My Inquiry
My Account
NXP Semiconductors NX1117C19Z,115
- Part No.:
- NX1117C19Z,115
- Manufacturer:
- NXP Semiconductors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
NX1117C19Z,115.pdf
- Description:
- IC REG LINEAR 1.9V 1A SOT223
- Quantity:
- Payment:
- Shipping:
Inventory:3,771
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NX1117C19Z from NXP Semiconductors is a fixed-output 1.9 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 - used for post-regulation in DC-DC converters and USB-powered devices.
For engineers reviewing the NX1117C19Z datasheet, NX1117C19Z pinout, NX1117C19Z application, or NX1117C19Z equivalent, key selection criteria include dropout voltage at 800 mA (≤1.2 V), quiescent current (5–6 mA), PSRR at 120 Hz (67 dB), line/load regulation (≤4.0 mV), and operation across −40 °C to +125 °C.
Technical Context
The NX1117C19Z implements an internal bandgap reference (1.25 V) and error amplifier to regulate output voltage with feedback via internal resistor divider. Its Safe Operating Area (SOA) control dynamically limits output current under high VIN−VOUT conditions to prevent thermal runaway.
It requires no minimum load for regulation, supports input voltages up to 20 V, and maintains stable operation with 680 nF input/output capacitors in series with 1 Ω ESR - enabling use with low-ESR ceramic capacitors without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | 1.900 V (±1 % over −40 °C to +125 °C; no minimum load required) |
| Max output current | 1 A (internally limited; SOA protection active above ~1.4 V VIN−VOUT) |
| Dropout voltage | 1.2 V max at 800 mA (enables regulation with VIN as low as 3.1 V) |
| Quiescent current | 5–6 mA (stable across full input range; enables low-power standby modes) |
| PSRR @ 120 Hz | 67 dB (suppresses ripple from upstream switching converters) |
| Line regulation | ≤4.0 mV (input variation 3.3–11.9 V; ensures stable rail under supply transients) |
| Load regulation | ≤6 mV (0–800 mA load step; critical for digital logic and analog sensor rails) |
Pinout & Package
SOT223 (SC-73) plastic surface-mount package with integrated heat sink; 4-pin configuration where pins 2 and 4 are internally connected to VOUT for enhanced thermal performance and current handling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference and thermal path; connects to exposed pad on PCB for heatsinking |
| 2 | VOUT | Main regulated output; electrically tied to pin 4 for parallel current delivery |
| 3 | VIN | Unregulated input (up to 20 V); requires local 680 nF bypass capacitor |
| 4 | VOUT | Secondary output connection; shares same node as pin 2 to reduce trace resistance and improve thermal dissipation |
Key Features
| Feature | Design Value |
|---|---|
| ±1 % output accuracy | Ensures tight tolerance for 1.9 V logic rails (e.g., low-voltage microcontrollers, FPGAs) |
| Thermal shutdown | Activates at 135 °C junction temperature to prevent permanent damage during overload or poor heatsinking |
| No minimum load requirement | Enables stable regulation even at zero load - ideal for always-on system monitors and sleep-mode circuits |
| SOA control | Dynamically reduces current limit as VIN−VOUT increases, preventing thermal runaway in high-input applications |
| Wide input range (up to 20 V) | Supports direct connection to 12 V or 19 V adapter inputs without pre-regulation stage |
Applications
| Post Regulator for DC-DC Converters | Battery-Powered USB Devices |
|---|---|
Use Scenario: Clean 1.9 V rail generation after a noisy buck converter supplying a low-power MCU. IC Role / Device Role / Timing Role: Final-stage LDO providing low-noise, tightly regulated power with fast transient response. Use Value: Reduces output ripple by 67 dB at 120 Hz and holds load regulation within ±6 mV during 0–800 mA steps. | Use Scenario: Powering USB-peripheral ICs (e.g., USB-to-UART bridges, HID controllers) from a 5 V bus. IC Role / Device Role / Timing Role: Fixed-output LDO converting 5 V USB supply to precise 1.9 V logic voltage. Use Value: Delivers 1 A peak current with ±1 % accuracy and no minimum load - eliminating need for dummy resistors. |
| Hard Drive Controller Power | Industrial Point-of-Load Regulation |
Use Scenario: Supplying 1.9 V to SATA controller ASICs requiring clean, stable voltage during spin-up surges. IC Role / Device Role / Timing Role: High-current LDO with SOA protection to withstand input voltage spikes and load transients. Use Value: Maintains regulation across −40 °C to +125 °C and limits current before thermal failure during sustained 800 mA loads. | Use Scenario: Local regulation for FPGA I/O banks or ADC reference supplies in factory automation equipment. IC Role / Device Role / Timing Role: Precision LDO ensuring voltage stability despite wide ambient temperature swings and board-level noise. Use Value: Achieves ≤0.7 % total output variation over temperature and ≤0.3 % long-term drift after 1000 h. |
