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onsemi NCP160BFCT285T2G
- Part No.:
- NCP160BFCT285T2G
- Manufacturer:
- onsemi
- Package:
- 4-XFBGA, WLCSP
- Datasheet:
-
NCP160BFCT285T2G.pdf
- Description:
- IC REG LINEAR 2.85V 250MA 4WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,973
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Product details
Overview
NCP160BFCT285T2G from onsemi is a 250 mA ultra-low-noise, high-PSRR LDO regulator with fixed 2.85 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 space-constrained portable devices requiring clean, stable voltage under dynamic load.
For engineers reviewing the NCP160BFCT285T2G datasheet, pinout, applications, or equivalent options, this page delivers verified package mapping (WLCSP4, 0.64 mm × 0.64 mm × 0.33 mm), validated enable logic thresholds (VENH = 1.2 V, VENL = 0.4 V), confirmed active discharge resistance (280 Ω), and real-world transient performance data (±40 mV load step response).
Technical Context
The NCP160BFCT285T2G uses a PMOS pass transistor architecture enabling ultra-low dropout and inherent reverse-current protection. Its bandgap reference and integrated soft-start ensure monotonic startup without output overshoot, while thermal shutdown (160°C trip, 140°C reset) and current limiting (700 mA typ.) provide robust fault handling.
This variant belongs to the "B" series - non-active-discharge configuration - distinguishing it from "A" versions that include an internal 280 Ω discharge path. It operates across 1.9 V–5.5 V input, supports 1 µF ceramic input/output capacitors, and maintains stability down to 0.7 µF effective COUT despite DC bias derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.85 V ±2% - ensures precise biasing for 2.8 V–2.9 V analog/RF ICs without external feedback. |
| Max Output Current | 250 mA continuous - sufficient for powering RF transceivers, ADCs, or low-power SoC I/O domains. |
| Dropout Voltage | 95 mV typ. at 250 mA - enables operation from 2.945 V input, critical for single-cell Li-ion (3.0–3.6 V) systems. |
| PSRR | 98 dB typ. at 1 kHz - suppresses switching noise from adjacent DC-DC converters feeding noisy supply rails. |
| Output Noise | 10 µVRMS (10 Hz–100 kHz) - meets stringent spectral purity requirements for RF front-end LNAs and PLL VCOs. |
| Quiescent Current | 18 µA typ. - extends battery life in always-on sensor nodes or standby modes of mobile devices. |
| Enable Threshold | VENH = 1.2 V, VENL = 0.4 V - compatible with standard GPIO logic levels and allows direct connection to microcontroller outputs. |
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 relief.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | IN | Input voltage supply (1.9–5.5 V); requires local 1 µF X7R/X5R ceramic capacitor for stability. |
| A2 | OUT | Regulated 2.85 V output; must be bypassed with 1 µF ceramic capacitor placed adjacent to pin. |
| B1 | EN | Active-high enable; <0.4 V disables regulator and activates internal discharge (not present in "B" variant). |
| B2 | GND | Common ground reference; EPAD must be connected to PCB ground plane for optimal thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low noise | 10 µVRMS (10 Hz–100 kHz) - eliminates need for post-LDO LC filtering in sensitive RF signal chains. |
| High PSRR | 98 dB @ 1 kHz - rejects ripple from shared buck converter supplies without additional decoupling stages. |
| Low dropout | 95 mV @ 250 mA - maximizes usable battery voltage range in compact portable designs. |
| Thermal protection | 160°C shutdown / 140°C recovery - prevents permanent damage during sustained overload or poor PCB heatsinking. |
| Small footprint | 0.64 mm × 0.64 mm WLCSP - enables integration into ultra-thin smartphones, wearables, and IoT edge sensors. |
Applications
| Wireless LAN Transceiver Power | Smartphone Camera Sensor Bias |
|---|---|
|
Use Scenario: Supplying 2.85 V bias to 2.4 GHz/5 GHz Wi-Fi transceiver ICs in mobile hotspots and client devices. IC Role / Device Role / Timing Role: Primary low-noise analog rail for RF front-end amplifiers and mixers. Use Value: 98 dB PSRR prevents switching noise from system PMIC from degrading EVM and receiver sensitivity. |
Use Scenario: Providing clean 2.85 V power to CMOS image sensor analog core and ADC reference in smartphone rear cameras. IC Role / Device Role / Timing Role: Dedicated LDO for image sensor analog domain, isolated from digital switching noise. Use Value: 10 µVRMS noise ensures minimal fixed-pattern noise and improved SNR in low-light imaging. |
| Bluetooth LE Audio Codec Supply | Industrial IoT Wireless Sensor Node |
|
Use Scenario: Powering audio codec ICs in Bluetooth earbuds requiring low THD+N and wide dynamic range. IC Role / Device Role / Timing Role: Low-noise VDDA rail for DACs, op-amps, and microphone preamps. Use Value: ±2% output accuracy maintains consistent gain calibration across temperature and battery discharge. |
Use Scenario: Regulating 2.85 V for ultra-low-power sub-GHz RF transceivers (e.g., Si446x) in battery-operated environmental sensors. IC Role / Device Role / Timing Role: Main supply for RF SoC during transmit bursts and deep-sleep wake-up cycles. Use Value: 18 µA quiescent current and fast 120 µs turn-on time minimize energy loss during periodic sensing intervals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6210B285MR-G | 250 mA, 2.85 V fixed, 120 mV dropout (at 250 mA), 25 µVRMS noise, no thermal shutdown | Lacks thermal protection and has higher noise - suitable only for thermally benign, low-dynamic-load environments | Select if board-level thermal management is guaranteed and PSRR >90 dB is not required |
| ROHM BD05KA5WGU-TR | 500 mA, 2.85 V fixed, 150 mV dropout (at 500 mA), 45 µVRMS noise, WLP-4 package (0.8 mm × 0.8 mm) | Higher current capability but larger size and 4.5× higher output noise - trades noise performance for drive strength | Choose when driving multiple parallel loads exceeds 250 mA but 10 µVRMS noise is not mandatory |
Compared with Torex XC6210B285MR-G and ROHM BD05KA5WGU-TR, the NCP160BFCT285T2G uniquely balances ultra-low noise (10 µVRMS), high PSRR (98 dB), and compact WLCSP4 packaging - making it optimal for RF/analog co-location where spectral purity and board area are jointly constrained.
