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onsemi NCP160BFCS280T2G
- Part No.:
- NCP160BFCS280T2G
- Manufacturer:
- onsemi
- Package:
- 4-XFBGA, WLCSP
- Datasheet:
-
NCP160BFCS280T2G.pdf
- Description:
- IC REG LINEAR 2.8V 250MA 4WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:4,482
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Product details
Overview
NCP160BFCS280T2G from onsemi is a 250 mA ultra-low-noise, high-PSRR LDO regulator optimized for RF and analog circuits. It delivers a fixed 2.8 V output with ±2% accuracy over load and temperature, 80 mV dropout at 250 mA, 98 dB PSRR at 1 kHz, and 10 µVRMS output noise. It operates from 1.9 V to 5.5 V input and supports stable regulation with only 1 µF ceramic input/output capacitors - ideal for space-constrained mobile power rails in smartphones and wireless LAN modules.
For engineers reviewing the NCP160BFCS280T2G datasheet, pinout, applications, or equivalent options, key selection criteria include its non-active-discharge configuration (distinguishing it from 'A'-suffix variants), WLCSP4 0.64 mm × 0.64 mm × 0.33 mm package, EN pin threshold (1.2 V enable / 0.4 V disable), and thermal shutdown behavior (160°C trip, 140°C reset).
Technical Context
The NCP160BFCS280T2G uses a PMOS pass transistor architecture enabling low dropout and inherent reverse-current protection awareness. Its internal bandgap reference, soft-start circuitry, and thermal shutdown logic operate independently of external components - no external compensation required. The device integrates current limiting (700 mA typ.) and short-circuit protection without duty-cycle limitation.
Unlike active-discharge versions (e.g., NCP160AFCS280T2G), this 'B'-suffix variant omits the internal 280 Ω discharge path on disable, resulting in slower output decay but lower quiescent current (18 µA typ.) and zero discharge-related leakage during standby. It is specified for −40°C to +125°C junction operation with 108 °C/W junction-to-air thermal resistance in the WLCSP4 package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8 V ±2% - ensures stable bias for RF transceivers and analog sensor front-ends without external feedback. |
| Max Output Current | 250 mA - sufficient for powering single-core RF ICs or low-power ADCs without thermal derating in typical PCB layouts. |
| Dropout Voltage | 80 mV at 250 mA - enables operation from 2.88 V input when powered by Li-ion cells near end-of-discharge. |
| 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 signal integrity in sensitive RF receivers and high-resolution audio paths. |
| Quiescent Current | 18 µA typ. - extends battery life in always-on sensor nodes and low-duty-cycle IoT endpoints. |
| Enable Threshold | VENH = 1.2 V, VENL = 0.4 V - compatible with standard GPIO logic levels and allows clean sequencing with microcontrollers. |
Pinout & Package
Package: WLCSP4 (Case 567JZ), 0.64 mm × 0.64 mm × 0.33 mm, Pb-free, RoHS compliant. Exposed pad (EPAD) tied to GND for thermal enhancement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | IN | Input voltage supply pin - requires local 1 µF X7R/X5R ceramic capacitor placed within 2 mm for stability and transient response. |
| A2 | OUT | Regulated 2.8 V output - must be bypassed with 1 µF ceramic capacitor; ESR < 2 Ω recommended for optimal load transient performance. |
| B1 | EN | Chip enable control - pulled low (<0.4 V) disables regulator; pulled high (>1.2 V) enables regulation; internal 200 nA pull-down ensures safe default-off state. |
| B2 | GND | Common ground reference - connects to system ground plane; EPAD must be soldered to GND for thermal management. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low noise | 10 µVRMS output noise enables use in RF receiver LNA biasing and precision ADC reference supplies without added filtering. |
| High PSRR | 98 dB at 1 kHz rejects ripple from switching regulators - critical for maintaining SNR in mixed-signal SoCs. |
| No external compensation | Stable with 1 µF ceramic capacitors only - eliminates BOM cost and layout area for compensation networks. |
| Thermal shutdown | 160°C trip / 140°C reset hysteresis protects against sustained overload or poor heatsinking without latch-up. |
| Non-active-discharge | Omits internal discharge resistor - avoids standby current path from OUT to GND, preserving battery charge in sleep modes. |
Applications
| Smartphone RF Front-End | Wireless LAN Transceiver Bias |
|---|---|
|
Use Scenario: Powering 2.8 V LNA and mixer stages in LTE/5G front-end modules where supply noise directly impacts receiver sensitivity. IC Role / Device Role / Timing Role: Low-noise, high-PSRR voltage regulator providing clean bias rail independent of noisy system DC/DC outputs. Use Value: 10 µVRMS noise and 98 dB PSRR prevent degradation of NF and adjacent-channel rejection in sub-6 GHz bands. |
Use Scenario: Supplying 2.8 V to Wi-Fi 6/6E transceiver ICs during high-throughput data bursts with rapid load transients. IC Role / Device Role / Timing Role: Fast-response LDO delivering stable 2.8 V under dynamic 1 mA ↔ 250 mA load steps. Use Value: ±40 mV load transient deviation and 120 µs turn-on time ensure uninterrupted packet transmission and minimal PLL jitter. |
| Industrial Camera Sensor Bias | Portable Medical Pulse Oximeter |
|
Use Scenario: Providing regulated 2.8 V to CMOS image sensor analog blocks in compact industrial inspection cameras. IC Role / Device Role / Timing Role: Ultra-small WLCSP4 LDO enabling direct placement beneath sensor die for minimal loop inductance. Use Value: 0.64 mm × 0.64 mm footprint and 108 °C/W thermal resistance allow integration into tight optical module cavities. |
