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onsemi NCV662SQ50T1G
- Part No.:
- NCV662SQ50T1G
- Manufacturer:
- onsemi
- Package:
- SC-82A, SOT-343
- Datasheet:
-
NCV662SQ50T1G.pdf
- Description:
- IC REG LINEAR 5V 100MA SC82AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
NCV662SQ50T1G from onsemi is an automotive-grade, fixed-output 5.0 V low-dropout linear regulator with PMOS pass transistor architecture, 2.5 µA typical quiescent current, ±2.0% output voltage accuracy, and −40 °C to +125 °C operating temperature range-designed for always-on power domains in infotainment and body control modules.
For engineers reviewing the NCV662SQ50T1G datasheet, pinout, applications, or equivalent options, key selection criteria include ultra-low IQ under light load, AEC-Q100 qualification, SC-82AB package thermal performance, and enable-controlled shutdown capability.
Technical Context
The NCV662SQ50T1G integrates a precision voltage reference, error amplifier, and PMOS power transistor in a single-die CMOS process. It uses internal resistor networks to set its fixed 5.0 V output and includes thermal shutdown, current limit, and reverse-voltage protection circuits.
Its enable input (pin 4) provides logic-level ON/OFF control with 1.3 V turn-on threshold and 0.5 V turn-off threshold. The device achieves stable regulation with only 0.1 µF ceramic output capacitance and supports up to 100 mA continuous output current at ≤230 mV dropout (IOUT = 100 mA, VOUT = 5.0 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0 V ±2.0% over −40 °C to +125 °C and 1–100 mA load. |
| Quiescent Current | 2.5 µA typical (IEN = 0 V), enabling >10-year battery hold-up in automotive keep-alive circuits. |
| Dropout Voltage | 230 mV max at 100 mA output, allowing operation down to 5.23 V input for 5.0 V rail integrity. |
| Input Voltage Range | 2.5 V to 6.0 V - compatible with 5 V supply rails and transient-tolerant automotive systems. |
| Enable Threshold | 1.3 V (rising edge), 0.5 V (falling edge) - interfaces directly with 3.3 V or 5 V microcontroller GPIOs. |
| Thermal Protection | Internal shutdown at ~160 °C junction temperature - prevents latch-up during sustained overload. |
| Output Noise | 100 µVRMS (100 Hz–100 kHz) - suitable for noise-sensitive analog sensors and RF subsystems. |
Pinout & Package
The NCV662SQ50T1G is housed in the SC-82AB (Case 419C) surface-mount package: 2.0 × 1.25 × 0.9 mm, 4-pin, Pb-free, moisture-sensitive level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Power ground reference; must be low-impedance connection to minimize noise coupling and thermal resistance. |
| 2 | VIN | Main input supply (2.5–6.0 V); requires local 1.0 µF ceramic decoupling capacitor placed adjacent to pin. |
| 3 | VOUT | Regulated 5.0 V output; minimum 0.1 µF ceramic capacitor required for stability and transient response. |
| 4 | Enable | Active-high digital control input; pull to VIN for operation, ground for shutdown (2.5 µA standby current). |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualified | Grade 1 (−40 °C to +125 °C), PPAP-capable - meets automotive reliability and traceability requirements. |
| Ultra-low quiescent current | 2.5 µA typical enables >10-year battery life in always-on vehicle modules without compromising wake-up latency. |
| Stable with ceramic capacitors | No ESR requirement; supports 0.1–10 µF X5R/X7R ceramics - reduces BOM count and board space vs. tantalum solutions. |
| Integrated protection | Current limit, thermal shutdown, and reverse-voltage protection eliminate need for external discrete protection circuitry. |
| High PSRR at low frequency | 60 dB @ 1 kHz (typical) - suppresses ripple from noisy 12 V battery-derived supplies feeding downstream analog ICs. |
Applications
| Automotive Infotainment Power | Body Control Module (BCM) Keep-Alive |
|---|---|
|
Use Scenario: Providing clean 5.0 V bias to USB PHY, display interface, and audio codec in head unit during vehicle sleep mode. IC Role / Device Role / Timing Role: Primary LDO for always-on domain; enables fast wake-up from deep sleep without brownout. Use Value: 2.5 µA IQ extends vehicle battery life beyond 10 years in parking mode while maintaining <10 µs startup time. |
Use Scenario: Powering real-time clock, CAN transceiver standby logic, and door lock MCU in BCM during ignition-off state. IC Role / Device Role / Timing Role: Low-IQ backup regulator ensuring system state retention and secure wake-on-CAN functionality. Use Value: ±2.0% output accuracy maintains RTC timing drift <1 ppm/°C; thermal shutdown prevents fault propagation during hot ambient conditions. |
| ADAS Camera Sensor Bias | Telematics Control Unit (TCU) Core Logic |
|
Use Scenario: Supplying regulated 5.0 V to image sensor analog front-end and ISP core in rear-view camera module. IC Role / Device Role / Timing Role: Noise-suppressing post-regulator after buck converter; delivers low-noise 5.0 V for pixel readout integrity. Use Value: 100 µVRMS output noise avoids fixed-pattern noise in captured images; 230 mV dropout ensures operation during cold-crank (6.0 V min). |
Use Scenario: Powering 3.3 V LDO input stage and cellular modem baseband logic in TCU during LTE data transmission bursts. IC Role / Device Role / Timing Role: High-stability pre-regulator delivering clean 5.0 V to secondary regulators and RF power amplifiers. Use Value: 60 dB PSRR at 1 kHz rejects switching noise from primary DC-DC; SC-82AB footprint allows placement near noise-sensitive RF sections. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8170ASN50T1G | Higher IQ (12 µA typ), same 5.0 V output, wider input range (1.4–5.5 V), no enable pin. | Lacks ON/OFF control; unsuitable for systems requiring dynamic power gating of 5 V rail. | Select when enable functionality is unnecessary and lower cost is prioritized over ultra-low IQ. |
| TLE42744G | Higher dropout (400 mV @ 100 mA), higher IQ (30 µA), integrated watchdog and reset functions. | Includes safety features (reset timeout, window watchdog) not present in NCV662SQ50T1G. | Select when functional safety monitoring (ISO 26262 ASIL-B support) is required alongside regulation. |
Compared with NCV662SQ50T1G, NCV8170ASN50T1G trades enable control and ultra-low IQ for cost and input flexibility, while TLE42744G adds safety monitoring at the expense of quiescent current and dropout performance-making NCV662SQ50T1G optimal for high-efficiency, enable-driven automotive subsystems.
