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

onsemi NCV612SQ15T2G

Name: NCV612SQ15T2G
Brand: onsemi
SKU: NCV612SQ15T2G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: NCV612SQ15T2G

Manufacturer:: onsemi

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

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

Datasheet:: NCV612SQ15T2G.pdf

Description:: IC REG LINEAR 1.5V 100MA SC88A

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Product details

Overview

NCV612SQ15T2G from onsemi is an automotive-grade, fixed-output CMOS low-dropout linear regulator delivering 100 mA at 1.5 V with ultra-low quiescent current (40 µA typical), 230 mV dropout at 100 mA, and ±2.0% output voltage accuracy over −40 °C to +125 °C - designed for battery-powered infotainment modules and ADAS sensor power rails.

For engineers reviewing the NCV612SQ15T2G datasheet, pinout, applications, or equivalent options, key selection criteria include AEC-Q100 qualification, SC70-5 thermal performance under 125 °C ambient, enable-controlled shutdown, and compatibility with 1.0 µF ceramic output capacitors without ESR constraints.

Technical Context

The NCV612SQ15T2G 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 (V_TH(en) = 0.95 V high, 0.3 V low), and it operates with input voltages from 1.8 V to 6.0 V.

Designed for automotive environments, it features internal thermal shutdown (trip ~160 °C), −40 °C to +125 °C operating ambient range, and AEC-Q100 Grade 1 qualification. Output voltage remains stable across load (1–100 mA) and line (V_IN = V_OUT + 1.0 V to 6.0 V) variations, with 100 µV_RMS noise (100 Hz–100 kHz).

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 1.5 V ±2.0% over −40 °C to +125 °C - ensures stable core supply for low-voltage MCUs and sensors.
Max Output Current	100 mA continuous - sufficient for powering single-core microcontrollers or camera ISP blocks.
Dropout Voltage	230 mV at 100 mA - enables operation from 1.73 V input, supporting LiFePO₄ or partially discharged Li-ion cells.
Quiescent Current	40 µA typical - extends battery life in always-on vehicle telematics and wake-up circuits.
Enable Threshold	0.95 V (logic high turn-on), 0.3 V (logic low turn-off) - compatible with 1.8 V and 3.3 V GPIOs without level-shifting.
Thermal Protection	Internal shutdown at ~160 °C junction - prevents latch-up during transient overload or poor PCB heatsinking.
Noise Performance	100 µV_RMS (100 Hz–100 kHz) - suitable for analog front-ends and precision ADC references.

Pinout & Package

Housed in the SC70-5 (SOT-353) surface-mount package (case 419A), the NCV612SQ15T2G uses a 5-pin layout optimized for space-constrained automotive modules. The package features exposed pad thermal enhancement and Pb-free construction.

Pin/Terminal	Circuit Role	Design Meaning
1	Vin	Positive input supply (1.8–6.0 V); requires local 1.0 µF ceramic decoupling.
2	Gnd	Power ground reference; must connect to low-impedance PCB plane for stability.
3	Enable	Active-high digital control; pull to Vin for always-on operation, or drive with MCU GPIO.
4	N/C	No internal connection - leave unconnected; not usable as thermal pad or auxiliary terminal.
5	Vout	Regulated 1.5 V output; supports 1.0 µF+ ceramic capacitor with no ESR requirement.

Key Features

Feature	Design Value
AEC-Q100 Qualified	Grade 1 (−40 °C to +125 °C ambient) - certified for engine bay and cabin electronics per automotive reliability standards.
Ultra-Low I_Q	40 µA typical - reduces standby power loss in ignition-off vehicle networks (e.g., CAN wake-up receivers).
Low-ESR Cap Compatible	Stable with 1.0 µF ceramic output capacitors (0–5 Ω ESR) - eliminates need for costly tantalum or polymer caps.
Integrated Protection	Thermal shutdown + current limit - prevents damage during short-circuit or thermal overload without external circuitry.
Pb-Free & RoHS Compliant	SC70-5 package with "G" suffix - meets global automotive environmental compliance requirements (ELV, REACH).

