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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - DC DC Switching Regulators

onsemi NCV6323FELMTW11TBG

Name: NCV6323FELMTW11TBG
Brand: onsemi
SKU: NCV6323FELMTW11TBG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: NCV6323FELMTW11TBG

Manufacturer:: onsemi

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 8-WFDFN Exposed Pad

Datasheet:: NCV6323FELMTW11TBG.pdf

Description:: IC REG BUCK 1.1V 1.6A 8WDFNW

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Product details

Overview

NCV6323FELMTW11TBG from onsemi is a 3 MHz, 1.6 A synchronous buck converter with fixed 1.1 V output, optimized for automotive ADAS sub-systems powered from 2.8–5.5 V pre-regulator rails. It integrates high-side P-MOSFET (RON ≤ 170 mΩ at 3.3 V) and low-side N-MOSFET (RON ≤ 115 mΩ), delivers ±2% DC output voltage accuracy, and features Power Good (PG) monitoring and thermal shutdown at 150°C.

For engineers reviewing the NCV6323FELMTW11TBG datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q100 qualification, wettable flank DFN8 (2×2 mm, 0.5 mm pitch) package, 1.1 V fixed output, 3 MHz switching frequency enabling compact filter design, and integrated soft-start with 420 µs typical ramp time.

Technical Context

The NCV6323FELMTW11TBG implements voltage-mode PWM control with a fixed 3.0 MHz switching frequency and internal compensation. Its dual integrated MOSFETs-P-channel high-side (typ. R_ON = 170 mΩ) and N-channel low-side (typ. R_ON = 115 mΩ)-enable synchronous rectification without external components. The device uses an internal reference and factory-trimmed feedback network to deliver precisely 1.1 V ±2% over temperature and load.

It incorporates UVLO (2.8 V rising threshold, 150 mV hysteresis), enable logic with 4 µs input filtering, open-drain Power Good with 90% trip threshold and 2.5% hysteresis, and thermal shutdown at 150°C with 25°C hysteresis. Startup timing is characterized at 502 µs to 90% of 1.1 V output under standard conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 1.1 V ±2% - factory-trimmed, no external resistor required; supports core logic in automotive camera modules.
Max Output Current	1.6 A at T_A ≤ 85°C - enables single-chip power for image signal processors or radar SoCs in space-constrained ADAS ECUs.
Switching Frequency	3.0 MHz (2.7–3.3 MHz range) - allows use of sub-1 µH inductors and 10 µF ceramic output capacitors, reducing board area by >40% vs. 1 MHz converters.
Input Voltage Range	2.8 V to 5.5 V - compatible with automotive 3.3 V or 5.0 V pre-regulated rails; supports operation down to V_OUT + 0.5 V.
Quiescent Current	7.8 mA typ. at V_OUT > 1.8 V - ensures low standby power in always-on ADAS vision systems.
Thermal Protection	150°C shutdown with 25°C hysteresis - prevents irreversible damage during sustained overload or poor PCB heat sinking.
Power Good Accuracy	90% V_OUT trip threshold ±2.5% hysteresis - provides reliable system-level power sequencing and fault detection for microcontrollers.

Pinout & Package

NCV6323FELMTW11TBG is housed in a wettable flank DFN8 package (2.0 × 2.0 mm, 0.5 mm pitch, 0.8 mm max height), optimized for automated optical inspection (AOI) and high-reliability automotive solder joints. The exposed thermal pad (EPAD) is internally connected to AGND and must be soldered to a dedicated ground plane for thermal performance.

