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onsemi NCP160AMX250TBG
- Part No.:
- NCP160AMX250TBG
- Manufacturer:
- onsemi
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
NCP160AMX250TBG.pdf
- Description:
- IC REG LINEAR 2.5V 250MA 4XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,335
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Product details
Overview
NCP160AMX250TBG from onsemi is a 250 mA ultra-low-noise, high-PSRR LDO regulator with 2.5 V fixed output, designed for RF and analog circuits in space-constrained portable devices. It delivers ±2% output accuracy over load/temperature, 80 mV dropout at full load, 98 dB PSRR at 1 kHz, and 10 µVRMS output noise - enabling clean power for sensitive receivers and precision ADCs in smartphones and wireless LAN modules.
For engineers reviewing the NCP160AMX250TBG 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 designs requiring fast transient response and minimal board area.
Technical Context
The NCP160AMX250TBG 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 bandgap reference and soft-start circuit ensure stable startup under varying load conditions without external components.
It operates across 1.9 V to 5.5 V input range and maintains regulation down to 80 mV dropout at 250 mA for 2.5 V output. The device is optimized for stability with low-ESR ceramic capacitors and exhibits <±1 mV line transient deviation and ±40 mV load transient deviation - confirming suitability for dynamic RF supply rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5 V ±2% - ensures precise biasing for RF front-end ICs and analog sensors without external feedback. |
| Max Output Current | 250 mA continuous - supports moderate-power RF transceivers and multi-rail SoC subsystems. |
| Dropout Voltage | 80 mV at 250 mA - enables operation from single-cell Li-ion (3.0 V min) while maintaining regulation. |
| PSRR | 98 dB at 1 kHz - suppresses switching noise from adjacent DC-DC converters feeding shared input rails. |
| Output Noise | 10 µVRMS (10 Hz–100 kHz) - meets stringent spectral purity requirements for LTE/Wi-Fi receiver LNA and mixer stages. |
| Quiescent Current | 18 µA typ. - extends battery life in always-on sensor nodes and standby modes of mobile devices. |
| Enable Threshold | VENH = 1.2 V, VENL = 0.4 V - compatible with standard GPIO logic levels for host-controlled power sequencing. |
Pinout & Package
XDFN4 package: 1 mm × 1 mm × 0.4 mm, exposed pad (EPAD) for thermal enhancement; 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 2.5 V; must be bypassed with 1 µF ceramic capacitor near the pin for transient immunity. |
| EN | Enable control input | Active-high logic: >1.2 V enables regulation; <0.4 V disables output and activates 280 Ω discharge path to GND. |
| GND | Ground reference | Common return for IN, OUT, and EN; EPAD must be connected to PCB ground plane for optimal thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low noise | 10 µVRMS output noise enables direct powering of RF LNAs without additional filtering. |
| High PSRR | 98 dB at 1 kHz rejects ripple from noisy switchers, reducing need for cascaded filtering stages. |
| Active output discharge | 280 Ω internal discharge path pulls VOUT to GND within microseconds after disable - prevents floating rail issues in multi-voltage systems. |
| Low dropout | 80 mV dropout at 250 mA allows efficient use of declining battery voltage in portable applications. |
| Thermal protection | 160°C shutdown with 140°C hysteresis prevents permanent damage during sustained overload or poor heatsinking. |
Applications
| Smartphone RF Front-End | Wi-Fi 6/6E Transceiver Power |
|---|---|
|
Use Scenario: Supplying LNA, mixer, and PA bias rails in compact smartphone antenna modules. IC Role / Device Role / Timing Role: Low-noise local LDO delivering clean 2.5 V to RF signal chain components. Use Value: 10 µVRMS noise and 98 dB PSRR prevent reciprocal mixing and maintain EVM performance below 1.5%. |
Use Scenario: Powering Wi-Fi 6E transceivers operating in 5.925–7.125 GHz unlicensed bands. IC Role / Device Role / Timing Role: Stable 2.5 V supply for high-speed digital PHY and analog RF sections. Use Value: 80 mV dropout and 250 mA capacity support burst-mode TX operation without brownout. |
| Industrial IoT Sensor Node | Automotive Camera Module |
|
Use Scenario: Battery-powered environmental sensor node with BLE radio and precision ADC. IC Role / Device Role / Timing Role: Primary analog rail LDO for 16-bit SAR ADC and op-amp signal conditioning. Use Value: ±2% accuracy and 18 µA IQ ensure long-term measurement stability and multi-year battery life. |
Use Scenario: Powering image signal processor (ISP) and CIS analog front-end in AEC-Q200-compliant camera modules. IC Role / Device Role / Timing Role: Secondary regulated rail decoupled from main 3.3 V domain. Use Value: Fast load transient response (±40 mV) maintains ISP clock integrity during frame capture bursts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6210B252MR-G | 250 mA, 2.5 V fixed, 25 µA IQ, no active discharge, 120 mV dropout at 250 mA | Lacks active discharge; higher dropout limits use with sub-3.0 V batteries | Select when active discharge is unnecessary and cost sensitivity outweighs noise/PSRR advantages. |
| Richtek RT9080-25GB | 300 mA, 2.5 V fixed, 22 µA IQ, 100 mV dropout, 75 dB PSRR @ 1 kHz, no active discharge | Lower PSRR and no discharge path; wider input range (1.7–5.5 V) | Choose for higher current margin where PSRR >90 dB is not required and discharge is handled externally. |
Compared with Torex XC6210B252MR-G and Richtek RT9080-25GB, the NCP160AMX250TBG provides superior noise (10 µVRMS vs. ≥15 µVRMS) and PSRR (98 dB vs. ≤75 dB), plus integrated active discharge - making it optimal for RF-critical, space-constrained, and fast-sequencing applications.
