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onsemi NCV612SQ25T1G
- Part No.:
- NCV612SQ25T1G
- Manufacturer:
- onsemi
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
NCV612SQ25T1G.pdf
- Description:
- IC REG LINEAR 2.5V 100MA SC88A
- Quantity:
- Payment:
- Shipping:
Inventory:4,628
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Product details
Overview
NCV612SQ25T1G from onsemi is an automotive-grade CMOS low-dropout linear voltage regulator delivering 100 mA output at fixed 2.5 V with ultra-low 40 µA quiescent current, 230 mV dropout at 100 mA, and ±2.0% output voltage accuracy - designed for battery-powered infotainment modules and ADAS sensor power rails where thermal efficiency and standby power minimization are critical.
For engineers reviewing the NCV612SQ25T1G datasheet, pinout, applications, or equivalent options, key selection criteria include AEC-Q100 qualification, SC70-5 package thermal performance, enable-controlled shutdown capability, and compatibility with 1.0 µF ceramic output capacitors in space-constrained automotive PCB layouts.
Technical Context
The NCV612SQ25T1G integrates a PMOS pass transistor, precision voltage reference, error amplifier, and thermal/overcurrent protection circuits - enabling stable regulation without external compensation. Its architecture supports operation across −40 °C to +125 °C ambient, with internal current limiting set to 150–600 mA depending on input/output differential.
Enable functionality provides logic-level control (VTH(EN) = 0.95 V high, 0.3 V low), allowing system-level power sequencing; unused Enable must be tied to Vin. The device achieves 70 dB ripple rejection at 100 Hz and maintains <100 µVRMS output noise (100 Hz–100 kHz) under 30 mA load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5 V ±2.0% over −40 °C to +125 °C - ensures stable MCU core or sensor bias supply despite automotive temperature cycling. |
| Max Output Current | 100 mA continuous - sufficient for low-power microcontrollers, CAN transceivers, or image sensors in compact modules. |
| Dropout Voltage | 230 mV at 100 mA - enables regulation from 2.73 V input, supporting single-cell LiFePO₄ or dual-cell alkaline sources. |
| Quiescent Current | 40 µA typical - reduces standby power loss in always-on vehicle networks (e.g., body control modules). |
| Operating Temp Range | −40 °C to +125 °C - meets AEC-Q100 Grade 1 requirements for under-hood and cabin-mounted electronics. |
| Package | SC70-5 (SOT-353) - 2.0 × 1.25 × 0.95 mm footprint ideal for dense automotive PCBs with limited real estate. |
| Enable Threshold | 0.95 V (rising), 0.3 V (falling) - compatible with 1.8 V/3.3 V GPIO without level-shifting in modern SoC designs. |
Pinout & Package
NCV612SQ25T1G is housed in the SC70-5 (SOT-353) surface-mount package - a 5-pin, lead-free, micro-miniature outline with 0.65 mm pitch and exposed pad not present. Thermal resistance is 300 °C/W (Junction-to-Ambient), requiring minimal copper area for automotive-grade reliability.
| 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 near pin. |
| 2 | Gnd | Power ground reference - low-impedance connection required to minimize noise coupling into regulation loop. |
| 3 | Enable | Active-high digital control - pulls device into 0.03 µA shutdown when low; tie to Vin if unused. |
| 4 | N/C | No internal connection - must remain unconnected; floating or grounded per design has no functional impact. |
| 5 | Vout | Regulated 2.5 V output - stable with 1.0 µF ceramic capacitor; ESR from 0 to 5 Ω supported. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Qualified | Grade 1 (−40 °C to +125 °C) - certified for automotive power management in safety-critical subsystems. |
| Ultra-Low IQ | 40 µA typical - extends battery life in telematics units during ignition-off periods without compromising wake-up latency. |
| Low-ESR Ceramic Cap Support | Stable with 1.0 µF X5R/X7R ceramics - eliminates need for costly tantalum or polymer capacitors in cost-sensitive modules. |
| Thermal Shutdown | Activates at ~160 °C junction - protects against solder reflow damage and sustained overload in enclosed enclosures. |
| High Ripple Rejection | 70 dB @ 100 Hz - suppresses alternator ripple and switching converter noise feeding adjacent analog circuits. |
Applications
| Infotainment Power Rail | ADAS Camera Module |
|---|---|
|
Use Scenario: Powering ARM Cortex-M7 MCU and audio codec in head unit with variable battery voltage (9–16 V). IC Role / Device Role / Timing Role: Primary 2.5 V LDO supplying core logic and analog interfaces; enables clean startup/shutdown sequencing via Enable pin. Use Value: 40 µA quiescent current prevents parasitic drain during vehicle sleep mode; 230 mV dropout allows operation down to 2.73 V input during cold-crank events. |
Use Scenario: Providing regulated 2.5 V to CMOS image sensor and ISP in rear-view camera assembly. IC Role / Device Role / Timing Role: Low-noise post-regulator after buck converter; rejects switching noise from upstream DC-DC stage. Use Value: <100 µVRMS output noise preserves image SNR; AEC-Q100 qualification ensures reliability in high-vibration mounting locations. |
| Body Control Module (BCM) | Tire Pressure Monitoring System (TPMS) |
|
Use Scenario: Supplying 2.5 V to LIN transceiver and EEPROM in door module with intermittent wake-up signals. IC Role / Device Role / Timing Role: Always-on LDO with Enable controlled by microcontroller wake signal - transitions between active and ultra-low-power states. Use Value: 0.3 V enable threshold ensures reliable turn-off with weak pull-downs; ±2.0% output accuracy maintains LIN bus timing margins across temperature. |
