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onsemi NCV612SQ31T2G
- Part No.:
- NCV612SQ31T2G
- Manufacturer:
- onsemi
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
NCV612SQ31T2G.pdf
- Description:
- IC REG LINEAR 3.1V 100MA SC88A
- Quantity:
- Payment:
- Shipping:
Inventory:4,237
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Product details
Overview
NCV612SQ31T2G from onsemi is an automotive-grade, fixed-output CMOS low-dropout linear regulator delivering 3.1 V at up to 100 mA with 40 µA typical quiescent current and 210 mV dropout at full load. It integrates PMOS pass transistor, thermal shutdown, current limiting, and operates across −40 °C to +125 °C for use in battery-powered infotainment modules and ADAS sensor power rails.
For engineers reviewing the NCV612SQ31T2G datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q100 qualification, SC70-5 footprint compatibility, ±2.0% output voltage accuracy over temperature, and enable-controlled standby mode enabling ultra-low-power system sleep states.
Technical Context
The NCV612SQ31T2G employs a PMOS pass transistor architecture enabling low dropout and near-zero reverse current during disable. Its internal error amplifier maintains regulation using a precision voltage reference and feedback resistors trimmed for 3.1 V nominal output.
Thermal protection activates at ~160 °C junction temperature, and the enable input provides logic-level control (VTH(HI) = 0.95 V, VTH(LO) = 0.3 V) with internal pull-up not required - unused Enable must be tied to Vin per datasheet guidance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.1 V ±2.0% over −40 °C to +125 °C ensures stable MCU core supply under automotive thermal cycling. |
| Max Output Current | 100 mA continuous supports low-power microcontrollers, CAN transceivers, or camera sensor biasing. |
| Dropout Voltage | 210 mV at 100 mA enables operation from 3.31 V input - critical for single-cell LiFePO₄ or degraded 12 V rail systems. |
| Quiescent Current | 40 µA typical allows >1-year battery life in always-on vehicle telematics modules. |
| Enable Threshold | 0.95 V (turn-on), 0.3 V (turn-off) supports direct interface with 1.8 V/3.3 V GPIO without level-shifting. |
| Thermal Range | −40 °C to +125 °C ambient meets AEC-Q100 Grade 1 requirements for under-hood and cabin applications. |
| Package | SC70-5 (SOT-353) occupies 1.6 mm × 1.6 mm footprint - ideal for space-constrained ADAS ECUs. |
Pinout & Package
NCV612SQ31T2G is housed in the SC70-5 (SOT-353) surface-mount package - a 1.6 mm × 1.6 mm × 0.9 mm micro-miniature outline with gull-wing leads and exposed pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Vin | Input supply connection; accepts 0–6.0 V - must be decoupled with ≥1.0 µF ceramic capacitor adjacent to pin. |
| 2 | Gnd | Power ground reference; requires low-impedance PCB plane connection to minimize noise coupling into regulation loop. |
| 3 | Enable | Active-high digital control input; pulled high internally only if externally connected - otherwise tie to Vin for always-on operation. |
| 4 | N/C | No internal connection - must remain unconnected; floating or grounded may cause parasitic coupling. |
| 5 | Vout | Regulated 3.1 V output; requires ≥1.0 µF ceramic output capacitor placed within 2 mm of pin for stability and transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ | 40 µA typical enables >1-year runtime in vehicle key-fob or tire pressure sensors powered by coin cells. |
| Low Dropout | 210 mV at 100 mA allows use with weak or aging batteries while maintaining 3.1 V output for sensitive analog circuitry. |
| AEC-Q100 Qualified | Grade 1 qualification (−40 °C to +125 °C) confirms reliability for automotive body control modules and lighting drivers. |
| Stable with Ceramic Caps | No ESR requirement simplifies BOM - permits use of low-cost, small-footprint X5R/X7R MLCCs instead of tantalum. |
| Integrated Protection | Current limit and thermal shutdown prevent latch-up or damage during short-circuit or overheating events in sealed enclosures. |
Applications
| Infotainment Power Rail | ADAS Camera Bias Supply |
|---|---|
Use Scenario: Providing clean, regulated 3.1 V to audio codec ICs and touch controller in automotive head units. IC Role / Device Role / Timing Role: Primary LDO supplying core logic voltage for mixed-signal SoCs requiring <2.0% output tolerance. Use Value: 40 µA quiescent current minimizes standby drain; 100 mA capacity handles burst-mode DSP processing loads. | Use Scenario: Powering image sensor analog front-end and ISP in surround-view camera modules. IC Role / Device Role / Timing Role: Low-noise post-regulator stepping down from 5 V intermediate rail to precise 3.1 V sensor bias. Use Value: 100 µVRMS output noise and 70 dB ripple rejection at 100 kHz preserve SNR in high-resolution imaging. |
| Telematics Module Core Supply | Body Control Unit Subsystem |
