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onsemi NCV612SQ28T1G
- Part No.:
- NCV612SQ28T1G
- Manufacturer:
- onsemi
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
NCV612SQ28T1G.pdf
- Description:
- IC REG LINEAR 2.8V 100MA SC88A
- Quantity:
- Payment:
- Shipping:
Inventory:2,741
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Product details
Overview
NCV612SQ28T1G from onsemi is an automotive-grade, fixed-output CMOS low-dropout linear regulator delivering 2.8 V at up to 100 mA with ultra-low quiescent current (40 µA typical), 230 mV dropout at 100 mA, and ±2.0% output voltage accuracy - designed for battery-powered infotainment modules and body control units requiring stable low-power biasing.
For engineers reviewing the NCV612SQ28T1G datasheet, pinout, applications, or equivalent options, this page delivers verified technical context, validated pin functions, real-world application mappings, and AEC-Q100-compliant alternative options for automotive power rail design.
Technical Context
The NCV612SQ28T1G integrates a PMOS pass transistor, precision voltage reference, error amplifier, and thermal/current-limit protection in a single SC70-5 package. It operates across −40 °C to +125 °C ambient and supports enable-controlled shutdown with logic-compatible threshold (0.95 V turn-on, 0.3 V turn-off).
Designed for ceramic capacitor stability, it requires only 1.0 µF input and output capacitance, exhibits 100 µVRMS output noise (100 Hz–100 kHz), and maintains regulation under load transients up to 60 mA with <±50 mV deviation - critical for microcontroller core and sensor analog supply rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8 V ±2.0% over −40 °C to +125 °C - ensures reliable MCU I/O and sensor interface biasing across full automotive temperature range. |
| Max Output Current | 100 mA continuous - sufficient for powering low-power MCUs (e.g., S32K116), CAN transceivers, or EEPROMs without external boost. |
| Dropout Voltage | 230 mV at 100 mA - enables operation from 3.03 V input, supporting direct connection to degraded 3.3 V system rails or LiFePO₄ batteries. |
| Quiescent Current | 40 µA typical - minimizes standby drain in always-on domains (e.g., door module wake-up circuitry) to extend battery life beyond 10 years. |
| Enable Threshold | 0.95 V (turn-on), 0.3 V (turn-off) - compatible with 1.8 V/3.3 V GPIOs and supports clean sequencing with microcontroller reset controllers. |
| Thermal Protection | Internal shutdown at ~160 °C junction - prevents latch-up during solder reflow or sustained overload, enabling robust field reliability. |
| ESD Rating | HBM 2000 V - withstands handling and assembly stresses without external protection diodes in ECU subassemblies. |
Pinout & Package
NCV612SQ28T1G is housed in the SC70-5 (SOT-353) surface-mount package - 2.0 mm × 2.1 mm footprint with 0.65 mm pitch, optimized for space-constrained automotive PCBs such as mirror control or seat memory modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Vin | Positive input supply - accepts 0–6.0 V; must be decoupled with ≥1.0 µF ceramic capacitor placed adjacent to pin 1 for transient immunity. |
| 2 | Gnd | Power ground reference - connects directly to low-impedance PCB ground plane; shared return path for Vin and Vout currents. |
| 3 | Enable | Active-high digital control - pulls low to disable regulator (IQ drops to ≤0.03 µA); if unused, tie directly to Vin to ensure always-on operation. |
| 4 | N/C | No internal connection - left floating or grounded per layout best practice; no electrical function or routing required. |
| 5 | Vout | Regulated 2.8 V output - supplies downstream logic; requires ≥1.0 µF ceramic output capacitor (low-ESR) placed within 2 mm of pin 5. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualified | Qualified to Grade 1 (−40 °C to +125 °C ambient), PPAP-capable - meets automotive qualification requirements for engine bay and cabin ECUs. |
| Ceramic capacitor compatible | Stable with 1.0 µF X5R/X7R ceramics (no ESR minimum) - eliminates need for tantalum or aluminum electrolytics, reducing BOM cost and size. |
| Low-noise regulation | 100 µVRMS output noise (100 Hz–100 kHz) - avoids interference with sensitive analog sensors (e.g., Hall-effect position sensors) sharing same 2.8 V rail. |
| Thermal foldback protection | Automatic current reduction above safe junction temperature - sustains partial functionality during overheating instead of hard shutdown. |
| Pb-free and RoHS compliant | SC70-5 package with matte tin lead finish - satisfies automotive ELV directive and enables lead-free reflow compatibility (JEDEC J-STD-020). |
Applications
| Infotainment Power Rail | Body Control Module (BCM) |
|---|---|
|
Use Scenario: Supplying 2.8 V bias to touchscreen controller ICs and audio codec analog sections in automotive head units. IC Role / Device Role / Timing Role: Primary LDO regulator providing clean, sequenced power to mixed-signal SoCs during ignition-on startup and sleep/wake transitions. Use Value: 40 µA quiescent current extends battery hold-up time during vehicle off-state; 230 mV dropout allows operation from partially discharged 3.3 V domain. |
Use Scenario: Powering LIN transceiver and door lock actuator driver logic in distributed body electronics. IC Role / Device Role / Timing Role: Secondary regulated supply isolated from main 5 V rail, enabling independent fault containment and low-power wake detection. Use Value: Enable pin synchronizes with BCM microcontroller GPIO to gate power during deep sleep, cutting system standby current by >90%. |
| Advanced Driver Assistance Systems (ADAS) | Telematics Control Unit (TCU) |
|
Use Scenario: Delivering stable 2.8 V to radar sensor front-end amplifiers and ADC reference buffers in parking assist modules. IC Role / Device Role / Timing Role: Low-noise analog supply regulator decoupled from noisy digital domains, maintaining SNR integrity under EMI stress. Use Value: 100 µVRMS noise and ±2.0% accuracy ensure consistent ADC conversion linearity across temperature - critical for distance measurement fidelity. |
