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

onsemi NCP160AMX310TBG

Name: NCP160AMX310TBG
Brand: onsemi
SKU: NCP160AMX310TBG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: NCP160AMX310TBG

Manufacturer:: onsemi

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

Package:: 4-XDFN Exposed Pad

Datasheet:: NCP160AMX310TBG.pdf

Description:: IC REG LINEAR 3.1V 250MA 4XDFN

Quantity:: RFQ Add To RFQ list

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Product details

Overview

NCP160AMX310TBG from onsemi is a 250 mA ultra-low-noise, high-PSRR LDO regulator with fixed 3.1 V output, designed for RF and analog circuits in space-constrained portable devices. It delivers ±2% output accuracy over load/temperature, 85 mV dropout at 250 mA, 98 dB PSRR at 1 kHz, and 10 µV_RMS output noise (10 Hz–100 kHz), enabling clean power for smartphone camera modules and wireless transceivers.

For engineers reviewing the NCP160AMX310TBG datasheet, pinout, applications, or equivalent options, key selection criteria include its XDFN4 1 mm × 1 mm package, active discharge capability, 18 µA quiescent current, and compatibility with 1 µF ceramic input/output capacitors - critical for battery-powered RF subsystems requiring low EMI and fast transient response.

Technical Context

The NCP160AMX310TBG integrates a PMOS pass transistor with thermal shutdown (160°C trip), current limiting (700 mA typ.), and enable-controlled active discharge (280 Ω). Its bandgap reference and soft-start circuit ensure stable startup under varying load conditions without external compensation.

It operates across 1.9 V to 5.5 V input range and maintains regulation down to 85 mV dropout at full 250 mA load for 3.1 V output - verified per Electrical Characteristics Table on page 4 of Rev. 21 datasheet. The device supports both fast line/load transients (±1 mV line, ±40 mV load) and robust ESD protection (2 kV HBM).

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 3.1 V ±2% - ensures precise biasing for RF amplifiers and ADC references without external feedback.
Max Output Current	250 mA - sufficient to power dual-band Wi-Fi/BT coexistence ICs or image sensor analog front-ends.
Dropout Voltage	85 mV at 250 mA - enables operation from single-cell Li-ion (3.2 V min) while maintaining regulation.
PSRR	98 dB at 1 kHz - suppresses switching noise from adjacent DC-DC converters in PMIC-based systems.
Output Noise	10 µV_RMS (10 Hz–100 kHz) - meets stringent SNR requirements for high-resolution audio codecs and RF LNAs.
Quiescent Current	18 µA typ. - extends battery life in always-on sensor nodes and standby modes of mobile SoCs.
Enable Threshold	V_ENH = 1.2 V, V_ENL = 0.4 V - compatible with standard GPIO logic levels for system-level power sequencing.

Pinout & Package

XDFN4 package: 1 mm × 1 mm × 0.4 mm, exposed pad (EPAD) for thermal dissipation; RoHS-compliant, Pb-free.

Pin/Terminal	Circuit Role	Design Meaning
IN	Input voltage supply	Accepts 1.9–5.5 V; requires 1 µF ceramic capacitor placed adjacent to minimize trace inductance.
OUT	Regulated output	Delivers stable 3.1 V; must be bypassed with 1 µF ceramic capacitor near pin for PSRR and transient stability.
EN	Chip enable control	Active-high logic: >1.2 V enables regulator; <0.4 V disables it and activates 280 Ω active discharge path.
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 output noise enables use in RF receiver chains where phase noise directly impacts sensitivity.
High PSRR	98 dB at 1 kHz suppresses ripple from noisy buck converters feeding baseband processors.
Active output discharge	280 Ω internal resistor discharges OUT to GND during disable, preventing floating voltages in multi-rail systems.
Low dropout	85 mV dropout at 250 mA allows efficient operation from aging batteries or low-headroom supplies.
Thermal shutdown	160°C trip with 140°C hysteresis protects against sustained overload or poor PCB heatsinking.