Pin/Terminal	Circuit Role	Design Meaning
1 PGND	Power Ground	High-current return path for switch node; requires local low-impedance ground plane to minimize noise coupling into analog sections.
2 SW	Switch Node	Drives external inductor; connects directly to high-side MOSFET drain and low-side MOSFET source; demands short, wide copper routing.
3 AGND	Analog Ground	Reference for FB, AVIN, and internal error amplifier; must be tied to system ground at single point, separate from PGND except at EPAD.
4 FB	Feedback Input	Monitors regulated output via internal resistive divider; connect directly to output capacitor's positive terminal to reject PCB trace impedance errors.
5 EN	Enable Input	Digital control pin (1.1 V high threshold); includes 4 µs RC filter to suppress noise-induced false toggling in automotive EMI environments.
6 PG	Power Good Output	Open-drain status flag; pulled low when V_OUT < 90% of 1.1 V; requires external pull-up for system monitoring or reset assertion.
7 AVIN	Analog Supply	Bias rail for internal analog circuitry; bypass with ≥1 µF ceramic capacitor close to pin to stabilize reference and error amp.
8 PVIN	Power Supply Input	Main input for high-side MOSFET driver; requires ≥10 µF ceramic capacitor placed adjacent to pin to suppress switching transients.
9 EPAD	Exposed Thermal Pad	Internally connected to AGND; mandatory solder connection to PCB ground plane for thermal resistance of 43°C/W (J–case bottom).

Key Features

Feature	Design Value
AEC-Q100 Grade 1 qualified	Validated for −40°C to +125°C junction operation - meets automotive reliability requirements for front/rear camera ECUs without derating.
Integrated MOSFETs with low R_ON	170 mΩ (HS) / 115 mΩ (LS) at 3.3 V - reduces conduction losses and eliminates need for external FETs or Schottky diodes.
3 MHz fixed-frequency PWM	Enables <1.0 µH inductor and 10 µF output capacitance - cuts solution size by ~50% vs. conventional 500 kHz buck regulators.
Factory-set 1.1 V output	No external feedback resistors required - simplifies BOM, improves production yield, and eliminates resistor tolerance drift impact on V_OUT.
Wettable flank DFN8 package	Facilitates AOI-compatible solder joint inspection - critical for zero-defect manufacturing in safety-critical ADAS applications.
Power Good with hysteresis	90% trip threshold + 2.5% hysteresis - prevents chatter during marginal regulation and enables robust system power sequencing.

Applications

Front Camera Power Supply	Rear View Camera Module
Use Scenario: Powers 1.1 V core rail of CMOS image sensor and ISP in automotive front-facing ADAS camera. IC Role / Device Role / Timing Role: Primary point-of-load regulator delivering stable 1.1 V at up to 1.6 A with fast transient response to sensor exposure changes. Use Value: 3 MHz switching minimizes inductor size (<1.0 µH), enabling integration into ultra-thin camera housings while maintaining <±2% output accuracy across −40°C to +105°C.	Use Scenario: Supplies 1.1 V core voltage to rear-view camera SoC in parking assistance systems. IC Role / Device Role / Timing Role: Fixed-output buck converter with Power Good signaling for MCU-controlled power sequencing and fault reporting. Use Value: AEC-Q100 qualification and thermal shutdown ensure reliable operation in high-temperature trunk environments; wettable flank package supports automated optical inspection for zero-defect manufacturing.
Blind Spot Monitoring ECU	Automotive Telematics Cluster
Use Scenario: Provides 1.1 V supply to radar signal processor in blind spot detection module mounted near side mirrors. IC Role / Device Role / Timing Role: High-efficiency synchronous buck regulator with low quiescent current (7.8 mA) for always-on sensing functionality. Use Value: Integrated MOSFETs and fixed 1.1 V output eliminate external components, reducing solution footprint by >30% versus discrete solutions while meeting ASIL-B functional safety constraints.	Use Scenario: Powers 1.1 V domain of infotainment SoC within telematics cluster requiring low-noise, tightly regulated supply. IC Role / Device Role / Timing Role: Compact, high-frequency DC-DC converter with soft-start (420 µs) to prevent inrush current during ignition-on sequencing. Use Value: 3 MHz operation suppresses switching noise above sensitive RF bands (e.g., GNSS, LTE), avoiding interference with wireless communication subsystems.

