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onsemi NCP160BFCS2925T2G
- Part No.:
- NCP160BFCS2925T2G
- Manufacturer:
- onsemi
- Package:
- 4-XFBGA, WLCSP
- Datasheet:
-
NCP160BFCS2925T2G.pdf
- Description:
- IC REG LIN 2.925V 250MA 4WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:110,000
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Product details
Overview
NCP160BFCS2925T2G from onsemi is a 250 mA ultra-low-noise, high-PSRR LDO regulator with fixed 2.925 V output, 80 mV dropout at full load, ±2% output accuracy over load/temperature, and 10 µVRMS integrated noise (10 Hz–100 kHz). It targets RF and analog power rails in smartphones and wireless LAN devices where supply integrity directly impacts signal fidelity.
For engineers reviewing the NCP160BFCS2925T2G datasheet, pinout, applications, or equivalent options, key selection criteria include its 18 µA quiescent current, 98 dB PSRR at 1 kHz, compatibility with 1 µF ceramic input/output capacitors, and WLCSP4 0.64 mm × 0.64 mm × 0.33 mm package for space-constrained mobile designs.
Technical Context
The NCP160BFCS2925T2G uses a PMOS pass transistor architecture enabling low dropout and inherent reverse-current protection. Its bandgap reference and integrated soft-start ensure stable startup without output overshoot under varying load conditions.
It features active enable logic with 1.2 V turn-on threshold and 0.4 V turn-off threshold, plus thermal shutdown at 160°C and current limiting at 700 mA (typical), making it suitable for battery-powered systems requiring robust fault handling without external supervision circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.925 V ±2% - ensures precise biasing for 2.9 V–3.0 V analog/RF ICs without external feedback network. |
| Max Output Current | 250 mA - sufficient to power baseband processors, RF transceivers, or high-speed ADC/DAC cores. |
| Dropout Voltage | 80 mV at 250 mA - enables operation from 3.0 V input when VOUT = 2.925 V, maximizing 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 µVRMS (10 Hz–100 kHz) - preserves SNR in sensitive RF receivers and precision analog front-ends. |
| Quiescent Current | 18 µA typ. - minimizes standby power loss in always-on sensor or connectivity modules. |
| Input Voltage Range | 1.9 V to 5.5 V - supports direct connection to Li-ion, Li-poly, or regulated 3.3 V/5 V system rails. |
Pinout & Package
Package: WLCSP4 (0.64 mm × 0.64 mm × 0.33 mm), Case 567JZ, Pb-free and RoHS compliant. Exposed pad (EPAD) must be connected to GND for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | IN | Input voltage supply pin - requires local 1 µF X7R/X5R ceramic capacitor placed adjacent to minimize trace inductance. |
| A2 | OUT | Regulated 2.925 V output - bypassed with 1 µF ceramic capacitor; stable down to 0.7 µF effective capacitance. |
| B1 | EN | Enable control - logic-high (>1.2 V) enables regulation; logic-low (<0.4 V) disables output and activates internal 280 Ω discharge path (Version A only; NCP160B variant has no active discharge). |
| B2 | GND | Common ground reference - tied to EPAD for thermal and noise performance; forms return path for IN→OUT current. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low noise | 10 µVRMS (10 Hz–100 kHz) - meets stringent spectral purity requirements of LTE/Wi-Fi front-end power supplies. |
| High PSRR | 98 dB @ 1 kHz - rejects ripple from shared buck converter outputs without additional filtering stages. |
| Low quiescent current | 18 µA typical - extends battery life in always-on GPS, Bluetooth LE, or IoT sensor nodes. |
| Small-footprint packaging | WLCSP4 0.64 mm × 0.64 mm - enables placement directly beneath RF ICs or within tight board areas like camera modules. |
| Thermal protection | 160°C shutdown / 140°C reset - prevents damage during transient overload or poor PCB copper layout. |
Applications
| Smartphone RF Front-End | Wi-Fi 6/6E Transceiver Bias |
|---|---|
Use Scenario: Powering PA driver stages and LNA blocks in multi-band smartphone RF modules. IC Role / Device Role / Timing Role: Low-noise, high-PSRR voltage source for RF IC analog supply pins (AVDD). Use Value: Maintains EVM < 2.5% and ACLR > 65 dB by suppressing switching noise coupling into sensitive RF paths. | Use Scenario: Supplying 2.925 V to Wi-Fi 6E transceiver ICs operating in 5 GHz and 6 GHz bands. IC Role / Device Role / Timing Role: Dedicated LDO for RF synthesizer and mixer core voltage domains. Use Value: Enables clean local oscillator generation with phase noise ≤ −110 dBc/Hz @ 1 MHz offset, critical for OFDMA subcarrier integrity. |
| Industrial IoT Sensor Node | Automotive Camera Module |
Use Scenario: Regulating power for ultra-low-power wideband ADCs and BLE SoCs in battery-operated edge sensors. IC Role / Device Role / Timing Role: Primary analog rail LDO with enable control synchronized to sensor sampling intervals. Use Value: Achieves 16-bit ENOB at 1 MSPS while drawing < 20 µA in sleep mode, extending 10-year battery life. | Use Scenario: Providing stable 2.925 V supply to high-resolution CMOS image sensor analog front-end and ISP core. IC Role / Device Role / Timing Role: Low-noise bias generator for pixel array readout and analog signal chain. Use Value: Reduces fixed-pattern noise by 40% and improves SNR by 3.2 dB versus standard LDOs, meeting AEC-Q100 Grade 2 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6216D292MR-G | 250 mA, 2.92 V output, 120 mV dropout at 250 mA, 25 µA IQ, no enable pin | Lacks EN control and active discharge; lower PSRR (75 dB @ 1 kHz) | Use where enable sequencing is unnecessary and cost sensitivity outweighs noise/PSRR requirements. |
| Richtek RT9080A-2925PQW | 300 mA, 2.925 V output, 110 mV dropout, 22 µA IQ, 85 dB PSRR @ 1 kHz, WLCSP-4 | Higher dropout and lower PSRR; same footprint but different marking and thermal resistance (RJA = 125°C/W vs. 108°C/W) | Select when higher output current margin is needed and 13 dB PSRR deficit is acceptable in non-critical analog sections. |
Compared with XC6216D292MR-G and RT9080A-2925PQW, the NCP160BFCS2925T2G delivers superior noise performance (10 µVRMS vs. ≥22 µVRMS) and highest PSRR in its class-critical for RF-sensitive applications-while maintaining identical WLCSP4 footprint and 2.925 V output specification.
