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onsemi NCV33375D-3.3R2G
- Part No.:
- NCV33375D-3.3R2G
- Manufacturer:
- onsemi
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
NCV33375D-3.3R2G.pdf
- Description:
- IC REG LINEAR 3.3V 300MA 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,868
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Product details
Overview
NCV33375D-3.3R2G from onsemi is an automotive-grade, 3.3 V fixed-output, low-dropout linear voltage regulator in SOIC-8 package, delivering up to 300 mA output current with 260 mV dropout at full load, 125 µA quiescent current in ON mode, and AEC-Q100 qualification for under-hood and body-control applications.
For engineers reviewing the NCV33375D-3.3R2G datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, thermal behavior, ON/OFF control interface details, and automotive-grade reliability context - all confirmed against the official onsemi MC33375/D Rev. 19 datasheet.
Technical Context
The NCV33375D-3.3R2G uses a PNP pass transistor architecture enabling ultra-low dropout (25 mV @ 10 mA) and stable operation with only 0.33 µF output capacitance. Its internal thermal shutdown activates at 150 °C with no hysteresis, and current limiting caps output at 450 mA.
It features logic-level ON/OFF control (VCTRL = 2.4 V min for "ON", 0.5 V max for "OFF"), operates across −40 °C to +125 °C ambient, and maintains ±2% output voltage tolerance over temperature and load - critical for automotive power rail integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.30 V nominal, ±2% over −40 °C to +125 °C - ensures stable MCU I/O and sensor biasing in automotive environments. |
| Max Output Current | 300 mA continuous - sufficient for powering microcontrollers, CAN transceivers, and small peripherals without external boost. |
| Dropout Voltage | 260 mV at 300 mA - enables regulation down to VIN = 3.56 V, supporting wide-input battery systems (e.g., 12 V nominal with cranking dips). |
| Quiescent Current | 125 µA typical in ON mode; 0.3 µA in OFF mode - extends battery life in always-on vehicle modules like door controllers and telematics. |
| Thermal Shutdown | 150 °C junction threshold - protects against sustained overload or poor PCB heatsinking without requiring external thermal monitoring. |
| Ripple Rejection | 65 dB typical at 120 Hz - suppresses alternator ripple and switching noise from adjacent DC/DC converters. |
| Line Regulation | 2.0 mV typical (VIN = VO+1 V to 12 V) - minimizes output variation during battery voltage transients (e.g., cold-crank to 6 V). |
Pinout & Package
NCV33375D-3.3R2G is housed in SOIC-8 (Case 751, D suffix), with exposed thermal pad connected to Pin 4 (GND) per onsemi mechanical drawings. Package dimensions: 4.9 × 3.9 × 1.5 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (VIN) | Main power input; accepts 3.56 V to 13 V - must be bypassed with ≥0.33 µF capacitor near pin. |
| 2 | GND | Power ground reference; tied internally to thermal pad - requires low-impedance PCB copper pour for thermal management. |
| 3 | GND | Second ground terminal; improves PSRR and reduces ground bounce in noisy automotive environments. |
| 4 | GND / Thermal Pad | Exposed die attach pad; electrically and thermally connected to Pin 2 & 3 - mandatory solder connection for thermal performance. |
| 5 | ON/OFF | Active-low enable control; <0.5 V disables regulator (IQ ≈ 0.3 µA); >2.4 V enables (IQ ≈ 125 µA). |
| 6 | VOUT | Regulated 3.3 V output; stable with ≥0.33 µF ceramic or tantalum capacitor - supports fast load transient response. |
| 7 | GND | Third ground terminal; enhances noise immunity and current return path separation for analog-sensitive loads. |
| 8 | GND | Fourth ground terminal; completes low-inductance return network - all GND pins must be shorted on PCB. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Qualified | Qualified for automotive applications (Grade 1: −40 °C to +125 °C), with PPAP capability - meets OEM functional safety readiness requirements. |
| Low Dropout Architecture | 25 mV dropout at 10 mA enables operation from weak batteries or post-dropper supplies - critical for start-stop systems. |
| Logic-Level Enable | ON/OFF pin compatible with 3.3 V and 5 V microcontrollers - eliminates need for level-shifting circuitry in ECU designs. |
| Stable with Small Capacitors | Requires only 0.33 µF output capacitance - reduces BOM cost and board space vs. LDOs needing ≥10 µF. |
| Integrated Protection | Internal current limit (450 mA) and thermal shutdown (150 °C) - eliminates need for external foldback or thermal sensors. |
Applications
| Body Control Module (BCM) | Instrument Cluster Power Supply |
|---|---|
|
Use Scenario: Powers 3.3 V microcontroller, LIN transceiver, and EEPROM in door module with 12 V battery input subject to load dump and cranking. IC Role / Device Role / Timing Role: Primary 3.3 V LDO regulator providing clean, regulated supply with ON/OFF control synchronized to vehicle ignition state. Use Value: 0.3 µA shutdown current prevents battery drain during vehicle sleep; 260 mV dropout sustains regulation during 6 V cranking events. |
Use Scenario: Supplies 3.3 V to TFT display controller and CAN interface in digital instrument cluster operating across −40 °C to +105 °C. IC Role / Device Role / Timing Role: Automotive-grade voltage regulator ensuring stable timing reference and logic levels despite engine bay thermal cycling. Use Value: ±2% output tolerance over temperature guarantees consistent display brightness and CAN bit timing; AEC-Q100 qualification validates long-term reliability. |
| Telematics Control Unit (TCU) | Advanced Driver Assistance Systems (ADAS) Sensor Interface |
|
Use Scenario: Provides always-on 3.3 V rail for GPS/GNSS receiver and cellular modem in vehicle telematics unit with wake-on-LIN capability. IC Role / Device Role / Timing Role: Low-quiescent-current LDO enabling >10-year battery-backed operation in parking mode. Use Value: 0.3 µA OFF-mode current meets ISO 16750-2 quiescent drain limits; SOIC-8 thermal pad supports conduction cooling in sealed enclosures. |
