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NXP Semiconductors NX1117CE50Z,115
- Part No.:
- NX1117CE50Z,115
- Manufacturer:
- NXP Semiconductors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
NX1117CE50Z,115.pdf
- Description:
- IC REG LINEAR 5V 1A SOT223
- Quantity:
- Payment:
- Shipping:
Inventory:3,724
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Product details
Overview
NX1117CE50Z,115 from NXP Semiconductors is a fixed-output 5.0 V, ±1.25 % 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 - used as post-regulator for DC-DC converters in USB devices and hard drive controllers.
For engineers reviewing the NX1117CE50Z,115 datasheet, NX1117CE50Z,115 pinout, NX1117CE50Z,115 application, or NX1117CE50Z,115 equivalent, key selection criteria include dropout voltage at 800 mA (≤1.2 V), input voltage range (up to 20 V), quiescent current (5–6 mA), thermal resistance (72 K/W on FR4 with pad), and no minimum load requirement for stable regulation.
Technical Context
The NX1117CE50Z,115 implements internal Safe Operating Area (SOA) control to dynamically limit output current under high VIN–VOUT conditions, preventing thermal runaway. Its bandgap reference and error amplifier deliver 5.000 V nominal output with ±1.25 % tolerance across −40 °C to +125 °C ambient.
It operates without external components for fixed-output configuration, requires only 680 nF input/output capacitors with 1 Ω ESR, and achieves 59 dB PSRR at 120 Hz with 2 V(p-p) ripple - optimized for noise-sensitive point-of-load regulation in consumer and industrial equipment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000 V ±1.25 % (4.875–5.125 V) at 10 mA, 25 °C; stable across full −40 °C to +125 °C range |
| Max Output Current | 1 A continuous; current-limited to 1.0–1.5 A depending on VIN–VOUT and temperature |
| Dropout Voltage | 1.07 V typical / 1.2 V max at 800 mA output - enables operation with only 6.5 V input |
| Input Voltage Range | 6.5 V to 20 V - supports wide-input post-regulation after buck converters |
| Quiescent Current | 5–6 mA at VIN = 15 V - low static power draw for battery-backed or always-on systems |
| Thermal Shutdown | Activates at TJ ≈ 135 °C - protects against sustained overload or poor heatsinking |
| PSRR @ 120 Hz | 59 dB - suppresses switching ripple from upstream DC-DC stages |
Pinout & Package
SOT223 (SC-73) plastic surface-mount package with integrated heat sink; 4 leads, standard footprint per Figure 21 (6.7 × 3.7 mm body, 1.8 mm height).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for regulator feedback and thermal path; electrically connected to exposed tab |
| 2 | VOUT | Main regulated 5.0 V output; dual bond-wire connection (pins 2 & 4) lowers resistance |
| 3 | VIN | Unregulated input supply; must be ≥6.5 V for full 5.0 V output at 1 A |
| 4 | VOUT | Second VOUT terminal - paralleled with pin 2 to reduce trace resistance and improve current sharing |
Key Features
| Feature | Design Value |
|---|---|
| No minimum load requirement | Regulates stably from 0 mA to 1 A - eliminates need for dummy load resistors in low-power standby modes |
| SOA control | Automatically reduces current limit as VIN–VOUT increases - prevents junction overheating during high-input/low-output conditions |
| Thermal shutdown with hysteresis | Shuts down at ~135 °C junction temperature; restarts after cooldown - avoids thermal cycling in marginal layouts |
| Low ESR capacitor compatibility | Stable with 680 nF ceramic capacitors (1 Ω ESR) - enables compact, low-cost filtering without tantalum or electrolytic parts |
| Wide operating temperature | Rated for −40 °C to +125 °C ambient - suitable for industrial enclosures and automotive under-hood proximity |
Applications
| USB Power Delivery Interface | Battery Charger Management |
|---|---|
Use Scenario: Regulating 5 V rail for USB 2.0/3.0 host ports powered from a 12 V system bus. IC Role / Device Role / Timing Role: Post-regulator providing clean, low-noise 5 V supply with fast transient response to bus enumeration events. Use Value: 59 dB PSRR rejects switching noise from upstream DC-DC; 1.2 V dropout allows use with 6.5 V minimum input - simplifies power tree design. | Use Scenario: Generating precise 5 V bias for charging ICs and status LEDs in portable Li-ion battery packs. IC Role / Device Role / Timing Role: Fixed-output LDO supplying stable reference and logic power independent of battery voltage sag. Use Value: ±1.25 % output accuracy ensures charger IC reference integrity; thermal shutdown prevents overtemperature during high-current charge phases. |
| Hard Drive Controller Board | Industrial Point-of-Load Regulation |
Use Scenario: Providing regulated 5 V to SATA controller ICs and buffer memory on enterprise HDD PCBs. IC Role / Device Role / Timing Role: Local voltage regulator decoupling high-speed digital logic from noisy 12 V backplane supply. Use Value: Dual VOUT pins (pins 2 & 4) reduce IR drop and improve current sharing; 1 A rating supports burst-mode disk access loads. | Use Scenario: Delivering 5 V to FPGA I/O banks or microcontroller peripherals in factory automation PLC modules. IC Role / Device Role / Timing Role: Robust, thermally protected LDO for mission-critical embedded subsystems operating in extended temperature environments. Use Value: −40 °C to +125 °C rating and SOA control ensure reliability under thermal stress; no minimum load eases integration into partial-power-down states. |
