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

onsemi NCP160AFCT250T2G

Name: NCP160AFCT250T2G
Brand: onsemi
SKU: NCP160AFCT250T2G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: NCP160AFCT250T2G

Manufacturer:: onsemi

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

Package:: 4-XFBGA, WLCSP

Datasheet:: NCP160AFCT250T2G.pdf

Description:: IC REG LINEAR 2.5V 250MA 4WLCSP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

NCP160AFCT250T2G from onsemi is a 250 mA ultra-low-noise, high-PSRR LDO regulator optimized for RF and analog circuits. It delivers fixed 2.5 V output with ±2% accuracy over load/temperature, 80 mV dropout at full load, 10 µV_RMS output noise, and 98 dB PSRR at 1 kHz - enabling clean power in smartphones, wireless LAN modules, and camera sensor rails.

For engineers reviewing the NCP160AFCT250T2G datasheet, pinout, applications, or equivalent options, key selection criteria include its active discharge capability, WLCSP4 0.64 mm × 0.64 mm × 0.33 mm package, 18 µA quiescent current, and compatibility with 1 µF ceramic input/output capacitors without ESR requirements.

Technical Context

The NCP160AFCT250T2G integrates a PMOS pass transistor with thermal shutdown (160°C trip), output current limiting (700 mA typ.), and an enable-controlled active discharge path (280 Ω). Its architecture supports stable operation with low-ESR ceramic capacitors and provides fast line/load transient response due to internal soft-start and high-bandwidth error amplifier.

Designed specifically for noise-sensitive RF/analog subsystems, it operates across 1.9–5.5 V input while maintaining ultra-low 10 µV_RMS integrated noise (10 Hz–100 kHz) and >90 dB PSRR up to 10 kHz - critical for powering PLLs, ADCs, and RF transceivers where supply ripple directly impacts SNR and phase noise.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 2.5 V ±2% - ensures precise biasing of 2.5 V analog rails without external feedback network.
Max Output Current	250 mA - sufficient for powering RF front-end ICs, image sensors, or low-power microcontrollers.
Dropout Voltage	80 mV at 250 mA - enables operation from 2.58 V input, extending battery runtime in single-cell Li-ion systems.
PSRR	98 dB at 1 kHz - suppresses switching noise from adjacent DC-DC converters feeding noisy system rails.
Output Noise	10 µV_RMS (10 Hz–100 kHz) - meets stringent spectral purity requirements for RF synthesizers and high-resolution ADCs.
Quiescent Current	18 µA typ. - minimizes standby power loss in always-on sensor or connectivity modules.
Enable Threshold	V_ENH = 1.2 V, V_ENL = 0.4 V - compatible with standard GPIO logic levels for host-controlled power sequencing.

Pinout & Package

Package: WLCSP4 (Case 567JZ), 0.64 mm × 0.64 mm × 0.33 mm, Pb-free/RoHS compliant, with exposed pad tied to GND for thermal relief.

Pin/Terminal	Circuit Role	Design Meaning
A1	IN	Input voltage supply pin - requires local 1 µF X7R/X5R ceramic capacitor for stability and transient suppression.
A2	OUT	Regulated 2.5 V output - must be bypassed with 1 µF ceramic capacitor; supports ≤2 Ω ESR for optimal transient response.
B1	EN	Active-high enable - drives device ON when >1.2 V; pulls output to GND via 280 Ω resistor when <0.4 V (active discharge).
B2	GND	Common ground reference - connects to PCB ground plane; exposed pad must be soldered to GND for thermal performance.

Key Features

Feature	Design Value
Ultra-low noise	10 µV_RMS (10 Hz–100 kHz) - preserves signal integrity in RF receivers and precision analog signal chains.
High PSRR	98 dB @ 1 kHz - rejects ripple from shared system power rails without additional filtering.
Active output discharge	280 Ω internal pull-down - prevents floating output during disable, ensuring controlled power-down sequencing.
Low quiescent current	18 µA typ. - extends battery life in portable devices operating in deep-sleep modes.
Stable with 1 µF ceramics	No minimum ESR requirement - eliminates need for bulky tantalum or electrolytic capacitors, reducing BOM cost and board area.