Use Scenario: Delivering always-on 3.1 V to GNSS receiver and cellular modem baseband processor in fleet tracking devices. IC Role / Device Role / Timing Role: Enable-controlled LDO enabling deep-sleep mode when vehicle ignition is off. Use Value: Logic-compatible Enable threshold allows direct MCU GPIO control; 0.3 V turn-off threshold ensures robust noise immunity. | Use Scenario: Supplying 3.1 V to LIN transceiver and EEPROM in door module ECUs. IC Role / Device Role / Timing Role: Secondary regulator fed from main 5 V domain, providing isolated, fault-tolerant voltage for communication peripherals. Use Value: Thermal shutdown prevents thermal runaway during LIN bus short-circuits; SC70-5 footprint saves board area in multi-node modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8170ASN310T2G | 3.1 V output, 150 mA rating, 250 mV dropout, SOT-23-5 package - larger footprint, higher current capability. | Supports higher-load subsystems (e.g., multi-sensor clusters); less suitable for ultra-space-constrained layouts. | Select when >100 mA output or enhanced thermal performance is required; verify PCB land pattern compatibility. |
| TPS7A0531PDBVR | 3.1 V output, 200 mA rating, 170 mV dropout, 25 µA IQ, SOT-23-5 - lower quiescent current but non-automotive grade. | Lacks AEC-Q100 qualification and extended temperature range; unsuitable for production automotive use. | Consider only for prototyping or non-automotive industrial applications where qualification is not mandated. |
Compared with NCV612SQ31T2G, NCV8170ASN310T2G offers higher current and thermal margin at the cost of board area, while TPS7A0531PDBVR delivers lower IQ but cannot replace it in AEC-Q100-compliant designs due to missing automotive qualification and temperature range.
Availability
NCV612SQ31T2G is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS camera modules, and telematics units requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for NCV612SQ31T2G 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 silicon solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCV612 series belongs to onsemi's automotive-qualified linear regulator portfolio, designed specifically for low-power, high-reliability subsystems in vehicles - including body electronics, infotainment, and ADAS where AEC-Q100 compliance and thermal robustness are mandatory.
FAQ
What is the maximum input voltage rating for NCV612SQ31T2G?
The NCV612SQ31T2G supports an absolute maximum input voltage of 6.0 V. Exceeding this rating risks permanent damage. For reliable operation at 3.1 V output, the recommended input range is 3.31 V to 6.0 V - ensuring sufficient headroom above dropout while respecting maximum stress limits.
Does NCV612SQ31T2G require external components to operate stably?
Yes - the NCV612SQ31T2G 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. No ESR constraints apply, enabling use of standard X5R/X7R MLCCs. The Enable pin must be tied to Vin if unused, per datasheet guidance.
Is NCV612SQ31T2G pin-compatible with other variants in the NCV612 family?
Yes - all NCV612 variants, including NCV612SQ31T2G, share identical SC70-5 pinout and package dimensions. Output voltage is set internally; no external resistors are needed. This allows drop-in replacement across 1.5 V to 5.0 V versions when board layout and thermal design accommodate the specific variant's load and dropout behavior.
What does the "NCV" prefix signify for NCV612SQ31T2G?
The "NCV" prefix indicates that NCV612SQ31T2G is manufactured under onsemi's automotive quality system, meeting AEC-Q100 Grade 1 requirements (−40 °C to +125 °C ambient), PPAP capability, and unique process controls for automotive applications - distinguishing it from commercial-grade NCP612 variants.
Can NCV612SQ31T2G be used in battery-powered portable equipment outside automotive?
Yes - while NCV612SQ31T2G is automotive-qualified, its 40 µA quiescent current, 100 mA output, and SC70-5 package make it equally suitable for portable medical monitors, handheld test instruments, or industrial IoT sensors requiring long battery life and high reliability - provided the extended temperature range is leveraged or verified for the target environment.
NCV612SQ31T2G 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):
- 3.1V
- 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)
NCV612SQ31T2G FAQ
1.How can I place an order for NCV612SQ31T2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV612SQ31T2G 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 NCV612SQ31T2G reliable?
The price and inventory of NCV612SQ31T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV612SQ31T2G is usually 5 days.
3.What payment methods are accepted for NCV612SQ31T2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV612SQ31T2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV612SQ31T2G?
NCV612SQ31T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV612SQ31T2G 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 NCV612SQ31T2G?
For technical support, including NCV612SQ31T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV612SQ31T2G requirements.
6.How does Aetrix verify that NCV612SQ31T2G is sourced from the original manufacturer or authorized distributors?
All NCV612SQ31T2G 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 NCV612SQ31T2G meets industry standards.
7.What is the process for return or replacement of NCV612SQ31T2G?
All NCV612SQ31T2G units undergo pre-shipment inspection (PSI). If there is an issue with NCV612SQ31T2G, 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 NCV612SQ31T2G part is unused and in its original packaging.
Return procedure for NCV612SQ31T2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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