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onsemi NCV502SN50T1G
- Part No.:
- NCV502SN50T1G
- Manufacturer:
- onsemi
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
NCV502SN50T1G.pdf
- Description:
- IC REG LINEAR 5V 500MA 5TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,122
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Product details
Overview
NCV502SN50T1G from onsemi is an automotive-grade, fixed-output 5.0 V low-dropout linear regulator in TSOP-5 package, delivering up to 80 mA output current with 40 µA typical quiescent current, ±2.0% output voltage accuracy, and operation across −40 °C to +125 °C ambient temperature - designed for battery-powered infotainment modules and body control units requiring stable low-power voltage regulation.
For engineers reviewing the NCV502SN50T1G datasheet, pinout, applications, or equivalent options, key selection considerations include its AEC-Q100 qualification, enable-controlled shutdown, 700 mV dropout at 80 mA (5.0 V version), SC70-5/TSOP-5 dual-package compatibility, and ceramic-capacitor stability without ESR constraints.
Technical Context
The NCV502SN50T1G integrates a PMOS pass transistor, precision voltage reference, error amplifier, and thermal/current-limit protection circuits. It operates as a single-supply, enable-controlled LDO with logic-compatible enable threshold (1.3 V high / 0.3 V low) and no internal connection on Pin 4.
Designed for automotive environments, it features built-in thermal shutdown (typically 160 °C), reverse-voltage protection via PMOS architecture, and ripple rejection of 55 dB at 1 kHz - all while maintaining regulation under load transients up to 80 mA and input voltages from 5.3 V to 12 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0 V ±2.0% over −40 °C to +125 °C - ensures stable MCU core/peripheral rail in automotive ECUs without external feedback. |
| Max Output Current | 80 mA continuous - sufficient for powering microcontrollers, sensors, and CAN transceivers in low-power domains. |
| Quiescent Current | 40 µA typical (enabled, no load) - enables >1-year battery standby in always-on vehicle modules. |
| Dropout Voltage | 700 mV max at 80 mA - allows operation from 5.7 V input (e.g., degraded 12 V bus) while sustaining 5.0 V output. |
| Enable Threshold | 1.3 V (turn-on), 0.3 V (turn-off) - compatible with 3.3 V or 5 V GPIOs and supports deep-sleep wake-up sequencing. |
| Ripple Rejection | 55 dB at 1 kHz - suppresses switching noise from DC-DC pre-regulators feeding the LDO input. |
| Thermal Protection | Internal shutdown at ~160 °C junction - prevents latch-up or permanent damage during sustained overload or poor PCB heatsinking. |
Pinout & Package
NCV502SN50T1G uses the TSOP-5 (SOT-23-5, Case 483) surface-mount package: 3.00 mm × 1.50 mm × 0.95 mm, lead pitch 0.95 mm, Pb-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - Vin | Positive power supply input | Accepts 5.3–12 V unregulated input; connects to bulk capacitor (≥1 µF ceramic) near pin for transient immunity. |
| 2 - GND | Power ground reference | Must be low-impedance path to system ground plane; shared with input/output capacitors to minimize noise coupling. |
| 3 - Enable | Active-high enable control | Pull ≥1.3 V to activate regulator; pull ≤0.3 V to disable (reducing IQ to <0.1 µA); tie to Vin if unused. |
| 4 - N/C | No internal connection | Not bonded internally; PCB trace may be omitted or left floating - no routing or thermal pad required. |
| 5 - Vout | Regulated 5.0 V output | Drives load directly; requires ≥1 µF ceramic output capacitor placed adjacent to pin for stability and load transient response. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualified (Grade 1) | Validated for −40 °C to +125 °C operation with PPAP capability - meets automotive reliability and traceability requirements. |
| Ultra-low quiescent current | 40 µA typical enables >10-year shelf life in battery-backed telematics and remote keyless entry systems. |
| Ceramic-capacitor stable | No minimum ESR requirement - supports low-profile, high-reliability X5R/X7R MLCCs without oscillation risk. |
| Integrated protection | Current limit, thermal shutdown, and reverse-voltage tolerance eliminate need for external protection components. |
| High PSRR at audio frequencies | 55 dB rejection at 1 kHz reduces audible noise in infotainment power rails fed by noisy buck converters. |
Applications
| Automotive Body Control Module (BCM) | Infotainment System Power Rail |
|---|---|
|
Use Scenario: Regulating 5.0 V supply for door module microcontrollers and LIN transceivers in harsh under-hood environments. IC Role / Device Role / Timing Role: Primary post-regulator converting 12 V battery-derived input to clean, stable 5.0 V for digital logic and analog peripherals. Use Value: AEC-Q100 qualification and −40 °C to +125 °C operation ensure functional safety compliance without derating; 700 mV dropout sustains regulation during cold-crank events down to 5.7 V input. |
Use Scenario: Providing low-noise 5.0 V bias to audio codecs and display controllers in head-unit designs. IC Role / Device Role / Timing Role: Low-PSRR LDO isolating sensitive analog circuitry from switching noise generated by upstream DC-DC converters. Use Value: 55 dB ripple rejection at 1 kHz eliminates audible switching artifacts; 40 µA quiescent current minimizes standby power draw during vehicle sleep mode. |
| Telematics Control Unit (TCU) | Advanced Driver Assistance Systems (ADAS) Sensor Interface |
|