Availability
NCP160AMX250TBG is available at Aetrix Electronics and suitable for smartphone RF subsystems, Wi-Fi 6E transceiver modules, and industrial IoT sensor nodes requiring stable component supply with full traceability and lifecycle management.
Supply support for NCP160AMX250TBG 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, cloud, and consumer markets.
The NCP160AMX250TBG belongs to onsemi's ultra-low-noise LDO family engineered specifically for RF and high-fidelity analog signal chains - prioritizing PSRR, noise floor, and transient response over raw current capacity.
FAQ
What is the maximum input voltage rating for the NCP160AMX250TBG?
The NCP160AMX250TBG 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 continuous operation, VIN must remain between 1.9 V and 5.5 V per the datasheet's Electrical Characteristics table.
Does the NCP160AMX250TBG require external capacitors, and what values are recommended?
Yes, the NCP160AMX250TBG requires both input (CIN) and output (COUT) ceramic capacitors. The datasheet specifies 1 µF minimum for each, using X5R or X7R dielectrics placed as close as possible to their respective pins. The device remains stable with effective capacitance as low as 0.7 µF, accounting for DC bias derating in small-case MLCCs.
How does the active discharge feature work on the NCP160AMX250TBG?
When the EN pin voltage falls below 0.4 V, the NCP160AMX250TBG disables regulation and activates an internal 280 Ω discharge path from OUT to GND. This rapidly discharges the output capacitor, preventing unintended back-powering of upstream circuitry or latch-up in multi-rail systems - a critical function in host-controlled power-down sequences.
What is the thermal resistance (RJA) of the NCP160AMX250TBG in its XDFN4 package?
The NCP160AMX250TBG in XDFN4 package has a typical junction-to-ambient thermal resistance (RJA) of 198.1 °C/W, measured per JEDEC JESD51-7 on a standard test board. Actual RJA improves significantly with increased PCB copper area - e.g., dropping to ~170 °C/W with 200 mm² of 1 oz Cu connected to the EPAD.
Is the NCP160AMX250TBG suitable for automotive applications?
The NCP160AMX250TBG is not AEC-Q200 qualified and is not recommended for automotive safety-critical systems. However, it is used in non-safety automotive infotainment and camera modules where ambient temperature stays within −40°C to +125°C and where customer qualification validates robustness - always verify against specific vehicle platform requirements.
NCP160AMX250TBG 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):
- 2.5V
- 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-XDFN (1x1)
NCP160AMX250TBG FAQ
1.How can I place an order for NCP160AMX250TBG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP160AMX250TBG 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 NCP160AMX250TBG reliable?
The price and inventory of NCP160AMX250TBG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP160AMX250TBG is usually 5 days.
3.What payment methods are accepted for NCP160AMX250TBG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP160AMX250TBG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP160AMX250TBG?
NCP160AMX250TBG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP160AMX250TBG 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 NCP160AMX250TBG?
For technical support, including NCP160AMX250TBG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP160AMX250TBG requirements.
6.How does Aetrix verify that NCP160AMX250TBG is sourced from the original manufacturer or authorized distributors?
All NCP160AMX250TBG 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 NCP160AMX250TBG meets industry standards.
7.What is the process for return or replacement of NCP160AMX250TBG?
All NCP160AMX250TBG units undergo pre-shipment inspection (PSI). If there is an issue with NCP160AMX250TBG, 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 NCP160AMX250TBG part is unused and in its original packaging.
Return procedure for NCP160AMX250TBG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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