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onsemi NCV662SQ28T1G
- Part No.:
- NCV662SQ28T1G
- Manufacturer:
- onsemi
- Package:
- SC-82A, SOT-343
- Datasheet:
-
NCV662SQ28T1G.pdf
- Description:
- IC REG LINEAR 2.8V 100MA SC82AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,076
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Product details
Overview
NCV662SQ28T1G from onsemi is an automotive-grade, fixed-output 2.8 V low-dropout linear regulator with 100 mA output capability, ultra-low 2.5 µA quiescent current, ±2.0% output voltage accuracy, and integrated enable control - designed for battery-powered infotainment modules requiring stable low-power voltage regulation.
For engineers reviewing the NCV662SQ28T1G datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q100 qualification, −40 °C to +125 °C operating range, SC-82AB package footprint, dropout voltage of 280 mV at 100 mA, and compatibility with 0.1 µF ceramic output capacitors.
Technical Context
The NCV662SQ28T1G implements a PMOS pass transistor architecture enabling low dropout and high PSRR across load and line variations. Its internal circuitry includes a precision voltage reference, error amplifier, thermal shutdown, current limit protection, and logic-level enable input with 1.3 V turn-on threshold.
This device operates within a 1.5 V to 6.0 V input range and maintains regulation down to 2.8 V output with ≤280 mV dropout at full 100 mA load. It achieves 100 ppm/°C output voltage temperature coefficient and delivers <100 µVRMS noise (100 Hz–100 kHz) at 3.0 V output - validated under −40 °C to +125 °C ambient conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8 V ±2.0% over −40 °C to +125 °C - ensures stable MCU core or sensor rail without external feedback. |
| Max Output Current | 100 mA continuous - sufficient for low-power microcontrollers, CAN transceivers, or display drivers in automotive modules. |
| Quiescent Current | 2.5 µA typical (Enable = 0 V) - enables >1-year battery life in always-on vehicle telematics or key-off monitoring circuits. |
| Dropout Voltage | 280 mV at 100 mA - allows operation from partially discharged 3.3 V Li-ion or 12 V automotive systems via pre-regulator. |
| Input Voltage Range | 1.5 V to 6.0 V - supports direct connection to 3.3 V or 5.0 V supply rails and accommodates transient spikes up to 6 V. |
| Enable Threshold | 1.3 V (rising), 0.5 V (falling) - compatible with 1.8 V/3.3 V GPIOs for precise system power sequencing control. |
| Thermal Range | −40 °C to +125 °C junction - meets AEC-Q100 Grade 1 requirements for under-hood and infotainment applications. |
Pinout & Package
The NCV662SQ28T1G is housed in the SC-82AB (Case 419C) surface-mount package - a 4-pin, 2.0 × 1.25 mm micro-miniature outline with exposed thermal pad (not electrically connected), optimized for space-constrained automotive PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Power ground reference; must be connected to low-impedance PCB plane to ensure stability and thermal performance. |
| 2 | Vin | Main input supply pin; accepts 1.5–6.0 V; requires local 1.0 µF ceramic decoupling capacitor placed adjacent to pin. |
| 3 | Vout | Regulated 2.8 V output; supports minimum 0.1 µF ceramic capacitor; ESR-insensitive for robust transient response. |
| 4 | Enable | Active-high digital control input; pulls device into ultra-low-IQ standby when <0.5 V; tie to Vin if unused. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Qualified | Grade 1 (−40 °C to +125 °C) compliance confirmed - suitable for automotive infotainment, body control, and ADAS subsystems. |
| Ultra-Low IQ | 2.5 µA typical in shutdown - reduces parasitic drain in always-on vehicle networks (e.g., LIN/CAN wake-up receivers). |
| Stable with 0.1 µF COUT | No ESR requirement - eliminates need for tantalum or polymer capacitors; lowers BOM cost and improves reliability. |
| Integrated Protection | Thermal shutdown (160 °C) and current limiting (≥150 mA) - prevents damage during short-circuit or overload events. |
| Pb-Free Packaging | RoHS-compliant SC-82AB package with "G" suffix - meets global automotive environmental and assembly standards. |
Applications
| Automotive Infotainment | Telematics Control Unit |
|---|---|
|
Use Scenario: Powering audio DSP cores and touch controller ICs in head unit mainboards. IC Role / Device Role / Timing Role: Primary 2.8 V LDO supplying low-noise analog and digital domains of SoC peripherals. Use Value: 280 mV dropout enables efficient use of 3.3 V pre-regulated rail; 2.5 µA IQ extends key-off battery life beyond 30 days. |
Use Scenario: Regulating power for GPS/GNSS receiver modules and cellular modem baseband interfaces. IC Role / Device Role / Timing Role: Standby-mode LDO delivering clean 2.8 V to RF front-end bias and serial interface logic. Use Value: Enable pin allows synchronized power-down during sleep cycles; ±2.0% accuracy ensures reliable UART/SPI timing margins. |
| Body Control Module | Advanced Driver Assistance System |
|
Use Scenario: Supplying door module microcontrollers and LIN transceivers in smart entry systems. IC Role / Device Role / Timing Role: Secondary LDO generating 2.8 V from 5 V domain for low-power MCU peripherals and EEPROM. Use Value: −40 °C to +125 °C operation guarantees function during engine bay thermal cycling; SC-82AB footprint saves board area. |
