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onsemi NCV612SQ50T1G
- Part No.:
- NCV612SQ50T1G
- Manufacturer:
- onsemi
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
NCV612SQ50T1G.pdf
- Description:
- IC REG LINEAR 5V 100MA SC88A
- Quantity:
- Payment:
- Shipping:
Inventory:1,168
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Product details
Overview
NCV612SQ50T1G from onsemi is an automotive-grade CMOS low-dropout linear voltage regulator delivering a fixed 5.0 V output at up to 100 mA, featuring ultra-low 40 µA quiescent current, 230 mV dropout at 100 mA, and ±2.0% output voltage accuracy over −40 °C to +125 °C. It integrates PMOS pass transistor, thermal shutdown, current limit, and enable control - designed for battery-powered infotainment modules and body control units where standby power and thermal robustness are critical.
For engineers reviewing the NCV612SQ50T1G datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q100 qualification, SC70-5 package footprint, enable-controlled low-power mode, and compatibility with low-ESR ceramic capacitors without stability compensation.
Technical Context
The NCV612SQ50T1G employs a PMOS pass transistor architecture enabling low dropout and near-zero ground current in shutdown. Its internal error amplifier compares feedback from a precision voltage reference against the regulated 5.0 V output, driving the pass element to maintain regulation across line (1.5–6.0 V input), load (0–100 mA), and temperature (−40 °C to +125 °C) variations.
Enable functionality is implemented as a logic-level input with 0.3 V (low) and 0.95 V (high) thresholds, allowing direct microcontroller GPIO control. Thermal protection activates at ~160 °C junction temperature, disabling output until safe cooldown - critical for under-hood automotive environments where ambient temperatures exceed 105 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0 V ±2.0% over −40 °C to +125 °C - ensures stable MCU core/peripheral supply in automotive ECUs. |
| Max Output Current | 100 mA continuous - sufficient for powering small sensors, CAN transceivers, or display backlight drivers. |
| Dropout Voltage | 230 mV at 100 mA - enables operation from 5.23 V input when battery dips to 5.3 V, preserving function during cold-crank. |
| Quiescent Current | 40 µA typical - minimizes parasitic drain on vehicle battery during ignition-off, supporting >10-year shelf life. |
| Input Voltage Range | 0 to 6.0 V - accommodates 12 V system transients (ISO 7637-2 Pulse 1/2a) with external clamping. |
| Thermal Shutdown | Activates at ~160 °C junction - prevents permanent damage during sustained overload or poor PCB heatsinking. |
| Enable Threshold | 0.3 V (logic low disable), 0.95 V (logic high enable) - compatible with 1.8 V/3.3 V GPIO without level-shifting. |
Pinout & Package
NCV612SQ50T1G is housed in the SC70-5 (SOT-353) surface-mount package - measuring 2.0 mm × 2.1 mm × 0.9 mm - optimized for space-constrained automotive modules and requiring minimal PCB real estate.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Vin | Positive input supply rail; 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 connection to PCB ground plane to minimize noise coupling. |
| 3 | Enable | Active-high digital control input; pulls device into <1 µA shutdown when held ≤0.3 V; tie to Vin if unused. |
| 4 | N/C | No internal connection; must remain unconnected - not a test pad or thermal pad. |
| 5 | Vout | Regulated 5.0 V output; supports ≥1.0 µF ceramic output capacitor; ESR from 0.5 mΩ to 5 Ω is stable. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualified (Grade 1) | Validated for −40 °C to +125 °C operation with stress testing per automotive reliability standards - suitable for engine bay and cabin modules. |
| Ultra-low quiescent current | 40 µA typical enables >10-year battery hold-up in always-on telematics systems without compromising runtime. |
| Low-noise output | 100 µVRMS (100 Hz–100 kHz) supports noise-sensitive analog sensors and ADC references without added filtering. |
| Stable with ceramic capacitors | No minimum ESR requirement allows use of compact, low-cost X5R/X7R MLCCs - eliminating tantalum or electrolytic dependencies. |
| Integrated protection | Current limit, thermal shutdown, and reverse-voltage protection prevent field failures due to short circuits or miswiring. |
Applications
| Infotainment Power Rail | Body Control Module (BCM) |
|---|---|
|
Use Scenario: Supplies 5.0 V to microcontroller peripherals (USB PHY, audio codec, touch controller) in head unit during sleep mode. IC Role / Device Role / Timing Role: Primary LDO regulator providing clean, low-noise 5.0 V domain with enable-controlled shutdown. Use Value: 40 µA quiescent current extends vehicle battery life during weeks-long parking; ±2.0% accuracy ensures reliable USB enumeration. |
Use Scenario: Powers door lock actuators' logic interface and LIN transceiver in central body controller. IC Role / Device Role / Timing Role: Secondary 5.0 V regulator enabling wake-on-LIN functionality with fast turn-on response (<1 ms). Use Value: 230 mV dropout allows operation down to 5.23 V input during battery sag; AEC-Q100 Grade 1 rating ensures reliability at 105 °C ambient. |
| ADAS Camera Module | Telematics Control Unit (TCU) |
|
Use Scenario: Provides 5.0 V bias to image sensor I/O and ISP core in rear-view camera housing. IC Role / Device Role / Timing Role: Local point-of-load regulator decoupling sensor noise from main 12 V bus. Use Value: 100 µVRMS output noise prevents pixel pattern artifacts; SC70-5 footprint saves space in compact camera PCB. |
