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

onsemi NCV6323FELMTW12TBG

Name: NCV6323FELMTW12TBG
Brand: onsemi
SKU: NCV6323FELMTW12TBG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: NCV6323FELMTW12TBG

Manufacturer:: onsemi

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 8-WFDFN Exposed Pad

Datasheet:: NCV6323FELMTW12TBG.pdf

Description:: IC REG BUCK 1.2V 1.6A 8WDFNW

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Product details

Overview

NCV6323FELMTW12TBG from onsemi is a 3 MHz, 1.6 A synchronous buck converter with fixed 1.2 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 ≤ 250 mΩ at 3.3 V) and low-side N-MOSFET (RON ≤ 180 mΩ), delivers ±2% DC output voltage accuracy, and features Power Good (PG) monitoring and thermal shutdown at 150°C.

For engineers reviewing the NCV6323FELMTW12TBG datasheet, pinout, applications, or equivalent options, this page provides verified technical context, validated pin functions, confirmed automotive-grade operating conditions (−40°C to +125°C), and real-world load/line transient performance data per Figure 40–41 and Table 5–7.

Technical Context

The NCV6323FELMTW12TBG implements voltage-mode PWM control with fixed 3.0 MHz switching frequency (±10%), enabling compact 1.0 µH inductor and 10 µF ceramic output capacitor designs. Its integrated feedback network eliminates external resistor dividers, and internal compensation supports stable operation across 1.2 V output with up to 1.6 A DC load at 85°C ambient.

It uses synchronous rectification with dead-time control to prevent shoot-through, supports enable-controlled sequencing via EN pin (1.1 V logic-high threshold), and monitors regulation status via open-drain PG output with 90% nominal VOUT low-threshold and 2.5% hysteresis - all qualified to AEC-Q100 Grade 1.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 1.2 V ±2% DC error over −40°C to +125°C junction temperature and 0–1 A load.
Max Output Current	1.6 A DC at TA ≤ 85°C; derates to 1.2 A at TA ≤ 105°C - validated with 2x2 mm WDFN package thermal resistance (J_B = 20°C/W).
Switching Frequency	3.0 MHz ±0.3 MHz - enables <1.0 µH inductors and <10 µF ceramic output capacitors for space-constrained automotive modules.
Input Voltage Range	2.8 V to 5.5 V - supports direct connection to common automotive pre-regulator rails (e.g., 3.3 V or 5.0 V systems).
Quiescent Current	7.8 mA typical at no load and VOUT > 1.8 V - optimized for always-on ADAS camera subsystems requiring low standby power.
Thermal Shutdown	150°C junction threshold with 25°C hysteresis - protects against sustained overload or poor PCB heat sinking in sealed enclosures.
Power Good Accuracy	PG asserts high when VOUT ≥ 90% of 1.2 V (1.08 V); de-asserts low at ≤87.5% (1.05 V) - ensures reliable system-level power sequencing.

Pinout & Package

The NCV6323FELMTW12TBG is housed in a wettable flank DFN-8 (WDFNW8), 2.0 × 2.0 mm, 0.5 mm pitch, 0.8 mm max height package (Case 511CL), with exposed thermal pad (EPAD) internally connected to AGND.

Pin/Terminal	Circuit Role	Design Meaning
1 - PGND	Power Ground	High-current switch return path; requires local ground plane and single-point analog/power ground tie to minimize noise coupling into FB.
2 - SW	Switch Node	Drives external inductor; must use short, wide copper traces to reduce EMI and voltage spikes during 3 MHz switching transitions.
3 - AGND	Analog Ground	Reference for FB, AVIN, and internal error amplifier; connects to EPAD and system ground at one point only.
4 - FB	Feedback Input	Direct connection to output rail near CO_OUT (+) terminal; sensitive to noise - routing must avoid SW and PGND paths.
5 - EN	Enable Control	Logic-compatible input (V_{EN_H} ≥ 1.1 V); internal 5 µs filter prevents false triggering from board-level noise.
6 - PG	Power Good Output	Open-drain signal; requires external pull-up to AVIN or system rail; indicates regulation status with 8 µs delay after startup.
7 - AVIN	Analog Supply	Bias supply for internal circuitry; bypassed with 1 µF ceramic capacitor close to pin to suppress analog noise.
8 - PVIN	Power Supply	Main input power path for MOSFET drivers; requires ≥10 µF ceramic capacitor placed adjacent to pin with low-ESR layout.
9 - EPAD	Thermal Pad	Exposed copper pad soldered to PCB ground plane; primary thermal path (J_CBOT = 43°C/W) - mandatory for 1.6 A operation.

