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onsemi NCV5663DSADJR4G
- Part No.:
- NCV5663DSADJR4G
- Manufacturer:
- onsemi
- Package:
- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
- Datasheet:
-
NCV5663DSADJR4G.pdf
- Description:
- IC REG LINEAR POS ADJ 3A D2PAK-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,797
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Product details
Overview
NCV5663DSADJR4G from onsemi is an automotive-grade, adjustable-output, ultra-fast transient response low-dropout linear regulator delivering up to 3.0 A output current with 0.9 V reference voltage, 1.0 V typical dropout at 3.0 A, and 28 µVrms output noise-designed for post-regulation in high-power ASIC and server power supplies.
For engineers reviewing the NCV5663DSADJR4G datasheet, pinout, applications, or equivalent options, this page delivers verified technical context, validated pin functions, real-world application constraints, and confirmed alternative options for automotive and industrial LDO selection.
Technical Context
The NCV5663DSADJR4G implements a bipolar-based LDO architecture with a precision 0.9 V internal reference, enabling stable regulation down to sub-1 V outputs. Its ultra-fast load transient response (settling within 1–3 µs) is achieved via high-gain error amplifier and optimized internal compensation, independent of external bypass capacitors.
Thermal protection triggers at 160°C junction temperature, and current limiting clamps peak output at 4.5 A while maintaining safe power dissipation in the D2PAK package. Ground current remains constant at ≤3.0 mA across full 10 mA–3.0 A load range-critical for efficiency in variable-load systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 3.0 A continuous-supports high-current ASIC core rails without derating at TJ ≤ 125°C. |
| Dropout Voltage | 1.0 V typical at 3.0 A-enables operation with minimal Vin–Vout margin, e.g., 3.3 V input → 2.5 V output. |
| Output Noise | 28 µVrms-measured without bypass capacitor; eliminates need for extra ceramic decoupling in space-constrained designs. |
| Ground Current | ≤3.0 mA max, load-independent-ensures predictable quiescent power across full output current range. |
| PSRR | >65 dB at 1 kHz-rejects switching noise from upstream DC/DC converters in multi-rail power architectures. |
| Enable Threshold | VEN(HI) = 1.3 V min, VEN(LO) = 0.3 V max-compatible with standard 3.3 V or 5 V logic control signals. |
| Junction Temp Range | −40°C to +150°C-AEC-Q100 qualified for under-hood automotive applications and industrial edge computing. |
Pinout & Package
D2PAK (TO-263-5) thermally enhanced surface-mount package with exposed tab connected to ground-enables direct PCB copper pour thermal coupling for >45°C/W junction-to-air dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Enable | Active-high digital control input; tie to Vin for always-on operation or drive with MCU GPIO for sequencing. |
| 2 | Vin | Main input supply pin; requires ≥150 µF input capacitance with ≤50 mΩ ESR for stability and transient immunity. |
| 3 | Ground | Power ground reference; tab is electrically connected-must be soldered to large copper area for thermal performance. |
| 4 | Vout | Regulated output; stable with 10–150 µF output capacitance and 50–300 mΩ ESR ceramic or polymer capacitors. |
| 5 | Adj | Adjustable feedback node; connects to resistor divider (R1/R2) to set output voltage per VOUT = 0.9 V × (1 + R1/R2). |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast transient response | 1–3 µs settling time enables stable core voltage during sudden CPU/GPU load steps without external compensation. |
| Low-noise operation | 28 µVrms noise without bypass capacitor reduces BOM count and PCB area in noise-sensitive analog or RF subsystems. |
| Load-independent ground current | ≤3.0 mA over 10 mA–3.0 A load range simplifies power budgeting and improves light-load efficiency in always-on systems. |
| 0.9 V internal reference | Supports configurable outputs down to 0.9 V-ideal for modern low-voltage ASICs, FPGAs, and AI accelerators. |
| AEC-Q100 qualification | Qualified for automotive Grade 0 (−40°C to +150°C), PPAP-capable-meets functional safety requirements for ADAS and infotainment ECUs. |
Applications
| ASIC Core Power Supply | Automotive ADAS Domain Controller |
|---|---|
|
Use Scenario: Providing clean, low-noise 1.0 V or 1.2 V supply to high-performance ASICs in servers or AI inference modules. IC Role / Device Role / Timing Role: Primary post-regulator stepping down intermediate rail (e.g., 3.3 V) to precise core voltage with fast transient recovery. Use Value: 28 µVrms noise and 1–3 µs transient response prevent timing violations and logic errors during burst-mode compute workloads. |
Use Scenario: Powering vision processor SoCs in forward-facing camera modules operating in engine bay environments. IC Role / Device Role / Timing Role: Adjustable LDO delivering 1.8 V or 2.5 V to image signal processors with AEC-Q100-compliant thermal and electrical robustness. Use Value: −40°C to +150°C operation and 160°C thermal shutdown ensure reliability under hood temperature cycling and load transients. |
| Networking Equipment PoL | Gaming Console SoC Rail |
|
Use Scenario: Point-of-load regulation for FPGA I/O banks or SerDes receivers in 10G/25G switch line cards. IC Role / Device Role / Timing Role: Low-ESR-stable LDO rejecting ripple from upstream multiphase buck converters feeding high-speed serial interfaces. Use Value: >65 dB PSRR at 1 kHz suppresses switching noise that could degrade SERDES jitter and bit error rate. |
Use Scenario: Dynamic voltage scaling rail for GPU cores in next-gen gaming consoles requiring rapid load transitions. IC Role / Device Role / Timing Role: Enable-controlled LDO supporting power-state transitions (e.g., idle → boost) with sub-microsecond response. Use Value: Enable pin with 1.3 V logic threshold integrates seamlessly with console PMIC sequencers for synchronized rail activation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar adjustable-output, high-current LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCP5663DSADJR4G | Same die, commercial-grade version with −40°C to +125°C TJ, no AEC-Q100 qualification. | Suitable for non-automotive industrial or computing applications where extended temperature is not required. | Select when cost sensitivity outweighs automotive qualification needs and ambient temperature stays ≤125°C. |
| TPS7A8300RGRT | 3-A adjustable LDO with 20 µVrms noise, 0.8-V reference, but only 1.1 V dropout at 3 A and no integrated error flag. | Lacks automotive qualification and thermal shutdown at 160°C; rated for −40°C to +125°C only. | Choose if lower noise and tighter accuracy are prioritized over automotive compliance and higher thermal margin. |
Compared with NCP5663DSADJR4G and TPS7A8300RGRT, the NCV5663DSADJR4G uniquely combines AEC-Q100 Grade 0 qualification, 150°C junction rating, and 0.9 V reference in a single D2PAK package-making it the only option for automotive domain controllers requiring both extended temperature and sub-1 V configurability.
