My Inquiry
My Account
onsemi NCP160AMX285TBG
- Part No.:
- NCP160AMX285TBG
- Manufacturer:
- onsemi
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
NCP160AMX285TBG.pdf
- Description:
- IC REG LINEAR 2.85V 250MA 4XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,680
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NCP160AMX285TBG 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 output noise. It serves as a precision power supply for RF transceivers and analog signal chains in space-constrained portable devices.
For engineers reviewing the NCP160AMX285TBG datasheet, pinout, applications, or equivalent options, key selection criteria include its 98 dB PSRR at 1 kHz, compatibility with 1 µF ceramic input/output capacitors, XDFN-4 1 mm × 1 mm package, active discharge function, and thermal shutdown protection at 160°C.
Technical Context
The NCP160AMX285TBG employs a PMOS pass transistor architecture enabling low dropout and inherent reverse-current blocking. Its bandgap reference and integrated soft-start ensure stable startup under varying load conditions while maintaining <18 µA quiescent current.
Designed specifically for RF/analog co-location, it delivers ultra-high PSRR (98 dB @ 1 kHz) and ultra-low noise (10 µVRMS, 10 Hz–100 kHz) without requiring external compensation. The EN pin controls enable/disable and activates a 280 Ω active discharge path when disabled.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.85 V ±2% - ensures stable biasing for 2.8 V–3.0 V RF ICs without external feedback network. |
| Max Output Current | 250 mA - sufficient to power RF front-end modules, ADC/DAC reference supplies, or low-power sensors. |
| Dropout Voltage | 95 mV typ. at 250 mA - enables operation from 2.945 V input, supporting single-cell Li-ion or regulated 3.3 V rail derating. |
| PSRR | 98 dB typ. at 1 kHz - suppresses switching noise from adjacent DC-DC converters feeding RF/analog sections. |
| Output Noise | 10 µVRMS (10 Hz–100 kHz) - meets stringent phase-noise and SNR requirements in LTE/Wi-Fi receivers and precision data converters. |
| Quiescent Current | 18 µA typ. - extends battery life in always-on sensor nodes and standby RF wake-up circuits. |
| Enable Threshold | VENH = 1.2 V, VENL = 0.4 V - compatible with 1.8 V GPIO logic and supports clean sequencing with host processors. |
Pinout & Package
XDFN-4 1 mm × 1 mm × 0.4 mm package with exposed thermal pad (EPAD) for enhanced power dissipation; RoHS-compliant, Pb-free construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input voltage supply | Accepts 1.9–5.5 V input; requires local 1 µF ceramic decoupling to minimize AC impedance and improve transient response. |
| OUT | Regulated output | Delivers stable 2.85 V; must be bypassed with 1 µF ceramic capacitor placed adjacent to pin for stability and noise filtering. |
| EN | Enable control input | Logic-high (>1.2 V) enables regulation; logic-low (<0.4 V) disables output and activates 280 Ω active discharge to rapidly clear VOUT. |
| GND | Ground reference | Common return path; EPAD must be soldered to PCB ground plane to reduce thermal resistance (RJA = 198.1 °C/W). |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low noise | 10 µVRMS output noise enables clean power for RF LNAs and high-resolution ADCs without post-regulation filtering. |
| High PSRR | 98 dB rejection at 1 kHz allows direct use after noisy buck converters in compact RF modules. |
| Active output discharge | 280 Ω internal discharge path clears output within microseconds upon disable-critical for multi-rail sequencing and fast wake/sleep transitions. |
| Stable with 1 µF ceramics | Eliminates need for larger or higher-ESR capacitors, reducing BOM count and PCB area in 0201/0402 designs. |
| Thermal shutdown | 160°C trip threshold with 140°C hysteresis prevents damage during sustained overload or poor heatsinking in sealed enclosures. |
Applications
| Wireless Transceiver Power | High-Resolution Analog Signal Chain |
|---|---|
Use Scenario: Powering LTE/Wi-Fi RF transceivers (e.g., Qorvo QM11027, Skyworks SKY66422) in smartphones and IoT gateways. IC Role / Device Role / Timing Role: Primary low-noise bias supply for PA driver stages and mixer LO buffers. Use Value: 98 dB PSRR prevents switching noise from baseband DC-DCs from degrading EVM and ACLR performance. | Use Scenario: Supplying reference voltage and analog front-end circuitry in medical-grade EEG/ECG sensors. IC Role / Device Role / Timing Role: Clean 2.85 V rail for SAR ADC reference buffers and instrumentation amplifiers. Use Value: 10 µVRMS noise directly translates to >100 dB SNR headroom, meeting IEC 60601-2-27 clinical accuracy requirements. |
| Low-Power Always-On Sensor Node | Compact Camera Module Bias |
Use Scenario: Powering BLE/Wi-Fi 6E SoCs (e.g., Nordic nRF52840, ESP32-C6) in battery-operated asset trackers. IC Role / Device Role / Timing Role: Standby LDO for radio subsystem during deep-sleep mode. Use Value: 18 µA quiescent current extends 200 mAh coin-cell life beyond 5 years in 1-second beacon intervals. | Use Scenario: Providing regulated 2.85 V to CMOS image sensor analog core and PLL in smartphone front cameras. IC Role / Device Role / Timing Role: Dedicated low-noise supply for pixel array bias and timing generator. Use Value: Active discharge clears VOUT in <50 µs, preventing ghost images during rapid camera mode switching. |
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, 25 µA IQ, no active discharge | Lacks active discharge and has lower PSRR (70 dB @ 1 kHz); suitable only where fast VOUT decay is not required | Select when cost sensitivity outweighs need for sequencing control and RF-grade noise performance. |
| Richtek RT9080-285GJ5 | 300 mA, 2.85 V fixed, 110 mV dropout, 22 µA IQ, 65 dB PSRR @ 1 kHz, no active discharge | Higher current but significantly lower PSRR and no discharge path; requires larger output cap for stability | Prefer for non-RF applications where marginally higher load capability justifies trade-offs in noise and sequencing. |
Compared with XC6210B285MR-G and RT9080-285GJ5, the NCP160AMX285TBG uniquely combines RF-optimized PSRR/noise, active discharge, and ultra-low IQ in a 1 mm² XDFN package-making it the only choice for space-constrained, multi-rail, high-integrity RF systems.
