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onsemi NCV662SQ25T1G
- Part No.:
- NCV662SQ25T1G
- Manufacturer:
- onsemi
- Package:
- SC-82A, SOT-343
- Datasheet:
-
NCV662SQ25T1G.pdf
- Description:
- IC REG LINEAR 2.5V 100MA SC82AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,105
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Product details
Overview
NCV662SQ25T1G from onsemi is an automotive-grade, fixed-output 2.5 V low-dropout linear regulator with 100 mA output capability, ultra-low 2.5 µA quiescent current, and enable control - designed for battery-powered infotainment modules requiring stable voltage under light-load standby conditions.
For engineers reviewing the NCV662SQ25T1G datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, thermal behavior at −40 °C to +125 °C, SC-82AB package layout, and AEC-Q100-compliant design context for automotive embedded power rail selection.
Technical Context
The NCV662SQ25T1G integrates a PMOS pass transistor, precision voltage reference, error amplifier, and thermal/overcurrent protection circuitry in a single die. Its enable input allows system-level power sequencing, and it operates with ceramic output capacitors as low as 0.1 µF.
This regulator achieves 2.5 V ±2.0% output accuracy across −40 °C to +125 °C ambient, with dropout voltage of 280 mV (typ.) at 100 mA load. Line regulation is ≤20 mV over 1.5–4.4 V input range, and load regulation is ≤40 mV from 10 mA to 100 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.5 V ±2.0% (ensures stable MCU core or sensor bias rail within automotive temperature range) |
| Quiescent Current | 2.5 µA typical (enables >1-year battery life in always-on vehicle modules) |
| Dropout Voltage | 280 mV @ 100 mA (supports operation down to Vin = 2.78 V, critical for cold-crank scenarios) |
| Operating Temp | −40 °C to +125 °C (AEC-Q100 Grade 1 qualified for under-hood and infotainment use) |
| Max Input Voltage | 6.0 V (compatible with 5 V supply rails and transient-tolerant automotive systems) |
| Enable Threshold | VTH(HI) = 1.3 V, VTH(LO) = 0.5 V (directly compatible with 3.3 V or 5 V logic control without level shift) |
| Output Noise | 100 µVRMS (100 Hz–100 kHz) (low enough for analog sensor signal chains) |
Pinout & Package
NCV662SQ25T1G is housed in the SC-82AB (Case 419C) surface-mount package: 1.8–2.2 mm × 1.15–1.35 mm × 0.8–1.1 mm, 4-pin, Pb-free, micro-miniature footprint optimized for space-constrained automotive PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Power ground reference; must be low-impedance connection to minimize noise coupling into regulation loop |
| 2 | Vin | Main input supply (6.0 V max); requires local 1.0 µF ceramic decoupling per datasheet Figure 1 |
| 3 | Vout | Regulated 2.5 V output; supports 0.1 µF minimum ceramic capacitor, no ESR requirement |
| 4 | Enable | Active-high digital control input; pull to Vin for always-on operation; float or tie to GND to disable |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ | 2.5 µA enables multi-year battery operation in telematics and keyless entry modules |
| AEC-Q100 Qualified | Grade 1 (−40 °C to +125 °C) certification ensures reliability for automotive infotainment and body control units |
| Enable Control | Digital ON/OFF sequencing simplifies power management in multi-rail systems without external MOSFETs |
| Ceramic Cap Compatible | No minimum ESR requirement allows use of low-cost, small-footprint 0.1 µF X5R/X7R ceramics |
| Thermal Shutdown | Internal protection activates at ~160 °C junction, preventing damage during sustained overload or poor heatsinking |
Applications
| Automotive Infotainment | Telematics Control Unit |
|---|---|
Use Scenario: Powering audio codec, touch controller, and display interface ICs in head unit mainboard. IC Role / Device Role / Timing Role: Primary 2.5 V LDO supplying low-noise analog and digital logic rails. Use Value: 2.5 µA quiescent current minimizes parasitic drain during vehicle sleep mode; 2.5 V ±2.0% accuracy maintains ADC reference integrity. |
Use Scenario: Providing regulated 2.5 V to GNSS receiver baseband processor and cellular modem subsystem. IC Role / Device Role / Timing Role: Standby-power-critical LDO enabling fast wake-up from deep-sleep states. Use Value: 280 mV dropout ensures operation during cold-crank (battery dip to 2.8 V), preserving GPS lock continuity. |
| Body Control Module | Advanced Driver Assistance Sensors |
Use Scenario: Supplying 2.5 V to LIN transceiver and EEPROM in door module ECUs. IC Role / Device Role / Timing Role: Low-IQ auxiliary regulator for non-critical but always-on peripherals. Use Value: Enable pin allows synchronized shutdown with main MCU, reducing total module sleep current below 5 µA. |
Use Scenario: Biasing image signal processor (ISP) and CMOS image sensor analog front-end in rear-view camera. IC Role / Device Role / Timing Role: Clean, low-noise 2.5 V rail for high-resolution sensor pixel readout. Use Value: 100 µVRMS output noise prevents fixed-pattern noise in captured video frames under wide temperature swings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV663SQ25T1G | No enable pin; N/C on pin 4; otherwise identical electrical specs and thermal rating | Suitable where system-level enable is handled externally or not required | Select when simplified control interface is preferred and no dynamic ON/OFF sequencing needed |
| TLV73325PDBVR | Higher IQ (45 µA), same 2.5 V output, SOT-23-5 package, no AEC-Q100 qualification | Limited to industrial or consumer applications; lacks automotive temperature range and qualification | Consider only for non-automotive designs where cost or footprint drives selection over qualification |
Compared with NCV662SQ25T1G, NCV663SQ25T1G removes enable functionality while retaining identical output accuracy and thermal performance, whereas TLV73325PDBVR trades automotive qualification and ultra-low IQ for lower cost and wider distributor availability in non-automotive contexts.
