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onsemi NCP160AFCS2925T2G
- Part No.:
- NCP160AFCS2925T2G
- Manufacturer:
- onsemi
- Package:
- 4-XFBGA, WLCSP
- Datasheet:
-
NCP160AFCS2925T2G.pdf
- Description:
- IC REG LIN 2.925V 250MA 4WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:355,000
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Product details
Overview
NCP160AFCS2925T2G from onsemi is a 250 mA ultra-low-noise, high-PSRR LDO regulator in a 0.64 mm × 0.64 mm WLCSP4 package, delivering fixed 2.925 V output with ±2% accuracy, 80 mV dropout at full load, 98 dB PSRR at 1 kHz, and 10 µVRMS output noise - optimized for RF power amplifiers and analog sensor biasing in smartphones and wireless LAN modules.
For engineers reviewing the NCP160AFCS2925T2G datasheet, pinout, applications, or equivalent options, key selection criteria include its active discharge capability, 0.33 mm profile for space-constrained PCBs, compatibility with 1 µF ceramic input/output capacitors, and thermal shutdown protection at 160°C junction temperature.
Technical Context
The NCP160AFCS2925T2G employs a PMOS pass transistor architecture enabling ultra-low dropout and inherent reverse-current blocking. Its bandgap reference and integrated soft-start ensure stable startup under varying load conditions while maintaining sub-20 µA quiescent current.
Designed specifically for noise-sensitive RF/analog rails, it achieves 98 dB PSRR at 1 kHz and 10 µVRMS integrated noise (10 Hz–100 kHz) without requiring external compensation - enabled by internal stability optimization for 1 µF ceramic capacitors on both input and output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.925 V ±2% over load/temperature - ensures precise biasing for 2.8–3.0 V RF front-end ICs. |
| Max Output Current | 250 mA continuous - supports multi-stage LNA or ADC reference circuits without derating. |
| Dropout Voltage | 85 mV at 250 mA (typ.) - enables operation from 3.0 V supply with ≥100 mV headroom for battery sag. |
| PSRR | 98 dB at 1 kHz - suppresses switching noise from adjacent DC-DC converters feeding baseband processors. |
| Output Noise | 10 µVRMS (10 Hz–100 kHz) - meets stringent phase-noise requirements for local oscillator supply rails. |
| Quiescent Current | 18 µA typ. - extends battery life in always-on sensor nodes and standby RF receivers. |
| Enable Threshold | VENH = 1.2 V, VENL = 0.4 V - compatible with 1.8 V GPIO logic and provides clean sequencing control. |
Pinout & Package
Package: WLCSP4 (0.64 mm × 0.64 mm × 0.33 mm), Case 567JZ, Pb-free/RoHS compliant. Exposed pad (EPAD) tied to GND for thermal enhancement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | IN | Input voltage supply (1.9–5.5 V); requires 1 µF X7R/X5R ceramic capacitor placed adjacent to pin. |
| A2 | OUT | Regulated 2.925 V output; bypassed with 1 µF ceramic capacitor; supports active discharge via internal 280 Ω resistor when disabled. |
| B1 | EN | Enable control: <0.4 V disables regulator and activates discharge; >1.2 V enables regulation; internal 200 nA pull-down ensures default-off state. |
| B2 | GND | Common ground reference; EPAD must be connected to PCB ground plane for optimal thermal performance (RJA = 108 °C/W). |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low noise | 10 µVRMS (10 Hz–100 kHz) - eliminates measurable contribution to RF receiver noise figure degradation. |
| High PSRR | 98 dB @ 1 kHz - rejects ripple from shared PMIC outputs without additional filtering. |
| Active output discharge | 280 Ω internal resistor - ensures rapid VOUT decay (<1 ms for 1 µF load) during power-down sequencing. |
| Low-profile packaging | 0.33 mm height WLCSP4 - enables placement beneath stacked memory or under display flex cables in slim mobile designs. |
| Thermal protection | 160°C shutdown / 140°C reset - prevents permanent damage during transient overload or poor heatsinking. |
Applications
| RF Power Amplifier Bias Rail | High-Speed ADC Reference Supply |
|---|---|
Use Scenario: Providing clean, low-noise bias to GaAs or GaN PA stages in 5G NR FR1 handsets operating at 2.6 GHz. IC Role / Device Role / Timing Role: LDO regulator supplying stable 2.925 V to PA collector/drain node with minimal PSK/EVM degradation. Use Value: 98 dB PSRR and 10 µVRMS noise prevent AM-to-PM conversion and maintain ACLR < –45 dBc under dynamic modulation. | Use Scenario: Powering the analog reference rail of a 12-bit, 10 MSPS SAR ADC in industrial IoT sensor nodes. IC Role / Device Role / Timing Role: Low-noise voltage source for VREF input, directly impacting ENOB and DNL performance. Use Value: ±2% output accuracy and 10 µVRMS noise enable >10.5-bit effective resolution without external trimming or filtering. |
| Wireless LAN Transceiver Core Supply | Always-On Sensor Hub Regulator |
Use Scenario: Delivering regulated 2.925 V to the RF transceiver core (e.g., Wi-Fi 6E SoC) in portable hotspot devices. IC Role / Device Role / Timing Role: Primary LDO for sensitive RF synthesizer and mixer blocks requiring ultra-stable supply. Use Value: 85 mV dropout allows direct operation from single-cell Li-ion (3.0–4.2 V), minimizing power loss and heat generation. | Use Scenario: Supplying always-on motion sensor cluster (accelerometer + gyroscope + magnetometer) in wearable fitness trackers. IC Role / Device Role / Timing Role: Ultra-low-IQ regulator maintaining sensor bias during deep-sleep mode (18 µA IQ). Use Value: 0.1 µA shutdown current extends battery runtime beyond 6 months on CR2032 coin cell. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A2029PDBVR | 290 mV dropout at 250 mA; 7 µVRMS noise; 0.65 mm × 0.65 mm DSBGA package. | Lacks active discharge; lower PSRR (70 dB @ 1 kHz); optimized for general-purpose low-noise use. | Select when lowest possible noise is critical and active discharge is not required in system sequencing. |
| MCP1825-2925I/OT | 250 mA; 350 mV dropout; 40 µVRMS noise; SOT-23-5 package (2.9 mm × 1.6 mm). | Higher profile and larger footprint; no active discharge; significantly higher output noise. | Choose only if board layout constraints permit larger package and system tolerates higher noise floor. |
Compared with TPS7A2029PDBVR and MCP1825-2925I/OT, the NCP160AFCS2925T2G uniquely combines ultra-low noise (10 µVRMS), active discharge, and sub-100 mV dropout in a 0.64 mm × 0.64 mm footprint - making it the sole option meeting simultaneous RF-grade noise, sequencing, and space requirements in modern mobile designs.