Availability
NCV662SQ50T1G is available at Aetrix Electronics and suitable for automotive infotainment, body control modules, and ADAS camera power management requiring stable component supply across extended temperature and long lifecycle programs.
Supply support for NCV662SQ50T1G 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 delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCV662SQ50T1G belongs to onsemi's automotive-qualified LDO portfolio, engineered specifically for low-power, high-reliability domains in vehicles-including always-on, start-stop, and cold-crank environments.
FAQ
What is the maximum input voltage rating for the NCV662SQ50T1G?
The NCV662SQ50T1G has a maximum input voltage rating of 6.0 V, as specified in the Absolute Maximum Ratings table. Operation above this voltage risks permanent damage. For reliable long-term use in automotive applications, design margins should maintain VIN ≤ 5.5 V during cold-crank transients, where the NCV662SQ50T1G maintains regulation with 230 mV dropout at 100 mA load.
Does the NCV662SQ50T1G require an external pull-up resistor on the Enable pin?
No, the NCV662SQ50T1G does not require an external pull-up resistor on the Enable pin. If unused, the Enable pin must be connected directly to VIN to ensure normal operation. The internal structure supports direct tie-to-rail connection, eliminating external components and reducing PCB area-consistent with the device's design goal of minimal BOM count in space-constrained automotive modules.
Is the NCV662SQ50T1G compatible with 0.1 µF ceramic output capacitors?
Yes, the NCV662SQ50T1G is explicitly designed to be stable with a minimum 0.1 µF ceramic output capacitor, as confirmed in both the datasheet Features section and Applications Information. This eliminates ESR dependency and supports compact, low-cost X5R/X7R MLCCs-enabling robust transient response in battery-powered infotainment and telematics systems without requiring larger or more expensive tantalum alternatives.
What is the output voltage accuracy specification for the NCV662SQ50T1G over temperature?
The NCV662SQ50T1G guarantees ±2.0% output voltage accuracy over its full operating ambient temperature range of −40 °C to +125 °C, as stated in the Electrical Characteristics table. This tolerance includes initial calibration, line/load regulation, and temperature drift contributions-ensuring consistent 5.0 V rail integrity for downstream analog and mixed-signal ICs in harsh automotive environments.
How does the thermal protection in the NCV662SQ50T1G behave during overload?
The NCV662SQ50T1G incorporates internal thermal shutdown that activates at approximately 160 °C junction temperature. When triggered, the device disables output regulation and enters a safe high-impedance state until junction temperature falls below the hysteresis threshold (~140 °C). This behavior prevents irreversible damage during sustained overload or poor PCB thermal design-critical for unattended operation in sealed automotive enclosures where airflow is limited.
NCV662SQ50T1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SC-82A, SOT-343
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.3V @ 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
NCV662SQ50T1G FAQ
1.How can I place an order for NCV662SQ50T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV662SQ50T1G 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 NCV662SQ50T1G reliable?
The price and inventory of NCV662SQ50T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV662SQ50T1G is usually 5 days.
3.What payment methods are accepted for NCV662SQ50T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV662SQ50T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV662SQ50T1G?
NCV662SQ50T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV662SQ50T1G 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 NCV662SQ50T1G?
For technical support, including NCV662SQ50T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV662SQ50T1G requirements.
6.How does Aetrix verify that NCV662SQ50T1G is sourced from the original manufacturer or authorized distributors?
All NCV662SQ50T1G 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 NCV662SQ50T1G meets industry standards.
7.What is the process for return or replacement of NCV662SQ50T1G?
All NCV662SQ50T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCV662SQ50T1G, 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 NCV662SQ50T1G part is unused and in its original packaging.
Return procedure for NCV662SQ50T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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