Use Scenario: Biasing image signal processors and camera sensor interfaces in surround-view systems. IC Role / Device Role / Timing Role: Low-noise 2.8 V source for analog front-end and clock distribution circuitry. Use Value: <100 µVRMS output noise minimizes pixel-level interference; thermal shutdown protects against enclosure overheating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8170ASN280T1G | 2.8 V, 150 mA, 300 nA IQ, SOT-563 package - lower quiescent current but higher dropout (350 mV @ 100 mA). | Preferred for ultra-low-power wake-up circuits where 50 mV higher dropout is acceptable. | Select when sub-µA standby current outweighs dropout sensitivity in battery-backed modules. |
| TLD6512-2ES | 2.8 V, 120 mA, AEC-Q100 Grade 0 (−40 °C to +150 °C), integrated watchdog - no enable pin, larger HTSOP-8 package. | Suitable for safety-critical ASIL-B functions requiring fault reporting and reset supervision. | Choose when system-level diagnostics, thermal derating margin, or watchdog functionality are required. |
Compared with NCV662SQ28T1G, NCV8170ASN280T1G offers deeper sleep current but sacrifices dropout performance, while TLD6512-2ES adds functional safety features at the cost of pin count and layout footprint - making NCV662SQ28T1G optimal for cost-sensitive, space-constrained automotive LDO applications needing proven AEC-Q100 reliability without added complexity.
Availability
NCV662SQ28T1G is available at Aetrix Electronics and suitable for automotive infotainment, telematics control units, and body control modules requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for NCV662SQ28T1G 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 NCV662SQ28T1G belongs to onsemi's automotive-qualified LDO regulator family - engineered specifically for low-power, high-reliability voltage regulation in harsh-temperature vehicle subsystems.
FAQ
What is the maximum input voltage rating for the NCV662SQ28T1G?
The NCV662SQ28T1G has an absolute maximum input voltage rating of 6.0 V. Operation above this level risks permanent damage. For reliable long-term use, design with Vin ≤ 5.5 V under worst-case transient conditions, especially in automotive 12 V systems with load-dump spikes. The NCV662SQ28T1G maintains regulation down to 2.8 V output across this full input range.
Does the NCV662SQ28T1G require an external output capacitor, and what value is recommended?
Yes, the NCV662SQ28T1G requires an external output capacitor for stability. The minimum recommended value is 0.1 µF ceramic, though 1.0 µF is advised for improved load transient response. Unlike older LDOs, it imposes no ESR requirement - enabling use of low-cost, high-reliability X5R/X7R MLCCs. Place the capacitor within 2 mm of the Vout and GND pins.
Is the NCV662SQ28T1G pin-compatible with other devices in the NCP662/NCV662 series?
Yes, all NCP662/NCV662 variants - including NCV662SQ18T1G, NCV662SQ25T1G, and NCV662SQ28T1G - share identical SC-82AB pinout and package dimensions. Only the output voltage and top-side marking differ. This allows drop-in replacement across voltage options without PCB redesign, provided thermal and electrical constraints remain satisfied.
What is the dropout voltage of the NCV662SQ28T1G at 100 mA load and −40 °C ambient?
The NCV662SQ28T1G exhibits a typical dropout voltage of 280 mV at 100 mA load and −40 °C ambient temperature, per the Electrical Characteristics table. At room temperature, it drops to 250 mV. This low dropout enables operation from weak or aging batteries and simplifies multi-rail power architecture in compact automotive modules.
How does the enable function operate on the NCV662SQ28T1G, and what happens if it's left unconnected?
The NCV662SQ28T1G enable pin is active-high with a 1.3 V turn-on threshold. When pulled below 0.5 V, the device enters ultra-low-IQ shutdown (<0.1 µA). If left floating, the device may behave unpredictably; the datasheet explicitly requires connecting Enable to Vin if unused. This ensures guaranteed startup and avoids unintended disable states during power-up sequencing.
NCV662SQ28T1G 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):
- 2.8V
- 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
NCV662SQ28T1G FAQ
1.How can I place an order for NCV662SQ28T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV662SQ28T1G 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 NCV662SQ28T1G reliable?
The price and inventory of NCV662SQ28T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV662SQ28T1G is usually 5 days.
3.What payment methods are accepted for NCV662SQ28T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV662SQ28T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV662SQ28T1G?
NCV662SQ28T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV662SQ28T1G 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 NCV662SQ28T1G?
For technical support, including NCV662SQ28T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV662SQ28T1G requirements.
6.How does Aetrix verify that NCV662SQ28T1G is sourced from the original manufacturer or authorized distributors?
All NCV662SQ28T1G 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 NCV662SQ28T1G meets industry standards.
7.What is the process for return or replacement of NCV662SQ28T1G?
All NCV662SQ28T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCV662SQ28T1G, 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 NCV662SQ28T1G part is unused and in its original packaging.
Return procedure for NCV662SQ28T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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