Applications

Infotainment Power Rail	ADAS Camera Module
Use Scenario: Providing clean 1.5 V bias to audio codec ICs and touch controller ASICs in head-unit systems. IC Role / Device Role / Timing Role: Primary LDO for low-noise analog supply domain; replaces discrete regulators requiring external compensation. Use Value: 100 µV_RMS noise and ±2.0% accuracy prevent audible distortion and touch sensitivity drift across temperature.	Use Scenario: Powering image signal processors (ISPs) and MIPI interface buffers in rear-view and surround-view cameras. IC Role / Device Role / Timing Role: Point-of-load regulator for 1.5 V core logic; enabled only during active video capture to minimize system quiescent draw. Use Value: 40 µA I_Q and fast enable response (<1 ms turn-on) support low-power parking mode with instant wake-up capability.
Telematics Control Unit	Body Control Module Sensor Interface
Use Scenario: Supplying 1.5 V to GNSS baseband processors and cellular modem RF sections in connected car gateways. IC Role / Device Role / Timing Role: Secondary regulated rail derived from 3.3 V main supply; controlled via CAN-initiated enable signal. Use Value: Dropout of 230 mV allows reliable operation during cold-crank (input dip to 5.5 V) without brownout reset.	Use Scenario: Powering Hall-effect position sensors and LIN transceivers in door module ECUs. IC Role / Device Role / Timing Role: Always-on LDO for sensor biasing; leverages NCV prefix for PPAP traceability and lot-control in safety-critical subsystems. Use Value: −40 °C to +125 °C operation and AEC-Q100 qualification ensure functional integrity in under-hood and door cavity environments.

Infotainment Power Rail

ADAS Camera Module

Use Scenario: Providing clean 1.5 V bias to audio codec ICs and touch controller ASICs in head-unit systems.

IC Role / Device Role / Timing Role: Primary LDO for low-noise analog supply domain; replaces discrete regulators requiring external compensation.

Use Value: 100 µV_RMS noise and ±2.0% accuracy prevent audible distortion and touch sensitivity drift across temperature.

Use Scenario: Powering image signal processors (ISPs) and MIPI interface buffers in rear-view and surround-view cameras.

IC Role / Device Role / Timing Role: Point-of-load regulator for 1.5 V core logic; enabled only during active video capture to minimize system quiescent draw.

Use Value: 40 µA I_Q and fast enable response (<1 ms turn-on) support low-power parking mode with instant wake-up capability.

Telematics Control Unit

Body Control Module Sensor Interface

Use Scenario: Supplying 1.5 V to GNSS baseband processors and cellular modem RF sections in connected car gateways.

IC Role / Device Role / Timing Role: Secondary regulated rail derived from 3.3 V main supply; controlled via CAN-initiated enable signal.

Use Value: Dropout of 230 mV allows reliable operation during cold-crank (input dip to 5.5 V) without brownout reset.

Use Scenario: Powering Hall-effect position sensors and LIN transceivers in door module ECUs.

IC Role / Device Role / Timing Role: Always-on LDO for sensor biasing; leverages NCV prefix for PPAP traceability and lot-control in safety-critical subsystems.

Use Value: −40 °C to +125 °C operation and AEC-Q100 qualification ensure functional integrity in under-hood and door cavity environments.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
NCV8170ASN150T1G	Higher I_Q (1.2 µA typ), lower max I_OUT (150 mA), same SC70-5 package and 1.5 V output.	Optimized for ultra-low-power IoT nodes; lacks AEC-Q100 qualification and automotive temp range.	Select when cost-sensitive non-automotive designs require sub-µA quiescent current and higher output current margin.
TLV73315PDBVR	Lower dropout (170 mV @ 100 mA), 300 mA rating, SOT-23-5 package - larger footprint and different pinout.	Industrial-grade (−40 °C to +125 °C) but not AEC-Q100 qualified; no enable pin - always-on operation only.	Choose for space-tolerant industrial applications needing higher current and tighter dropout, where enable control is unnecessary.

Compared with NCV612SQ15T2G, NCV8170ASN150T1G offers lower quiescent current but lacks automotive qualification, while TLV73315PDBVR provides better dropout and current capability in a non-pin-compatible package - making NCV612SQ15T2G the only AEC-Q100-compliant 1.5 V SC70-5 LDO with enable and 40 µA I_Q in this performance class.