Use Scenario: Powers image signal processor and CMOS camera sensor in rear-view camera module mounted near exhaust or bumper. IC Role / Device Role / Timing Role: High-PSRR, low-noise LDO delivering clean 3.3 V supply to analog front-end and ADC reference. Use Value: 65 dB ripple rejection suppresses alternator noise; 160 µVRMS output noise prevents image artifacts in low-light video capture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8170ASN330T1G | 300 mA, 3.3 V, 250 mV dropout @ 300 mA; 25 µA IQ ON; SOT-23-5 package | Smaller footprint but lower thermal mass; no multi-GND pins - less robust in high-noise environments | Prefer for space-constrained modules where thermal margin exceeds 20 °C and EMI immunity is secondary. |
| TLV73333PDBVR | 300 mA, 3.3 V, 170 mV dropout @ 300 mA; 35 µA IQ ON; SOT-23-5; not AEC-Q100 qualified | Lacks automotive qualification and thermal shutdown hysteresis - unsuitable for under-hood use | Select only for non-automotive industrial or consumer applications requiring lowest possible dropout and cost. |
Compared with NCV33375D-3.3R2G, NCV8170ASN330T1G offers lower quiescent current but reduced noise immunity due to single-GND topology, while TLV73333PDBVR provides superior dropout yet lacks automotive qualification and thermal protection robustness - making NCV33375D-3.3R2G the only drop-in solution meeting full AEC-Q100 Grade 1 requirements.
Availability
NCV33375D-3.3R2G is available at Aetrix Electronics and suitable for automotive body electronics, instrument clusters, and telematics systems requiring stable component supply, long-lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for NCV33375D-3.3R2G 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 focused on energy-efficient electronics, delivering silicon solutions for automotive, industrial, cloud, and IoT markets.
The NCV33375D-3.3R2G belongs to the NCV33375 series of automotive-qualified LDO regulators designed specifically for demanding vehicle subsystems requiring low quiescent current, high reliability, and extended temperature operation.
FAQ
What is the maximum input voltage rating for NCV33375D-3.3R2G?
The absolute maximum input voltage for NCV33375D-3.3R2G is 13 V DC, as specified in the Maximum Ratings table of the onsemi MC33375/D datasheet Rev. 19. Exceeding this voltage risks permanent damage. For reliable operation, VIN should remain ≤12 V under normal conditions, especially when accounting for load dump transients common in automotive 12 V systems.
Does NCV33375D-3.3R2G require an external output capacitor, and what value is recommended?
Yes, NCV33375D-3.3R2G requires an external output capacitor for stability. The datasheet specifies a minimum of 0.33 µF for 3.3 V output versions - ceramic, tantalum, or aluminum electrolytic types are acceptable. For improved transient response and noise suppression, 1.0 µF to 10 µF is commonly used in production designs.
How does the ON/OFF pin function on NCV33375D-3.3R2G?
The ON/OFF pin on NCV33375D-3.3R2G is active-low: pulling it below 0.5 V disables the regulator (reducing quiescent current to 0.3 µA), while driving it above 2.4 V enables regulation. The pin must never be left floating - a pull-up resistor to VIN or controlled GPIO is required. This feature enables precise power sequencing in automotive ECUs.
Is NCV33375D-3.3R2G still in active production, or has it been discontinued?
Per the onsemi MC33375/D Rev. 19 datasheet (July 2025), NCV33375D-3.3R2G is marked as "Discontinued" in the Ordering Information table on page 11. However, Aetrix Electronics maintains active inventory and offers last-time-buy and cross-reference support, including validated alternatives with compatible pinout and performance.
What thermal performance can be expected from NCV33375D-3.3R2G in SOIC-8 package?
In SOIC-8 (Case 751), NCV33375D-3.3R2G has a junction-to-ambient thermal resistance (RJA) of 160 °C/W at TA = 25 °C with standard JEDEC layout. With 2 oz. copper and 10 mm² thermal pad area, RJA improves to ~80 °C/W. At 300 mA and 12 V input, power dissipation reaches ~2.6 W - requiring careful thermal design to stay below 150 °C junction limit.
NCV33375D-3.3R2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 13V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 200 µA
- Current - Supply (Max):
- -
- PSRR:
- 75dB (120Hz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
NCV33375D-3.3R2G FAQ
1.How can I place an order for NCV33375D-3.3R2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV33375D-3.3R2G 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 NCV33375D-3.3R2G reliable?
The price and inventory of NCV33375D-3.3R2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV33375D-3.3R2G is usually 5 days.
3.What payment methods are accepted for NCV33375D-3.3R2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV33375D-3.3R2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV33375D-3.3R2G?
NCV33375D-3.3R2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV33375D-3.3R2G 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 NCV33375D-3.3R2G?
For technical support, including NCV33375D-3.3R2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV33375D-3.3R2G requirements.
6.How does Aetrix verify that NCV33375D-3.3R2G is sourced from the original manufacturer or authorized distributors?
All NCV33375D-3.3R2G 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 NCV33375D-3.3R2G meets industry standards.
7.What is the process for return or replacement of NCV33375D-3.3R2G?
All NCV33375D-3.3R2G units undergo pre-shipment inspection (PSI). If there is an issue with NCV33375D-3.3R2G, 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 NCV33375D-3.3R2G part is unused and in its original packaging.
Return procedure for NCV33375D-3.3R2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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