Applications

Smartphone Camera Module	Wi-Fi 6/6E Transceiver
Use Scenario: Powering CMOS image sensor analog supply and ISP core voltage in compact smartphone rear camera stacks. IC Role / Device Role / Timing Role: Low-noise LDO providing clean 3.1 V bias to image sensor analog front-end and ADC reference. Use Value: 10 µV_RMS noise prevents fixed-pattern noise in high-ISO captures; 98 dB PSRR isolates sensor from SoC switching noise.	Use Scenario: Supplying RF power amplifier and transceiver analog rails in dual-band 2.4 GHz + 5 GHz Wi-Fi modules. IC Role / Device Role / Timing Role: Regulating 3.1 V for RF PA bias and mixer LO generation circuitry. Use Value: 85 mV dropout enables operation from shared 3.3 V PMIC rail; fast load transient response (<40 mV deviation) maintains signal integrity during burst transmission.
Bluetooth LE Audio Earbud	Industrial IoT Sensor Node
Use Scenario: Delivering regulated 3.1 V to ultra-low-power Bluetooth audio codec and MEMS microphone preamp. IC Role / Device Role / Timing Role: Primary analog supply LDO with enable control synchronized to audio playback state. Use Value: 18 µA quiescent current minimizes standby drain; active discharge ensures rapid power-down between audio frames.	Use Scenario: Powering precision analog sensor interface (e.g., 24-bit delta-sigma ADC) in battery-operated environmental monitoring nodes. IC Role / Device Role / Timing Role: Stable reference voltage source for ADC and op-amp signal conditioning chain. Use Value: ±2% output accuracy over −40°C to +125°C eliminates calibration drift; 1 µF ceramic capacitor compatibility reduces BOM count.

Smartphone Camera Module

Wi-Fi 6/6E Transceiver

Use Scenario: Powering CMOS image sensor analog supply and ISP core voltage in compact smartphone rear camera stacks.

IC Role / Device Role / Timing Role: Low-noise LDO providing clean 3.1 V bias to image sensor analog front-end and ADC reference.

Use Value: 10 µV_RMS noise prevents fixed-pattern noise in high-ISO captures; 98 dB PSRR isolates sensor from SoC switching noise.

Use Scenario: Supplying RF power amplifier and transceiver analog rails in dual-band 2.4 GHz + 5 GHz Wi-Fi modules.

IC Role / Device Role / Timing Role: Regulating 3.1 V for RF PA bias and mixer LO generation circuitry.

Use Value: 85 mV dropout enables operation from shared 3.3 V PMIC rail; fast load transient response (<40 mV deviation) maintains signal integrity during burst transmission.

Bluetooth LE Audio Earbud

Industrial IoT Sensor Node

Use Scenario: Delivering regulated 3.1 V to ultra-low-power Bluetooth audio codec and MEMS microphone preamp.

IC Role / Device Role / Timing Role: Primary analog supply LDO with enable control synchronized to audio playback state.

Use Value: 18 µA quiescent current minimizes standby drain; active discharge ensures rapid power-down between audio frames.

Use Scenario: Powering precision analog sensor interface (e.g., 24-bit delta-sigma ADC) in battery-operated environmental monitoring nodes.

IC Role / Device Role / Timing Role: Stable reference voltage source for ADC and op-amp signal conditioning chain.

Use Value: ±2% output accuracy over −40°C to +125°C eliminates calibration drift; 1 µF ceramic capacitor compatibility reduces BOM count.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS7A2031PDBVR	3.1 V fixed, 300 mA, 6.5 µV_RMS noise, no active discharge, SOT-23-5 package (2.9 mm × 1.6 mm)	Larger footprint; lacks active discharge - requires external circuit for fast discharge if needed.	Select when lowest noise is priority and board space allows larger package; verify thermal performance at 250 mA.
MCP1826T-3102E/MB	3.1 V fixed, 300 mA, 45 µV_RMS noise, no active discharge, SOT-23-5	Higher noise degrades RF/analog performance; same package size but inferior PSRR (70 dB @ 1 kHz).	Consider only for cost-sensitive non-RF applications where 10 µV_RMS noise is not required.