Availability
NCP160AMX285TBG is available at Aetrix Electronics and suitable for wireless transceivers, medical analog front-ends, battery-powered IoT nodes, and compact camera modules requiring stable component supply across production lifecycles.
Supply support for NCP160AMX285TBG 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 delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and edge applications.
The NCP160 series is designed specifically for RF and high-performance analog circuits-prioritizing ultra-low noise, high PSRR, fast transient response, and minimal board footprint in portable electronics.
FAQ
What is the maximum input voltage rating for the NCP160AMX285TBG?
The NCP160AMX285TBG has an absolute maximum input voltage of 6 V. Operation above 5.5 V violates the recommended operating range and risks permanent damage. For reliable long-term performance in 3.3 V or 5 V system rails, VIN should be maintained between 1.9 V and 5.5 V per the datasheet's Electrical Characteristics table.
Does the NCP160AMX285TBG require external capacitors, and what values are recommended?
Yes, the NCP160AMX285TBG requires both input (CIN) and output (COUT) ceramic capacitors. The datasheet specifies 1 µF X7R/X5R MLCCs placed as close as possible to the IN and OUT pins. These capacitors ensure stability, low impedance, and optimal transient response-no ESR requirement exists, but values below 0.7 µF may compromise stability across temperature and bias.
How does the active discharge feature work on the NCP160AMX285TBG?
When the EN pin voltage drops below 0.4 V, the NCP160AMX285TBG disables regulation and activates an internal 280 Ω discharge path from OUT to GND. This pulls the output voltage to ground within microseconds-critical for precise power sequencing in multi-rail systems and eliminating residual charge that could cause latch-up or false wake events.
What is the thermal performance of the NCP160AMX285TBG in its XDFN-4 package?
In the XDFN-4 1 mm × 1 mm package, the NCP160AMX285TBG has a junction-to-ambient thermal resistance (RJA) of 198.1 °C/W with standard JEDEC test board layout. With 1 oz copper and 200 mm² thermal pad area, RJA improves to ~170 °C/W, allowing up to ~350 mW max power dissipation at 25°C ambient before reaching the 125°C max operating junction temperature.
Is the NCP160AMX285TBG pin-compatible with other variants in the NCP160 family?
Yes-the NCP160AMX285TBG shares identical XDFN-4 pinout (IN, OUT, EN, GND) and footprint with all NCP160AMX-xTBG variants (e.g., NCP160AMX330TBG, NCP160AMX500TBG). This enables drop-in voltage option changes during design iteration or qualification without PCB revision, provided thermal and layout constraints remain satisfied.
NCP160AMX285TBG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 4-XDFN Exposed Pad
- 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-XDFN (1x1)
NCP160AMX285TBG FAQ
1.How can I place an order for NCP160AMX285TBG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP160AMX285TBG 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 NCP160AMX285TBG reliable?
The price and inventory of NCP160AMX285TBG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP160AMX285TBG is usually 5 days.
3.What payment methods are accepted for NCP160AMX285TBG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP160AMX285TBG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP160AMX285TBG?
NCP160AMX285TBG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP160AMX285TBG 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 NCP160AMX285TBG?
For technical support, including NCP160AMX285TBG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP160AMX285TBG requirements.
6.How does Aetrix verify that NCP160AMX285TBG is sourced from the original manufacturer or authorized distributors?
All NCP160AMX285TBG 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 NCP160AMX285TBG meets industry standards.
7.What is the process for return or replacement of NCP160AMX285TBG?
All NCP160AMX285TBG units undergo pre-shipment inspection (PSI). If there is an issue with NCP160AMX285TBG, 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 NCP160AMX285TBG part is unused and in its original packaging.
Return procedure for NCP160AMX285TBG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NCP160AMX285TBG Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