Availability
NCP160BFCT285T2G is available at Aetrix Electronics and suitable for wireless LAN modules, smartphone camera subsystems, and Bluetooth LE audio devices requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for NCP160BFCT285T2G 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 innovation for automotive, industrial, cloud, and IoT applications.
The NCP160 series was designed specifically for RF and high-performance analog circuits - prioritizing ultra-low noise, high PSRR, and minimal solution footprint in battery-powered portable electronics.
FAQ
What is the dropout voltage specification for NCP160BFCT285T2G at 250 mA load?
The NCP160BFCT285T2G has a typical dropout voltage of 95 mV at 250 mA output current and 2.85 V nominal output. This value is measured when VOUT drops 100 mV below nominal - meaning the device sustains regulation down to VIN = 2.945 V. The maximum specified dropout is 160 mV under those conditions, ensuring reliable operation across temperature and process variation.
Does NCP160BFCT285T2G include active output discharge functionality?
No, the "B" suffix in NCP160BFCT285T2G explicitly denotes the non-active-discharge version. Unlike "A" variants (e.g., NCP160AFCT285T2G), this part does not integrate an internal 280 Ω discharge path from OUT to GND during disable. When EN is pulled low, the output floats unless an external discharge circuit is added.
Which package type and dimensions does NCP160BFCT285T2G use?
NCP160BFCT285T2G uses the WLCSP4 package (Case 567JZ), measuring 0.64 mm × 0.64 mm × 0.33 mm. It features four solder bumps arranged in a 2×2 array with 0.4 mm pitch, and includes an exposed thermal pad (EPAD) that must be connected to the PCB ground plane for optimal thermal performance.
Can NCP160BFCT285T2G operate with only 1 µF ceramic capacitors on input and output?
Yes - the NCP160BFCT285T2G is explicitly designed and characterized for stability with 1 µF X7R or X5R ceramic capacitors on both IN and OUT pins. The datasheet confirms stable operation down to 0.7 µF effective capacitance, accommodating DC bias derating common in 0201/0402 MLCCs used in space-constrained layouts.
What is the enable pin behavior and threshold for NCP160BFCT285T2G?
The EN pin of NCP160BFCT285T2G is active-high with guaranteed turn-on when VEN ≥ 1.2 V and guaranteed turn-off when VEN ≤ 0.4 V. It includes an internal 200 nA pull-down current source, allowing safe default-off operation when left unconnected. No external pull-down resistor is required.
NCP160BFCT285T2G 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):
- 2.85V
- 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)
NCP160BFCT285T2G FAQ
1.How can I place an order for NCP160BFCT285T2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP160BFCT285T2G 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 NCP160BFCT285T2G reliable?
The price and inventory of NCP160BFCT285T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP160BFCT285T2G is usually 5 days.
3.What payment methods are accepted for NCP160BFCT285T2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP160BFCT285T2G transactions.
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4.How is shipping managed for NCP160BFCT285T2G?
NCP160BFCT285T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP160BFCT285T2G 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 NCP160BFCT285T2G?
For technical support, including NCP160BFCT285T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP160BFCT285T2G requirements.
6.How does Aetrix verify that NCP160BFCT285T2G is sourced from the original manufacturer or authorized distributors?
All NCP160BFCT285T2G 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 NCP160BFCT285T2G meets industry standards.
7.What is the process for return or replacement of NCP160BFCT285T2G?
All NCP160BFCT285T2G units undergo pre-shipment inspection (PSI). If there is an issue with NCP160BFCT285T2G, 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 NCP160BFCT285T2G part is unused and in its original packaging.
Return procedure for NCP160BFCT285T2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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