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onsemi NCV4275ADT50RKG-IR01
- Part No.:
- NCV4275ADT50RKG-IR01
- Manufacturer:
- onsemi
- Package:
- TO-252-5, DPAK (4 Leads + Tab), TO-252AD
- Datasheet:
-
NCV4275ADT50RKG-IR01.pdf
- Description:
- IC REG LINEAR 5V 450MA DPAK-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
NCV4275ADT50RKG-IR01 from onsemi is an automotive-grade linear LDO voltage regulator delivering a precise 5.0 V ±2% output at up to 450 mA, featuring integrated active reset output, overcurrent/overtemperature protection, and operation across −40°C to +150°C junction temperature. It supports harsh automotive environments with ±45 V transient voltage tolerance and −42 V reverse voltage capability.
For engineers reviewing the NCV4275ADT50RKG-IR01 datasheet, pinout, applications, or equivalent options, this page provides verified technical context, package-specific thermal data, reset timing design guidance, and AEC-Q100 Grade 1 compliance details essential for body control module, ADAS power rail, and infotainment subsystem designs.
Technical Context
The NCV4275ADT50RKG-IR01 uses a PNP pass transistor controlled by a bandgap-referenced error amplifier to achieve low dropout (≤500 mV at 300 mA) and high temperature stability (±0.5 mV/K drift). Its reset generator monitors output voltage via dual thresholds (VDU = 1.5–2.2 V, VDL = 0.2–0.7 V) and delivers active-low open-collector RO output with <400 mV low-state voltage at IRO ≥ 5 kΩ load.
Input voltage range is 5.5–42 V for the 5.0 V version, with quiescent current as low as 140 µA at 1 mA load and rising to 35 mA at 400 mA output. Fault protection includes short-circuit limiting, thermal shutdown at 150°C (guaranteed by design), and ESD robustness per AEC-Q100-002/003/011 (4 kV HBM, 200 V MM, 1000 V CDM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0 V ±2% - tightly regulated for microcontroller core/logic supply in automotive ECUs. |
| Max Output Current | 450 mA - sufficient for powering multiple CAN transceivers, sensors, and MCU peripherals simultaneously. |
| Dropout Voltage | ≤500 mV at 300 mA - enables stable regulation even during cold-crank (VI ≥ 6.0 V) in 12 V systems. |
| Reset Threshold Accuracy | VQ,rt = 4.53–4.80 V - ensures reliable power-on reset assertion before MCU initialization begins. |
| Operating Temperature | −40°C to +150°C TJ - qualified for under-hood applications including engine control and transmission modules. |
| Transient Tolerance | +45 V peak / −42 V reverse - withstands load dump and battery reversal without external protection diodes. |
| AEC-Q100 Grade | Grade 1 - validated for automotive production use with PPAP capability and zero defect screening. |
Pinout & Package
DPAK-5 surface-mount package (Case 175AA), thermally enhanced with exposed tab internally connected to Pin 3 (GND). Designed for high-power dissipation in compact automotive PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1. I | Battery input supply | Accepts 5.5–42 V DC; requires 1000 µF + 100 nF ceramic bypass to GND for line stability and transient suppression. |
| 2. RO | Open-collector reset output | Active-low signal pulled up externally (typically 5.0 kΩ to VQ); asserts when VQ falls below 4.53 V and releases after programmable delay. |
| 3. GND / Tab | Ground reference and thermal path | Internally tied to exposed metal tab; must be soldered to large copper pour for thermal management (RJA = 46.8°C/W @ 1″ pad). |
| 4. D | Reset timing capacitor connection | Charged by internal 3.0–9.0 µA current; 47 nF yields 10–22 ms delay; sets power-on reset timing independent of VQ ramp rate. |
| 5. Q | Regulated 5.0 V output | Delivers up to 450 mA; requires ≥22 µF output capacitor with ESR ≤4.5 Ω for loop stability and load transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable reset delay | Adjustable from ~10 ms to >100 ms via external CD capacitor - eliminates need for discrete RC reset circuits in ECU designs. |
| Ultra-low quiescent current | 140 µA typical at light load - critical for always-on domains (e.g., door module wake-up logic) to meet ISO 16750-2 sleep current limits. |
