My Inquiry
My Account
NXP Semiconductors NX1117CE25Z,115
- Part No.:
- NX1117CE25Z,115
- Manufacturer:
- NXP Semiconductors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
NX1117CE25Z,115.pdf
- Description:
- IC REG LINEAR 2.5V 1A SOT223
- Quantity:
- Payment:
- Shipping:
Inventory:1,304
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NX1117CE25Z,115 from NXP Semiconductors is a fixed-output 2.5 V, ±1.25 % accuracy, low-dropout linear voltage regulator in SOT223 package, delivering up to 1 A output current with dropout voltage as low as 0.95 V at 100 mA. It integrates Safe Operating Area (SOA) control, thermal shutdown, and output current limiting, and is used in post-regulation for DC-DC converters and USB-powered systems.
For engineers reviewing the NX1117CE25Z,115 datasheet, NX1117CE25Z,115 pinout, NX1117CE25Z,115 application, or NX1117CE25Z,115 equivalent, key selection criteria include output accuracy (±1.25 %), dropout performance at 800 mA (1.2 V max), thermal resistance (72 K/W on FR4 with 6 cm² pad), PSRR (65 dB at 120 Hz), and SOA protection under high Vin–Vout conditions.
Technical Context
The NX1117CE25Z,115 implements an internal bandgap reference (1.250 V typical) and error amplifier driving a PNP pass transistor, enabling stable regulation across −40 °C to +125 °C ambient. Its SOA control dynamically limits output current when Vin–Vout exceeds safe power dissipation thresholds, preventing thermal runaway without external components.
It operates with no minimum load requirement and supports input voltages up to 20 V. The device maintains 2.5 V output with ≤4.5 mV load regulation (0–800 mA) and ≤2.5 mV line regulation (3.9–12 V input), verified over full temperature range and lifetime stability of 0.3 % after 1000 h.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.500 V (±1.25 % accuracy over −40 °C to +125 °C) |
| Max Output Current | 1 A continuous; current-limited to 1.0–1.5 A depending on Vin–Vout |
| Dropout Voltage | 1.07 V max at 800 mA output, enabling operation with only 3.57 V input |
| PSRR | 65 dB at 120 Hz, suppressing ripple from upstream switching converters |
| Quiescent Current | 5–6 mA at 10 V input, enabling low-noise regulation without excessive bias loss |
| Thermal Shutdown | Activates at 135 °C junction temperature, with automatic recovery after cooldown |
| Operating Temp | −40 °C to +125 °C ambient, supporting industrial and automotive under-hood applications |
Pinout & Package
The NX1117CE25Z,115 is housed in a plastic SOT223 (SC-73) surface-mount package with integrated heat sink, rated for 1.5 W dissipation on FR4 with 6 cm² copper pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for feedback and internal circuitry; electrically connected to exposed tab |
| 2 | VOUT | Main regulated output terminal; connects directly to load and output capacitor |
| 3 | VIN | Unregulated input supply; must be ≥3.9 V for full 2.5 V regulation at 800 mA |
| 4 | VOUT | Second output connection; paralleled with Pin 2 to reduce trace resistance and improve current sharing |
Key Features
| Feature | Design Value |
|---|---|
| No minimum load required | Enables stable regulation down to 0 mA output - critical for standby and sleep-mode circuits |
| SOA control | Prevents thermal failure during high-input/low-output conditions without external foldback circuitry |
| Thermal shutdown with hysteresis | Shuts down at 135 °C and re-enables only after cooling to ~120 °C, avoiding oscillation |
| Low output noise | 0.003 % RMS noise (10 Hz–10 kHz) ensures clean supply for analog and RF subsystems |
| Wide input range | Supports 3.9 V to 20 V input - compatible with 5 V, 12 V, and 19 V adapter rails |
Applications
| Post Regulator for DC-DC Converters | USB-Powered Devices |
|---|---|
Use Scenario: Downstream regulation after a buck converter to reduce switching noise and meet tight voltage tolerance requirements. IC Role / Device Role / Timing Role: Low-noise linear post-regulator providing final 2.5 V rail for ADCs, sensors, or FPGAs. Use Value: 65 dB PSRR suppresses 120 Hz ripple from AC-DC adapters and high-frequency noise from DC-DC switching edges. |
Use Scenario: Powering USB-peripheral ICs (e.g., USB hubs, PHYs, microcontrollers) from 5 V bus with precise 2.5 V logic or I/O supply. IC Role / Device Role / Timing Role: Fixed-output LDO supplying stable 2.5 V to USB interface circuitry requiring ±1.25 % accuracy. Use Value: No minimum load needed enables direct use during USB suspend mode; SOA protection prevents fault propagation from shorted downstream loads. |
| Battery Charger Circuits | Hard Drive Controllers |
Use Scenario: Providing bias voltage to charger management ICs or level-shifting circuitry in Li-ion charging systems. IC Role / Device Role / Timing Role: Precision 2.5 V reference supply for battery voltage monitoring and charge termination comparators. Use Value: 0.3 % long-term stability ensures consistent charge cutoff over product lifetime; −40 °C to +125 °C rating supports wide ambient operation. |
Use Scenario: Supplying 2.5 V to servo control logic or buffer amplifiers in 2.5-inch HDD controller boards. IC Role / Device Role / Timing Role: High-current LDO powering motor driver bias rails and spindle controller logic. Use Value: 1 A capability supports peak transient loads during spin-up; thermal shutdown protects against enclosure overheating in confined drive bays. |
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 |
|---|---|---|---|
| TLV1117-25CDCYR | ±1 % accuracy, 800 mA max output, higher quiescent current (6–10 mA) | Lacks SOA control; relies on external current limiting for high Vin–Vout stress | Preferred where tighter output tolerance is required and input voltage stays near nominal (e.g., 5 V → 2.5 V). |
| LD1117S25TR | ±2 % accuracy, 800 mA max output, no thermal shutdown hysteresis | Lower PSRR (60 dB), wider output variation over temperature (±2 % vs ±1.25 %) | Suitable for cost-sensitive consumer applications where 2.5 V tolerance > ±2 % is acceptable. |
Compared with TLV1117-25CDCYR and LD1117S25TR, the NX1117CE25Z,115 delivers superior thermal robustness via SOA control and tighter accuracy over temperature, while maintaining identical SOT223 footprint and pinout - simplifying drop-in validation in industrial designs demanding reliability under variable input conditions.
