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onsemi NCV612SQ25T2G
- Part No.:
- NCV612SQ25T2G
- Manufacturer:
- onsemi
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
NCV612SQ25T2G.pdf
- Description:
- IC REG LINEAR 2.5V 100MA SC88A
- Quantity:
- Payment:
- Shipping:
Inventory:2,356
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Product details
Overview
NCV612SQ25T2G from onsemi is an automotive-grade CMOS low-dropout linear regulator delivering a fixed 2.5 V output at up to 100 mA, featuring 40 µA typical quiescent current, 270 mV dropout at 100 mA, and ±2.0% output voltage accuracy over −40 °C to +125 °C - deployed in battery-powered infotainment modules and ADAS sensor power rails.
For engineers reviewing the NCV612SQ25T2G datasheet, pinout, applications, or equivalent options, key selection criteria include AEC-Q100 qualification, SC70-5 thermal performance under 125 °C ambient, enable-controlled standby mode, and compatibility with 1.0 µF ceramic output capacitors without ESR constraints.
Technical Context
The NCV612SQ25T2G integrates a PMOS pass transistor, precision voltage reference, error amplifier, and thermal/overcurrent protection - enabling stable regulation with minimal external components. Its enable input supports logic-level control (VTH(en) = 0.95 V high, 0.3 V low), and internal circuitry ensures safe shutdown above 160 °C junction temperature.
Designed for ultra-low-power operation, it maintains regulation across input voltages from 2.8 V to 6.0 V while sustaining 2.5 V output within ±2.0% tolerance from −40 °C to +125 °C ambient. Ground current remains at 40 µA (typ) under no-load and rises to 90 µA (max) at full 100 mA load - critical for always-on automotive subsystems.
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 voltage in engine bay environments. |
| Max Output Current | 100 mA continuous - sufficient for powering single-core microcontrollers or CAN transceivers. |
| Dropout Voltage | 270 mV (typ) at 100 mA - enables operation from 2.8 V input, supporting LiFePO₄ or dual-cell alkaline sources. |
| Quiescent Current | 40 µA (typ) with enable high - extends battery life in parked-mode vehicle systems. |
| Enable Threshold | 0.95 V (rising edge), 0.3 V (falling edge) - compatible with 1.8 V/3.3 V GPIO without level-shifting. |
| Thermal Shutdown | Activates at ~160 °C junction - protects against PCB overheating during sustained high-power dissipation. |
| Input Voltage Range | 0 to 6.0 V - accommodates transient surges and cold-crank conditions in 12 V automotive systems. |
Pinout & Package
Housed in the SC70-5 (SOT-353) surface-mount package (Case 419A), the NCV612SQ25T2G uses a 5-pin layout optimized for space-constrained automotive PCBs with minimal thermal pad area.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Vin | Positive input supply - must be decoupled with ≥1.0 µF ceramic capacitor placed adjacent to pin. |
| 2 | Gnd | Power ground reference - requires low-impedance connection to PCB ground plane for noise immunity. |
| 3 | Enable | Active-high digital control - pulled high to Vin for normal operation; pulled low to disable output and reduce IQ to <1 µA. |
| 4 | N/C | No internal connection - left floating or grounded; not electrically tied to die. |
| 5 | Vout | Regulated 2.5 V output - supports 1.0 µF–10 µF ceramic or tantalum capacitors without stability concerns. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Qualified | Rated for automotive Grade 1 (−40 °C to +125 °C ambient) with PPAP documentation support - meets OEM power-rail requirements. |
| Ultra-Low IQ | 40 µA typical quiescent current enables >1-year battery hold-up in telematics modules powered by coin cells or supercaps. |
| Low-ESR Cap Compatible | Stable with 1.0 µF ceramic output capacitors (0–5 Ω ESR) - eliminates need for costly tantalum or polymer caps. |
| Internal Protection | Thermal shutdown, current limit (600 mA short-circuit), and reverse-voltage protection - reduces external component count. |
| Pb-Free & RoHS | SC70-5 package with Pb-free terminations (G suffix) - compliant with automotive ELV and global environmental directives. |
Applications
| Infotainment Power Rail | ADAS Camera Module |
|---|---|
Use Scenario: Supplying 2.5 V to audio codec ICs and touch controller ASICs in head-unit designs. IC Role / Device Role / Timing Role: Primary low-noise LDO for analog signal chain biasing - replaces switching regulators to avoid RF interference. Use Value: 100 µVRMS output noise (100 Hz–100 kHz) preserves SNR in microphone preamp stages. |
Use Scenario: Powering image sensor interface logic and ISP cores in rear-view camera ECUs. IC Role / Device Role / Timing Role: Enable-controlled auxiliary rail - disabled during sleep mode to meet ISO 16750-2 quiescent current limits. Use Value: 40 µA IQ and −40 °C to +125 °C operation ensure compliance with automotive cold-soak and hot-soak tests. |
| Telematics Control Unit | Body Control Module |
Use Scenario: Regulating 2.5 V for GPS/GNSS baseband processors and cellular modem memory interfaces. IC Role / Device Role / Timing Role: Secondary LDO downstream of main 3.3 V rail - provides isolated, low-noise domain for timing-critical peripherals. Use Value: 270 mV dropout allows uninterrupted operation during 12 V battery dips to 2.8 V during cranking. |
