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NXP Semiconductors NX1117C20Z,115
- Part No.:
- NX1117C20Z,115
- Manufacturer:
- NXP Semiconductors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
NX1117C20Z,115.pdf
- Description:
- IC REG LINEAR 2V 1A SOT223
- Quantity:
- Payment:
- Shipping:
Inventory:1,338
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Product details
Overview
NX1117C20Z,115 from NXP Semiconductors is a fixed-output 2.0 V, ±1 % accuracy, low-dropout linear voltage regulator in SOT223 package, delivering up to 1 A output current with thermal shutdown, SOA control, and output current limiting. It operates from 3.4 V to 12 V input and supports industrial temperature range (−40 °C to +125 °C), commonly used as post-regulator for DC-DC converters in USB devices and hard drive controllers.
For engineers reviewing the NX1117C20Z,115 datasheet, NX1117C20Z,115 pinout, NX1117C20Z,115 application, or NX1117C20Z,115 equivalent, key selection criteria include dropout voltage at 800 mA (≤1.2 V), load regulation (≤6 mV), PSRR at 120 Hz (67 dB), quiescent current (5–6 mA), and thermal resistance (72 K/W on FR4 with 6 cm² pad).
Technical Context
The NX1117C20Z,115 implements internal bandgap reference (1.25 V) with precision error amplifier and SOA-controlled pass transistor to maintain safe power dissipation under high Vin–Vout differentials. Its architecture enforces current limiting before thermal shutdown activates, ensuring robust operation during transient overloads.
Unlike adjustable variants, this fixed 2.0 V version eliminates external resistor networks and simplifies layout while retaining full thermal and current protection. It requires no minimum load and supports stable operation with 680 nF input/output capacitors in series with 1 Ω ESR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | 2.000 V (±1 % accuracy over −40 °C to +125 °C; 1.96–2.04 V min/max) |
| Max output current | 1 A (guaranteed with thermal derating; limited by SOA and junction temperature) |
| Dropout voltage | 1.07 V typical at 800 mA (enables regulation with only 3.07 V input at full load) |
| Input voltage range | 3.4 V to 12 V (supports wide-input post-regulation after buck converters) |
| Quiescent current | 5–6 mA (low static consumption enables efficient standby operation) |
| PSRR @ 120 Hz | 67 dB (effective ripple suppression for switching converter noise) |
| Thermal resistance | 72 K/W (on FR4 PCB with 6 cm² copper pad; defines max power dissipation vs ambient) |
Pinout & Package
SOT223 (SC-73) plastic surface-mounted package with 4 leads and integrated heat sink pad; pin 1 is GND, pins 2 and 4 are VOUT (dual-source configuration), pin 3 is VIN.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference and thermal path; must be connected to large copper area for heat dissipation |
| 2 | VOUT | Main regulated output terminal; electrically tied to pin 4 for current sharing |
| 3 | VIN | Unregulated input supply; requires local 680 nF bypass capacitor near pin |
| 4 | VOUT | Secondary output terminal; parallel connection with pin 2 reduces trace resistance and improves current handling |
Key Features
| Feature | Design Value |
|---|---|
| ±1 % output accuracy | Ensures tight voltage tolerance for 2.0 V logic rails and analog subsystems without calibration |
| No minimum load requirement | Enables stable regulation down to 0 mA output-ideal for intermittent-load applications like USB suspend states |
| SOA control | Prevents thermal runaway by dynamically limiting output current when Vin–Vout exceeds safe limits |
| Thermal shutdown | Activates at 135 °C junction temperature and auto-recovers after cooldown-prevents permanent damage |
| 1 A continuous output | Supports high-current peripherals such as SSD controllers or multi-port USB hubs without external boost stages |
Applications
| Post Regulator for Switching DC-DC Converter | Battery Charger |
|---|---|
Use Scenario: Clean 2.0 V rail derived from noisy 5 V or 12 V buck converter output in embedded storage systems. IC Role / Device Role / Timing Role: Low-noise linear post-regulator providing stable 2.0 V supply to NAND flash I/O or controller core logic. Use Value: 67 dB PSRR suppresses switching ripple; 1.07 V dropout allows efficient operation even with marginal input headroom. | Use Scenario: Precision 2.0 V bias for charging IC reference or battery fuel gauge circuitry. IC Role / Device Role / Timing Role: Fixed-voltage reference source with ±1 % accuracy and <0.7 % temperature drift over −40 °C to +125 °C. Use Value: Eliminates need for trimming resistors; long-term stability of 0.3 % over 1000 h ensures consistent charge termination accuracy. |
| USB Devices | Hard Drive Controllers |
Use Scenario: Powering 2.0 V USB PHY or hub controller ICs requiring clean, regulated supply during plug-in/out transients. IC Role / Device Role / Timing Role: Load-transient-optimized LDO delivering fast response (<200 µs) to step-load changes per USB enumeration cycles. Use Value: Dual-VOUT pins reduce impedance; 1 mA–800 mA load regulation ≤6 mV maintains USB compliance margins. | Use Scenario: Supplying 2.0 V to SATA or PATA interface logic in consumer HDD enclosures with limited airflow. IC Role / Device Role / Timing Role: Thermally robust regulator operating continuously at 1 A with junction temperature monitored via SOA control. Use Value: 72 K/W thermal resistance on standard FR4 enables >1 W dissipation without heatsink; shutdown at 135 °C prevents thermal failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-dropout linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV1117-20CDCYR | ±2 % output accuracy; 800 mA max output; higher dropout (1.2 V @ 800 mA); same SOT223 package | Lower accuracy and current limit reduce suitability for precision 2.0 V logic rails | Select if cost sensitivity outweighs accuracy and current requirements |
| LD1117S20TR | ±2 % accuracy; 800 mA output; no SOA control; thermal shutdown only at 160 °C | Lacks SOA protection-risk of thermal runaway under high Vin–Vout conditions | Acceptable for low-differential applications where Vin stays near 3.3 V |
Compared with TLV1117-20CDCYR and LD1117S20TR, the NX1117C20Z,115 delivers tighter 1 % accuracy, higher 1 A current capability, and active SOA control-making it preferable for industrial-grade 2.0 V point-of-load regulation where reliability and precision are critical.