Availability
NCV662SQ25T1G is available at Aetrix Electronics and suitable for automotive infotainment, telematics control units, and body control modules requiring stable component supply with full AEC-Q100 traceability and long-term lifecycle support.
Supply support for NCV662SQ25T1G 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, analog, sensor, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.
The NCV662 series belongs to onsemi's automotive-qualified LDO portfolio, engineered specifically for low-quiescent-current, high-reliability power management in safety-critical and battery-sensitive vehicle subsystems.
FAQ
What is the maximum input voltage rating for NCV662SQ25T1G?
The NCV662SQ25T1G has a maximum input voltage rating of 6.0 V, as specified in the Absolute Maximum Ratings table. This allows safe operation across automotive 5 V nominal rails and accommodates transient spikes up to 6 V without damage or regulation loss. Exceeding this voltage may cause permanent device failure.
Does NCV662SQ25T1G require an external pull-up resistor on the Enable pin?
No, the NCV662SQ25T1G does not require an external pull-up resistor on the Enable pin. If enable functionality is unused, the datasheet explicitly recommends connecting the Enable pin directly to Vin to ensure default ON operation. Internal circuitry does not mandate external biasing.
Is NCV662SQ25T1G qualified to AEC-Q100, and what grade does it meet?
Yes, NCV662SQ25T1G is AEC-Q100 qualified and meets Grade 1 requirements, supporting operation from −40 °C to +125 °C ambient temperature. The "NCV" prefix denotes automotive qualification, PPAP capability, and unique site/process controls mandated for automotive production.
What is the minimum output capacitance required for stable operation of NCV662SQ25T1G?
The NCV662SQ25T1G requires a minimum output capacitance of 0.1 µF, as confirmed in the datasheet's "Typical Applications" section and Electrical Characteristics notes. Ceramic capacitors are recommended, and no ESR minimum is specified - enabling use of low-cost, compact X5R/X7R types.
How does the dropout voltage of NCV662SQ25T1G behave at full load and elevated temperature?
At 100 mA load and −40 °C to +125 °C ambient, the NCV662SQ25T1G maintains a dropout voltage of 280 mV (typical) to 500 mV (max), per the Electrical Characteristics table. This ensures reliable 2.5 V regulation even during cold-crank events where input voltage drops to 2.78 V, critical for automotive start-stop systems.
NCV662SQ25T1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SC-82A, SOT-343
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 100mA
- Current - Output:
- 100mA
- Current - Quiescent (Iq):
- 1 µA
- Current - Supply (Max):
- 6 µA
- PSRR:
- -
- 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:
- SC-82AB
NCV662SQ25T1G FAQ
1.How can I place an order for NCV662SQ25T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV662SQ25T1G 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 NCV662SQ25T1G reliable?
The price and inventory of NCV662SQ25T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV662SQ25T1G is usually 5 days.
3.What payment methods are accepted for NCV662SQ25T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV662SQ25T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV662SQ25T1G?
NCV662SQ25T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV662SQ25T1G 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 NCV662SQ25T1G?
For technical support, including NCV662SQ25T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV662SQ25T1G requirements.
6.How does Aetrix verify that NCV662SQ25T1G is sourced from the original manufacturer or authorized distributors?
All NCV662SQ25T1G 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 NCV662SQ25T1G meets industry standards.
7.What is the process for return or replacement of NCV662SQ25T1G?
All NCV662SQ25T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCV662SQ25T1G, 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 NCV662SQ25T1G part is unused and in its original packaging.
Return procedure for NCV662SQ25T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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