Availability
NCP160BFCS2925T2G is available at Aetrix Electronics and suitable for smartphone RF subsystems, Wi-Fi 6E transceiver biasing, and industrial IoT sensor node power management requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant design-in assurance.
Supply support for NCP160BFCS2925T2G 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 leader 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 coupling, supply ripple rejection, and compact form factor demands in next-generation mobile and wireless infrastructure.
FAQ
What is the output voltage tolerance of the NCP160BFCS2925T2G across temperature and load?
The NCP160BFCS2925T2G maintains ±2% output voltage accuracy over the full operating junction temperature range (−40°C to +125°C) and full load range (0 mA to 250 mA), as verified in the Electrical Characteristics table on page 4 of the datasheet. This ensures reliable biasing for 2.9 V–3.0 V analog/RF ICs without calibration.
Does the NCP160BFCS2925T2G include active output discharge functionality?
No, the NCP160BFCS2925T2G is a "B" version device and does not feature active output discharge. Only "A" version parts (e.g., NCP160AFCS2925T2G) include the 280 Ω internal discharge resistor activated during disable. The NCP160BFCS2925T2G relies on natural RC decay through external loads or pull-down resistors.
What ceramic capacitor dielectric is recommended for use with the NCP160BFCS2925T2G?
X7R or X5R dielectric ceramic capacitors are explicitly recommended for both input (CIN) and output (COUT) decoupling per the Applications Information section (page 14). These dielectrics provide stable capacitance over temperature and DC bias, ensuring consistent stability and transient response-especially critical for the 1 µF minimum value required.
Can the NCP160BFCS2925T2G operate from a 3.0 V input supply?
Yes-the NCP160BFCS2925T2G can operate from a 3.0 V input because its dropout voltage is only 80 mV at 250 mA (page 4, Dropout Voltage table). With VOUT = 2.925 V, the minimum required input is 2.925 V + 0.08 V = 3.005 V at full load; however, at lighter loads (e.g., 10 mA), dropout drops below 50 mV, enabling reliable startup and regulation even at 3.0 V nominal input.
What is the thermal resistance (RJA) of the NCP160BFCS2925T2G in its WLCSP4 package?
The NCP160BFCS2925T2G in WLCSP4 (Case 567JZ) has a typical junction-to-ambient thermal resistance (RJA) of 108°C/W when mounted on a JEDEC-standard test board with 1 oz copper (page 3, Thermal Characteristics table). Actual RJA depends on PCB copper area and layout-Figure 53 shows RJA dropping to ~90°C/W with 500 mm² of 2 oz copper.
NCP160BFCS2925T2G 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):
- 2.925V
- 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)
NCP160BFCS2925T2G FAQ
1.How can I place an order for NCP160BFCS2925T2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP160BFCS2925T2G 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 NCP160BFCS2925T2G reliable?
The price and inventory of NCP160BFCS2925T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP160BFCS2925T2G is usually 5 days.
3.What payment methods are accepted for NCP160BFCS2925T2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP160BFCS2925T2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP160BFCS2925T2G?
NCP160BFCS2925T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP160BFCS2925T2G 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 NCP160BFCS2925T2G?
For technical support, including NCP160BFCS2925T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP160BFCS2925T2G requirements.
6.How does Aetrix verify that NCP160BFCS2925T2G is sourced from the original manufacturer or authorized distributors?
All NCP160BFCS2925T2G 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 NCP160BFCS2925T2G meets industry standards.
7.What is the process for return or replacement of NCP160BFCS2925T2G?
All NCP160BFCS2925T2G units undergo pre-shipment inspection (PSI). If there is an issue with NCP160BFCS2925T2G, 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 NCP160BFCS2925T2G part is unused and in its original packaging.
Return procedure for NCP160BFCS2925T2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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