Use Scenario: Powering photodiode amplifier and analog front-end in battery-operated pulse oximeters requiring multi-day runtime. IC Role / Device Role / Timing Role: Low-quiescent-current LDO sustaining 2.8 V rail during 10-second measurement cycles with deep sleep between. Use Value: 18 µA quiescent current and 0.1 µA shutdown current extend coin-cell battery life beyond 12 months. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCP160AFCS280T2G | Same 2.8 V output, but includes active output discharge (280 Ω path) and 90° marking rotation. | Required where fast output discharge is needed for sequencing or safety-critical power-down. | Select only if active discharge is explicitly required; otherwise NCP160BFCS280T2G offers lower IQ and simpler biasing. |
| TPL7407LPWPR | 250 mA, 2.8 V fixed, 250 mV dropout, 45 µVRMS noise, SOT-23-6 package. | Larger footprint and higher noise limit use in RF-sensitive designs; lacks thermal shutdown reset hysteresis. | Consider only for cost-sensitive, non-RF applications where WLCSP4 size constraint does not apply. |
Compared with NCP160AFCS280T2G, the NCP160BFCS280T2G trades active discharge for lower quiescent current and simplified enable behavior; compared with TPL7407LPWPR, it delivers superior noise/PSRR performance in a 60% smaller footprint - making it the preferred choice for miniaturized, noise-critical RF systems.
Availability
NCP160BFCS280T2G is available at Aetrix Electronics and suitable for smartphone RF modules, wireless LAN transceivers, and portable medical devices requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for NCP160BFCS280T2G 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, serving automotive, industrial, cloud, and communications markets with discrete, analog, and power management solutions.
The NCP160 series was designed specifically for ultra-low-noise, high-PSRR power delivery to RF and precision analog circuits - addressing noise coupling challenges in densely integrated mobile and wireless platforms.
FAQ
What is the maximum input voltage rating for the NCP160BFCS280T2G?
The NCP160BFCS280T2G 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 Electrical Characteristics table.
Does the NCP160BFCS280T2G include active output discharge functionality?
No, the NCP160BFCS280T2G does not include active output discharge. It is the 'B'-suffix variant, meaning the internal 280 Ω discharge path is omitted. When disabled via the EN pin, the output voltage decays only through external load paths - unlike the 'A'-suffix NCP160AFCS280T2G which actively pulls OUT to GND.
What capacitor types and values are required for stable operation of the NCP160BFCS280T2G?
The NCP160BFCS280T2G requires a minimum 1 µF X7R or X5R ceramic capacitor on both IN and OUT pins, placed as close as possible to the device. MLCCs in 0201 or 0402 case sizes are recommended. ESR must be below 2 Ω; tantalum capacitors are not recommended due to high and temperature-dependent ESR.
How does thermal performance differ between the WLCSP4 and XDFN4 packages for the NCP160BFCS280T2G?
The NCP160BFCS280T2G is only offered in WLCSP4 (Case 567JZ). The XDFN4 package is used for other NCP160 variants (e.g., NCP160BMX280TBG) and has higher thermal resistance (198.1 °C/W vs. 108 °C/W for WLCSP4), requiring larger copper area for equivalent power dissipation. This makes WLCSP4 preferable for thermally constrained mobile applications.
What is the enable pin behavior and threshold specification for the NCP160BFCS280T2G?
The EN pin of the NCP160BFCS280T2G has a guaranteed enable threshold of VENH ≥ 1.2 V and disable threshold of VENL ≤ 0.4 V. It features an internal 200 nA pull-down current source, ensuring reliable disable when left floating. No external pull-down resistor is required unless faster turn-off is needed.
NCP160BFCS280T2G 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):
- 2.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.16V @ 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)
NCP160BFCS280T2G FAQ
1.How can I place an order for NCP160BFCS280T2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP160BFCS280T2G 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 NCP160BFCS280T2G reliable?
The price and inventory of NCP160BFCS280T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP160BFCS280T2G is usually 5 days.
3.What payment methods are accepted for NCP160BFCS280T2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP160BFCS280T2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP160BFCS280T2G?
NCP160BFCS280T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP160BFCS280T2G 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 NCP160BFCS280T2G?
For technical support, including NCP160BFCS280T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP160BFCS280T2G requirements.
6.How does Aetrix verify that NCP160BFCS280T2G is sourced from the original manufacturer or authorized distributors?
All NCP160BFCS280T2G 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 NCP160BFCS280T2G meets industry standards.
7.What is the process for return or replacement of NCP160BFCS280T2G?
All NCP160BFCS280T2G units undergo pre-shipment inspection (PSI). If there is an issue with NCP160BFCS280T2G, 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 NCP160BFCS280T2G part is unused and in its original packaging.
Return procedure for NCP160BFCS280T2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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