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onsemi NCP630GD2TR4G
- Part No.:
- NCP630GD2TR4G
- Manufacturer:
- onsemi
- Package:
- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
- Datasheet:
-
NCP630GD2TR4G.pdf
- Description:
- IC REG LINEAR 3.47V 3A D2PAK-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,179
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Product details
Overview
NCP630GD2TR4G from onsemi is a fixed-output, low-dropout linear voltage regulator delivering 3.0 A output current with 3.47 V nominal output and 1.25 V maximum dropout at full load over −40°C to 125°C junction temperature. It features TTL-compatible shutdown control, ±1.5% output voltage accuracy, thermal shutdown, and current limiting - designed for microprocessor and DSP power supplies where stable, low-noise local regulation is required.
For engineers reviewing the NCP630GD2TR4G datasheet, pinout, applications, or equivalent options, key selection criteria include guaranteed 3.0 A continuous output, D2PAK thermal performance with exposed tab, sense-pin remote load regulation capability, and Pb-free tape-and-reel packaging for automated SMT assembly.
Technical Context
The NCP630GD2TR4G implements a high-current LDO architecture with internal reference trimming and dedicated SENSE pin for remote voltage sensing - enabling accurate regulation at the load despite PCB trace IR drop. Its fast 25 µs turn-on delay supports dynamic load steps typical in digital core supplies.
Thermal protection activates at 165°C with automatic recovery, and current limiting provides 5.0 A typical short-circuit protection while guaranteeing ≥3.0 A output under all operating conditions. Shutdown logic accepts 0.8 V (low) and 2.0 V (high) thresholds with sub-50 µA quiescent input current in shutdown mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.47 V ±1.5% (guaranteed across −40°C to 125°C TJ, enables precise core rail generation) |
| Max Output Current | 3.0 A continuous (supports high-current SoC/DSP cores without external pass devices) |
| Dropout Voltage | 1.25 V max at 3.0 A (allows operation from 4.72 V input when regulating 3.47 V, minimizing power loss) |
| Shutdown Threshold | 0.8 V (low), 2.0 V (high) - TTL-compatible interface simplifies direct connection to FPGA/ASIC GPIO |
| Ripple Rejection | 85 dB at 1 kHz (effectively suppresses switching noise from upstream SMPS in post-regulation applications) |
| Output Noise | 210 µVrms (20 Hz–100 kHz) - low-noise performance suitable for analog-sensitive loads like ADCs or PLLs |
| Junction Temp Range | −40°C to 125°C - qualified for industrial and extended-temperature embedded systems |
Pinout & Package
Package: D2PAK (Case 936A), surface-mount, thermally enhanced with exposed metal tab (connected to Pin 3 and Tab - both Ground). Pb-free, RoHS-compliant, 800-unit tape-and-reel format (TR4G).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - Shutdown | Digital enable/disable input | TTL-compatible control: <0.8 V = shutdown (µA quiescent), >2.0 V = active; open-drain compatible when pulled high |
| 2 - Vin | Input power supply | Accepts 5.0–7.0 V input; max rating 12 V; requires 68 µF input capacitor with ≤5 Ω ESR for stability |
| 3 & Tab - Ground | Power return path | Common ground for input, output, and thermal tab; tab must be soldered to large copper pour for thermal management |
| 4 - Vout | Regulated output | Delivers 3.47 V at up to 3.0 A; requires 33 µF output capacitor with ≤2 Ω ESR; remote sensing not used in this fixed version |
| 5 - Sense | Remote voltage feedback | Connected directly to load point to compensate for PCB trace drop; improves load regulation accuracy beyond standard Vout pin |
Key Features
| Feature | Design Value |
|---|---|
| 3.0 A guaranteed output current | Enables single-regulator solution for high-power digital ICs without paralleling or external pass transistors |
| 1.25 V dropout at 3.0 A | Minimizes power dissipation and heat generation compared to higher-dropout regulators under full load |
| SENSE pin for remote load regulation | Compensates for voltage drop across PCB traces, maintaining ±1.5% accuracy at point-of-load |
| Thermal shutdown at 165°C | Self-protecting behavior prevents catastrophic failure during overload or insufficient heatsinking |
| Pb-free D2PAK package | Complies with RoHS Directive 2011/65/EU; compatible with lead-free reflow profiles (peak 260°C, 10 s) |
Applications
| Microprocessor Core Supply | DSP Power Rail |
|---|---|
|
Use Scenario: Providing clean, tightly regulated 3.47 V to ARM Cortex-A series or RISC-V SoCs with burst current demands up to 3.0 A. IC Role / Device Role / Timing Role: Primary local LDO post-regulator delivering stable core voltage independent of upstream SMPS ripple. Use Value: 85 dB ripple rejection and 210 µVrms noise ensure minimal clock jitter and ADC SNR degradation in mixed-signal SoCs. |
Use Scenario: Powering TI C6000 or Analog Devices SHARC DSPs requiring low-noise, high-current 3.47 V I/O or core rails. IC Role / Device Role / Timing Role: Fixed-output LDO with SENSE pin compensating for long trace drops between regulator and DSP power pins. Use Value: Remote sensing maintains ±1.5% output accuracy at DSP VDD pins, preventing brownout during 3.0 A transient loads. |
| SMPS Post-Regulation | Battery Charger Reference |
|
Use Scenario: Final-stage regulation after a 5 V buck converter supplying FPGA I/O banks or memory interfaces. IC Role / Device Role / Timing Role: Low-dropout buffer improving transient response and reducing residual switching noise from primary SMPS. Use Value: 25 µs turn-on delay enables rapid recovery from deep sleep states; 1.25 V dropout allows efficient operation from 4.72 V intermediate rail. |
