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onsemi NCP717BMX280TCG
- Part No.:
- NCP717BMX280TCG
- Manufacturer:
- onsemi
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
NCP717BMX280TCG.pdf
- Description:
- IC REG LINEAR 2.8V 300MA 4XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,935
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Product details
Overview
NCP717BMX280TCG from onsemi is a 300 mA, fixed 2.8 V output low-dropout (LDO) regulator in XDFN-4 1.0×1.0 mm package, featuring 25 µA typical quiescent current, 22 µVRMS output noise (100 Hz–100 kHz), and 175 mV typical dropout at 300 mA - optimized for battery-powered portable electronics requiring ultra-low power and high noise immunity.
For engineers reviewing the NCP717BMX280TCG datasheet, pinout, applications, or equivalent options, key selection criteria include its ±2% output accuracy over load/line/temperature, 70 dB PSRR at 1 kHz, EN-controlled shutdown with <1 µA disable current, stability with 1 µF ceramic output capacitor, and absence of active output discharge (B-suffix variant).
Technical Context
The NCP717BMX280TCG employs a PMOS pass transistor architecture enabling low dropout and inherent reverse-current blocking. Its adaptive quiescent current circuitry dynamically reduces ground current to 25 µA at no-load while maintaining regulation, critical for extended battery life in always-on subsystems.
It integrates thermal shutdown (160°C trip, 20°C hysteresis), current limiting (~379 mA typ.), and EN logic with 0.9 V turn-on / 0.4 V turn-off thresholds. Unlike A/C variants, the B-suffix device omits active output discharge, simplifying use where controlled VOUT ramp-down is not required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8 V ±2% over −40°C to +125°C, load 0–300 mA, line 2.3 V–5.5 V - ensures stable core voltage for 2.8 V I/O rails or RF biasing. |
| Quiescent Current | 25 µA typical at no-load - enables >1-year battery life in coin-cell–powered IoT sensors with periodic wake-up. |
| Dropout Voltage | 175 mV typical at 300 mA - allows operation from single Li-ion (3.0 V min) down to 2.975 V input while sustaining full load. |
| Output Noise | 22 µVRMS (100 Hz–100 kHz) - meets stringent noise requirements for ADC reference supplies and RF front-end LNA biasing. |
| PSRR | 70 dB at 1 kHz - suppresses switching noise from adjacent DC-DC converters feeding noisy system rails. |
| Stability | Guaranteed with ≥1 µF ceramic COUT (ESR < 700 mΩ) - eliminates need for tantalum or electrolytic capacitors, reducing BOM cost and footprint. |
| Enable Threshold | VEN_HI = 0.9 V, VEN_LO = 0.4 V - compatible with 1.8 V and 3.3 V GPIOs without level-shifting. |
Pinout & Package
Package: XDFN-4 1.0×1.0 mm, 0.65 mm pitch, exposed pad (EPAD) for thermal dissipation - supports ultra-compact PCB layouts in space-constrained wearables and hearing aids.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT | Regulated output | Delivers stable 2.8 V; requires ≥1 µF ceramic capacitor to GND for stability; trace resistance must be minimized to preserve load regulation. |
| 2: GND | Power ground | Reference node for regulation and protection circuits; EPAD must be soldered directly to PCB ground plane for thermal performance. |
| 3: EN | Enable control input | Logic-high (>0.9 V) enables regulation; logic-low (<0.4 V) disables output and reduces IN current to ~10 nA - no active discharge. |
| 4: IN | Input supply | Accepts 1.8–5.5 V; requires ≥1 µF ceramic capacitor close to pin to suppress input ripple and support transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ | 25 µA typical no-load current extends battery runtime in always-on sensor nodes and backup power domains. |
| No active discharge | B-suffix variant lacks internal discharge FET - prevents unintended VOUT collapse during EN deassertion, simplifying power sequencing in multi-rail systems. |
| High PSRR | 70 dB at 1 kHz enables clean 2.8 V supply from noisy shared system rails, reducing need for additional filtering stages. |
| Small-footprint stability | Stable with 1 µF ceramic output capacitor - eliminates ESR tuning and saves board area vs. legacy LDOs requiring 10–22 µF tantalum. |
| Robust protection | Integrated thermal shutdown (160°C), current limit (~379 mA), and short-circuit immunity ensure reliable operation under fault conditions. |
Applications
| Wearable Health Sensors | Bluetooth LE Audio Devices |
|---|---|
Use Scenario: Continuous ECG/PPG signal acquisition in wrist-worn monitors powered by CR2032 coin cell. IC Role / Device Role / Timing Role: Provides ultra-low-noise 2.8 V bias to analog front-end and ADC reference, minimizing quantization error. Use Value: 22 µVRMS noise and 25 µA IQ enable >30-day battery life and sub-µV signal integrity without external filtering. | Use Scenario: Powering Bluetooth 5.0 SoC and MEMS microphone in true wireless stereo earbuds. IC Role / Device Role / Timing Role: Supplies clean 2.8 V to RF transceiver and digital core, rejecting switching noise from charging IC and buck converter. Use Value: 70 dB PSRR at 1 kHz and 175 mV dropout allow direct regulation from 3.0 V battery, eliminating intermediate rail and saving PCB space. |
| Industrial IoT Edge Nodes | Portable Medical Diagnostics |