Front Camera Power Supply

Rear View Camera Module

Use Scenario: Powers 1.1 V core rail of CMOS image sensor and ISP in automotive front-facing ADAS camera.

IC Role / Device Role / Timing Role: Primary point-of-load regulator delivering stable 1.1 V at up to 1.6 A with fast transient response to sensor exposure changes.

Use Value: 3 MHz switching minimizes inductor size (<1.0 µH), enabling integration into ultra-thin camera housings while maintaining <±2% output accuracy across −40°C to +105°C.

Use Scenario: Supplies 1.1 V core voltage to rear-view camera SoC in parking assistance systems.

IC Role / Device Role / Timing Role: Fixed-output buck converter with Power Good signaling for MCU-controlled power sequencing and fault reporting.

Use Value: AEC-Q100 qualification and thermal shutdown ensure reliable operation in high-temperature trunk environments; wettable flank package supports automated optical inspection for zero-defect manufacturing.

Blind Spot Monitoring ECU

Automotive Telematics Cluster

Use Scenario: Provides 1.1 V supply to radar signal processor in blind spot detection module mounted near side mirrors.

IC Role / Device Role / Timing Role: High-efficiency synchronous buck regulator with low quiescent current (7.8 mA) for always-on sensing functionality.

Use Value: Integrated MOSFETs and fixed 1.1 V output eliminate external components, reducing solution footprint by >30% versus discrete solutions while meeting ASIL-B functional safety constraints.

Use Scenario: Powers 1.1 V domain of infotainment SoC within telematics cluster requiring low-noise, tightly regulated supply.

IC Role / Device Role / Timing Role: Compact, high-frequency DC-DC converter with soft-start (420 µs) to prevent inrush current during ignition-on sequencing.

Use Value: 3 MHz operation suppresses switching noise above sensitive RF bands (e.g., GNSS, LTE), avoiding interference with wireless communication subsystems.

Equivalent & Alternatives

The following parts are listed as comparable options for similar synchronous buck converter applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MPQ2171GJ-A	1.2 A max output, 2 MHz switching, adjustable output (0.6–5.5 V), no integrated PG	Lacks Power Good output and AEC-Q100 qualification; suitable for non-automotive industrial PoL where sequencing is handled externally	Select only if adjustable V_OUT and lower current are acceptable; not drop-in for automotive ADAS due to missing PG and qualification.
TPS6286418RRLR	1.5 A max, 4 MHz, 1.8 V fixed output, integrated PG, AEC-Q100 Grade 1	Delivers 1.8 V (not 1.1 V); requires redesign of downstream logic voltage domains	Use only when 1.8 V rail is needed; incompatible for 1.1 V core supplies without level-shifting or re-binning.

Compared with MPQ2171GJ-A and TPS6286418RRLR, the NCV6323FELMTW11TBG uniquely combines AEC-Q100 Grade 1, fixed 1.1 V output, integrated PG, and 3 MHz operation in a wettable flank DFN - making it the only direct fit for space-constrained, safety-compliant 1.1 V ADAS core supplies.

Availability

NCV6323FELMTW11TBG is available at Aetrix Electronics and suitable for automotive ADAS camera modules, blind spot monitoring systems, and telematics clusters requiring stable component supply, AEC-Q100 compliance, and compact high-frequency power conversion.

Supply support for NCV6323FELMTW11TBG 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 innovation for automotive, industrial, cloud, and IoT applications, with leadership in power management, imaging, and intelligent sensing.

The NCV6323F series belongs to onsemi's automotive-grade power management portfolio, designed specifically for high-reliability, space-optimized DC-DC conversion in ADAS and infotainment sub-systems operating from 2.8–5.5 V pre-regulated rails.

FAQ

What is the fixed output voltage of the NCV6323FELMTW11TBG?

The NCV6323FELMTW11TBG delivers a factory-trimmed fixed output voltage of 1.1 V with ±2% DC accuracy over temperature (−40°C to +125°C) and load (0–1.6 A). This value is laser-trimmed during production and requires no external feedback resistors - ensuring consistent performance across automotive operating conditions without calibration.