Use Scenario: Regulating 2.5 V for pressure sensor ASIC and RF transmitter in battery-operated TPMS sensor. IC Role / Device Role / Timing Role: Primary voltage source for mixed-signal sensor node - operates directly from CR2032 coin cell (3.0 V nominal). Use Value: 230 mV dropout enables >2000-hour runtime at 10 µA average current; SC70-5 package fits within 8 mm² PCB area constraint. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73325PDBVR | 2.5 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 qualified for automotive production. | Select only for non-automotive designs requiring >100 mA or tighter line regulation (0.05%/V vs. 1.0 mV/V). |
| AP7361-25SG-13 | 2.5 V, 300 mA, 50 µA IQ, SOT-23-5 - wider temp range (−40 °C to +150 °C) but no enable pin or AEC-Q100 certification. | Fits under-hood engine control units needing extended junction temperature margin. | Prefer when thermal derating beyond +125 °C ambient is required and enable control is unnecessary. |
Compared with TLV73325PDBVR and AP7361-25SG-13, the NCV612SQ25T1G uniquely combines AEC-Q100 Grade 1 qualification, enable functionality, and 40 µA quiescent current in SC70-5 - making it the only drop-in option for automotive modules requiring both low-power standby and production compliance.
Availability
NCV612SQ25T1G is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS camera modules, and body control units requiring stable component supply with full AEC-Q100 traceability and PPAP documentation support.
Supply support for NCV612SQ25T1G 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 management, analog, and sensor solutions for automotive, industrial, and cloud infrastructure markets.
The NCV612 series belongs to onsemi's automotive-qualified LDO portfolio - engineered specifically for low-quiescent, high-reliability power delivery in safety-critical vehicle subsystems operating across extreme temperature ranges.
FAQ
What is the maximum input voltage rating for the NCV612SQ25T1G?
The NCV612SQ25T1G supports an absolute maximum input voltage of 6.0 V. Exceeding this limit risks permanent damage to the internal PMOS pass transistor and protection circuitry. For reliable operation, maintain Vin ≤ Vout + 3.5 V (i.e., ≤6.0 V for 2.5 V output) while respecting thermal limits - especially at high ambient temperatures or elevated load currents.
Does the NCV612SQ25T1G require external capacitors, and what values are recommended?
Yes, the NCV612SQ25T1G requires both input (Cin) and output (Cout) decoupling capacitors. onsemi specifies minimum 1.0 µF ceramic capacitors for both positions - placed as close as possible to the respective pins. Larger values (e.g., 2.2–10 µF) improve transient response and noise rejection, but ESR up to 5 Ω remains stable per datasheet validation.
Is the NCV612SQ25T1G pin-compatible with other devices in the NCV612 family?
Yes, all NCV612 variants - including NCV612SQ15T1G, NCV612SQ30T1G, and NCV612SQ33T1G - share identical SC70-5 pinout and electrical interface. Only the output voltage and marking code differ; no PCB redesign is needed when substituting between fixed-voltage versions of the same package.
What is the thermal shutdown behavior of the NCV612SQ25T1G?
The NCV612SQ25T1G incorporates internal thermal protection that disables the output when junction temperature reaches approximately 160 °C. Once tripped, the device remains off until junction temperature falls below the hysteresis threshold (~140 °C), then resumes normal regulation automatically - no external reset required.
Can the NCV612SQ25T1G be used without connecting the Enable pin?
Yes - if the Enable function is unused, the pin must be connected directly to Vin to ensure the regulator remains enabled. Leaving Enable floating may cause erratic output behavior due to noise coupling or undefined logic state, violating the specified operating conditions in the datasheet.
NCV612SQ25T1G 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):
- 2.5V
- 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)
NCV612SQ25T1G FAQ
1.How can I place an order for NCV612SQ25T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV612SQ25T1G 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 NCV612SQ25T1G reliable?
The price and inventory of NCV612SQ25T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV612SQ25T1G is usually 5 days.
3.What payment methods are accepted for NCV612SQ25T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV612SQ25T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV612SQ25T1G?
NCV612SQ25T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV612SQ25T1G 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 NCV612SQ25T1G?
For technical support, including NCV612SQ25T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV612SQ25T1G requirements.
6.How does Aetrix verify that NCV612SQ25T1G is sourced from the original manufacturer or authorized distributors?
All NCV612SQ25T1G 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 NCV612SQ25T1G meets industry standards.
7.What is the process for return or replacement of NCV612SQ25T1G?
All NCV612SQ25T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCV612SQ25T1G, 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 NCV612SQ25T1G part is unused and in its original packaging.
Return procedure for NCV612SQ25T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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