Use Scenario: Providing backup power to real-time clock (RTC) and secure boot memory in cellular-connected TCU modules. IC Role / Device Role / Timing Role: Always-on LDO supplying non-volatile registers and crypto accelerators during main processor power-down cycles. Use Value: −40 °C to +125 °C operation guarantees RTC accuracy in hot vehicle cabins; AEC-Q100 qualification ensures long-term data retention integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73328PDBVR | 2.8 V, 300 mA, 65 µA IQ, SOT-23-5 - higher current but 1.6× quiescent current and no AEC-Q100 rating. | Suitable for industrial IoT gateways, not automotive ECUs requiring PPAP documentation or extended temperature validation. | Select when higher output current is needed and automotive qualification is not required. |
| TPS78028QDDCRQ1 | 2.8 V, 150 mA, 500 nA IQ, WSON-6 - ultra-low IQ but larger footprint, different pinout, and higher cost. | Better for ultra-long-life battery systems (e.g., tire pressure monitors), where 500 nA standby dominates over footprint constraints. | Select when nanoscale quiescent current outweighs SC70-5 size advantage and AEC-Q100 is still required. |
Compared with TLV73328PDBVR and TPS78028QDDCRQ1, the NCV612SQ28T1G uniquely balances AEC-Q100 compliance, SC70-5 miniaturization, 40 µA IQ, and 100 mA capability - making it optimal for cost-sensitive, space-constrained automotive modules where qualification and thermal robustness are non-negotiable.
Availability
NCV612SQ28T1G is available at Aetrix Electronics and suitable for automotive infotainment systems, body control modules, and ADAS sensor power supplies requiring stable component supply, AEC-Q100 traceability, and long-lifecycle support.
Supply support for NCV612SQ28T1G 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 focused on energy-efficient innovation for automotive, industrial, cloud, and medical applications.
The NCV612 series belongs to onsemi's automotive-qualified linear regulator portfolio, engineered specifically for low-power, high-reliability biasing in engine control, chassis, and infotainment subsystems.
FAQ
What is the operating temperature range of the NCV612SQ28T1G?
The NCV612SQ28T1G is rated for −40 °C to +125 °C ambient temperature, meeting AEC-Q100 Grade 1 requirements. This range is validated across all electrical parameters including output voltage accuracy (±2.0%), dropout voltage, and quiescent current - ensuring reliable operation in under-hood and cabin-mounted automotive electronics where thermal cycling is severe.
Does the NCV612SQ28T1G require external components to operate?
Yes - the NCV612SQ28T1G requires at minimum a 1.0 µF ceramic capacitor on both input (Vin) and output (Vout) pins, placed as close as possible to the device. These capacitors stabilize regulation, suppress line/load transients, and ensure phase margin. No ESR constraints apply, and no additional compensation network is needed due to internal stability optimization.
Is the NCV612SQ28T1G pin-compatible with other devices in the NCV612 family?
Yes - all NCV612 variants (e.g., NCV612SQ30T1G, NCV612SQ33T1G) share identical SC70-5 pinout and package dimensions. The only differences are output voltage and marking code; no PCB redesign is needed when swapping between 1.5 V–5.0 V versions, simplifying voltage rail standardization across vehicle platforms.
What protection features does the NCV612SQ28T1G include?
The NCV612SQ28T1G integrates thermal shutdown (activates at ~160 °C junction temperature), current limit (~150–600 mA depending on input voltage), and reverse-voltage protection on the Enable pin. It also features built-in ESD protection (HBM 2000 V), eliminating need for external TVS diodes in most automotive board-level designs.
Can the NCV612SQ28T1G be used without connecting the Enable pin?
Yes - if the Enable function is not required, the Enable pin (Pin 3) must be tied directly to Vin to ensure the regulator remains enabled at all times. Leaving it floating is not permitted, as undefined logic levels may cause erratic on/off behavior or increased ground current. This connection is explicitly specified in the datasheet's Pin Function Description section.
NCV612SQ28T1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- 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):
- 0.38V @ 100mA
- Current - Output:
- 100mA
- Current - Quiescent (Iq):
- 90 µA
- Current - Supply (Max):
- 90 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-88A (SC-70-5/SOT-353)
NCV612SQ28T1G FAQ
1.How can I place an order for NCV612SQ28T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV612SQ28T1G 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 NCV612SQ28T1G reliable?
The price and inventory of NCV612SQ28T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV612SQ28T1G is usually 5 days.
3.What payment methods are accepted for NCV612SQ28T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV612SQ28T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV612SQ28T1G?
NCV612SQ28T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV612SQ28T1G 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 NCV612SQ28T1G?
For technical support, including NCV612SQ28T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV612SQ28T1G requirements.
6.How does Aetrix verify that NCV612SQ28T1G is sourced from the original manufacturer or authorized distributors?
All NCV612SQ28T1G 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 NCV612SQ28T1G meets industry standards.
7.What is the process for return or replacement of NCV612SQ28T1G?
All NCV612SQ28T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCV612SQ28T1G, 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 NCV612SQ28T1G part is unused and in its original packaging.
Return procedure for NCV612SQ28T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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