Availability
NCP160AFCS2925T2G is available at Aetrix Electronics and suitable for smartphone RF front-ends, wireless LAN transceivers, and high-resolution sensor hubs requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for NCP160AFCS2925T2G 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 electronics, delivering silicon solutions for automotive, industrial, cloud, medical, and communication markets.
The NCP160 product line targets ultra-low-noise, high-PSRR LDO regulation for RF and precision analog subsystems - designed specifically to replace legacy regulators in battery-powered mobile and wireless infrastructure where spectral purity and power efficiency are critical.
FAQ
What is the output voltage tolerance of the NCP160AFCS2925T2G across temperature and load?
The NCP160AFCS2925T2G maintains ±2% output voltage accuracy over the full operating temperature range (−40°C to +125°C) and full load range (0–250 mA). This is verified per the Electrical Characteristics table in the datasheet, where VOUT deviation remains within ±2% under all specified test conditions including line/load regulation and thermal drift.
Does the NCP160AFCS2925T2G support active output discharge, and how does it function?
Yes, the NCP160AFCS2925T2G features 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 behavior is confirmed in the datasheet's "Enable Operation" section and Figure 2, ensuring controlled power-down sequencing in multi-rail systems.
What is the minimum recommended output capacitor for stable operation of the NCP160AFCS2925T2G?
The NCP160AFCS2925T2G is designed to remain stable with a minimum effective output capacitance of 0.7 µF (X7R/X5R ceramic), though 1 µF is recommended for optimal transient response and PSRR. This is explicitly stated in the Applications Information section and validated in Figure 37 (Stability vs. ESR), which confirms stable operation down to 0.7 µF across temperature and bias conditions.
Can the NCP160AFCS2925T2G operate from a 3.0 V input supply while delivering 250 mA at 2.925 V?
Yes - the NCP160AFCS2925T2G achieves an 85 mV dropout voltage at 250 mA (typical) for VOUT = 2.925 V, meaning it requires only 3.01 V input to sustain full load. With a 3.0 V supply, margin is tight but feasible given typical 3.0 V battery nominal voltage and 85 mV typ. (max 160 mV) dropout specification - confirmed in Table 4, "Dropout Voltage".
Is the NCP160AFCS2925T2G RoHS compliant and lead-free?
Yes, the NCP160AFCS2925T2G is Pb-free and RoHS compliant, as explicitly stated in the Features section of the datasheet and confirmed in the Ordering Information table (suffix "G" denotes Pb-free packaging). The WLCSP4 package (Case 567JZ) meets JEDEC J-STD-609 Class 2a marking requirements for lead-free identification.
NCP160AFCS2925T2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 4-XFBGA, WLCSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.925V
- 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-WLCSP (0.64x0.64)
NCP160AFCS2925T2G FAQ
1.How can I place an order for NCP160AFCS2925T2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP160AFCS2925T2G 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 NCP160AFCS2925T2G reliable?
The price and inventory of NCP160AFCS2925T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP160AFCS2925T2G is usually 5 days.
3.What payment methods are accepted for NCP160AFCS2925T2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP160AFCS2925T2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP160AFCS2925T2G?
NCP160AFCS2925T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP160AFCS2925T2G 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 NCP160AFCS2925T2G?
For technical support, including NCP160AFCS2925T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP160AFCS2925T2G requirements.
6.How does Aetrix verify that NCP160AFCS2925T2G is sourced from the original manufacturer or authorized distributors?
All NCP160AFCS2925T2G 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 NCP160AFCS2925T2G meets industry standards.
7.What is the process for return or replacement of NCP160AFCS2925T2G?
All NCP160AFCS2925T2G units undergo pre-shipment inspection (PSI). If there is an issue with NCP160AFCS2925T2G, 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 NCP160AFCS2925T2G part is unused and in its original packaging.
Return procedure for NCP160AFCS2925T2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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