Applications

Smartphone RF Front-End	Wi-Fi 6/6E Transceiver Power
Use Scenario: Powers RF power amplifier bias and LNA stages in multi-band smartphone designs. IC Role / Device Role / Timing Role: Low-noise local LDO supplying clean 2.5 V to sensitive RF ICs adjacent to noisy baseband processors. Use Value: 98 dB PSRR prevents switching noise from SoC DC-DC converters from degrading EVM and ACLR performance.	Use Scenario: Supplies regulated 2.5 V to Wi-Fi 6E transceivers requiring ultra-low phase noise for 160 MHz channel operation. IC Role / Device Role / Timing Role: Dedicated analog rail LDO decoupling RF synthesizer VCO and mixer blocks. Use Value: 10 µV_RMS noise ensures minimal jitter contribution to RF carrier, preserving OFDMA subcarrier orthogonality.
Industrial Camera Sensor Bias	Medical Ultrasound Analog Front-End
Use Scenario: Provides stable 2.5 V bias to CMOS image sensor analog pixel arrays and column ADCs. IC Role / Device Role / Timing Role: Precision analog supply LDO placed near sensor die to minimize IR drop and noise coupling. Use Value: ±2% output accuracy and 80 mV dropout maintain regulation across battery discharge curves while minimizing heat generation.	Use Scenario: Powers time-of-flight ultrasound receiver channels requiring ultra-low noise for weak echo signal amplification. IC Role / Device Role / Timing Role: Ultra-low-noise LDO for analog signal chain powering low-noise amplifiers and programmable gain stages. Use Value: 10 µV_RMS noise floor enables detection of microvolt-level acoustic return signals without SNR degradation.

Smartphone RF Front-End

Wi-Fi 6/6E Transceiver Power

Use Scenario: Powers RF power amplifier bias and LNA stages in multi-band smartphone designs.

IC Role / Device Role / Timing Role: Low-noise local LDO supplying clean 2.5 V to sensitive RF ICs adjacent to noisy baseband processors.

Use Value: 98 dB PSRR prevents switching noise from SoC DC-DC converters from degrading EVM and ACLR performance.

Use Scenario: Supplies regulated 2.5 V to Wi-Fi 6E transceivers requiring ultra-low phase noise for 160 MHz channel operation.

IC Role / Device Role / Timing Role: Dedicated analog rail LDO decoupling RF synthesizer VCO and mixer blocks.

Use Value: 10 µV_RMS noise ensures minimal jitter contribution to RF carrier, preserving OFDMA subcarrier orthogonality.

Industrial Camera Sensor Bias

Medical Ultrasound Analog Front-End

Use Scenario: Provides stable 2.5 V bias to CMOS image sensor analog pixel arrays and column ADCs.

IC Role / Device Role / Timing Role: Precision analog supply LDO placed near sensor die to minimize IR drop and noise coupling.

Use Value: ±2% output accuracy and 80 mV dropout maintain regulation across battery discharge curves while minimizing heat generation.

Use Scenario: Powers time-of-flight ultrasound receiver channels requiring ultra-low noise for weak echo signal amplification.

IC Role / Device Role / Timing Role: Ultra-low-noise LDO for analog signal chain powering low-noise amplifiers and programmable gain stages.

Use Value: 10 µV_RMS noise floor enables detection of microvolt-level acoustic return signals without SNR degradation.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS7A2025PDQNR	2.5 V fixed, 300 mA, 6.5 µV_RMS noise, no active discharge, X2SON-4 package (0.8 mm × 0.8 mm)	Lacks active discharge; smaller noise but higher quiescent current (6.5 µA vs. 18 µA)	Preferred when lowest possible noise dominates over discharge control and board space is less constrained.
MCP1700T-2502E/MB	2.5 V fixed, 250 mA, 30 µV_RMS noise, no active discharge, SOT-23-3 package	Higher noise, larger footprint, no EN pin or active discharge	Suitable for cost-sensitive industrial applications where discharge control and ultra-low noise are not required.

Compared with TPS7A2025PDQNR and MCP1700T-2502E/MB, the NCP160AFCT250T2G uniquely combines active discharge, industry-leading 10 µV_RMS noise, and ultra-small WLCSP4 packaging - making it optimal for space-constrained, battery-powered RF systems demanding controlled power sequencing and spectral purity.

Availability

NCP160AFCT250T2G is available at Aetrix Electronics and suitable for smartphone RF front-ends, Wi-Fi 6E transceivers, and industrial camera sensor biasing requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for NCP160AFCT250T2G 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 (Nasdaq: ON) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.

