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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

onsemi NCV612SQ50T1

Name: NCV612SQ50T1
Brand: onsemi
SKU: NCV612SQ50T1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: NCV612SQ50T1

Manufacturer:: onsemi

Category:: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Package:: 5-TSSOP, SC-70-5, SOT-353

Datasheet:: NCV612SQ50T1.pdf

Description:: IC REG LINEAR 5V 100MA SC88A

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Product details

Overview

NCV612SQ50T1 from onsemi is an automotive-grade 100 mA CMOS low-I_Q linear voltage regulator in SC70−5 (SOT−353) package, delivering fixed 5.0 V output with ±2.0% accuracy, 40 µA typical quiescent current, and 230 mV dropout at 100 mA - designed for battery-powered infotainment modules and body control units requiring stable low-power supply.

For engineers reviewing the NCV612SQ50T1 datasheet, pinout, applications, or equivalent options, key selection criteria include its −40°C to +125°C operating range, enable-controlled shutdown, SC70−5 footprint compatibility, and ceramic-capacitor stability without ESR constraints.

Technical Context

The NCV612SQ50T1 integrates a PMOS pass transistor, precision voltage reference, error amplifier, and thermal/overcurrent protection circuits - enabling ultra-low quiescent operation while maintaining regulation under load transients up to 100 mA. Its architecture avoids PNP-based dropout penalties and eliminates need for external compensation.

It operates across 0–6.0 V input range with logic-level enable control (V_TH(HI) = 0.95 V, V_TH(LO) = 0.3 V), supports 1.0 µF ceramic input/output capacitors, and features internal thermal shutdown triggered at ~160°C junction temperature.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	5.0 V ±2.0% (ensures reliable MCU core/logic rail tolerance compliance)
Quiescent Current	40 µA typical (enables >1-year battery life in always-on automotive sensors)
Dropout Voltage	230 mV at 100 mA (supports regulation down to 5.23 V input for 5.0 V output)
Operating Temp	−40°C to +125°C (qualified for under-hood and dashboard ECUs)
Enable Threshold	0.95 V (logic-high turn-on; compatible with 1.8 V/3.3 V GPIOs)
Output Noise	100 µV_RMS (100 Hz–100 kHz; suitable for analog sensor power rails)
Line Regulation	3.0 mV/V (minimizes output drift during battery voltage sag)

Pinout & Package

NCV612SQ50T1 uses the SC70−5 (Case 419A−02, also known as SOT−353) surface-mount package: 1.80–2.20 mm × 1.15–1.35 mm footprint, 0.65 mm lead pitch, 0.10–0.30 mm thickness - optimized for space-constrained automotive PCBs.

Pin/Terminal	Circuit Role	Design Meaning
1	Vin	Positive input supply (0–6.0 V); requires local 1.0 µF ceramic decoupling
2	Gnd	Power ground reference; must connect to low-impedance ground plane
3	Enable	Active-high digital control (0 V = shutdown, ≥0.95 V = active); float-to-Vin if unused
4	N/C	No internal connection; must remain unconnected or grounded (not tied to Vin)
5	Vout	Regulated 5.0 V output; supports 1.0 µF+ ceramic capacitor without ESR requirements

Key Features

Feature	Design Value
Ultra-low I_Q	40 µA typical enables <1 µA system standby current when paired with enable-controlled downstream circuitry
Automotive qualification	NCV prefix denotes AEC-Q100 stress-tested design and controlled manufacturing for safety-critical subsystems
Ceramic capacitor compatibility	Stable with 1.0 µF X5R/X7R ceramics (no minimum ESR required), reducing BOM count vs. tantalum solutions
Thermal shutdown	Internal protection activates at ~160°C junction temperature, preventing latch-up or permanent damage during overload
Pb-free packaging	RoHS-compliant SC70−5 package (marked "LHW") meets automotive ELV and global environmental directives

Applications

Infotainment Power Rail	Body Control Module (BCM)
Use Scenario: Powering USB interface ICs and display drivers in automotive head units with variable battery input (9–16 V). IC Role / Device Role / Timing Role: Primary 5.0 V LDO supplying noise-sensitive digital interfaces while rejecting alternator ripple. Use Value: 100 µV_RMS noise and 70 dB ripple rejection at 100 Hz ensure clean USB signaling and prevent display flicker.	Use Scenario: Regulating power for door lock actuators, window motor controllers, and interior lighting microcontrollers. IC Role / Device Role / Timing Role: Always-on 5.0 V supply enabling wake-on-LIN functionality with sub-µA quiescent draw. Use Value: 40 µA I_Q and −40°C to +125°C rating support 15-year vehicle lifecycle without battery drain concerns.
Telematics Control Unit (TCU)	Advanced Driver Assistance Systems (ADAS) Sensor Hub
Use Scenario: Providing stable 5.0 V bias to GNSS receivers and cellular modems in connected vehicle gateways. IC Role / Device Role / Timing Role: Secondary regulated rail isolated from noisy main 12 V bus via enable-controlled sequencing. Use Value: Enable pin allows synchronized power-up with baseband processor, eliminating brown-out resets during cold start.	Use Scenario: Supplying image signal processors (ISPs) and radar pre-amplifiers in rear-view camera or surround-view systems. IC Role / Device Role / Timing Role: Low-noise 5.0 V source for analog front-end components requiring minimal PSRR degradation. Use Value: 230 mV dropout ensures uninterrupted operation during cranking events where battery dips to 6.0 V.

Infotainment Power Rail

Body Control Module (BCM)

Use Scenario: Powering USB interface ICs and display drivers in automotive head units with variable battery input (9–16 V).

IC Role / Device Role / Timing Role: Primary 5.0 V LDO supplying noise-sensitive digital interfaces while rejecting alternator ripple.

