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onsemi NCP114BMX280TCG
- Part No.:
- NCP114BMX280TCG
- Manufacturer:
- onsemi
- Package:
- 4-UDFN Exposed Pad
- Datasheet:
-
NCP114BMX280TCG.pdf
- Description:
- IC REG LINEAR 2.8V 300MA 4UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,208
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Product details
Overview
NCP114BMX280TCG from onsemi is a 300 mA CMOS low-dropout linear regulator delivering 2.8 V output with ±1% accuracy at room temperature, 135 mV typical dropout at full load, and 75 dB PSRR at 1 kHz-designed for noise-sensitive, space-constrained battery-powered applications such as smartphones and portable medical devices.
For engineers reviewing the NCP114BMX280TCG datasheet, pinout, applications, or equivalent options, key selection criteria include quiescent current (50 µA typ), enable threshold (0.9 V high / 0.4 V low), thermal shutdown (160 °C), stability with 1 µF ceramic output capacitor, and UDFN4 package compatibility with high-density PCB layouts.
Technical Context
The NCP114BMX280TCG employs a PMOS pass transistor with dynamic quiescent current adjustment to minimize IQ in no-load conditions while maintaining regulation under 300 mA load. Its internal bandgap reference and active discharge–disabled architecture (B-series) ensure stable 2.8 V output across −40 °C to +85 °C junction temperature.
It integrates thermal shutdown (160 °C trip, 20 °C hysteresis) and current limiting (600 mA typ), operates from 1.7 V to 5.5 V input, and achieves 70 µVrms output noise (10 Hz–100 kHz) with 1 µF X7R output capacitor-optimized for RF and analog subsystems requiring clean, low-noise bias rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8 V ±1% at 25 °C; ensures precise core/bias rail for 2.8 V logic or RF ICs without external feedback. |
| Max Output Current | 300 mA continuous; supports moderate-power peripherals like Bluetooth baseband or sensor hubs. |
| Dropout Voltage | 135 mV typical at 300 mA; enables operation down to VIN = 2.935 V, extending battery runtime in single-cell Li-ion systems. |
| Quiescent Current | 50 µA typical at no load; critical for multi-day standby in always-on wearable sensors. |
| PSRR | 75 dB at 1 kHz; suppresses switching noise from adjacent DC-DC converters feeding shared input rails. |
| Stability | Guaranteed with ≥1 µF ceramic output capacitor (X5R/X7R); eliminates need for tantalum or large bulk caps. |
| Enable Threshold | VEN_HI = 0.9 V, VEN_LO = 0.4 V; compatible with 1.8 V/3.3 V GPIO without level-shifting. |
Pinout & Package
Package: UDFN4 (1.0 mm × 1.0 mm, 0.65 mm pitch), Pb-free, exposed thermal pad connected to GND. Optimized for thermal dissipation in ultra-thin portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input voltage supply | Accepts 1.7–5.5 V; requires local 1 µF ceramic decoupling to ground for transient immunity. |
| 2 (GND) | Power ground reference | Primary return path; exposed pad must be soldered to large PCB ground plane for thermal management. |
| 3 (EN) | Enable control input | Logic-high (>0.9 V) enables regulation; logic-low (<0.4 V) disables output and reduces IQ to 0.01 µA. |
| 4 (OUT) | Regulated output | Delivers stable 2.8 V; requires ≥1 µF ceramic capacitor to ground for loop stability and load transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Dynamic IQ adjustment | Maintains 50 µA quiescent current at no load and scales only as needed under load-extending battery life in intermittent-use devices. |
| Low-noise regulation | 70 µVrms integrated output noise (10 Hz–100 kHz) enables direct powering of ADC references and RF synthesizers. |
| Robust protection suite | Thermal shutdown (160 °C), current limit (600 mA typ), and short-circuit tolerance prevent field failures in unattended deployments. |
| Ultra-small footprint | UDFN4 1.0×1.0 mm package saves >60% board area vs. SOT-23, enabling miniaturization in hearing aids and smart patches. |
| Wide input range | 1.7–5.5 V operation supports single-cell Li-ion (2.7–4.2 V), LiFePO₄ (2.0–3.6 V), and dual-cell alkaline inputs without pre-regulation. |
Applications
| Smartphone Power Management | Wireless Audio SoC Biasing |
|---|---|
Use Scenario: Supplying 2.8 V bias to Bluetooth 5.0 baseband processor and RF transceiver in compact smartphone mainboard. IC Role / Device Role / Timing Role: Primary LDO for noise-sensitive RF section, placed adjacent to SoC to minimize trace inductance. Use Value: 75 dB PSRR rejects noise from nearby PMIC switching regulators; 135 mV dropout preserves runtime as battery discharges below 3.0 V. |
Use Scenario: Providing clean 2.8 V power to DAC and Class-D amplifier in true wireless stereo (TWS) earbud charging case. IC Role / Device Role / Timing Role: Low-noise post-regulator after buck converter, decoupled with 1 µF X7R ceramic. Use Value: 70 µVrms output noise prevents audible hiss; 50 µA IQ extends case standby time to >30 days between charges. |
| Portable ECG Monitor | IoT Sensor Node MCU Core Rail |
Use Scenario: Powering 2.8 V analog front-end (AFE) and microcontroller in handheld ECG device with 7-day battery life target. IC Role / Device Role / Timing Role: Precision LDO for AFE reference and signal chain, isolated from digital switching noise. Use Value: ±1% output accuracy ensures consistent gain calibration; thermal shutdown protects against enclosure overheating during extended use. |
