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onsemi NCP706MX295TAG
- Part No.:
- NCP706MX295TAG
- Manufacturer:
- onsemi
- Package:
- 8-XFDFN Exposed Pad
- Datasheet:
-
NCP706MX295TAG.pdf
- Description:
- IC REG LINEAR 2.95V 1A 8XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,944
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Product details
Overview
NCP706MX295TAG from onsemi is a 2.95 V fixed-output, 1 A very low dropout (LDO) linear regulator with enable control, ±1% output voltage accuracy over load/line/temperature, 155 mV max dropout at 1 A, and stable operation with only 1 µF ceramic output capacitance. It serves as a post-regulation power supply for noise-sensitive core logic in portable Li-ion battery-powered systems.
For engineers reviewing the NCP706MX295TAG datasheet, pinout, applications, or equivalent options, key selection considerations include its 2.95 V output precision, XDFN8 thermal performance, shutdown current <1 µA, PSRR of 58 dB at 1 kHz, and compatibility with space-constrained mobile PCB layouts.
Technical Context
The NCP706MX295TAG implements a PMOS pass transistor architecture enabling ultra-low dropout and high PSRR. Its internal soft-start limits inrush current during enable assertion, while remote sense (SNS) pin supports accurate regulation at point-of-load under PCB trace resistance.
Thermal protection includes 160°C junction shutdown with 20°C hysteresis, and current limiting activates at 1.1 A under short-circuit conditions. The device operates across −40°C to +125°C junction temperature with input range 2.4 V–5.5 V, making it suitable for single-cell Li-ion (3.0–4.2 V) and multi-rail system post-regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.95 V ±1% (2.9205–2.9795 V), guaranteed over full temperature/load range - enables precise core voltage delivery without external feedback. |
| Max Dropout Voltage | 155 mV at 1 A load - allows operation down to VIN = 3.105 V, extending battery runtime in Li-ion applications. |
| Quiescent Current | 170–230 µA (typ. 200 µA) at zero load - minimizes standby power loss in always-on subsystems. |
| PSRR @ 1 kHz | 58 dB - suppresses switching noise from upstream DC-DC converters feeding the LDO input. |
| Min Output Capacitance | 1 µF ceramic - reduces board area vs. legacy LDOs requiring ≥4.7 µF, compatible with 0402/0603 MLCCs. |
| Enable Threshold | VEN_HI = 0.9 V, VEN_LO = 0.4 V - interfaces directly with 1.8 V/3.3 V GPIO without level-shifting. |
| Shutdown Current | 0.1–1 µA - ensures negligible battery drain during system sleep modes. |
Pinout & Package
XDFN8 1.6 mm × 1.2 mm, 0.4 mm pitch, thermally enhanced package with exposed pad electrically tied to GND. Package code: CASE 711AS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | OUT | Regulated 2.95 V output; requires ≥1 µF ceramic capacitor to GND for stability. |
| 3 | N/C | Not connected; may be tied to GND to improve thermal dissipation. |
| 4 | SNS | Remote sense input; connects directly to load-side output rail to compensate for PCB trace IR drop. |
| 5 | GND | Power ground reference; must connect to low-impedance ground plane. |
| 6 | EN | Active-high enable; >0.9 V enables regulator, <0.4 V forces shutdown. |
| 7, 8 | IN | Input supply (2.4–5.5 V); requires local 4.7 µF decoupling capacitor. |
| Exposed Pad | GND | Thermal and electrical connection to PCB ground plane; mandatory for rated 1 A operation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 155 mV max at 1 A enables use with aging Li-ion cells down to 3.1 V while maintaining regulation. |
| High-accuracy output | ±1% tolerance over −40°C to +125°C ensures reliable operation of voltage-critical processors and RF ICs. |
| Low-noise regulation | 300 µVRMS output noise (100 Hz–100 kHz) prevents clock jitter and ADC errors in precision analog subsystems. |
| Robust protection | Thermal shutdown (160°C), current limit (1.1 A), and reverse leakage <5 µA in shutdown ensure field reliability. |
| Small-footprint packaging | XDFN8 1.6×1.2 mm saves >60% board area vs. SOT-223, critical for smartphones and wearables. |
Applications
| Mobile Application Processor Core Supply | Wi-Fi/Bluetooth SoC Power Rail |
|---|---|
|
Use Scenario: Powers 2.95 V I/O or core domain of application processors (e.g., Qualcomm Snapdragon, MediaTek Dimensity) in smartphones and tablets. IC Role / Device Role / Timing Role: Primary post-regulator delivering clean, low-noise 2.95 V from a higher-voltage buck converter output. Use Value: Enables stable processor operation at 2.95 V with ±1% accuracy and 58 dB PSRR, preventing brownouts during burst loads. |
Use Scenario: Supplies regulated 2.95 V to Wi-Fi 6/6E and Bluetooth 5.x transceivers in portable IoT devices and earbuds. IC Role / Device Role / Timing Role: Low-noise LDO providing interference-free power to RF front-end and digital baseband blocks. Use Value: 300 µVRMS noise and 1 µF stability reduce EVM degradation and packet error rate in 2.4/5 GHz radios. |
| Portable Medical Sensor Hub | Industrial Handheld Scanner |
|
Use Scenario: Powers analog front-end (AFE), ADC, and microcontroller in battery-operated glucose meters and pulse oximeters. IC Role / Device Role / Timing Role: Precision voltage source ensuring accurate sensor excitation and signal chain biasing. Use Value: ±1% output accuracy and 155 mV dropout extend usable battery life while maintaining clinical-grade measurement repeatability. |
Use Scenario: Delivers 2.95 V to image sensor, laser driver, and decode ASIC in rugged barcode scanners. IC Role / Device Role / Timing Role: High-reliability LDO with thermal shutdown and current limit for intermittent high-current pulses. Use Value: Withstands 1.1 A transient loads during laser activation and maintains regulation during cold-temperature battery discharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6210B295MR-G | 2.95 V fixed, 1 A, 250 mV dropout (vs. 155 mV), no SNS pin, 25 µA quiescent current | Lacks remote sensing; less suitable for long-trace or high-precision point-of-load regulation | Prefer NCP706MX295TAG when trace IR compensation or lowest dropout is required. |
| Diodes Inc. AP7361-2950W5-7 | 2.95 V fixed, 1 A, 300 mV dropout, no enable pin, 60 µA quiescent current | No enable control; unsuitable for dynamic power sequencing or low-power sleep states | Prefer NCP706MX295TAG when system-level power management via EN pin is needed. |
Compared with XC6210B295MR-G and AP7361-2950W5-7, the NCP706MX295TAG delivers superior dropout performance, integrated enable functionality, and remote sensing-critical for compact, battery-sensitive designs requiring tight voltage regulation at the load.
