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onsemi NCP4586DMU14TCG
- Part No.:
- NCP4586DMU14TCG
- Manufacturer:
- onsemi
- Package:
- 4-UDFN Exposed Pad
- Datasheet:
-
NCP4586DMU14TCG.pdf
- Description:
- IC REG LINEAR 1.4V 150MA 4UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,412
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Product details
Overview
NCP4586DMU14TCG from onsemi is a 150 mA, low-noise, low-dropout linear regulator with 1.4 V fixed output voltage, 320 mV typical dropout at full load, ±1% output accuracy (for VOUT > 2 V; for 1.4 V, accuracy is ±20 mV), and 80 dB PSRR at 1 kHz - designed for space-constrained battery-powered portable electronics requiring stable, clean power.
For engineers reviewing the NCP4586DMU14TCG datasheet, pinout, applications, or equivalent options, key selection criteria include its UDFN4 1.0×1.0 mm package, enable-pin polarity (active-high CE), auto-discharge capability, low 38 µA quiescent current, and compatibility with 0.47 µF ceramic output capacitors.
Technical Context
The NCP4586DMU14TCG implements a CMOS-based LDO architecture with internal reference, error amplifier, and pass transistor - optimized for low noise (30 µVRMS, 10 Hz–100 kHz) and high power supply rejection. It features current-foldback protection and operates across 1.7 V to 6.5 V input range.
Its enable logic is active-high (CE pin), and the D-series variant integrates an internal N-channel discharge transistor between VOUT and GND, enabling rapid output capacitor discharge during shutdown - critical for system-level power sequencing in portable devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.4 V ±20 mV (−40°C to +85°C); enables direct powering of 1.4 V logic rails or biasing of analog circuitry without external feedback. |
| Max Output Current | 150 mA continuous; supports moderate-power peripherals like sensors, RF front-ends, or MCU I/O banks in compact systems. |
| Dropout Voltage | Typ. 410 mV at 150 mA (for 1.4 V output); allows operation from single-cell Li-ion (3.0 V min) or two-cell alkaline (2.4 V min) with margin. |
| PSRR | 80 dB at 1 kHz; suppresses switching noise from upstream DC/DC converters, preserving signal integrity in ADCs or audio paths. |
| Quiescent Current | 38–58 µA (typ./max); minimizes battery drain in always-on monitoring functions such as real-time clocks or wake-on-event circuits. |
| Output Noise | 30 µVRMS (10 Hz–100 kHz); suitable for noise-sensitive analog blocks including precision references or low-noise amplifiers. |
| Stability | Stable with ≥0.47 µF ceramic output capacitor; eliminates need for bulky tantalum or electrolytic caps, reducing board area and cost. |
Pinout & Package
Package: UDFN4 (1.0 mm × 1.0 mm, 0.65 mm pitch, exposed thermal pad), case 517BR, Pb-free. Pin 1 = VIN, Pin 2 = GND, Pin 3 = CE, Pin 4 = VOUT.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Input supply connection | Accepts 1.7–6.5 V; requires local 470 nF ceramic decoupling to minimize line transients and EMI susceptibility. |
| GND (Pin 2) | Power ground reference | Shared return path for input/output capacitors and load; must be low-impedance and thermally coupled to PCB copper pour. |
| CE (Pin 3) | Enable control input (active-high) | Drives regulator ON when ≥1.0 V; pulls down via 0.4 µA internal current source when disabled - simplifies control interface. |
| VOUT (Pin 4) | Regulated output | Delivers 1.4 V ±20 mV; connects directly to load; internal discharge transistor (D-series) rapidly collapses voltage during disable. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small UDFN4 package | 1.0 mm × 1.0 mm footprint with thermal pad - ideal for ultra-dense PCBs in wearables and hearing aids. |
| Active-high enable with auto-discharge | Eliminates external discharge resistor and timing circuitry; ensures safe, fast VOUT ramp-down for system reset compliance. |
| Low-noise, high-PSRR regulation | 30 µVRMS noise + 80 dB PSRR at 1 kHz - preserves SNR in precision analog signal chains without additional filtering. |
| Low-IQ and standby current | 38 µA operating / 0.1–1 µA standby - extends battery life in intermittent-sensing applications (e.g., IoT node sleep modes). |
| Robust thermal performance | RJA = 250°C/W (UDFN4); supports 150 mA load at +85°C ambient with minimal derating when using recommended PCB copper area. |
Applications
| Portable Medical Sensors | Wireless Earbud Audio Bias |
|---|---|
|
Use Scenario: Powering ultra-low-power biosensor analog front-end (AFE) in disposable glucose monitors or pulse oximeters. IC Role / Device Role / Timing Role: Provides clean, stable 1.4 V reference and bias voltage for op-amps and ADC drivers. Use Value: 30 µVRMS noise and ±20 mV output tolerance ensure <1 LSB error in 12-bit medical-grade ADC conversions. |
Use Scenario: Supplying bias voltage to Class-D amplifier input stage and MEMS microphone preamp in true wireless stereo (TWS) earbuds. IC Role / Device Role / Timing Role: Delivers low-noise 1.4 V rail isolated from noisy Bluetooth SoC supply domains. Use Value: 80 dB PSRR rejects 2.4 GHz RF coupling and DC/DC ripple, preventing audible artifacts in audio playback. |
| Industrial Smart Tags | Camera Module Power Sequencing |
|
Use Scenario: Regulating power for NFC-enabled temperature/humidity sensor tags operating from coin-cell batteries. IC Role / Device Role / Timing Role: Supplies regulated 1.4 V to microcontroller core and RF transceiver during periodic wake-up bursts. Use Value: 38 µA quiescent current + auto-discharge enables >2-year shelf life on CR2032 while ensuring reliable cold-start behavior. |
