My Inquiry
My Account
onsemi NCV4263-2CD250R2G
- Part No.:
- NCV4263-2CD250R2G
- Manufacturer:
- onsemi
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
NCV4263-2CD250R2G.pdf
- Description:
- IC REG LINEAR 5V 200MA 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,495
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NCV4263-2CD250R2G from onsemi is a 5 V, 200 mA automotive-grade LDO regulator with integrated enable, reset, and watchdog functions-designed for microprocessor power supply and supervision in body control modules and instrument clusters. It delivers ±2% output voltage accuracy, supports input voltages up to 40 V, features 300 mV typical dropout at 150 mA, and provides AEC-Q100 Grade 1 qualification.
For engineers reviewing the NCV4263-2CD250R2G datasheet, pinout, applications, or equivalent options, this page details its validated SOIC-14 package configuration, reset threshold adjustability (70–93% of VOUT), watchdog timing control via external capacitor, thermal shutdown at 177°C, and reverse output current protection-key selection criteria for automotive embedded power management.
Technical Context
The NCV4263-2CD250R2G integrates a precision voltage reference, reset generator with adjustable threshold (via RADJ pin), and edge-triggered watchdog circuitry synchronized to an internal delay timing capacitor (D pin). Its enable logic disables regulation to reduce quiescent current to ≤10 µA, while internal current limiting (200–500 mA) and thermal shutdown (177°C typical) ensure robust fault handling.
This device operates across −40°C to +150°C junction temperature and supports wide-input operation (5.5–40 V), making it suitable for 12 V/24 V automotive systems subject to load dump and cold-crank transients. The open-collector RESET output includes a 30 kΩ internal pull-up and maintains integrity down to VOUT = 1.0 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0 V ±2% - tightly regulated rail for MCU core/peripheral supply with minimal calibration overhead. |
| Max Output Current | 200 mA - sufficient for low-power microcontrollers and sensor interfaces in body electronics. |
| Dropout Voltage | 300 mV typ. at 150 mA - enables stable 5 V output even during cold-crank (≥6 V input). |
| Input Voltage Range | 5.5 V to 40 V - accommodates automotive battery transients including ISO 7637-2 pulse 5a (load dump). |
| Reset Threshold | Adjustable 70–93% of VOUT - configurable brown-out detection via external resistor divider on RADJ pin. |
| Watchdog Timeout | 20.8 ms typ. (CD = 100 nF) - programmable failure detection window for MCU firmware hang monitoring. |
| Quiescent Current | 0.275 mA typ. (enabled), ≤10 µA (disabled) - enables ultra-low-power sleep modes in always-on ECUs. |
| Thermal Shutdown | 177°C typical - protects against sustained overload or poor PCB thermal design without latch-up. |
Pinout & Package
NCV4263-2CD250R2G is packaged in SOIC-14 (Case 751A), with exposed pad not present. Pin 1 is located at the top-left corner (notch or dot side), and all ground pins (pins 3, 4, 5, 10, 11, 12) must be connected to PCB GND plane for thermal and electrical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Vin (Pin 13) | Positive power input | Accepts 5.5–40 V; requires ≥100 nF ceramic decoupling close to pin for transient immunity. |
| EN (Pin 14) | Enable control input | Active-high logic; pulls regulator into ultra-low-IQ state (<10 µA) when driven low. |
| RO (Pin 1) | Open-collector reset output | Drives low on undervoltage or watchdog timeout; internal 30 kΩ pull-up to VOUT. |
| GND (Pins 3,4,5,10,11,12) | Power and signal ground | Multiple pins for low-impedance return path; must connect to thermal pad area on PCB. |
| D (Pin 5) | Delay timing capacitor node | Current-source output charging external capacitor to set reset delay (tRD) and watchdog timeout (tWTT). |
| RADJ (Pin 6) | Reset threshold adjust input | Connects to voltage divider to scale reset threshold from 70% to 93% of VOUT. |
| WDI (Pin 7) | Watchdog input | Rising-edge triggered; requires periodic pulses (e.g., every 20 ms) to prevent reset assertion. |
| Vout (Pin 8) | Regulated 5 V output | Requires ≥22 µF output capacitor with ESR in stable region per Figure 13 (datasheet). |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for −40°C to +125°C ambient operation-meets automotive reliability and stress test requirements. |
| Adjustable reset threshold | Configurable brown-out point (70–93% of VOUT) via external resistor divider on RADJ pin-enables system-specific voltage margining. |
| Programmable watchdog timeout | Set via single external capacitor on D pin-eliminates need for external timer IC or MCU GPIO resources. |
| Reverse output current protection | Prevents backfeed from VOUT to Vin during input short or battery disconnect-enhances system safety in multi-rail architectures. |
| Thermal shutdown with auto-recovery | Shuts down at ~177°C and resumes regulation after cooldown-avoids permanent latch-off during transient overloads. |
| Pb-free SOIC-14 package | RoHS-compliant, halogen-free construction with MSL Level 1 rating-supports lead-free reflow without moisture sensitivity concerns. |
Applications
| Body Control Module | Instruments and Clusters |
|---|---|
Use Scenario: Powering MCU, CAN transceiver, and LED drivers in door module or central body controller. IC Role / Device Role / Timing Role: Primary 5 V LDO with integrated reset supervision and watchdog for firmware health monitoring. Use Value: Eliminates discrete reset IC and reduces BOM count; adjustable reset threshold accommodates varying sensor supply tolerances. |
Use Scenario: Supplying digital display controller and analog gauges in dashboard cluster with cold-crank resilience. IC Role / Device Role / Timing Role: Regulator and power-good supervisor ensuring clean boot sequence and runtime fault detection. Use Value: 300 mV dropout enables operation down to 5.5 V input-critical during engine start when battery dips below 6 V. |
| Occupant Protection Systems | Powertrain Control Units |