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 |
|---|---|---|---|
| TLV1117-50CDCR | ±2 % output accuracy; 800 mA max output; higher dropout (1.2 V typ @ 800 mA) | Limited to lower-current or less-precise 5 V rails; not rated for 125 °C ambient | Choose for cost-sensitive designs where 5 V tolerance > ±2 % is acceptable and thermal margin is ample. |
| MCP1703T-5002E/MB | ±2 % accuracy; 250 mA max output; ultra-low quiescent current (4 µA) | Not suitable for 1 A loads; optimized for battery-powered always-on sensors, not high-current interfaces | Choose only for micro-power applications below 250 mA - not a functional substitute for NX1117CE50Z,115's 1 A capability. |
Compared with TLV1117-50CDCR and MCP1703T-5002E/MB, the NX1117CE50Z,115 delivers tighter 5 V accuracy (±1.25 %), full 1 A output, and extended temperature support - making it uniquely suited for industrial and storage applications demanding precision, power, and thermal resilience.
Availability
NX1117CE50Z,115 is available at Aetrix Electronics and suitable for USB devices, hard drive controllers, and industrial point-of-load regulation requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for NX1117CE50Z,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 space-constrained, thermally demanding environments - emphasizing SOA protection, wide input range, and no-minimum-load operation.
FAQ
What is the maximum input voltage rating for the NX1117CE50Z,115?
The NX1117CE50Z,115 supports a maximum input voltage of 20 V, as specified in the Absolute Maximum Ratings table. This allows direct use after unregulated 12 V or 15 V intermediate bus stages without additional pre-regulation - critical for compact DC-DC + LDO architectures in USB and storage applications.
Does the NX1117CE50Z,115 require an external capacitor on the ADJ pin?
No - the NX1117CE50Z,115 is a fixed-output variant with internal feedback; pin 1 is GND, not ADJ. Only adjustable versions (e.g., NX1117CEADJZ) require external resistor dividers. The NX1117CE50Z,115 needs only input and output capacitors (680 nF ceramic recommended) for stability.
What is the thermal resistance (Rth(j-a)) of the NX1117CE50Z,115 under standard PCB conditions?
When mounted on a standard FR4 PCB with single-sided copper and no enhanced thermal pad, the NX1117CE50Z,115 has Rth(j-a) = 150 K/W. With a 6 cm² copper pad on the output pins, it improves to 72 K/W - enabling 1 A operation up to +85 °C ambient without forced air cooling.
How does the SOA control function in the NX1117CE50Z,115 affect current delivery?
The SOA control in the NX1117CE50Z,115 dynamically reduces the output current limit as the VIN–VOUT differential increases - for example, limiting to ~1.1 A at 10 V differential versus 1.5 A at 2 V differential. This prevents excessive power dissipation and junction overheating during high-input/low-output conditions.
Is the NX1117CE50Z,115 compatible with lead-free reflow soldering processes?
Yes - the NX1117CE50Z,115 is qualified for lead-free reflow per JEDEC J-STD-020. Its SOT223 package supports peak temperatures up to 260 °C for 10 seconds. Reflow profile must follow NXP's recommended footprint (Figure 22) with proper thermal relief for the exposed tab to ensure reliable solder joint formation.
NX1117CE50Z,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):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.2V @ 800mA
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- 6 mA
- Current - Supply (Max):
- -
- PSRR:
- 59dB (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
NX1117CE50Z,115 FAQ
1.How can I place an order for NX1117CE50Z,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for NX1117CE50Z,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 NX1117CE50Z,115 reliable?
The price and inventory of NX1117CE50Z,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NX1117CE50Z,115 is usually 5 days.
3.What payment methods are accepted for NX1117CE50Z,115?
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4.How is shipping managed for NX1117CE50Z,115?
NX1117CE50Z,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NX1117CE50Z,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 NX1117CE50Z,115?
For technical support, including NX1117CE50Z,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NX1117CE50Z,115 requirements.
6.How does Aetrix verify that NX1117CE50Z,115 is sourced from the original manufacturer or authorized distributors?
All NX1117CE50Z,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 NX1117CE50Z,115 meets industry standards.
7.What is the process for return or replacement of NX1117CE50Z,115?
All NX1117CE50Z,115 units undergo pre-shipment inspection (PSI). If there is an issue with NX1117CE50Z,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 NX1117CE50Z,115 part is unused and in its original packaging.
Return procedure for NX1117CE50Z,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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