Use Scenario: Powering LIN transceiver logic and EEPROM in door module ECUs. IC Role / Device Role / Timing Role: Always-on regulated supply - maintains real-time clock and wake-up circuitry during vehicle sleep. Use Value: AEC-Q100 qualification and 125 °C ambient rating guarantee reliability in enclosed door cavities exposed to solar loading. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8170DS250M33T2G | 250 mA output, 170 mV dropout, SOT-23-5 package - higher current but larger footprint and 120 µA IQ. | Used where higher load margin is needed (e.g., multi-peripheral clusters), but less suitable for ultra-low-IQ sleep modes. | Select when >100 mA peak load or lower dropout is required; verify PCB layout change for SOT-23-5. |
| TLV73325PDQNR | 250 mA, 175 mV dropout, 30 µA IQ, same SC70-5 package - lower IQ but not AEC-Q100 qualified. | Applicable in industrial or consumer portable gear, but lacks automotive qualification and thermal robustness. | Consider only for non-automotive designs requiring lowest possible IQ; not acceptable for OEM production programs. |
Compared with NCV612SQ25T2G, the NCV8170DS250M33T2G offers higher current capacity at the cost of increased quiescent draw and board area, while the TLV73325PDQNR trades automotive qualification for marginal IQ reduction - making NCV612SQ25T2G the optimal balance of AEC-Q100 compliance, thermal resilience, and ultra-low-power operation in constrained spaces.
Availability
NCV612SQ25T2G is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, and telematics control units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for NCV612SQ25T2G 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 silicon solutions for automotive, industrial, cloud, and IoT applications - with leadership in power management, imaging, and automotive electronics.
The NCV612SQ25T2G belongs to onsemi's automotive-qualified LDO portfolio, engineered specifically for safety-critical and always-on subsystems in vehicles - emphasizing low quiescent current, wide temperature operation, and AEC-Q100 reliability.
FAQ
What is the maximum input voltage rating for the NCV612SQ25T2G?
The NCV612SQ25T2G supports an absolute maximum input voltage of 6.0 V, as specified in its Maximum Ratings table. Operation beyond this limit risks permanent damage. For reliable 2.5 V output regulation, the recommended minimum input is 2.8 V (2.5 V + 270 mV dropout), ensuring functionality during automotive cold-crank events down to battery voltages of 2.8 V.
Does the NCV612SQ25T2G require an external pull-up resistor on the Enable pin?
No - the NCV612SQ25T2G does not require an external pull-up on the Enable pin. If unused, the datasheet explicitly states that Enable should be connected directly to Vin to ensure default operation. Adding a pull-up resistor introduces unnecessary leakage paths and may compromise the ultra-low quiescent current specification of the NCV612SQ25T2G.
Is the NCV612SQ25T2G pin-compatible with other variants in the NCV612 family?
Yes - all NCV612 variants (e.g., NCV612SQ15T2G, NCV612SQ33T2G) share identical SC70-5 pinout and package dimensions. The only differences are output voltage and marking code (LHQ for 2.5 V). This allows design reuse across voltage points without PCB layout changes, provided input voltage margins and load requirements remain compatible.
What output capacitor value is recommended for the NCV612SQ25T2G?
The NCV612SQ25T2G is stable with a minimum 1.0 µF ceramic output capacitor, as confirmed in the Applications Information section. Larger values (e.g., 2.2 µF–10 µF) improve load transient response and noise rejection, especially in camera or audio applications. TDK part numbers C2012X5R1C105K and C1608X5R1A105K are explicitly referenced in the datasheet as validated options.
How does the thermal shutdown feature operate in the NCV612SQ25T2G?
The NCV612SQ25T2G incorporates internal thermal protection that disables the output when junction temperature exceeds ~160 °C. Once tripped, the device remains off until junction temperature falls below the hysteresis threshold (~140 °C), then automatically resumes regulation. This safeguard prevents irreversible damage during sustained overload or poor PCB thermal design - a critical feature for under-hood automotive deployments.
NCV612SQ25T2G 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)
NCV612SQ25T2G FAQ
1.How can I place an order for NCV612SQ25T2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV612SQ25T2G 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 NCV612SQ25T2G reliable?
The price and inventory of NCV612SQ25T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV612SQ25T2G is usually 5 days.
3.What payment methods are accepted for NCV612SQ25T2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV612SQ25T2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV612SQ25T2G?
NCV612SQ25T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV612SQ25T2G 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 NCV612SQ25T2G?
For technical support, including NCV612SQ25T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV612SQ25T2G requirements.
6.How does Aetrix verify that NCV612SQ25T2G is sourced from the original manufacturer or authorized distributors?
All NCV612SQ25T2G 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 NCV612SQ25T2G meets industry standards.
7.What is the process for return or replacement of NCV612SQ25T2G?
All NCV612SQ25T2G units undergo pre-shipment inspection (PSI). If there is an issue with NCV612SQ25T2G, 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 NCV612SQ25T2G part is unused and in its original packaging.
Return procedure for NCV612SQ25T2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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