Availability
NCV5663DSADJR4G is available at Aetrix Electronics and suitable for automotive ADAS systems, server ASIC power supplies, and industrial networking equipment requiring stable component supply with long-term lifecycle support.
Supply support for NCV5663DSADJR4G 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 is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCV5663DSADJR4G belongs to onsemi's high-current LDO family engineered specifically for automotive and industrial systems demanding ultra-low noise, fast transient response, and AEC-Q100 reliability under extreme thermal stress.
FAQ
What is the minimum output voltage achievable with NCV5663DSADJR4G?
The NCV5663DSADJR4G uses a 0.9 V internal reference voltage and supports output voltages as low as 0.9 V when the ADJ pin is tied directly to Vout. For higher outputs, use the resistor divider formula VOUT = 0.9 V × (1 + R1/R2). The device maintains regulation and specified accuracy down to this minimum, verified across −40°C to +150°C junction temperature.
Does NCV5663DSADJR4G require an external bypass capacitor for low-noise operation?
No, the NCV5663DSADJR4G achieves 28 µVrms output noise without any external bypass capacitor-unlike most LDOs that require 10 nF–100 nF ceramic caps to meet noise specs. This eliminates a component, reduces PCB area, and avoids capacitor aging or microphonic effects in vibration-prone automotive environments.
How does the Enable function operate on NCV5663DSADJR4G?
The Enable pin on NCV5663DSADJR4G is active-high with a guaranteed turn-on threshold of ≥1.3 V and turn-off threshold of ≤0.3 V. When disabled, ground current drops to ≤300 µA. If unused, connect Enable directly to Vin for default-on operation-no pull-up resistor needed, unlike the Error Flag pin in fixed versions.
What thermal derating applies to NCV5663DSADJR4G at 150°C junction temperature?
The NCV5663DSADJR4G is rated for continuous operation up to +150°C junction temperature and includes thermal shutdown at 160°C. Derating is not required within this range, but power dissipation must stay below the limit defined by PD = (TJ(max) − TA) / RθJA. With RθJA = 45°C/W, maximum safe dissipation at 105°C ambient is ~1 W-requiring proper D2PAK heatsinking for 3 A loads at high Vin–Vout differentials.
Is NCV5663DSADJR4G pin-compatible with other devices in the NCP5663/NCV5663 family?
Yes, all NCP5663/NCV5663 variants-including NCP5663DSADJR4G, NCV5663DS15R4G, and NCV5663DS18R4G-share identical D2PAK-5 pinout and footprint. Pin 1 is Enable, Pin 2 is Vin, Pin 3 is Ground, Pin 4 is Vout, and Pin 5 serves as Adj (adjustable) or Error Flag (fixed). No PCB redesign is needed when migrating between versions.
NCV5663DSADJR4G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Adjustable
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 9V
- Voltage - Output (Min/Fixed):
- 0.9V
- Voltage - Output (Max):
- 7.7V
- Voltage Dropout (Max):
- 1.3V @ 3A
- Current - Output:
- 3A
- Current - Quiescent (Iq):
- 3 mA
- Current - Supply (Max):
- -
- PSRR:
- 70dB ~ 65dB (120Hz ~ 1kHz)
- 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:
- D2PAK-5
NCV5663DSADJR4G FAQ
1.How can I place an order for NCV5663DSADJR4G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV5663DSADJR4G 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 NCV5663DSADJR4G reliable?
The price and inventory of NCV5663DSADJR4G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV5663DSADJR4G is usually 5 days.
3.What payment methods are accepted for NCV5663DSADJR4G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV5663DSADJR4G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV5663DSADJR4G?
NCV5663DSADJR4G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV5663DSADJR4G 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 NCV5663DSADJR4G?
For technical support, including NCV5663DSADJR4G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV5663DSADJR4G requirements.
6.How does Aetrix verify that NCV5663DSADJR4G is sourced from the original manufacturer or authorized distributors?
All NCV5663DSADJR4G 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 NCV5663DSADJR4G meets industry standards.
7.What is the process for return or replacement of NCV5663DSADJR4G?
All NCV5663DSADJR4G units undergo pre-shipment inspection (PSI). If there is an issue with NCV5663DSADJR4G, 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 NCV5663DSADJR4G part is unused and in its original packaging.
Return procedure for NCV5663DSADJR4G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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