Availability

NCV612SQ15T2G is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS camera modules, and telematics control units requiring stable component supply with full AEC-Q100 traceability and PPAP documentation support.

Supply support for NCV612SQ15T2G 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, analog, sensor, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.

The NCV612 series belongs to onsemi's automotive-qualified linear regulator portfolio, engineered specifically for low-power, high-reliability point-of-load regulation in harsh-temperature vehicle subsystems.

FAQ

What is the maximum input voltage rating for the NCV612SQ15T2G?

The NCV612SQ15T2G has an absolute maximum input voltage (V_IN) of 6.0 V, as specified in the Maximum Ratings table. Operation above this voltage risks permanent damage. For reliable 1.5 V output regulation, the recommended minimum input is V_OUT + 1.0 V (i.e., ≥2.5 V), with dropout increasing linearly below that margin. The NCV612SQ15T2G maintains regulation down to 1.73 V input at full 100 mA load.

Does the NCV612SQ15T2G require an external capacitor on the Enable pin?

No, the NCV612SQ15T2G does not require an external capacitor on the Enable pin. The enable input is a CMOS-compatible digital control node with negligible input current (nA range). If unused, the pin must be tied directly to Vin to ensure default-on operation; floating the pin is prohibited and may cause erratic behavior. No filtering or debouncing capacitor is needed unless system-level EMI mitigation dictates otherwise.

Is the NCV612SQ15T2G pin-compatible with other variants in the NCV612 family?

Yes, all NCV612 variants - including NCV612SQ15T2G, NCV612SQ25T2G, and NCV612SQ33T2G - share identical SC70-5 pinout, package dimensions, and electrical interface. Only the output voltage and marking code differ; no PCB redesign is required when substituting between fixed-voltage versions within the same temperature grade and enable configuration.

What is the thermal resistance (R_JA) of the NCV612SQ15T2G in standard JEDEC PCB layout?

The datasheet specifies R_JA = 300 °C/W for the SC70-5 package under standard JEDEC High-K test board conditions (JESD51-7). Actual R_JA depends heavily on PCB copper area: with 100 mm² of 1 oz. copper connected to Pin 2 (Gnd) and Pin 1 (Vin), R_JA improves to ~180 °C/W. At 25 °C ambient, the NCV612SQ15T2G can dissipate up to 330 mW before reaching its 125 °C junction limit.

Can the NCV612SQ15T2G be used with ceramic capacitors smaller than 1.0 µF?

No - the NCV612SQ15T2G is characterized and guaranteed stable only with ≥1.0 µF ceramic output capacitance, as confirmed in the Applications Information section. Using smaller values (e.g., 0.47 µF) may cause oscillation or degraded load transient response due to insufficient phase margin. Input capacitance also requires ≥1.0 µF ceramic placed close to Pins 1 and 2; both C_IN and C_OUT must meet this minimum for full specification compliance.

NCV612SQ15T2G 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):: 1.5V

Voltage - Output (Max):: -

Voltage Dropout (Max):: 0.68V @ 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)

NCV612SQ15T2G FAQ

1.How can I place an order for NCV612SQ15T2G through Aetrix?

Please submit a Request for Quotation (RFQ) for NCV612SQ15T2G 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 NCV612SQ15T2G reliable?

The price and inventory of NCV612SQ15T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV612SQ15T2G is usually 5 days.

3.What payment methods are accepted for NCV612SQ15T2G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV612SQ15T2G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for NCV612SQ15T2G?

NCV612SQ15T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your NCV612SQ15T2G 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 NCV612SQ15T2G?

For technical support, including NCV612SQ15T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV612SQ15T2G requirements.

6.How does Aetrix verify that NCV612SQ15T2G is sourced from the original manufacturer or authorized distributors?

All NCV612SQ15T2G 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 NCV612SQ15T2G meets industry standards.

7.What is the process for return or replacement of NCV612SQ15T2G?

All NCV612SQ15T2G units undergo pre-shipment inspection (PSI). If there is an issue with NCV612SQ15T2G, 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 NCV612SQ15T2G part is unused and in its original packaging.

Return procedure for NCV612SQ15T2G:

1.Submit a request within 90 days.

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

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