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onsemi NCV502SN33T1G
- Part No.:
- NCV502SN33T1G
- Manufacturer:
- onsemi
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
NCV502SN33T1G.pdf
- Description:
- IC REG LINEAR 3.3V 500MA 5TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,311
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Product details
Overview
NCV502SN33T1G from onsemi is an automotive-grade, fixed-output CMOS low-dropout linear regulator delivering 3.3 V at up to 80 mA with 40 µA typical quiescent current, ±2.0% output voltage accuracy, and operation across −40 °C to +125 °C - designed for battery-powered infotainment modules and ADAS sensor power rails.
For engineers reviewing the NCV502SN33T1G datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q100 qualification, TSOP-5 package thermal resistance (205 °C/W), enable-controlled standby mode, dropout voltage of 850 mV at 80 mA, and compatibility with low-ESR ceramic output capacitors.
Technical Context
The NCV502SN33T1G integrates a PMOS pass transistor, precision voltage reference, error amplifier, and protection circuitry (current limit and thermal shutdown). Its ultra-low IQ enables extended battery life in always-on automotive subsystems.
It operates with input voltages from 4.3 V to 12 V (ensuring ≥1.0 V headroom above 3.3 V output), supports logic-level enable control (no internal pull-up), and maintains regulation under load transients up to 80 mA with <0.8 mV/mA load regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.3 V ±2.0% - stable rail for MCU I/O, CAN transceivers, and camera sensors requiring tight tolerance. |
| Max Output Current | 80 mA - sufficient for powering microcontrollers, EEPROMs, and low-power RF modules without external boost. |
| Quiescent Current | 40 µA typical - enables >1-year battery standby in vehicle telematics and keyless entry receivers. |
| Dropout Voltage | 850 mV at 80 mA - allows operation down to 4.15 V input, compatible with degraded 5 V bus or cold-crank conditions. |
| Operating Temp Range | −40 °C to +125 °C - qualified per AEC-Q100 Grade 1 for under-hood and cabin-mounted ECUs. |
| Ripple Rejection | 55 dB at 1 kHz - suppresses switching noise from DC/DC converters feeding the LDO input. |
| Thermal Resistance | 205 °C/W (TSOP-5, 1 oz Cu) - requires minimal PCB copper area for thermal management in space-constrained modules. |
Pinout & Package
NCV502SN33T1G is housed in the TSOP-5 (SOT-23-5) surface-mount package (Case 483), measuring 3.00 × 1.50 × 0.95 mm with 0.95 mm pitch. The package is Pb-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - Vin | Positive power supply input | Accepts 4.3–12 V unregulated input; must be decoupled with ≥1.0 µF ceramic capacitor near pin. |
| 2 - GND | Power supply ground | Low-impedance return path; requires direct connection to PCB ground plane to minimize noise coupling. |
| 3 - Enable | Logic-controlled enable input | Pull high to Vin to activate regulator; pull ≤0.3 V to disable (IQ drops to 0.1 µA); no internal pull-up required. |
| 4 - N/C | No internal connection | Unbonded die pad - may be left floating or tied to GND for mechanical stability; no electrical function. |
| 5 - Vout | Regulated output voltage | Delivers 3.3 V ±2.0%; requires ≥1.0 µF ceramic output capacitor (X5R/X7R) placed adjacent to pin. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Qualified | Grade 1 (−40 °C to +125 °C) with PPAP capability - meets automotive reliability and traceability requirements. |
| Ultra-Low Quiescent Current | 40 µA typical active, 0.1 µA in shutdown - extends battery life in always-on vehicle networks (e.g., LIN gateway wake-up). |
| Stable with Ceramic Capacitors | No ESR minimum required - eliminates need for costly tantalum or polymer caps; supports compact 0603/0805 MLCCs. |
| Integrated Protection | Current limiting and thermal shutdown (trip ~160 °C) - prevents damage during short-circuit or overload events. |
| High PSRR | 55 dB at 1 kHz - rejects ripple from upstream buck converters, reducing need for additional filtering stages. |
Applications
| Infotainment Power Rail | ADAS Camera Sensor Supply |
|---|---|
|
Use Scenario: Providing clean 3.3 V to touchscreen controllers and audio codecs in automotive head units. IC Role / Device Role / Timing Role: Primary post-regulator converting 5 V domain to noise-sensitive analog/digital interface rail. Use Value: 180 µVrms output noise and 55 dB PSRR prevent audible buzz in audio paths and touch misreads. |
Use Scenario: Powering image signal processors (ISPs) and MIPI CSI-2 serializers in surround-view cameras. IC Role / Device Role / Timing Role: Low-noise, thermally robust local regulator ensuring stable clock domain reference for pixel data capture. Use Value: −40 °C to +125 °C operation and 850 mV dropout maintain timing integrity during engine heat soak and cold start. |
| Telematics Module Core Logic | Body Control Unit Subsystem |
|
Use Scenario: Supplying 3.3 V to cellular modem baseband processors and GNSS receivers in telematics control units. IC Role / Device Role / Timing Role: Always-on LDO enabling fast wake-from-sleep response while minimizing parasitic drain. Use Value: 40 µA IQ and enable-controlled shutdown reduce annual battery drain to <1.5 mAh - critical for disconnected vehicle monitoring. |
Use Scenario: Regulating power for LIN transceivers, door module MCUs, and ambient light sensors. IC Role / Device Role / Timing Role: Cost-optimized, footprint-efficient LDO replacing discrete solutions in distributed body electronics. Use Value: TSOP-5 package and SC70-compatible footprint allow drop-in replacement in legacy designs with minimal layout change. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8170ASN330T1G | Higher max current (200 mA), lower dropout (300 mV @ 100 mA), but IQ = 60 µA - larger thermal footprint. | Better suited for higher-current loads like multi-core MCUs; less optimal for ultra-low-IQ battery hold-up. | Select when >100 mA output or sub-500 mV dropout is required; verify PCB thermal relief for 200 mA continuous. |
| TLV73333PDBVR | Lower IQ (25 µA), same 3.3 V output, but only rated to +105 °C and not AEC-Q100 qualified. | Limited to non-automotive industrial or consumer applications; lacks automotive process controls and PPAP support. | Choose for cost-sensitive commercial designs where automotive qualification is unnecessary and ambient temperature stays ≤105 °C. |
Compared with NCV502SN33T1G, NCV8170ASN330T1G offers higher drive capability at the expense of quiescent current and qualification scope, while TLV73333PDBVR reduces IQ but sacrifices automotive compliance and thermal margin - making NCV502SN33T1G the balanced choice for AEC-Q100 systems needing proven reliability at 80 mA.