Use Scenario: Providing regulated 5 V to airbag diagnostic MCU and accelerometer interface circuits. IC Role / Device Role / Timing Role: Safety-critical power supervisor with guaranteed reset assertion on undervoltage or software lockup. Use Value: Watchdog timeout programmability allows alignment with ASIL-B diagnostic timing requirements without custom firmware timers. |
Use Scenario: Supporting non-safety-critical sub-functions (e.g., HVAC control, fuel pump driver logic) in engine ECU. IC Role / Device Role / Timing Role: Secondary LDO with enable control for subsystem power gating during sleep mode. Use Value: ≤10 µA disable current minimizes parasitic drain-extending battery life in parked vehicle scenarios. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator with reset/watchdog applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV4263-2CPD50R2G | Same die, SOIC-8 EP package with exposed thermal pad; RθJA = 65.1°C/W vs. 94.8°C/W for SOIC-14. | Better thermal performance in space-constrained layouts; requires different footprint and soldering profile. | Select when PCB thermal relief is limited and >1.3 W dissipation is expected at 25°C ambient. |
| TLV70750PDQNR | 5 V, 300 mA LDO only-no reset, watchdog, or enable; ±1% accuracy; max 6 V input. | Lacks supervision functions; unsuitable for automotive MCU reset sequencing or fail-safe monitoring. | Use only in non-automotive, low-voltage, cost-sensitive applications where supervision is handled externally. |
Compared with NCV4263-2CD250R2G, the SOIC-8 EP variant offers superior thermal resistance but requires layout revision, while TLV70750PDQNR omits critical automotive supervision features-making NCV4263-2CD250R2G the sole choice for AEC-Q100-compliant reset-integrated power management.
Availability
NCV4263-2CD250R2G is available at Aetrix Electronics and suitable for body control modules, instrument clusters, occupant protection systems, and powertrain subsystems requiring stable component supply under automotive qualification and long-term lifecycle support.
Supply support for NCV4263-2CD250R2G 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, sensor, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.
The NCV4263-2C product line is engineered specifically for automotive microprocessor power and supervision-delivering integrated reset, watchdog, and enable functionality in a single AEC-Q100 qualified package for enhanced system reliability and reduced board space.
FAQ
What is the maximum input voltage rating for the NCV4263-2CD250R2G?
The NCV4263-2CD250R2G has an absolute maximum input voltage rating of 45 V, with recommended operating range from 5.5 V to 40 V. This allows robust operation during automotive load dump events (ISO 7637-2 Pulse 5a) and cold-crank conditions down to 5.5 V input while maintaining 5 V output regulation.
How is the reset threshold adjusted on the NCV4263-2CD250R2G?
The reset threshold of the NCV4263-2CD250R2G is adjusted using the RADJ pin (Pin 6) connected to a resistor divider between VOUT and GND. With VRADJ = 0 V, reset triggers at 93% of VOUT; connecting RADJ to a voltage divider scales the threshold down to as low as 70% of VOUT, per Equation 2 in the datasheet.
Does the NCV4263-2CD250R2G support watchdog functionality, and how is it configured?
Yes, the NCV4263-2CD250R2G includes a rising-edge-triggered watchdog input (WDI, Pin 7). A missing pulse within the watchdog timeout period-set by the capacitor on the D pin-causes RO to assert low. The default timeout is 20.8 ms (with 100 nF), scalable via Equation 4 in the datasheet.
What package type is used for the NCV4263-2CD250R2G, and what are its thermal characteristics?
The NCV4263-2CD250R2G uses the SOIC-14 (Case 751A) package with no exposed pad. Its thermal resistance is RθJA = 94.8°C/W on a 1 oz copper FR4 board (645 mm²), enabling up to 1.3 W max power dissipation at 25°C ambient before reaching the 150°C junction limit.
Is the NCV4263-2CD250R2G qualified for automotive applications, and what standards does it meet?
Yes, the NCV4263-2CD250R2G is AEC-Q100 Grade 1 qualified (−40°C to +125°C ambient), PPAP-capable, and Pb-free. It meets automotive reliability requirements including ESD HBM (2 kV), CDM (1 kV), and thermal cycling, making it suitable for body, chassis, and powertrain ECUs.
NCV4263-2CD250R2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 150mA
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 1.3 mA
- Current - Supply (Max):
- 23 mA
- PSRR:
- 80dB (100Hz)
- Control Features:
- Enable, Reset, Watchdog
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
NCV4263-2CD250R2G FAQ
1.How can I place an order for NCV4263-2CD250R2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV4263-2CD250R2G 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 NCV4263-2CD250R2G reliable?
The price and inventory of NCV4263-2CD250R2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV4263-2CD250R2G is usually 5 days.
3.What payment methods are accepted for NCV4263-2CD250R2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV4263-2CD250R2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV4263-2CD250R2G?
NCV4263-2CD250R2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV4263-2CD250R2G 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 NCV4263-2CD250R2G?
For technical support, including NCV4263-2CD250R2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV4263-2CD250R2G requirements.
6.How does Aetrix verify that NCV4263-2CD250R2G is sourced from the original manufacturer or authorized distributors?
All NCV4263-2CD250R2G 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 NCV4263-2CD250R2G meets industry standards.
7.What is the process for return or replacement of NCV4263-2CD250R2G?
All NCV4263-2CD250R2G units undergo pre-shipment inspection (PSI). If there is an issue with NCV4263-2CD250R2G, 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 NCV4263-2CD250R2G part is unused and in its original packaging.
Return procedure for NCV4263-2CD250R2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NCV4263-2CD250R2G Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