Use Scenario: Powering image sensor analog core and PLL circuitry in smartphone front-facing camera modules. IC Role / Device Role / Timing Role: Provides precise 1.4 V bias with controlled startup/shutdown timing synchronized to sensor reset signals. Use Value: Active-high CE and integrated discharge transistor eliminate external MOSFETs, reducing BOM count and layout complexity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-1402E/TT | 150 mA, 1.4 V fixed, SOT-23-3; no enable pin or auto-discharge; higher dropout (550 mV @ 150 mA). | Lacks CE control and fast discharge - unsuitable for sequenced power-down or low-IQ deep-sleep use cases. | Choose only if board space permits larger SOT-23-3 and system does not require enable or discharge functionality. |
| Torex XC6210B142MR-G | 150 mA, 1.4 V fixed, SOT-25; active-high CE but no auto-discharge; 25 µA IQ; PSRR = 65 dB @ 1 kHz. | Lower quiescent current but reduced noise suppression and missing discharge path - may require external discharge circuit. | Prefer when ultra-low IQ dominates over PSRR/noise, and discharge can be handled externally or is non-critical. |
Availability
NCP4586DMU14TCG is available at Aetrix Electronics and suitable for portable medical sensors, wireless earbud audio bias, industrial smart tags, and camera module power sequencing requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for NCP4586DMU14TCG 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 innovation for automotive, industrial, cloud, medical, and IoT applications.
The NCP4586DMU14TCG belongs to onsemi's NCP4586 family of low-noise, low-IQ LDOs - engineered specifically for battery-powered portable electronics where size, efficiency, and signal integrity are critical.
FAQ
What is the output voltage tolerance of the NCP4586DMU14TCG over temperature?
The NCP4586DMU14TCG delivers 1.4 V output with ±20 mV tolerance over −40°C to +85°C ambient temperature. This specification is confirmed in the Electrical Characteristics table (page 4 of the datasheet) under "Output Voltage" for VOUT ≤ 2 V. The NCP4586DMU14TCG maintains this tight tolerance without external trimming, supporting precision analog loads.
Does the NCP4586DMU14TCG require an external discharge resistor?
No, the NCP4586DMU14TCG does not require an external discharge resistor. As a D-series variant, it integrates an internal N-channel transistor between VOUT and GND that activates during disable mode, providing fast, controlled output capacitor discharge. This feature is explicitly documented in the Application Information section (page 14) and block diagram (Figure 2).
What is the minimum input voltage required for the NCP4586DMU14TCG to regulate at 1.4 V output?
The NCP4586DMU14TCG requires a minimum input voltage of 1.7 V to operate, per the Absolute Maximum Ratings and Electrical Characteristics tables. To maintain regulation at 150 mA load, VIN must exceed VOUT by at least the dropout voltage - typ. 410 mV for 1.4 V output - so VIN ≥ 1.81 V is required for full-load stability.
Can the NCP4586DMU14TCG be used with ceramic output capacitors smaller than 0.47 µF?
No - the NCP4586DMU14TCG is specified and characterized for stability with ≥0.47 µF ceramic output capacitors, as stated in the Features list (page 1) and Application Information (page 14). Using smaller values risks oscillation or degraded transient response; the device is not guaranteed stable with capacitors below this value.
Is the NCP4586DMU14TCG pin-compatible with other variants in the NCP4586 family?
Yes, all NCP4586 variants in the UDFN4 package - including NCP4586DMU12TCG, NCP4586DMU14TCG, and NCP4586DMU18TCG - share identical pinout (VIN, GND, CE, VOUT) and footprint. The only differences are output voltage and marking code; no PCB redesign is needed when substituting within the same package type.
NCP4586DMU14TCG 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):
- 6.5V
- Voltage - Output (Min/Fixed):
- 1.4V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 58 µA
- Current - Supply (Max):
- -
- PSRR:
- 80dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-UDFN (1.0x1.0)
NCP4586DMU14TCG FAQ
1.How can I place an order for NCP4586DMU14TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP4586DMU14TCG 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 NCP4586DMU14TCG reliable?
The price and inventory of NCP4586DMU14TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP4586DMU14TCG is usually 5 days.
3.What payment methods are accepted for NCP4586DMU14TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP4586DMU14TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP4586DMU14TCG?
NCP4586DMU14TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP4586DMU14TCG 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 NCP4586DMU14TCG?
For technical support, including NCP4586DMU14TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP4586DMU14TCG requirements.
6.How does Aetrix verify that NCP4586DMU14TCG is sourced from the original manufacturer or authorized distributors?
All NCP4586DMU14TCG 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 NCP4586DMU14TCG meets industry standards.
7.What is the process for return or replacement of NCP4586DMU14TCG?
All NCP4586DMU14TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCP4586DMU14TCG, 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 NCP4586DMU14TCG part is unused and in its original packaging.
Return procedure for NCP4586DMU14TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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