Key Features

Feature	Design Value
AEC-Q100 Qualified	Grade 1 (−40°C to +125°C T_J) qualification enables use in front/rear camera, surround-view, and blind-spot monitoring modules without additional reliability testing.
Synchronous Rectification	Integrated high-side P-MOSFET (RON ≤ 250 mΩ) and low-side N-MOSFET (RON ≤ 180 mΩ) eliminate external diode losses, achieving >90% efficiency at 500 mA load (Fig. 15).
Integrated Compensation	Internal Type-II compensation network removes need for external RC components - reduces BOM count and layout sensitivity for 1.2 V output.
Soft-Start Timing	420 µs typical soft-start time (T_SS) limits inrush current during power-up - critical for preventing brown-out in shared 3.3 V pre-regulator domains.
UVLO with Hysteresis	2.8 V turn-on / 2.62 V turn-off thresholds with 150 mV hysteresis prevent oscillation during battery droop events in automotive cold-crank conditions.

Applications

Front Camera Power Supply	Rear View Camera Module
Use Scenario: Powers image sensor and ISP in automotive front-facing ADAS camera, operating continuously under engine hood temperatures up to 85°C ambient. IC Role / Device Role / Timing Role: Primary 1.2 V point-of-load regulator delivering stable 1.2 V to processor core, synchronized to system enable sequence via EN pin. Use Value: 3 MHz switching minimizes inductor size (<1.0 mm height), enabling ultra-thin camera housing; PG output validates rail integrity before sensor initialization.	Use Scenario: Supplies 1.2 V to CMOS image sensor and video encoder in rear-view backup camera, exposed to trunk compartment thermal cycling. IC Role / Device Role / Timing Role: Fixed-output buck converter with thermal shutdown (150°C) protecting against enclosure overheating during summer parking. Use Value: Integrated MOSFETs and compensation reduce component count by 4 vs discrete solutions; wettable flank package enables automated optical inspection (AOI) of solder joints.
Surround-View Processing Unit	Blind Spot Detection ECU
Use Scenario: Powers multi-core vision SoC in 4-camera surround-view system, where multiple NCV6323FELMTW12TBG units supply individual processing lanes. IC Role / Device Role / Timing Role: Synchronized 3 MHz PWM regulator supporting tight timing margins between camera frame capture and stitching latency. Use Value: ±2% output accuracy ensures consistent digital logic voltage margins across all four lanes; PG outputs feed centralized health monitor.	Use Scenario: Provides 1.2 V to radar signal processor and CAN interface in blind spot detection module mounted behind rear bumper. IC Role / Device Role / Timing Role: AEC-Q100-compliant buck converter with EN-controlled sequencing aligned to vehicle wake-up protocol over LIN bus. Use Value: Low quiescent current (7.8 mA) extends battery life during vehicle sleep mode; UVLO hysteresis prevents false resets during ignition transients.

Front Camera Power Supply

Rear View Camera Module

Use Scenario: Powers image sensor and ISP in automotive front-facing ADAS camera, operating continuously under engine hood temperatures up to 85°C ambient.

IC Role / Device Role / Timing Role: Primary 1.2 V point-of-load regulator delivering stable 1.2 V to processor core, synchronized to system enable sequence via EN pin.

Use Value: 3 MHz switching minimizes inductor size (<1.0 mm height), enabling ultra-thin camera housing; PG output validates rail integrity before sensor initialization.

Use Scenario: Supplies 1.2 V to CMOS image sensor and video encoder in rear-view backup camera, exposed to trunk compartment thermal cycling.

IC Role / Device Role / Timing Role: Fixed-output buck converter with thermal shutdown (150°C) protecting against enclosure overheating during summer parking.

Use Value: Integrated MOSFETs and compensation reduce component count by 4 vs discrete solutions; wettable flank package enables automated optical inspection (AOI) of solder joints.

Surround-View Processing Unit

Blind Spot Detection ECU

Use Scenario: Powers multi-core vision SoC in 4-camera surround-view system, where multiple NCV6323FELMTW12TBG units supply individual processing lanes.

IC Role / Device Role / Timing Role: Synchronized 3 MHz PWM regulator supporting tight timing margins between camera frame capture and stitching latency.

Use Value: ±2% output accuracy ensures consistent digital logic voltage margins across all four lanes; PG outputs feed centralized health monitor.

Use Scenario: Provides 1.2 V to radar signal processor and CAN interface in blind spot detection module mounted behind rear bumper.

IC Role / Device Role / Timing Role: AEC-Q100-compliant buck converter with EN-controlled sequencing aligned to vehicle wake-up protocol over LIN bus.

Use Value: Low quiescent current (7.8 mA) extends battery life during vehicle sleep mode; UVLO hysteresis prevents false resets during ignition transients.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MPQ2169GJ-AEC1-P	2.5–6.5 V input; 1.2 A max output; 2 MHz switching; external compensation required.	Lacks integrated PG output and soft-start; requires external feedback resistors for 1.2 V setting.	Choose when lower cost and 2 MHz operation suffice, but accept added design complexity and reduced integration.
TPS62231QDGSRQ1	2.05–6.0 V input; 600 mA max output; 3.6 MHz switching; integrated PG and soft-start.	Lower current rating (0.6 A vs 1.6 A); not qualified to AEC-Q100 Grade 1 (only Grade 2).	Use only in non-safety-critical, lower-power auxiliary rails where 1.2 A headroom is unnecessary.