Does the NCV6323FELMTW11TBG support Power Good (PG) functionality?

Yes, the NCV6323FELMTW11TBG includes an open-drain Power Good (PG) output that asserts high-impedance when the 1.1 V output is within 90%–92.5% of nominal (i.e., 0.99–1.023 V) and pulls low otherwise. The PG pin has 2.5% hysteresis and 1.1 ms startup delay, enabling reliable system-level power sequencing and fault detection in automotive ECUs.

What package type and thermal characteristics does the NCV6323FELMTW11TBG use?

The NCV6323FELMTW11TBG uses a wettable flank DFN8 package (2.0 × 2.0 mm, 0.5 mm pitch, 0.8 mm max height) with an exposed thermal pad (EPAD) internally tied to AGND. Its thermal resistance junction-to-board (J–B) is 20°C/W on demo board, and junction-to-case bottom is 43°C/W - requiring soldered EPAD connection to a solid ground plane for optimal thermal performance in automotive ambient up to 105°C.

Is the NCV6323FELMTW11TBG qualified for automotive applications?

Yes, the NCV6323FELMTW11TBG is AEC-Q100 Grade 1 qualified (−40°C to +125°C junction) and PPAP-capable. It meets automotive reliability standards including HBM ESD (2 kV), CDM ESD (500 V), and latch-up immunity (100 mA), and is manufactured in IATF 16949-certified facilities - making it suitable for safety-critical ADAS camera, radar, and telematics applications.

What are the key differences between the NCV6323FELMTW11TBG and the NCV6323FELMTW10TBG?

The NCV6323FELMTW11TBG is configured for 1.1 V output, while the NCV6323FELMTW10TBG delivers 1.0 V. Both share identical package, switching frequency (3 MHz), current capability (1.6 A at 85°C), AEC-Q100 qualification, and feature set - differing only in factory-trimmed output voltage. Electrical characteristics such as load/line regulation and PG thresholds scale proportionally with nominal V_OUT.

NCV6323FELMTW11TBG Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: 8-WFDFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Function:: Step-Down

Output Configuration:: Positive

Topology:: Buck

Output Type:: Fixed

Number of Outputs:: 1

Voltage - Input (Min):: 2.8V

Voltage - Input (Max):: 5.5V

Voltage - Output (Min/Fixed):: 1.1V

Voltage - Output (Max):: -

Current - Output:: 1.6A

Frequency - Switching:: 3MHz

Synchronous Rectifier:: Yes

Operating Temperature:: -40°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount, Wettable Flank

Supplier Device Package:: 8-WDFNW (2x2)

NCV6323FELMTW11TBG FAQ

1.How can I place an order for NCV6323FELMTW11TBG through Aetrix?

Please submit a Request for Quotation (RFQ) for NCV6323FELMTW11TBG 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 NCV6323FELMTW11TBG reliable?

The price and inventory of NCV6323FELMTW11TBG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV6323FELMTW11TBG is usually 5 days.

3.What payment methods are accepted for NCV6323FELMTW11TBG?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV6323FELMTW11TBG transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for NCV6323FELMTW11TBG?

NCV6323FELMTW11TBG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your NCV6323FELMTW11TBG 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 NCV6323FELMTW11TBG?

For technical support, including NCV6323FELMTW11TBG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV6323FELMTW11TBG requirements.

6.How does Aetrix verify that NCV6323FELMTW11TBG is sourced from the original manufacturer or authorized distributors?

All NCV6323FELMTW11TBG 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 NCV6323FELMTW11TBG meets industry standards.

7.What is the process for return or replacement of NCV6323FELMTW11TBG?

All NCV6323FELMTW11TBG units undergo pre-shipment inspection (PSI). If there is an issue with NCV6323FELMTW11TBG, 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 NCV6323FELMTW11TBG part is unused and in its original packaging.

Return procedure for NCV6323FELMTW11TBG:

1.Submit a request within 90 days.

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

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