Availability
NCV502SN33T1G is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS camera modules, and telematics control units requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.
Supply support for NCV502SN33T1G 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 (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient silicon and SiC solutions for automotive, industrial, cloud, and IoT applications.
The NCV502 series belongs to onsemi's automotive-qualified analog power portfolio, engineered specifically for low-power, high-reliability subsystems in vehicles - including body electronics, ADAS, and infotainment domains.
FAQ
What is the maximum input voltage rating for the NCV502SN33T1G?
The NCV502SN33T1G has an absolute maximum input voltage of 12 V. Operation above this level risks permanent damage. For reliable 3.3 V regulation, the recommended minimum input is 4.3 V (providing ≥1.0 V headroom over dropout), and typical use cases apply 5 V or 6.5 V inputs. The device includes internal protection against transient overvoltage up to specified limits.
Does the NCV502SN33T1G require an external pull-up resistor on the Enable pin?
No, the NCV502SN33T1G does not include an internal pull-up on the Enable pin and does not require an external pull-up resistor. To ensure activation, connect Enable directly to Vin. To disable the device and reduce quiescent current to 0.1 µA, drive Enable to ≤0.3 V - typically via an open-drain GPIO or logic buffer.
Is the NCV502SN33T1G pin-compatible with the NCP502SN33T1G?
Yes, the NCV502SN33T1G and NCP502SN33T1G share identical pinout, package (TSOP-5), electrical specifications, and functional behavior. The only differences are qualification level (NCV = AEC-Q100 Grade 1, NCP = industrial) and manufacturing site controls - making them mechanically and electrically interchangeable in most designs, though automotive applications require the NCV variant.
What output capacitor value and type are recommended for stable operation of the NCV502SN33T1G?
The NCV502SN33T1G is stable with ≥1.0 µF ceramic capacitors (X5R or X7R dielectrics in 0603 or 0805 case sizes). TDK part numbers C1608X5R1A105K or C2012X5R1C105K are validated. Larger values (e.g., 2.2 µF–10 µF) improve load transient response and noise rejection but are not required for basic regulation.
How does thermal performance differ between the TSOP-5 and SC70-5 packages for the NCV502SN33T1G?
The NCV502SN33T1G in TSOP-5 (Case 483) has a junction-to-ambient thermal resistance (RJA) of 205 °C/W with 1 oz copper, while the SC70-5 version (not offered for NCV502SN33T1G) measures 400 °C/W. This means the TSOP-5 package dissipates heat nearly twice as effectively - supporting higher continuous current or operation in hotter environments without derating.
NCV502SN33T1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 12V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.2V @ 80mA
- Current - Output:
- 80mA
- Current - Quiescent (Iq):
- 40 µA
- Current - Supply (Max):
- 90 µA
- PSRR:
- 55dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-TSOP
NCV502SN33T1G FAQ
1.How can I place an order for NCV502SN33T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV502SN33T1G 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 NCV502SN33T1G reliable?
The price and inventory of NCV502SN33T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV502SN33T1G is usually 5 days.
3.What payment methods are accepted for NCV502SN33T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV502SN33T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV502SN33T1G?
NCV502SN33T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV502SN33T1G 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 NCV502SN33T1G?
For technical support, including NCV502SN33T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV502SN33T1G requirements.
6.How does Aetrix verify that NCV502SN33T1G is sourced from the original manufacturer or authorized distributors?
All NCV502SN33T1G 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 NCV502SN33T1G meets industry standards.
7.What is the process for return or replacement of NCV502SN33T1G?
All NCV502SN33T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCV502SN33T1G, 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 NCV502SN33T1G part is unused and in its original packaging.
Return procedure for NCV502SN33T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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