Use Scenario: Delivering 2.8 V core voltage to ARM Cortex-M4 MCU in battery-powered environmental sensor node. IC Role / Device Role / Timing Role: Always-on LDO enabled by MCU GPIO, supporting deep-sleep modes with sub-µA system leakage. Use Value: 0.01 µA shutdown current minimizes quiescent drain; UDFN4 footprint allows placement within 2 mm of MCU VDD pins. |
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 | 2.8 V fixed, 200 mA max, 120 mV dropout at 200 mA, 1 µA IQ, SOT-25 package | Lower current capability; better IQ for ultra-low-power sleep modes but insufficient for 300 mA burst loads | Select when peak load ≤200 mA and standby IQ <1 µA is mandatory; not suitable for full-power Bluetooth transmission. |
| Richtek RT9013-28GB | 2.8 V fixed, 300 mA max, 250 mV dropout at 300 mA, 60 µA IQ, SOT-23-5 package | Higher dropout limits usable input range; larger SOT-23-5 footprint increases layout area vs. UDFN4 | Choose if existing design uses SOT-23-5 footprints and 250 mV dropout is acceptable; avoid in space-constrained wearables. |
Compared with XC6210B282MR-G and RT9013-28GB, the NCP114BMX280TCG uniquely balances 300 mA delivery, 135 mV dropout, 50 µA IQ, and 1.0×1.0 mm UDFN4 packaging-making it optimal for next-generation compact, battery-intensive edge devices where thermal density and runtime are co-constrained.
Availability
NCP114BMX280TCG is available at Aetrix Electronics and suitable for smartphone power management, wireless audio SoC biasing, portable ECG monitors, and IoT sensor node MCU core rails requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for NCP114BMX280TCG 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 specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.
The NCP114 series is part of onsemi's precision analog LDO portfolio, engineered specifically for battery-powered portable electronics demanding ultra-low IQ, low noise, and small-footprint regulation without sacrificing robustness or accuracy.
FAQ
What is the maximum input voltage rating for the NCP114BMX280TCG?
The NCP114BMX280TCG has an absolute maximum input voltage rating of 6 V. Operation is specified over 1.7 V to 5.5 V, and exceeding 6 V risks permanent damage per the Absolute Maximum Ratings table. For reliable long-term performance, maintain VIN ≤5.5 V in normal operation.
Does the NCP114BMX280TCG include active output discharge functionality?
No, the NCP114BMX280TCG does not include active output discharge. It belongs to the "B" series (as indicated by the "B" in the part number), which omits the internal 100 Ω discharge FET present in "A" series variants like NCP114AMX280TCG. When disabled, the output floats rather than being pulled to GND.
What output capacitor value and type are required for stable operation of the NCP114BMX280TCG?
The NCP114BMX280TCG is stable with a minimum 1 µF ceramic capacitor (X5R or X7R dielectric) placed close to the OUT pin. The datasheet confirms stability down to 0.22 µF accounting for DC bias and temperature effects, but 1 µF is the recommended nominal value for robust transient response and PSRR performance.
What is the thermal resistance (RJA) of the NCP114BMX280TCG in its UDFN4 package?
The NCP114BMX280TCG in UDFN4 package has a typical junction-to-ambient thermal resistance (RJA) of 170 °C/W when mounted on a 1 oz FR-4 PCB with 645 mm² copper area. With enhanced thermal pads (e.g., 2 oz Cu, larger ground plane), RJA can improve to ~140 °C/W, directly increasing allowable power dissipation.
How does the enable pin (EN) behave during power-up and shutdown sequences?
The EN pin of the NCP114BMX280TCG features an internal 300 nA pull-down, ensuring default disable on power-up if left floating. Driving EN above 0.9 V enables regulation; pulling EN below 0.4 V disables output and reduces supply current to 0.01 µA. No external pull-up is required unless fast, deterministic turn-on is needed.
NCP114BMX280TCG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 4-UDFN 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):
- 0.23V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 95 µA
- Current - Supply (Max):
- -
- PSRR:
- 75dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-UDFN (1.0x1.0)
NCP114BMX280TCG FAQ
1.How can I place an order for NCP114BMX280TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP114BMX280TCG 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 NCP114BMX280TCG reliable?
The price and inventory of NCP114BMX280TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP114BMX280TCG is usually 5 days.
3.What payment methods are accepted for NCP114BMX280TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP114BMX280TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP114BMX280TCG?
NCP114BMX280TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP114BMX280TCG 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 NCP114BMX280TCG?
For technical support, including NCP114BMX280TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP114BMX280TCG requirements.
6.How does Aetrix verify that NCP114BMX280TCG is sourced from the original manufacturer or authorized distributors?
All NCP114BMX280TCG 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 NCP114BMX280TCG meets industry standards.
7.What is the process for return or replacement of NCP114BMX280TCG?
All NCP114BMX280TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCP114BMX280TCG, 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 NCP114BMX280TCG part is unused and in its original packaging.
Return procedure for NCP114BMX280TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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