Availability
NX1117C20Z,115 is available at Aetrix Electronics and suitable for USB devices, hard drive controllers, and battery charger designs requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for NX1117C20Z,115 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The NX1117C/NX1117CE series was designed specifically for high-reliability post-regulation in power-constrained embedded systems, emphasizing thermal robustness, precision output, and seamless integration with switching DC-DC stages.
FAQ
What is the maximum input voltage rating for NX1117C20Z,115?
The absolute maximum input voltage for NX1117C20Z,115 is 20 V, but the recommended operating range is 3.4 V to 12 V. Exceeding 12 V may trigger SOA current limiting or thermal shutdown depending on load and ambient conditions. Always refer to Table 5 (Limiting Values) and Table 6 (Recommended Operating Conditions) in the official NXP datasheet for NX1117C20Z,115 to ensure safe operation within design margins.
Does NX1117C20Z,115 require an external capacitor on the ADJ pin?
No, NX1117C20Z,115 is a fixed-output variant and does not have an ADJ pin-pin 1 is GND. Only adjustable versions (e.g., NX1117CADJZ) use the ADJ pin and require external resistor dividers. The NX1117C20Z,115 simplifies design by eliminating external components while maintaining ±1 % output accuracy across temperature and load.
What is the thermal shutdown threshold for NX1117C20Z,115?
The thermal shutdown threshold for NX1117C20Z,115 is 135 °C junction temperature, as specified in Table 7 (Thermal Characteristics). Once triggered, the device disables output until junction temperature falls below the hysteresis threshold (~15–20 °C lower), enabling automatic recovery without system intervention. This protects against sustained overload or poor PCB thermal design.
Can NX1117C20Z,115 operate without a minimum load current?
Yes, NX1117C20Z,115 has no minimum load requirement-unlike many older LDOs, it remains stable from 0 mA to 1 A output. This feature is confirmed in Section 2 ("Features and benefits") and Table 8 ("Characteristics"), making it ideal for low-power sleep modes in USB devices and battery-powered systems where load current drops to zero.
How does the dual-VOUT pin configuration (pins 2 and 4) improve performance in NX1117C20Z,115?
The dual-VOUT pins (2 and 4) in NX1117C20Z,115 provide parallel current paths to reduce effective output trace resistance and thermal resistance. This lowers voltage drop under high load and improves heat spreading into the PCB copper, directly supporting its 1 A rating in the thermally constrained SOT223 package. Layout best practice is to connect both pins to the same output plane with equal-length traces.
NX1117C20Z,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 20V
- Voltage - Output (Min/Fixed):
- 2V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.2V @ 800mA
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- 6 mA
- Current - Supply (Max):
- -
- PSRR:
- 67dB (120Hz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-73
NX1117C20Z,115 FAQ
1.How can I place an order for NX1117C20Z,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for NX1117C20Z,115 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 NX1117C20Z,115 reliable?
The price and inventory of NX1117C20Z,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NX1117C20Z,115 is usually 5 days.
3.What payment methods are accepted for NX1117C20Z,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NX1117C20Z,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NX1117C20Z,115?
NX1117C20Z,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NX1117C20Z,115 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 NX1117C20Z,115?
For technical support, including NX1117C20Z,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NX1117C20Z,115 requirements.
6.How does Aetrix verify that NX1117C20Z,115 is sourced from the original manufacturer or authorized distributors?
All NX1117C20Z,115 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 NX1117C20Z,115 meets industry standards.
7.What is the process for return or replacement of NX1117C20Z,115?
All NX1117C20Z,115 units undergo pre-shipment inspection (PSI). If there is an issue with NX1117C20Z,115, 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 NX1117C20Z,115 part is unused and in its original packaging.
Return procedure for NX1117C20Z,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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