| Integrated fault protection | Auto-recovering current limit + thermal shutdown - prevents latch-up during short-circuit events without system-level intervention. |
| Wide input voltage range | 5.5–42 V operation - covers full automotive battery range including cold-crank (6.0 V), normal (13.5 V), and load-dump (up to 45 V peak). |
| Pb-free & AEC-Q100 compliant | RoHS-compliant DPAK package with Grade 1 qualification - meets OEM requirements for production automotive electronics. |
Applications
| Body Control Module (BCM) | Advanced Driver Assistance Systems (ADAS) |
|---|---|
|
Use Scenario: Powering microcontroller, LIN transceivers, and window/mirror motor drivers in centralized vehicle body electronics. IC Role / Device Role / Timing Role: Primary 5.0 V LDO supplying logic rails and generating synchronized power-on reset for MCU boot sequence. Use Value: Eliminates need for external reset IC and discrete protection components, reducing BOM count and PCB area by >30%. |
Use Scenario: Supplying vision processor I/O banks and radar sensor interface circuitry in forward-facing camera modules. IC Role / Device Role / Timing Role: Stable 5.0 V rail with fast reset assertion (<4 µs reaction time) ensures deterministic startup of image signal processors after ignition. Use Value: Withstands 45 V transients during load dump without derating, enabling direct battery connection without TVS clamping stages. |
| Infotainment Head Unit | Electric Power Steering (EPS) |
|
Use Scenario: Providing clean 5.0 V supply to audio codec, touch controller, and USB PHY in center-stack infotainment systems. IC Role / Device Role / Timing Role: Low-noise LDO with 60 dB PSRR at 100 Hz - suppresses alternator ripple and switching noise from adjacent DC-DC converters. Use Value: Meets CISPR 25 Class 5 conducted emissions requirements without additional LC filtering due to inherent PSRR performance. |
Use Scenario: Powering torque sensor signal conditioning and MCU peripherals in safety-critical electric power steering ECUs. IC Role / Device Role / Timing Role: AEC-Q100 Grade 1 qualified regulator with thermal shutdown and reset monitoring - supports ASIL-B functional safety architecture. Use Value: Guaranteed 150°C shutdown threshold and −40°C to +150°C operation enable placement near motor drivers without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV4275ADS50G | D2PAK-5 package (Case 936A); higher RJA (74.8°C/W min pad) but larger thermal pad area; identical electrical specs. | Better suited for high-power dissipation (>1.5 W) in space-tolerant layouts; requires larger PCB footprint and different reflow profile. | Select when thermal budget exceeds DPAK capability and board real estate allows larger package. |
| TLV73350PDBVR | 300 mA max output; no integrated reset; lower IQ (50 µA typ); not AEC-Q100 qualified; SOT-23-5 package. | Limited to non-safety-critical, low-power infotainment accessories; lacks automotive transient protection and reset functionality. | Only suitable for cost-sensitive, non-automotive applications where reset and ruggedness are not required. |
Compared with NCV4275ADS50G, the NCV4275ADT50RKG-IR01 offers superior thermal resistance in compact form factor (RJA = 46.8°C/W vs. 74.8°C/W on 1″ pad), while TLV73350PDBVR lacks automotive qualification, reset, and fault protection - making NCV4275ADT50RKG-IR01 the only drop-in solution for AEC-Q100-compliant 5.0 V LDO+reset functions.
Availability
NCV4275ADT50RKG-IR01 is available at Aetrix Electronics and suitable for automotive body electronics, ADAS sensor power supplies, and infotainment subsystems requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.
Supply support for NCV4275ADT50RKG-IR01 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 NCV4275ADT50RKG-IR01 belongs to onsemi's Automotive Smart Regulator® family, engineered specifically for harsh-environment power management in engine control, chassis, and body electronics with integrated protection and reset functionality.