Compared with MPQ2169GJ-AEC1-P and TPS62231QDGSRQ1, the NCV6323FELMTW12TBG uniquely combines AEC-Q100 Grade 1 qualification, 1.6 A capability at 85°C, integrated 1.2 V feedback, and wettable flank packaging - making it the only drop-in solution for thermally demanding ADAS camera cores.

Availability

NCV6323FELMTW12TBG is available at Aetrix Electronics and suitable for automotive ADAS camera modules, surround-view processing units, and blind spot detection ECUs requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for NCV6323FELMTW12TBG 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 and sensing technologies.

The NCV6323F series belongs to onsemi's automotive-qualified DC-DC converter product line, designed specifically for space-constrained, high-reliability ADAS sub-systems requiring fixed-output, high-efficiency, and AEC-Q100-compliant power conversion.

FAQ

What is the exact output voltage of the NCV6323FELMTW12TBG?

The NCV6323FELMTW12TBG delivers a factory-trimmed fixed output voltage of 1.2 V with ±2% DC accuracy over −40°C to +125°C junction temperature and 0–1 A load, as specified in Table 5 (VOUT12_200mA = 1.182–1.218 V at 200 mA). This value is unadjustable and does not require external feedback resistors.

Does the NCV6323FELMTW12TBG support power sequencing with other ICs?

Yes, the NCV6323FELMTW12TBG supports precise power sequencing via its EN pin (logic-compatible enable input) and PG pin (open-drain Power Good output). EN accepts 1.1 V high/0.4 V low thresholds with 5 µs internal filtering, while PG asserts high only after VOUT reaches ≥90% of 1.2 V with 8 µs delay - enabling reliable coordination with microcontrollers or FPGAs in ADAS systems.

What package type and thermal characteristics does the NCV6323FELMTW12TBG use?

The NCV6323FELMTW12TBG uses a wettable flank DFN-8 (WDFNW8) package, 2.0 × 2.0 mm, 0.5 mm pitch, 0.8 mm max height (Case 511CL), with exposed thermal pad (EPAD) internally tied to AGND. Its measured thermal resistance junction-to-board (J_B) is 20°C/W, enabling 1.6 A operation at 85°C ambient when properly soldered to a 4-layer PCB with thermal vias.

Is the NCV6323FELMTW12TBG qualified for automotive applications?

Yes, the NCV6323FELMTW12TBG is AEC-Q100 qualified (Grade 1: −40°C to +125°C T_J) and PPAP capable. It meets automotive requirements including UVLO hysteresis (150 mV), thermal shutdown (150°C), and robust ESD protection (HBM ±2 kV, CDM ±500 V), making it suitable for front/rear camera, surround-view, and blind spot monitoring systems.

What are the key layout recommendations for the NCV6323FELMTW12TBG?

Key layout rules for the NCV6323FELMTW12TBG include: (1) short/wide traces for SW and PVIN to minimize ringing; (2) local 10 µF ceramic capacitor directly at PVIN-to-PGND; (3) FB routed away from noisy nodes and connected directly to CO_OUT (+); (4) EPAD fully soldered to inner-layer ground plane with ≥6 thermal vias; and (5) AGND and PGND joined at single point near IC to avoid ground loops.

NCV6323FELMTW12TBG 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):: 1.2V

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)

NCV6323FELMTW12TBG FAQ

1.How can I place an order for NCV6323FELMTW12TBG through Aetrix?

Please submit a Request for Quotation (RFQ) for NCV6323FELMTW12TBG 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 NCV6323FELMTW12TBG reliable?

The price and inventory of NCV6323FELMTW12TBG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV6323FELMTW12TBG is usually 5 days.

3.What payment methods are accepted for NCV6323FELMTW12TBG?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV6323FELMTW12TBG transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for NCV6323FELMTW12TBG?

NCV6323FELMTW12TBG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your NCV6323FELMTW12TBG 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 NCV6323FELMTW12TBG?

For technical support, including NCV6323FELMTW12TBG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV6323FELMTW12TBG requirements.

6.How does Aetrix verify that NCV6323FELMTW12TBG is sourced from the original manufacturer or authorized distributors?

All NCV6323FELMTW12TBG 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 NCV6323FELMTW12TBG meets industry standards.

7.What is the process for return or replacement of NCV6323FELMTW12TBG?

All NCV6323FELMTW12TBG units undergo pre-shipment inspection (PSI). If there is an issue with NCV6323FELMTW12TBG, 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 NCV6323FELMTW12TBG part is unused and in its original packaging.

Return procedure for NCV6323FELMTW12TBG:

1.Submit a request within 90 days.

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

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