Availability
NCP706MX295TAG is available at Aetrix Electronics and suitable for mobile computing, wireless connectivity, and portable medical equipment requiring stable component supply with consistent parametric performance and Pb-free compliance.
Supply support for NCP706MX295TAG 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 focused on energy-efficient power management, analog, sensors, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The NCP706MX295TAG belongs to the NCP706 family of ultra-low-dropout regulators designed specifically for space-constrained, battery-powered portable electronics demanding high accuracy, low noise, and minimal footprint.
FAQ
What is the minimum output capacitance required for stable operation of the NCP706MX295TAG?
The NCP706MX295TAG requires a minimum 1 µF ceramic output capacitor for stable operation, as confirmed in the Applications Information section of the datasheet. This value is lower than the 4.7 µF required for 2.1 V/2.2 V variants due to optimized internal compensation for the 2.95 V output version. Using a 1 µF X5R/X7R MLCC placed close to the OUT and GND pins ensures loop stability and meets transient response requirements.
Does the NCP706MX295TAG support remote voltage sensing, and how is it implemented?
Yes, the NCP706MX295TAG supports remote voltage sensing via the dedicated SNS pin (Pin 4). This pin must be connected directly to the load-side output rail to compensate for voltage drop across PCB traces between the regulator and load. When used, the feedback loop regulates at the SNS node rather than at the OUT pin, improving output accuracy under varying load currents and trace resistances.
What is the maximum input voltage rating for the NCP706MX295TAG, and what happens above this limit?
The absolute maximum input voltage for the NCP706MX295TAG is 6 V, per the Absolute Maximum Ratings table. Operation above 5.5 V (the recommended maximum operating input) risks permanent damage. Exceeding 6 V violates the absolute rating and may cause immediate failure due to gate oxide breakdown in the PMOS pass element or internal circuitry overstress.
How does the enable function behave during power-up, and what is the recommended handling if EN is unused?
The NCP706MX295TAG enables when EN rises above 0.9 V and disables when EN falls below 0.4 V. If the enable function is not used, the EN pin must be connected directly to VIN to ensure continuous operation. Leaving EN floating is not permitted, as it may result in unpredictable regulator state and potential oscillation or partial turn-on.
What thermal design guidance applies to the NCP706MX295TAG in 1 A continuous operation?
For 1 A continuous operation, the NCP706MX295TAG requires the exposed thermal pad to be soldered to a minimum 100 mm² copper ground plane. The datasheet specifies RJA = 160°C/W in still air; with proper PCB copper area and via stitching, junction temperature rise can be limited to <40°C at 1 A with 3.3 V input. Pin 3 (N/C) should also be connected to GND to further enhance thermal conduction.
NCP706MX295TAG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-XFDFN 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):
- 2.95V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.23V @ 1A
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- 230 µA
- Current - Supply (Max):
- -
- PSRR:
- 65dB ~ 52dB (100Hz ~ 10kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Soft Start, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-XDFN (1.6x1.2)
NCP706MX295TAG FAQ
1.How can I place an order for NCP706MX295TAG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP706MX295TAG 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 NCP706MX295TAG reliable?
The price and inventory of NCP706MX295TAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP706MX295TAG is usually 5 days.
3.What payment methods are accepted for NCP706MX295TAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP706MX295TAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP706MX295TAG?
NCP706MX295TAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP706MX295TAG 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 NCP706MX295TAG?
For technical support, including NCP706MX295TAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP706MX295TAG requirements.
6.How does Aetrix verify that NCP706MX295TAG is sourced from the original manufacturer or authorized distributors?
All NCP706MX295TAG 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 NCP706MX295TAG meets industry standards.
7.What is the process for return or replacement of NCP706MX295TAG?
All NCP706MX295TAG units undergo pre-shipment inspection (PSI). If there is an issue with NCP706MX295TAG, 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 NCP706MX295TAG part is unused and in its original packaging.
Return procedure for NCP706MX295TAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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