Use Scenario: Generating precise 3.47 V reference for lithium-ion battery charge controller ICs (e.g., BQ24xxx family). IC Role / Device Role / Timing Role: Stable voltage source for charger IC feedback networks and ADC references in portable charging systems. Use Value: ±1.5% initial accuracy and <0.06% load regulation ensure consistent charge termination voltage across 10 mA–3.0 A load range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV1117-33CDCYR | 3.3 V fixed output, 800 mA max, SOT-223 package, no SENSE pin, higher dropout (1.2 V @ 800 mA) | Limited to lower-current applications; lacks remote sensing and thermal robustness for 3 A loads | Select only for space-constrained, sub-1 A designs where cost outweighs performance and thermal requirements |
| TPS7A8300RGRT | 3.3 V adjustable/fixed, 2 A max, 200 mV dropout @ 2 A, WQFN-20, integrated soft-start, no SENSE pin | Higher efficiency but lower current capacity; unsuitable for >2 A loads or remote sensing needs | Prefer for compact, low-dropout designs with moderate current; avoid when 3.0 A continuous or SENSE functionality is mandatory |
Compared with TLV1117-33CDCYR and TPS7A8300RGRT, the NCP630GD2TR4G uniquely delivers 3.0 A continuous current in D2PAK with SENSE pin support and industrial temperature range - making it the only option among the three qualified for high-power, remote-sensed, thermally demanding applications.
Availability
NCP630GD2TR4G is available at Aetrix Electronics and suitable for microprocessor power supplies, DSP power rails, and SMPS post-regulation applications requiring stable component supply, Pb-free compliance, and industrial temperature operation.
Supply support for NCP630GD2TR4G 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, cloud, medical, and IoT markets.
The NCP630GD2TR4G belongs to onsemi's high-current linear regulator product line, engineered specifically for post-regulation of digital ICs where low noise, fast transient response, and remote load accuracy are critical.
FAQ
What is the output voltage tolerance of the NCP630GD2TR4G across temperature?
The NCP630GD2TR4G guarantees 3.47 V output with ±1.5% accuracy over the full −40°C to 125°C junction temperature range. This is achieved via on-chip trimming and verified in production test across temperature extremes, ensuring stable core voltage for sensitive digital loads without external calibration.
Does the NCP630GD2TR4G require an external resistor network for output setting?
No - the NCP630GD2TR4G is a fixed-output variant with internal resistor network set to 3.47 V. Unlike the adjustable NCP630AD2TR4G, it does not use the ADJ pin; instead, Pin 5 functions as SENSE for remote load regulation. No external resistors are needed for voltage programming.
How does the SENSE pin improve regulation accuracy in the NCP630GD2TR4G?
The SENSE pin on the NCP630GD2TR4G connects directly to the load's power input, allowing the regulator to monitor voltage at the point-of-load rather than at its own Vout pin. This compensates for IR drop across PCB traces, maintaining ±1.5% output accuracy at the load even with trace resistances up to several tens of milliohms.
What thermal design considerations apply to the NCP630GD2TR4G in D2PAK package?
The NCP630GD2TR4G's D2PAK package features an exposed metal tab tied to ground - it must be soldered to ≥1000 mm² of 2 oz copper for effective heat dissipation. With proper layout, thermal resistance can reach ~5.0°C/W junction-to-case, enabling 3.0 A operation at ambient temperatures up to 50°C without additional heatsinking.
Is the NCP630GD2TR4G compatible with lead-free reflow processes?
Yes - the "G" suffix in NCP630GD2TR4G denotes Pb-free construction, qualified for standard lead-free reflow profiles with peak temperature of 260°C for 10 seconds. The D2PAK package meets JEDEC J-STD-020 moisture sensitivity level 3 and requires no pre-bake when stored per MSL handling guidelines.
NCP630GD2TR4G 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:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 12V
- Voltage - Output (Min/Fixed):
- 3.47V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.25V @ 3A
- Current - Output:
- 3A
- Current - Quiescent (Iq):
- 1 mA
- Current - Supply (Max):
- 2 mA
- PSRR:
- 85dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- 0°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK-5
NCP630GD2TR4G FAQ
1.How can I place an order for NCP630GD2TR4G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP630GD2TR4G 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 NCP630GD2TR4G reliable?
The price and inventory of NCP630GD2TR4G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP630GD2TR4G is usually 5 days.
3.What payment methods are accepted for NCP630GD2TR4G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP630GD2TR4G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP630GD2TR4G?
NCP630GD2TR4G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP630GD2TR4G 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 NCP630GD2TR4G?
For technical support, including NCP630GD2TR4G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP630GD2TR4G requirements.
6.How does Aetrix verify that NCP630GD2TR4G is sourced from the original manufacturer or authorized distributors?
All NCP630GD2TR4G 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 NCP630GD2TR4G meets industry standards.
7.What is the process for return or replacement of NCP630GD2TR4G?
All NCP630GD2TR4G units undergo pre-shipment inspection (PSI). If there is an issue with NCP630GD2TR4G, 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 NCP630GD2TR4G part is unused and in its original packaging.
Return procedure for NCP630GD2TR4G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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