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 |
|---|---|---|---|
| TLV1117-19CDCYR | ±2 % output accuracy; 800 mA max output; higher dropout (1.3 V @ 800 mA) | Lower precision and current capability; suitable only for non-critical 1.9 V rails | Select when cost sensitivity outweighs accuracy and thermal margin requirements |
| LD1117S19TR | ±2 % accuracy; 800 mA max; no SOA control; wider quiescent current range (5–10 mA) | Lacks dynamic SOA protection and tighter regulation - risk of thermal failure under high VIN−VOUT | Prefer only in low-input-voltage designs (<6 V) where SOA is not triggered |
Compared with TLV1117-19CDCYR and LD1117S19TR, the NX1117C19Z delivers superior accuracy (±1 % vs. ±2 %), higher current (1 A vs. 800 mA), lower dropout (1.2 V vs. ≥1.3 V), and integrated SOA control - making it optimal for thermally constrained, high-reliability 1.9 V point-of-load applications.
Availability
NX1117C19Z is available at Aetrix Electronics and suitable for post-regulation in DC-DC converters, USB device power management, and industrial point-of-load applications requiring stable component supply and long-term lifecycle support.
Supply support for NX1117C19Z 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 specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The NX1117C series is part of NXP's precision analog portfolio, designed specifically for high-accuracy, high-current LDO applications in noise-sensitive and thermally demanding environments.
FAQ
What is the maximum input voltage rating for the NX1117C19Z?
The NX1117C19Z 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 supplies without external pre-regulation, provided thermal design accommodates power dissipation at high VIN−VOUT differentials.
Does the NX1117C19Z require an external capacitor for stability?
Yes, the NX1117C19Z requires a minimum 680 nF output capacitor with ≤1 Ω ESR, as specified in the datasheet. Ceramic capacitors meeting this ESR requirement ensure loop stability and transient response; omitting or undersizing this capacitor risks oscillation or poor load regulation.
How does the SOA control function in the NX1117C19Z?
The SOA control in the NX1117C19Z dynamically reduces the output current limit as the VIN−VOUT differential increases - preventing excessive power dissipation and thermal runaway. At 5 V VIN−VOUT, the current limit drops to ~1.1 A; at 15 V, it falls to ~0.7 A, protecting the device within its safe operating area.
What is the typical PSRR performance of the NX1117C19Z at 120 Hz?
The NX1117C19Z delivers 67 dB PSRR at 120 Hz under standard test conditions (VIN−VOUT = 2.4 V, IOUT = 40 mA). This level of ripple rejection effectively attenuates low-frequency switching artifacts from upstream DC-DC converters, ensuring clean 1.9 V supply for sensitive analog or digital circuitry.
Is a minimum load required for regulation with the NX1117C19Z?
No, the NX1117C19Z requires no minimum load for regulation - a key advantage over many legacy LDOs. It maintains stable 1.9 V output from 0 mA to 1 A, simplifying design for systems with variable or intermittent loads such as sleep-mode peripherals or sensor nodes.
NX1117C19Z,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):
- 1.9V
- 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
NX1117C19Z,115 FAQ
1.How can I place an order for NX1117C19Z,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for NX1117C19Z,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 NX1117C19Z,115 reliable?
The price and inventory of NX1117C19Z,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NX1117C19Z,115 is usually 5 days.
3.What payment methods are accepted for NX1117C19Z,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NX1117C19Z,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NX1117C19Z,115?
NX1117C19Z,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NX1117C19Z,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 NX1117C19Z,115?
For technical support, including NX1117C19Z,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NX1117C19Z,115 requirements.
6.How does Aetrix verify that NX1117C19Z,115 is sourced from the original manufacturer or authorized distributors?
All NX1117C19Z,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 NX1117C19Z,115 meets industry standards.
7.What is the process for return or replacement of NX1117C19Z,115?
All NX1117C19Z,115 units undergo pre-shipment inspection (PSI). If there is an issue with NX1117C19Z,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 NX1117C19Z,115 part is unused and in its original packaging.
Return procedure for NX1117C19Z,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NX1117C19Z,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 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…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
