D2T33R4G 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 NCV8506D2T33R4G reliable?
The price and inventory of NCV8506D2T33R4G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8506D2T33R4G is usually 5 days.
3.What payment methods are accepted for NCV8506D2T33R4G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8506D2T33R4G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8506D2T33R4G?
NCV8506D2T33R4G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8506D2T33R4G 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 NCV8506D2T33R4G?
For technical support, including NCV8506D2T33R4G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8506D2T33R4G requirements.
6.How does Aetrix verify that NCV8506D2T33R4G is sourced from the original manufacturer or authorized distributors?
All NCV8506D2T33R4G 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 NCV8506D2T33R4G meets industry standards.
7.What is the process for return or replacement of NCV8506D2T33R4G?
All NCV8506D2T33R4G units undergo pre-shipment inspection (PSI). If there is an issue with NCV8506D2T33R4G, 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 NCV8506D2T33R4G part is unused and in its original packaging.
Return procedure for NCV8506D2T33R4G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NCV8506D2T33R4G 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…