Availability
NX1117CE25Z,115 is available at Aetrix Electronics and suitable for post-regulation in DC-DC converters, USB peripheral power supplies, and hard drive controller boards requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for NX1117CE25Z,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 to deliver high-reliability, low-noise linear regulation in space-constrained industrial and computing systems - emphasizing thermal resilience, wide input range, and precision output stability without external compensation.
FAQ
What is the maximum input voltage rating for the NX1117CE25Z,115?
The NX1117CE25Z,115 supports a maximum input voltage of 20 V, as specified in its Absolute Maximum Ratings. This allows direct use with common 12 V and 19 V adapter rails, provided the dropout condition (Vin ≥ Vout + Vdo) is met - e.g., ≥3.9 V input for full 2.5 V regulation at 800 mA. Exceeding 20 V risks permanent damage.
Does the NX1117CE25Z,115 require an external output capacitor, and what value is recommended?
Yes, the NX1117CE25Z,115 requires an external output capacitor for stability. The datasheet specifies 680 nF in series with 1 Ω ESR as the test condition, but recommends ≥10 μF ceramic or tantalum for production use. A 10 μF X7R ceramic capacitor placed within 5 mm of the VOUT and GND pins ensures adequate transient response and PSRR performance.
How does the SOA control function in the NX1117CE25Z,115 differ from standard current limiting?
Unlike simple foldback or constant-current limiting, the SOA control in the NX1117CE25Z,115 dynamically reduces output current based on real-time Vin–Vout differential to keep power dissipation within safe junction temperature limits. This prevents thermal runaway during high-input/low-output conditions - such as 12 V input regulating 2.5 V at 800 mA - without requiring external sensing or compensation.
Is the NX1117CE25Z,115 pin-compatible with the NX1117C25Z,115?
Yes, the NX1117CE25Z,115 is pin-compatible and footprint-compatible with the NX1117C25Z,115. Both share identical SOT223 packaging, pinout (GND, VOUT, VIN, VOUT), and electrical interface. The only difference is output voltage accuracy: ±1.25 % for NX1117CE25Z,115 versus ±1 % for NX1117C25Z,115 - making them direct substitutes where ±1.25 % tolerance is acceptable.
What is the thermal resistance (Rth j-a) of the NX1117CE25Z,115 under standard PCB layout conditions?
On a standard FR4 PCB with single-sided copper and no extended copper pour, the NX1117CE25Z,115 exhibits a junction-to-ambient thermal resistance (Rth j-a) of 150 K/W. With a 6 cm² copper pad connected to the exposed tab (Pin 1/GND), Rth j-a improves to 72 K/W - enabling 1 A operation up to +85 °C ambient without forced airflow.
NX1117CE25Z,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):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.2V @ 800mA
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- 6 mA
- Current - Supply (Max):
- -
- PSRR:
- 65dB (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
NX1117CE25Z,115 FAQ
1.How can I place an order for NX1117CE25Z,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for NX1117CE25Z,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 NX1117CE25Z,115 reliable?
The price and inventory of NX1117CE25Z,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NX1117CE25Z,115 is usually 5 days.
3.What payment methods are accepted for NX1117CE25Z,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NX1117CE25Z,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NX1117CE25Z,115?
NX1117CE25Z,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NX1117CE25Z,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 NX1117CE25Z,115?
For technical support, including NX1117CE25Z,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NX1117CE25Z,115 requirements.
6.How does Aetrix verify that NX1117CE25Z,115 is sourced from the original manufacturer or authorized distributors?
All NX1117CE25Z,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 NX1117CE25Z,115 meets industry standards.
7.What is the process for return or replacement of NX1117CE25Z,115?
All NX1117CE25Z,115 units undergo pre-shipment inspection (PSI). If there is an issue with NX1117CE25Z,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 NX1117CE25Z,115 part is unused and in its original packaging.
Return procedure for NX1117CE25Z,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NX1117CE25Z,115 Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