Compared with TPS7A2031PDBVR and MCP1826T-3102E/MB, the NCP160AMX310TBG offers superior RF-grade noise performance and integrated active discharge in a smaller 1 mm × 1 mm XDFN4 package - making it optimal for miniaturized, high-fidelity wireless and imaging subsystems.

Availability

NCP160AMX310TBG is available at Aetrix Electronics and suitable for smartphone camera modules, Wi-Fi 6E transceivers, and Bluetooth LE audio earbuds requiring stable component supply with guaranteed long-term availability.

Supply support for NCP160AMX310TBG 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 communication markets.

The NCP160 product line targets ultra-low-noise, high-PSRR LDO regulation for RF and analog subsystems in battery-powered portable electronics - emphasizing minimal footprint, low quiescent current, and robust transient response.

FAQ

What is the maximum input voltage rating for the NCP160AMX310TBG?

The NCP160AMX310TBG has an absolute maximum input voltage rating of 6 V, with recommended operating range from 1.9 V to 5.5 V. Exceeding 6 V may cause permanent damage. This rating is specified in the Absolute Maximum Ratings table (page 3) and validated across temperature and process corners.

Does the NCP160AMX310TBG include active output discharge functionality?

Yes, the NCP160AMX310TBG includes active output discharge: when EN is pulled below 0.4 V, an internal 280 Ω resistor connects OUT to GND, discharging the output capacitor rapidly. This feature is confirmed in the PIN FUNCTION DESCRIPTION (page 2) and APPLICATIONS INFORMATION section (page 14).

What ceramic capacitor value is required for stable operation of the NCP160AMX310TBG?

The NCP160AMX310TBG is designed to remain stable with a minimum 1 µF X7R or X5R ceramic capacitor on both input and output pins. The datasheet confirms stability down to 0.7 µF effective capacitance (accounting for DC bias and temperature effects), but 1 µF is the recommended nominal value for guaranteed performance.

What is the thermal resistance (R_JA) of the NCP160AMX310TBG in its XDFN4 package?

The NCP160AMX310TBG in XDFN4 package has a junction-to-ambient thermal resistance (R_JA) of 198.1 °C/W, measured per JEDEC JESD51-7 standard on a standard test board. This value assumes proper PCB copper area and EPAD connection to ground - detailed in Figure 54 (page 15) of the datasheet.

Is the NCP160AMX310TBG RoHS-compliant and lead-free?

Yes, the NCP160AMX310TBG is RoHS-compliant and lead-free, as explicitly stated in the Features section (page 1) and ORDERING INFORMATION table (page 17), which lists "(Pb-Free)" for the XDFN4 package variant.

NCP160AMX310TBG 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):: 3.1V

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)

NCP160AMX310TBG FAQ

1.How can I place an order for NCP160AMX310TBG through Aetrix?

Please submit a Request for Quotation (RFQ) for NCP160AMX310TBG 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 NCP160AMX310TBG reliable?

The price and inventory of NCP160AMX310TBG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP160AMX310TBG is usually 5 days.

3.What payment methods are accepted for NCP160AMX310TBG?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP160AMX310TBG transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for NCP160AMX310TBG?

NCP160AMX310TBG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your NCP160AMX310TBG 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 NCP160AMX310TBG?

For technical support, including NCP160AMX310TBG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP160AMX310TBG requirements.

6.How does Aetrix verify that NCP160AMX310TBG is sourced from the original manufacturer or authorized distributors?

All NCP160AMX310TBG 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 NCP160AMX310TBG meets industry standards.

7.What is the process for return or replacement of NCP160AMX310TBG?

All NCP160AMX310TBG units undergo pre-shipment inspection (PSI). If there is an issue with NCP160AMX310TBG, 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 NCP160AMX310TBG part is unused and in its original packaging.

Return procedure for NCP160AMX310TBG:

1.Submit a request within 90 days.

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

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