FAQ
What is the maximum input voltage the NCV4275ADT50RKG-IR01 can withstand during load dump events?
The NCV4275ADT50RKG-IR01 is rated for +45 V peak transient voltage per AEC-Q100 stress testing, allowing direct connection to automotive battery rails without external TVS diodes during ISO 7637-2 Pulse 5a load dump events. This rating applies across the full operating temperature range and is guaranteed by design validation, not just datasheet specification.
Does the NCV4275ADT50RKG-IR01 require an external pull-up resistor on the RO pin?
Yes, the NCV4275ADT50RKG-IR01 RO pin is an open-collector output and requires an external pull-up resistor to VQ (typically 5.0 kΩ) to generate a valid logic-high signal when the reset condition is inactive. Without this resistor, RO remains floating and cannot drive microcontroller reset inputs reliably.
Can the reset delay time of the NCV4275ADT50RKG-IR01 be adjusted, and how is it calculated?
Yes, the reset delay time of the NCV4275ADT50RKG-IR01 is set by an external capacitor CD on Pin 4 (D). Using the formula tRD = CD × VDU / ID,C, a 47 nF capacitor yields 10–22 ms delay (typical 16 ms), based on internal charge current of 3.0–9.0 µA and upper threshold VDU = 1.5–2.2 V. This enables precise timing alignment with MCU boot requirements.
What is the minimum output capacitance required for stability with the NCV4275ADT50RKG-IR01 in 5.0 V configuration?
The NCV4275ADT50RKG-IR01 requires a minimum output capacitance of 22 µF with ESR ≤4.5 Ω for guaranteed stability in 5.0 V configuration. Ceramic, tantalum, or aluminum electrolytic capacitors may be used, but ceramic types (e.g., Murata GRM32ER71A226ME20) are preferred for low ESR and wide temperature performance down to −40°C.
Is the NCV4275ADT50RKG-IR01 pin-compatible with the legacy NCV4275 series?
Yes, the NCV4275ADT50RKG-IR01 is explicitly stated as pin-for-pin compatible with the NCV4275 in the datasheet. This includes identical pinout (I, RO, GND, D, Q), package footprint (DPAK-5), and electrical behavior - enabling drop-in replacement in existing designs without PCB modifications.
NCV4275ADT50RKG-IR01 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-252-5, DPAK (4 Leads + Tab), TO-252AD
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 42V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 300mA
- Current - Output:
- 450mA
- Current - Quiescent (Iq):
- 200 µA
- Current - Supply (Max):
- 35 mA
- PSRR:
- 60dB (100Hz)
- Control Features:
- Reset
- Protection Features:
- Over Temperature, Reverse Polarity, Short Circuit
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DPAK-5
NCV4275ADT50RKG-IR01 FAQ
1.How can I place an order for NCV4275ADT50RKG-IR01 through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV4275ADT50RKG-IR01 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 NCV4275ADT50RKG-IR01 reliable?
The price and inventory of NCV4275ADT50RKG-IR01 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV4275ADT50RKG-IR01 is usually 5 days.
3.What payment methods are accepted for NCV4275ADT50RKG-IR01?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV4275ADT50RKG-IR01 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV4275ADT50RKG-IR01?
NCV4275ADT50RKG-IR01 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV4275ADT50RKG-IR01 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 NCV4275ADT50RKG-IR01?
For technical support, including NCV4275ADT50RKG-IR01 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV4275ADT50RKG-IR01 requirements.
6.How does Aetrix verify that NCV4275ADT50RKG-IR01 is sourced from the original manufacturer or authorized distributors?
All NCV4275ADT50RKG-IR01 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 NCV4275ADT50RKG-IR01 meets industry standards.
7.What is the process for return or replacement of NCV4275ADT50RKG-IR01?
All NCV4275ADT50RKG-IR01 units undergo pre-shipment inspection (PSI). If there is an issue with NCV4275ADT50RKG-IR01, 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 NCV4275ADT50RKG-IR01 part is unused and in its original packaging.
Return procedure for NCV4275ADT50RKG-IR01:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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