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onsemi NCP160AFCT350T2G
- Part No.:
- NCP160AFCT350T2G
- Manufacturer:
- onsemi
- Package:
- 4-XFBGA, WLCSP
- Datasheet:
-
NCP160AFCT350T2G.pdf
- Description:
- IC REG LINEAR 3.5V 250MA 4WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:4,919
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Product details
Overview
NCP160AFCT350T2G from onsemi is a 250 mA ultra-low-noise, high-PSRR LDO regulator with fixed 3.5 V output, 80 mV dropout at full load, ±2% output accuracy over load/temperature, and 10 µVRMS integrated noise (10 Hz–100 kHz). It delivers stable power to RF transceivers and analog signal chains in space-constrained mobile devices.
For engineers reviewing the NCP160AFCT350T2G datasheet, pinout, applications, or equivalent options, key selection criteria include its 98 dB PSRR at 1 kHz, 18 µA quiescent current, active discharge capability, compatibility with 1 µF ceramic input/output capacitors, and WLCSP4 0.64 mm × 0.64 mm × 0.33 mm package.
Technical Context
The NCP160AFCT350T2G uses a PMOS pass transistor architecture enabling low dropout and inherent reverse-current protection. Its bandgap reference and integrated soft-start ensure monotonic turn-on without output overshoot.
It features active discharge via a 280 Ω internal resistor when disabled (EN < 0.4 V), supports thermal shutdown at 160°C, and maintains stability across −40°C to +125°C junction temperature with minimal external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.5 V ±2% - ensures precise biasing for 3.3 V–3.6 V analog/RF ICs without external feedback. |
| Max Output Current | 250 mA - sufficient for powering RF front-end modules, audio codecs, or sensor signal chains. |
| Dropout Voltage | 80 mV at 250 mA - enables operation from 3.58 V input, critical for single-cell Li-ion systems under load. |
| PSRR | 98 dB at 1 kHz - suppresses switching noise from adjacent DC-DC converters in mixed-signal PCBs. |
| Output Noise | 10 µVRMS (10 Hz–100 kHz) - preserves SNR in ADCs, PLLs, and RF receivers requiring clean analog supply. |
| Quiescent Current | 18 µA typical - extends battery life in always-on sensor nodes and standby modes of portable devices. |
| Enable Threshold | VENH = 1.2 V, VENL = 0.4 V - compatible with standard GPIO logic levels for controlled power sequencing. |
Pinout & Package
Package: WLCSP4 (Case 567JZ), 0.64 mm × 0.64 mm × 0.33 mm, Pb-free, RoHS-compliant chip-scale package with exposed pad tied to GND for thermal enhancement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | IN | Input voltage supply pin - accepts 1.9 V to 5.5 V; requires local 1 µF ceramic decoupling. |
| A2 | OUT | Regulated 3.5 V output - must be bypassed with 1 µF ceramic capacitor placed adjacent to pin. |
| B1 | EN | Active-high enable - drives device ON above 1.2 V; activates internal 280 Ω discharge path when < 0.4 V. |
| B2 | GND | Common ground reference - connects to PCB ground plane; exposed pad must be soldered to GND for thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low noise | 10 µVRMS (10 Hz–100 kHz) - minimizes phase noise in VCOs and quantization noise in precision ADCs. |
| High PSRR | 98 dB @ 1 kHz - rejects ripple from buck converters sharing same battery rail in compact handheld designs. |
| Active output discharge | 280 Ω internal resistor - safely discharges output capacitance during shutdown, preventing latch-up in downstream logic. |
| Low quiescent current | 18 µA typical - enables >1-year battery life in IoT sensors operating in deep-sleep cycles. |
| Stable with 1 µF ceramics | No ESR requirement - eliminates need for bulky tantalum or polymer caps, reducing BOM count and board area. |
Applications
| RF Transceiver Power | Analog Sensor Signal Chain |
|---|---|
|
Use Scenario: Powering LTE/Wi-Fi RFICs in smartphones where switching noise from PMICs must be suppressed. IC Role / Device Role / Timing Role: Clean 3.5 V bias supply for PA driver stages and LNA blocks. Use Value: 98 dB PSRR prevents AM-to-PM distortion; 10 µVRMS noise avoids EVM degradation in 256-QAM transmission. |
Use Scenario: Supplying precision op-amps and SAR ADCs in medical wearable biosensors. IC Role / Device Role / Timing Role: Low-noise analog rail decoupled from digital domains. Use Value: 10 µVRMS noise directly limits achievable ENOB; ±2% accuracy ensures consistent gain calibration across temperature. |
| Camera Module ISP Core | Always-On Voice Assistant Mic Bias |
|
Use Scenario: Providing regulated 3.5 V to image signal processors in multi-camera smartphone arrays. IC Role / Device Role / Timing Role: Primary analog supply for ISP core logic and ADC interfaces. Use Value: 80 mV dropout allows operation down to 3.58 V input during battery sag; 18 µA IQ extends idle time between frame captures. |
Use Scenario: Biasing MEMS microphones in smart speakers with continuous voice detection. IC Role / Device Role / Timing Role: Always-on low-noise supply enabling sub-100 µA system sleep current. Use Value: Active discharge ensures rapid mic bias ramp-down on wake-word detection, eliminating pop/click artifacts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6210B352MR-G | 3.5 V fixed, 200 mA, 45 µA IQ, no active discharge, SOT-25 package (2.9 mm × 2.8 mm) | Larger footprint; lacks active discharge and PSRR >90 dB above 100 Hz | Select for cost-sensitive industrial controls where size and fast discharge are non-critical. |
| Richtek RT9080AL-35PU5 | 3.5 V fixed, 300 mA, 25 µA IQ, 75 dB PSRR @ 1 kHz, DFN-6 (1.2 mm × 1.2 mm) | Higher current but lower PSRR and no active discharge; requires minimum 2.2 µF output cap | Choose when higher output current is needed and board space permits slightly larger DFN vs. WLCSP. |
Compared with Torex XC6210B352MR-G and Richtek RT9080AL-35PU5, the NCP160AFCT350T2G offers superior noise/PSRR performance in the smallest footprint with guaranteed active discharge-critical for RF and always-on audio subsystems.