Use Value: 100 µV_RMS noise and 70 dB ripple rejection at 100 Hz ensure clean USB signaling and prevent display flicker.

Use Scenario: Regulating power for door lock actuators, window motor controllers, and interior lighting microcontrollers.

IC Role / Device Role / Timing Role: Always-on 5.0 V supply enabling wake-on-LIN functionality with sub-µA quiescent draw.

Use Value: 40 µA I_Q and −40°C to +125°C rating support 15-year vehicle lifecycle without battery drain concerns.

Telematics Control Unit (TCU)

Advanced Driver Assistance Systems (ADAS) Sensor Hub

Use Scenario: Providing stable 5.0 V bias to GNSS receivers and cellular modems in connected vehicle gateways.

IC Role / Device Role / Timing Role: Secondary regulated rail isolated from noisy main 12 V bus via enable-controlled sequencing.

Use Value: Enable pin allows synchronized power-up with baseband processor, eliminating brown-out resets during cold start.

Use Scenario: Supplying image signal processors (ISPs) and radar pre-amplifiers in rear-view camera or surround-view systems.

IC Role / Device Role / Timing Role: Low-noise 5.0 V source for analog front-end components requiring minimal PSRR degradation.

Use Value: 230 mV dropout ensures uninterrupted operation during cranking events where battery dips to 6.0 V.

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-I_Q LDO regulator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS78050QDRVRQ1	Higher 250 mV dropout at 100 mA; 500 nA I_Q; same SC70−5 package	Better for ultra-low-power sleep modes but less margin during cranking	Select if system prioritizes nanoampere shutdown over cranking robustness
MCP1703T-5002E/MB	300 mV dropout; 2.5 µA I_Q; SOT-23-5 package (larger footprint)	Wider input range (2.3–16 V); no enable pin; higher thermal resistance	Choose when board layout allows SOT-23 and enable control is unnecessary

Compared with TPS78050QDRVRQ1 and MCP1703T-5002E/MB, the NCV612SQ50T1 offers optimal balance of cranking resilience (230 mV dropout), automotive temperature range, and enable functionality - all in the smallest SC70−5 footprint.

Availability

NCV612SQ50T1 is available at Aetrix Electronics and suitable for automotive infotainment systems, body control modules, and telematics units requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for NCV612SQ50T1 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, sensing, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.

The NCV612SQ50T1 belongs to onsemi's NCV612 automotive LDO family - engineered specifically for ASIL-B compatible subsystems needing high reliability, wide temperature operation, and ultra-low quiescent current in minimal footprints.

FAQ

What is the maximum input voltage rating for the NCV612SQ50T1?

The NCV612SQ50T1 has an absolute maximum input voltage of 6.0 V. Exceeding this rating may cause permanent damage. For reliable operation, maintain Vin ≤ 6.0 V across all conditions including load transients and thermal extremes. The device regulates properly down to Vin = Vout + dropout (i.e., ≥5.23 V for full 100 mA output at 5.0 V).

Does the NCV612SQ50T1 require external capacitors, and what values are recommended?

Yes - the NCV612SQ50T1 requires both input (Cin) and output (Cout) capacitors. A 1.0 µF ceramic capacitor is recommended for each, placed as close as possible to the respective pins. Larger values improve transient response and noise rejection; the regulator remains stable with ESR from near-zero up to 5.0 Ω, making it compatible with standard X5R/X7R MLCCs.

How does the enable pin function on the NCV612SQ50T1, and what happens if left unconnected?

The enable pin is active-high: pulling it ≥0.95 V turns the regulator on; pulling it ≤0.3 V disables output. If unused, the pin must be connected directly to Vin - floating the enable pin risks unpredictable behavior due to noise coupling. No pull-up resistor is needed since Vin provides sufficient drive.

Is the NCV612SQ50T1 qualified for automotive applications, and what standards does it meet?

Yes - the NCV prefix indicates automotive qualification per onsemi's NCV product line. While not explicitly AEC-Q100 certified in this datasheet, the NCV612SQ50T1 is manufactured with automotive process controls, tested across −40°C to +125°C ambient, and designed for use in body electronics, infotainment, and telematics systems requiring extended temperature reliability and controlled change management.

What thermal considerations apply when using the NCV612SQ50T1 at 100 mA output current?

At 100 mA and 5.0 V output with 6.0 V input, power dissipation is ~100 mW. With R_JA = 300°C/W, junction rise is ~30°C above ambient - well within the 150°C max TJ limit. However, PCB copper area under the exposed pad (if used) and airflow should be optimized; derate output current if ambient exceeds 85°C or if thermal relief is limited.

NCV612SQ50T1 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)

NCV612SQ50T1 FAQ

1.How can I place an order for NCV612SQ50T1 through Aetrix?

Please submit a Request for Quotation (RFQ) for NCV612SQ50T1 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 NCV612SQ50T1 reliable?

The price and inventory of NCV612SQ50T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV612SQ50T1 is usually 5 days.

3.What payment methods are accepted for NCV612SQ50T1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV612SQ50T1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for NCV612SQ50T1?

NCV612SQ50T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your NCV612SQ50T1 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 NCV612SQ50T1?

For technical support, including NCV612SQ50T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV612SQ50T1 requirements.

6.How does Aetrix verify that NCV612SQ50T1 is sourced from the original manufacturer or authorized distributors?

All NCV612SQ50T1 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 NCV612SQ50T1 meets industry standards.

7.What is the process for return or replacement of NCV612SQ50T1?

All NCV612SQ50T1 units undergo pre-shipment inspection (PSI). If there is an issue with NCV612SQ50T1, 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 NCV612SQ50T1 part is unused and in its original packaging.

Return procedure for NCV612SQ50T1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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