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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

onsemi NCP160AMX275TBG

Name: NCP160AMX275TBG
Brand: onsemi
SKU: NCP160AMX275TBG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: NCP160AMX275TBG

Manufacturer:: onsemi

Category:: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Package:: 4-XDFN Exposed Pad

Datasheet:: NCP160AMX275TBG.pdf

Description:: IC REG LINEAR 2.75V 250MA 4XDFN

Quantity:: RFQ Add To RFQ list

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Product details

Overview

NCP160AMX275TBG from onsemi is a 250 mA ultra-low-noise, high-PSRR LDO regulator with fixed 2.75 V output, 80 mV dropout at full load, ±2% output accuracy over load/temperature, and 10 µV_RMS integrated noise (10 Hz–100 kHz). It targets RF and analog power rails in smartphones, wireless LAN modules, and camera sensor supplies where clean, stable voltage is critical.

For engineers reviewing the NCP160AMX275TBG datasheet, pinout, applications, or equivalent options, key selection criteria include its 98 dB PSRR at 1 kHz, 18 µA quiescent current, active discharge capability, compatibility with 1 µF ceramic input/output capacitors, and XDFN-4 1 mm × 1 mm package with thermal pad.

Technical Context

The NCP160AMX275TBG uses a PMOS pass transistor architecture enabling low dropout and inherent reverse-current protection. Its bandgap reference and integrated soft-start ensure stable startup under varying load conditions without external components.

It features active discharge (280 Ω pull-down when disabled), thermal shutdown (160°C trip, 140°C reset), and overcurrent protection (700 mA typical limit). The EN pin operates with 1.2 V enable threshold and 0.4 V disable threshold, supporting precise system-level power sequencing.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 2.75 V ±2% - ensures accurate biasing for 2.7–2.8 V analog/RF ICs without external feedback.
Max Output Current	250 mA - sufficient for powering RF transceivers, image sensors, or ADC/DAC analog sections.
Dropout Voltage	80 mV at 250 mA - enables operation from 2.83 V input, ideal for single-cell Li-ion or Li-poly systems.
PSRR	98 dB at 1 kHz - suppresses switching noise from adjacent DC-DC converters feeding noisy supply rails.
Output Noise	10 µV_RMS (10 Hz–100 kHz) - meets stringent spectral purity requirements of RF front-ends and precision analog circuits.
Quiescent Current	18 µA typical - extends battery life in always-on sensor or standby RF receiver applications.
Enable Threshold	V_ENH = 1.2 V, V_ENL = 0.4 V - compatible with standard 1.8 V/3.3 V GPIO logic without level-shifting.

Pinout & Package

XDFN-4 1 mm × 1 mm × 0.4 mm package with exposed thermal pad (EPAD) for enhanced thermal dissipation; RoHS-compliant, Pb-free.

Pin/Terminal	Circuit Role	Design Meaning
IN	Input voltage supply	Accepts 1.9–5.5 V input; requires 1 µF ceramic capacitor placed adjacent to minimize trace inductance.
OUT	Regulated output	Delivers stable 2.75 V; must be bypassed with 1 µF ceramic capacitor near the pin for stability and transient response.
EN	Enable control	Active-high logic input; <0.4 V disables regulator and activates 280 Ω active discharge path to GND.
GND	Ground reference	Common return path; EPAD must be connected to PCB ground plane to reduce thermal resistance (R_JA = 198.1 °C/W).

Key Features

Feature	Design Value
Ultra-low noise	10 µV_RMS (10 Hz–100 kHz) - preserves signal integrity in RF receivers and high-resolution ADCs.
High PSRR	98 dB at 1 kHz - rejects ripple from shared buck converter outputs without additional filtering.
Active output discharge	280 Ω internal pull-down - ensures rapid V_OUT decay during shutdown, preventing latch-up in downstream circuitry.
Low quiescent current	18 µA typical - minimizes standby power loss in battery-powered IoT and mobile devices.
Stable with 1 µF ceramics	No ESR requirement - simplifies BOM and layout by eliminating need for tantalum or polymer capacitors.