Availability
NCP160AFCT350T2G is available at Aetrix Electronics and suitable for battery-powered equipment, wireless LAN devices, and smartphones requiring stable component supply with lead-free, RoHS-compliant packaging.
Supply support for NCP160AFCT350T2G 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 manufacturer specializing in energy-efficient power management, analog, and sensing solutions for automotive, industrial, and communications markets.
The NCP160 series is designed specifically for ultra-low-noise, high-PSRR power delivery to RF and precision analog circuits in space-constrained portable electronics.
FAQ
What is the maximum input voltage rating for the NCP160AFCT350T2G?
The NCP160AFCT350T2G has an absolute maximum input voltage of 6 V. Its recommended operating input range is 1.9 V to 5.5 V. Exceeding 6 V may cause permanent damage. For reliable 3.5 V output regulation, VIN must remain ≥ 3.58 V (3.5 V + 80 mV dropout) under 250 mA load.
Does the NCP160AFCT350T2G require external compensation components?
No, the NCP160AFCT350T2G is internally compensated and stable with only 1 µF ceramic input and output capacitors. No external resistors, capacitors, or ESR networks are required-reducing BOM count and layout complexity while ensuring robust transient response across temperature.
How does the active discharge function operate in the NCP160AFCT350T2G?
When the EN pin voltage drops below 0.4 V, the NCP160AFCT350T2G disables regulation and activates an internal 280 Ω discharge path from OUT to GND. This rapidly discharges output capacitance-critical for preventing voltage back-feed into powered-down circuitry in multi-rail systems.
What is the thermal performance of the NCP160AFCT350T2G in its WLCSP4 package?
In the WLCSP4 (Case 567JZ) package, the NCP160AFCT350T2G has a junction-to-ambient thermal resistance (RJA) of 108 °C/W on a standard JEDEC test board. With proper PCB copper area (≥200 mm²) and exposed pad soldered to GND, it sustains 250 mA at ambient temperatures up to +85°C without thermal shutdown.
Can the NCP160AFCT350T2G be used with input voltages below 2.0 V?
No-the NCP160AFCT350T2G specifies a minimum operating input voltage of 1.9 V. Operation below this threshold is not characterized or guaranteed. At 1.9 V input, the 3.5 V output cannot be maintained due to dropout constraints; the device will enter dropout mode and output voltage will track VIN minus dropout.
NCP160AFCT350T2G 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):
- 3.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.14V @ 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)
NCP160AFCT350T2G FAQ
1.How can I place an order for NCP160AFCT350T2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP160AFCT350T2G 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 NCP160AFCT350T2G reliable?
The price and inventory of NCP160AFCT350T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP160AFCT350T2G is usually 5 days.
3.What payment methods are accepted for NCP160AFCT350T2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP160AFCT350T2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP160AFCT350T2G?
NCP160AFCT350T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP160AFCT350T2G 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 NCP160AFCT350T2G?
For technical support, including NCP160AFCT350T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP160AFCT350T2G requirements.
6.How does Aetrix verify that NCP160AFCT350T2G is sourced from the original manufacturer or authorized distributors?
All NCP160AFCT350T2G 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 NCP160AFCT350T2G meets industry standards.
7.What is the process for return or replacement of NCP160AFCT350T2G?
All NCP160AFCT350T2G units undergo pre-shipment inspection (PSI). If there is an issue with NCP160AFCT350T2G, 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 NCP160AFCT350T2G part is unused and in its original packaging.
Return procedure for NCP160AFCT350T2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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