Use Scenario: Low-power LoRaWAN sensor node monitoring temperature/humidity in remote locations. IC Role / Device Role / Timing Role: Powers microcontroller and LoRa transceiver during brief transmit bursts, then reverts to ultra-low-IQ sleep mode. Use Value: Dynamic IQ adjustment maintains 25 µA standby current while delivering 300 mA peak for radio transmission without voltage droop. | Use Scenario: Handheld ultrasound probe with FPGA-based beamforming and analog front-end. IC Role / Device Role / Timing Role: Supplies precision 2.8 V to clock buffers and ADC drivers requiring low phase noise and minimal supply-induced jitter. Use Value: ±2% accuracy across −40°C to +85°C and 22 µVRMS noise ensure consistent image resolution and SNR across operating environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6210B282MR-G | 280 mV dropout at 300 mA; 1.0 µA IQ; no EN pin; SOT-25 package (2.9×2.8 mm) | Lacks enable control and thermal shutdown; larger footprint; suited for cost-sensitive, non-EN applications | Select when board space permits larger package and EN functionality is unnecessary. |
| Micrel MIC5205-2.8YM5-TR | 350 mV dropout at 300 mA; 80 µA IQ; 30 µVRMS noise; SOT-23-5 package | Higher dropout and IQ reduce battery life; higher noise impacts sensitive analog circuits | Choose only if XDFN-4 assembly capability is unavailable and 2.8 V tolerance allows higher dropout margin. |
Compared with Torex XC6210B282MR-G and Micrel MIC5205-2.8YM5-TR, the NCP717BMX280TCG delivers superior dropout (175 mV), lower noise (22 µVRMS), and integrated EN control in a 1.0×1.0 mm footprint - making it optimal for next-gen compact, battery-constrained designs demanding high precision and low power.
Availability
NCP717BMX280TCG is available at Aetrix Electronics and suitable for wearable health sensors, Bluetooth LE audio devices, industrial IoT edge nodes, and portable medical diagnostics requiring stable component supply with guaranteed long-term availability.
Supply support for NCP717BMX280TCG 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 delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCP717 family is designed for ultra-low-power, noise-sensitive portable electronics - emphasizing minimal quiescent current, high PSRR, and small-footprint stability to extend battery life and simplify layout in space-constrained designs.
FAQ
What is the output voltage tolerance of the NCP717BMX280TCG over temperature and load?
The NCP717BMX280TCG maintains ±2% output voltage accuracy across −40°C to +125°C junction temperature, 0–300 mA load, and input voltage range of 2.3 V to 5.5 V. This tight tolerance ensures reliable operation of 2.8 V logic and analog circuits without external trimming or feedback adjustment.
Does the NCP717BMX280TCG include active output discharge?
No, the NCP717BMX280TCG (B-suffix) does not include active output discharge. Unlike A/C variants, it lacks an internal discharge FET. When disabled via EN, the output floats and discharges only through external load or parasitic paths - critical for applications requiring controlled power-down sequencing.
What is the minimum output capacitance required for stability with the NCP717BMX280TCG?
The NCP717BMX280TCG is stable with a minimum 1.0 µF ceramic output capacitor (X5R/X7R). The effective capacitance must remain ≥100 nF under DC bias and temperature extremes; ESR must be <700 mΩ. Tantalum capacitors are not recommended due to high and temperature-variable ESR.
How does the NCP717BMX280TCG achieve ultra-low quiescent current?
The NCP717BMX280TCG uses dynamic quiescent current adjustment that scales internal bias currents with load - delivering 25 µA typical IQ at no-load while maintaining regulation, and increasing only to ~250 µA at 300 mA. This architecture maximizes battery life in intermittent-duty applications like sensor nodes.
What protection features are integrated into the NCP717BMX280TCG?
The NCP717BMX280TCG integrates thermal shutdown (160°C trip, 20°C hysteresis), output current limiting (~379 mA typ.), and short-circuit protection. It also features EN pin hysteresis (56 mV) and deglitching to prevent false toggling from noise - ensuring robust operation in harsh electrical environments without external protection components.
NCP717BMX280TCG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 4-XDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.28V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 35 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-XDFN (1x1)
NCP717BMX280TCG FAQ
1.How can I place an order for NCP717BMX280TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP717BMX280TCG 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 NCP717BMX280TCG reliable?
The price and inventory of NCP717BMX280TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP717BMX280TCG is usually 5 days.
3.What payment methods are accepted for NCP717BMX280TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP717BMX280TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP717BMX280TCG?
NCP717BMX280TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP717BMX280TCG 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 NCP717BMX280TCG?
For technical support, including NCP717BMX280TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP717BMX280TCG requirements.
6.How does Aetrix verify that NCP717BMX280TCG is sourced from the original manufacturer or authorized distributors?
All NCP717BMX280TCG 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 NCP717BMX280TCG meets industry standards.
7.What is the process for return or replacement of NCP717BMX280TCG?
All NCP717BMX280TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCP717BMX280TCG, 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 NCP717BMX280TCG part is unused and in its original packaging.
Return procedure for NCP717BMX280TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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