The NCP160 series is designed specifically for ultra-low-noise, high-PSRR power delivery to RF and precision analog circuits - addressing noise-critical subsystems in mobile, wireless, and imaging platforms.

FAQ

What is the output voltage tolerance of the NCP160AFCT250T2G over temperature and load?

The NCP160AFCT250T2G maintains ±2% output voltage accuracy across −40°C to +125°C junction temperature and 0–250 mA load range. This specification is guaranteed by design and characterization per the datasheet's Electrical Characteristics table, ensuring reliable biasing for analog and RF circuits under real-world thermal and loading conditions. The NCP160AFCT250T2G achieves this using a precision bandgap reference and low-drift error amplifier.

Does the NCP160AFCT250T2G require an external capacitor on the EN pin for stable operation?

No, the NCP160AFCT250T2G does not require an external capacitor on the EN pin. Its enable input has internal hysteresis and a 200 nA pull-down current source, ensuring robust noise immunity and predictable turn-on/turn-off behavior without added components. The NCP160AFCT250T2G is specified to activate reliably when EN exceeds 1.2 V and deactivate below 0.4 V, even with direct connection to a microcontroller GPIO.

Can the NCP160AFCT250T2G be used with input voltages below 2.5 V?

No - the NCP160AFCT250T2G requires a minimum input voltage of 1.9 V, but to regulate 2.5 V output, VIN must exceed VOUT by at least the dropout voltage. At 250 mA load, dropout is 80 mV (typ.), so VIN must be ≥2.58 V for full-load regulation. Below that, the device enters dropout mode and output drops linearly with input. The NCP160AFCT250T2G is not intended for sub-2.58 V operation when 2.5 V regulation is required.

What is the purpose of the active discharge function in the NCP160AFCT250T2G?

The active discharge function in the NCP160AFCT250T2G rapidly pulls the OUT pin to GND through a 280 Ω internal resistor when EN falls below 0.4 V. This prevents floating or slowly decaying output voltages during power-down sequences - critical for preventing latch-up in downstream logic or avoiding unintended wake-up in systems with multiple power domains. The NCP160AFCT250T2G implements this without external components, simplifying layout and improving system reliability.

Is the NCP160AFCT250T2G compatible with 0201-size 1 µF ceramic capacitors?

Yes - the NCP160AFCT250T2G is explicitly designed to remain stable with 1 µF X5R/X7R ceramic capacitors, including compact 0201 packages. The datasheet confirms stability down to 0.7 µF effective capacitance, accounting for DC bias derating typical of small-case MLCCs. Layout best practices (placing C_IN/C_OUT adjacent to pins, using wide traces) ensure optimal transient response. The NCP160AFCT250T2G requires no ESR tuning, making 0201 ceramics a valid, space-saving choice.

NCP160AFCT250T2G Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: 4-XFBGA, WLCSP

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):: 2.5V

Voltage - Output (Max):: -

Voltage Dropout (Max):: 0.175V @ 250mA

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-WLCSP (0.64x0.64)

NCP160AFCT250T2G FAQ

1.How can I place an order for NCP160AFCT250T2G through Aetrix?

Please submit a Request for Quotation (RFQ) for NCP160AFCT250T2G 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 NCP160AFCT250T2G reliable?

The price and inventory of NCP160AFCT250T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP160AFCT250T2G is usually 5 days.

3.What payment methods are accepted for NCP160AFCT250T2G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP160AFCT250T2G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for NCP160AFCT250T2G?

NCP160AFCT250T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your NCP160AFCT250T2G 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 NCP160AFCT250T2G?

For technical support, including NCP160AFCT250T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP160AFCT250T2G requirements.

6.How does Aetrix verify that NCP160AFCT250T2G is sourced from the original manufacturer or authorized distributors?

All NCP160AFCT250T2G 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 NCP160AFCT250T2G meets industry standards.

7.What is the process for return or replacement of NCP160AFCT250T2G?

All NCP160AFCT250T2G units undergo pre-shipment inspection (PSI). If there is an issue with NCP160AFCT250T2G, 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 NCP160AFCT250T2G part is unused and in its original packaging.

Return procedure for NCP160AFCT250T2G:

1.Submit a request within 90 days.

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

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