Use Scenario: Powering GPS/GNSS receivers and cellular modems requiring precise 5.0 V with minimal self-heating in compact sealed enclosures. IC Role / Device Role / Timing Role: Standby-enabled voltage source enabling fast wake-from-sleep via GPIO-controlled Enable pin. Use Value: Enable threshold (1.3 V high / 0.3 V low) allows direct interfacing with 3.3 V SoC GPIOs; thermal shutdown prevents thermal runaway in confined layouts. |
Use Scenario: Supplying 5.0 V to radar sensor signal-conditioning ICs and interface buffers in front-end ADAS subassemblies. IC Role / Device Role / Timing Role: Local point-of-load regulator minimizing voltage drop and noise coupling across long PCB traces. Use Value: ±2.0% output accuracy ensures ADC reference stability; TSOP-5 footprint enables dense placement near sensors without thermal crosstalk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8170ASN500T2G | Higher 150 mA output, 25 µA IQ, but larger TSOP-6 package and different pinout (no N/C pin). | Supports higher-current loads like multi-channel CAN FD transceivers; requires PCB redesign due to 6-pin layout. | Select when >80 mA output or lower IQ is critical; verify enable logic compatibility (0.8 V turn-on). |
| TLV73350PDBVR | 500 mA output, 60 µA IQ, SOT-23-5 package, but not AEC-Q100 qualified and rated only to +105 °C. | Suitable for industrial or consumer-grade infotainment accessories; lacks automotive qualification and extended temperature range. | Choose for cost-sensitive non-automotive designs where 500 mA headroom justifies trade-offs in qualification and thermal margin. |
Compared with NCV502SN50T1G, NCV8170ASN500T2G offers higher current and lower IQ but demands board rework, while TLV73350PDBVR provides greater output capacity without automotive compliance - making NCV502SN50T1G the optimal choice for space-constrained, AEC-Q100–mandated 5 V/80 mA applications.
Availability
NCV502SN50T1G is available at Aetrix Electronics and suitable for automotive body electronics, infotainment subsystems, and telematics modules requiring stable component supply amid industry-wide discontinuation trends.
Supply support for NCV502SN50T1G 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 power management, analog, sensing, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.
The NCV502 series belongs to onsemi's automotive-qualified LDO portfolio, engineered specifically for low-power, high-reliability voltage regulation in engine control, chassis, and infotainment systems operating across extreme ambient temperatures.
FAQ
Is NCV502SN50T1G still in active production?
No - per onsemi's datasheet revision 23 (April 2026), NCV502SN50T1G is officially marked as discontinued. However, Aetrix Electronics maintains legacy inventory with full traceability and offers lifecycle coordination support including last-time buy planning and cross-reference guidance for design migration.
What is the maximum input voltage rating for NCV502SN50T1G?
The absolute maximum input voltage for NCV502SN50T1G is 12 V, as specified in the Maximum Ratings table. Operation above this level risks permanent damage. For reliable 5.0 V regulation, minimum input must exceed 5.7 V (5.0 V + 700 mV dropout) under 80 mA load.
Can NCV502SN50T1G operate without an output capacitor?
No - the datasheet mandates a minimum 1.0 µF ceramic output capacitor (C2) for stability. Omitting it risks oscillation, poor load transient response, and potential device failure. Larger values (e.g., 2.2–10 µF) improve noise rejection and dynamic performance.
Does NCV502SN50T1G require a specific input capacitor type or value?
Yes - a 1.0 µF ceramic or tantalum capacitor (C1) is recommended at the Vin pin, placed as close as possible to the package. Higher values or lower-ESR ceramics improve line transient immunity, but the regulator remains stable with the minimum 1.0 µF.
How does the N/C pin (Pin 4) affect PCB layout for NCV502SN50T1G?
Pin 4 is a true no-connect with no internal bond wire. It may be left unconnected on the PCB, omitted from the copper trace, or used as a mechanical fiducial - but must never be tied to GND, Vin, or any other net, as it has zero electrical function and no thermal role.
NCV502SN50T1G 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):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.1V @ 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
NCV502SN50T1G FAQ
1.How can I place an order for NCV502SN50T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV502SN50T1G 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 NCV502SN50T1G reliable?
The price and inventory of NCV502SN50T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV502SN50T1G is usually 5 days.
3.What payment methods are accepted for NCV502SN50T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV502SN50T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV502SN50T1G?
NCV502SN50T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV502SN50T1G 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 NCV502SN50T1G?
For technical support, including NCV502SN50T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV502SN50T1G requirements.
6.How does Aetrix verify that NCV502SN50T1G is sourced from the original manufacturer or authorized distributors?
All NCV502SN50T1G 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 NCV502SN50T1G meets industry standards.
7.What is the process for return or replacement of NCV502SN50T1G?
All NCV502SN50T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCV502SN50T1G, 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 NCV502SN50T1G part is unused and in its original packaging.
Return procedure for NCV502SN50T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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