Applications

Smartphone RF Front-End	Wireless LAN (Wi-Fi 6/6E) Transceiver
Use Scenario: Powering 2.75 V LNA and mixer stages in multi-band smartphone RF modules. IC Role / Device Role / Timing Role: Low-noise local power rail regulator delivering clean bias to sensitive RF components. Use Value: 10 µV_RMS noise and 98 dB PSRR prevent reciprocal mixing and maintain EVM performance under noisy SoC supply conditions.	Use Scenario: Supplying 2.75 V to Wi-Fi 6E transceiver ICs operating in 5–6 GHz bands. IC Role / Device Role / Timing Role: Dedicated analog supply regulator decoupled from digital core rails. Use Value: 80 mV dropout allows operation from 2.83 V input, enabling direct connection to shared 3.0 V buck output while preserving headroom.
Industrial Camera Sensor Bias	Portable Medical Imaging ADC Reference
Use Scenario: Providing regulated 2.75 V to CMOS image sensor analog blocks (e.g., column amplifiers, CDS circuits). IC Role / Device Role / Timing Role: Precision analog voltage source with fast load transient response. Use Value: ±2% accuracy and <±40 mV load transient deviation ensure consistent pixel gain calibration across temperature and illumination conditions.	Use Scenario: Supplying reference voltage domain for 16-bit+ medical-grade SAR ADCs in handheld ultrasound or ECG devices. IC Role / Device Role / Timing Role: Ultra-low-noise analog supply isolating ADC reference from digital switching noise. Use Value: 10 µV_RMS noise directly limits effective resolution-enabling >15.5 ENOB in battery-operated portable systems.

Smartphone RF Front-End

Wireless LAN (Wi-Fi 6/6E) Transceiver

Use Scenario: Powering 2.75 V LNA and mixer stages in multi-band smartphone RF modules.

IC Role / Device Role / Timing Role: Low-noise local power rail regulator delivering clean bias to sensitive RF components.

Use Value: 10 µV_RMS noise and 98 dB PSRR prevent reciprocal mixing and maintain EVM performance under noisy SoC supply conditions.

Use Scenario: Supplying 2.75 V to Wi-Fi 6E transceiver ICs operating in 5–6 GHz bands.

IC Role / Device Role / Timing Role: Dedicated analog supply regulator decoupled from digital core rails.

Use Value: 80 mV dropout allows operation from 2.83 V input, enabling direct connection to shared 3.0 V buck output while preserving headroom.

Industrial Camera Sensor Bias

Portable Medical Imaging ADC Reference

Use Scenario: Providing regulated 2.75 V to CMOS image sensor analog blocks (e.g., column amplifiers, CDS circuits).

IC Role / Device Role / Timing Role: Precision analog voltage source with fast load transient response.

Use Value: ±2% accuracy and <±40 mV load transient deviation ensure consistent pixel gain calibration across temperature and illumination conditions.

Use Scenario: Supplying reference voltage domain for 16-bit+ medical-grade SAR ADCs in handheld ultrasound or ECG devices.

IC Role / Device Role / Timing Role: Ultra-low-noise analog supply isolating ADC reference from digital switching noise.

Use Value: 10 µV_RMS noise directly limits effective resolution-enabling >15.5 ENOB in battery-operated portable systems.

Equivalent & Alternatives

The following parts are listed as comparable options for similar LDO regulator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Torex XC6210B275MR-G	250 mA, 2.75 V fixed, 25 µA I_Q, no active discharge, 65 dB PSRR @ 1 kHz	Lacks active discharge and delivers lower PSRR - suitable only where fast V_OUT decay is not required and noise immunity is less critical.	Select when cost sensitivity outweighs PSRR/noise requirements and board space permits larger output capacitor for transient compensation.
Richtek RT9080AL-275GJ6F	300 mA, 2.75 V fixed, 22 µA I_Q, 90 dB PSRR @ 1 kHz, no active discharge	Higher current rating but missing active discharge and 8 dB lower PSRR - trades off noise rejection for marginally higher load capability.	Prefer for applications needing >250 mA headroom but tolerating reduced RF noise suppression and no controlled discharge.

Compared with NCP160AMX275TBG, the XC6210B275MR-G offers lower cost but sacrifices 33 dB PSRR and active discharge functionality, while the RT9080AL-275GJ6F provides extra current headroom at the expense of 8 dB PSRR and no discharge path-making NCP160AMX275TBG optimal for noise-critical RF/analog rails requiring fast, safe shutdown behavior.