Use Scenario: Powers GPS/GNSS receiver and cellular modem baseband in always-connected TCU during ignition-off tracking. IC Role / Device Role / Timing Role: Standby power regulator activated only during periodic location reporting. Use Value: Enable pin allows host MCU to gate power, reducing average current to <1 µA between transmissions - extending battery backup to 3+ years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73350PDBVR | 400 mA output, 250 mV dropout at 300 mA, 50 µA IQ, SOT-23-5 package (larger than SC70-5). | Higher current capability suits multi-rail systems but requires PCB layout change; lacks AEC-Q100 certification. | Select TLV73350PDBVR only if >100 mA load or non-automotive industrial use is required. |
| TPS78050QDDCRQ1 | AEC-Q100 Grade 1, 150 mA output, 250 mV dropout at 150 mA, 500 nA IQ, same SC70-5 package. | Lower IQ enables ultra-low-power tracking; higher cost and longer lead time than NCV612SQ50T1G. | Choose TPS78050QDDCRQ1 when sub-µA standby is mandatory and budget permits premium pricing. |
Compared with TLV73350PDBVR and TPS78050QDDCRQ1, the NCV612SQ50T1G offers optimal balance of automotive qualification, SC70-5 footprint, 100 mA capability, and 40 µA IQ - making it the preferred choice for cost-sensitive, space-constrained automotive modules requiring proven reliability.
Availability
NCV612SQ50T1G is available at Aetrix Electronics and suitable for automotive infotainment systems, body control modules, and ADAS camera power supplies requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.
Supply support for NCV612SQ50T1G 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 electronics for automotive, industrial, cloud, and IoT applications.
The NCV612SQ50T1G belongs to onsemi's automotive-qualified LDO regulator family, engineered specifically for low-power, high-reliability power management in harsh-temperature vehicle subsystems.
FAQ
What is the operating temperature range of the NCV612SQ50T1G?
The NCV612SQ50T1G is rated for −40 °C to +125 °C ambient operating 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 consistent performance in under-hood and cabin-mounted automotive electronics where thermal cycling is severe.
Does the NCV612SQ50T1G require external components for stability?
No, the NCV612SQ50T1G is internally compensated and stable with 1.0 µF ceramic output capacitors having ESR from 0.5 mΩ to 5 Ω. Input capacitance of ≥1.0 µF is recommended adjacent to the Vin pin. No series resistance or additional compensation network is needed - simplifying design and reducing BOM count versus older LDO architectures.
How does the enable pin function on the NCV612SQ50T1G?
The enable pin on the NCV612SQ50T1G is active-high: pulling it ≥0.95 V enables regulation; holding it ≤0.3 V disables output and reduces quiescent current to <1 µA. If unused, it must be tied directly to Vin - floating the pin risks erratic behavior. This feature enables precise power sequencing in multi-rail automotive systems controlled by microcontrollers or PMICs.
Is the NCV612SQ50T1G pin-compatible with other regulators in the NCV612 family?
Yes, all NCV612 variants - including NCV612SQ15T1G, NCV612SQ33T1G, and NCV612SQ50T1G - share identical SC70-5 pinout (Vin, Gnd, Enable, N/C, Vout) and thermal/mechanical footprint. Only the output voltage and marking code differ, enabling drop-in replacement across voltage options without PCB redesign.
What protection features are integrated into the NCV612SQ50T1G?
The NCV612SQ50T1G integrates overcurrent limiting, thermal shutdown (triggering at ~160 °C junction temperature), and reverse-voltage protection. These functions operate autonomously without external circuitry - preventing catastrophic failure during short-circuited loads, excessive ambient heat, or incorrect battery polarity connection in automotive assembly lines.
NCV612SQ50T1G 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):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.3V @ 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)
NCV612SQ50T1G FAQ
1.How can I place an order for NCV612SQ50T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV612SQ50T1G 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 NCV612SQ50T1G reliable?
The price and inventory of NCV612SQ50T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV612SQ50T1G is usually 5 days.
3.What payment methods are accepted for NCV612SQ50T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV612SQ50T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV612SQ50T1G?
NCV612SQ50T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV612SQ50T1G 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 NCV612SQ50T1G?
For technical support, including NCV612SQ50T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV612SQ50T1G requirements.
6.How does Aetrix verify that NCV612SQ50T1G is sourced from the original manufacturer or authorized distributors?
All NCV612SQ50T1G 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 NCV612SQ50T1G meets industry standards.
7.What is the process for return or replacement of NCV612SQ50T1G?
All NCV612SQ50T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCV612SQ50T1G, 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 NCV612SQ50T1G part is unused and in its original packaging.
Return procedure for NCV612SQ50T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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