Availability

NCP160AMX275TBG is available at Aetrix Electronics and suitable for smartphone RF front-end design, Wi-Fi 6E transceiver power management, and industrial camera sensor biasing requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for NCP160AMX275TBG 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, sensor, and connectivity solutions for automotive, industrial, cloud, and consumer markets.

The NCP160 product line is engineered specifically for ultra-low-noise, high-PSRR power delivery to RF and precision analog circuits-addressing noise coupling challenges in densely packed mobile and wireless systems.

FAQ

What is the maximum input voltage rating for the NCP160AMX275TBG?

The NCP160AMX275TBG has an absolute maximum input voltage rating of 6 V. Operation above 5.5 V is outside the recommended operating range and may compromise reliability or parametric performance. For sustained use, VIN should remain between 1.9 V and 5.5 V per the Electrical Characteristics table.

Does the NCP160AMX275TBG support active output discharge, and how does it function?

Yes, the NCP160AMX275TBG supports active output discharge. When the EN pin voltage falls below 0.4 V, the internal 280 Ω discharge resistor connects OUT to GND, rapidly discharging the output capacitor. This feature prevents unintended operation of downstream circuitry during power-down sequences and is confirmed in the datasheet's PIN FUNCTION DESCRIPTION and APPLICATIONS INFORMATION sections.

Can the NCP160AMX275TBG operate stably with only 1 µF ceramic capacitors on IN and OUT?

Yes, the NCP160AMX275TBG is explicitly designed and characterized to remain stable with 1 µF X7R/X5R ceramic capacitors on both input and output pins. The datasheet confirms no minimum ESR requirement and validates stability down to 0.7 µF effective capacitance, accommodating DC-bias derating in small-case MLCCs like 0201.

What is the thermal resistance (R_JA) of the NCP160AMX275TBG in its XDFN-4 package?

The NCP160AMX275TBG in the XDFN-4 package has a junction-to-ambient thermal resistance (R_JA) of 198.1 °C/W, measured per JEDEC JESD51-7 on a standard test board. This value assumes proper PCB copper area and thermal pad connection to ground; actual R_JA improves significantly with increased copper area and 2 oz Cu layers.

Is the NCP160AMX275TBG pin-compatible with other variants in the NCP160 family using the XDFN-4 package?

Yes, all NCP160 XDFN-4 variants-including NCP160AMX180TBG, NCP160AMX330TBG, and NCP160AMX514TBG-share identical pinout (IN, OUT, EN, GND), footprint, and thermal pad layout. Voltage selection is determined solely by internal trimming, enabling drop-in replacement across output voltages without PCB revision.

NCP160AMX275TBG 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):: 2.75V

Voltage - Output (Max):: -

Voltage Dropout (Max):: -

Current - Output:: 250mA

Current - Quiescent (Iq):: 23 µA

Current - Supply (Max):: -

PSRR:: 91dB ~ 48dB (100Hz ~ 100kHz)

Control Features:: Enable

Protection Features:: Over Current, Over Temperature, Soft Start

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 4-XDFN (1x1)

NCP160AMX275TBG FAQ

1.How can I place an order for NCP160AMX275TBG through Aetrix?

Please submit a Request for Quotation (RFQ) for NCP160AMX275TBG 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 NCP160AMX275TBG reliable?

The price and inventory of NCP160AMX275TBG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP160AMX275TBG is usually 5 days.

3.What payment methods are accepted for NCP160AMX275TBG?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP160AMX275TBG transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for NCP160AMX275TBG?

NCP160AMX275TBG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your NCP160AMX275TBG 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 NCP160AMX275TBG?

For technical support, including NCP160AMX275TBG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP160AMX275TBG requirements.

6.How does Aetrix verify that NCP160AMX275TBG is sourced from the original manufacturer or authorized distributors?

All NCP160AMX275TBG 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 NCP160AMX275TBG meets industry standards.

7.What is the process for return or replacement of NCP160AMX275TBG?

All NCP160AMX275TBG units undergo pre-shipment inspection (PSI). If there is an issue with NCP160AMX275TBG, 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 NCP160AMX275TBG part is unused and in its original packaging.

Return procedure for NCP160AMX275TBG:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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