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onsemi NCP154MX330280TAG
- Part No.:
- NCP154MX330280TAG
- Manufacturer:
- onsemi
- Package:
- 8-XFDFN Exposed Pad
- Datasheet:
-
NCP154MX330280TAG.pdf
- Description:
- IC REG LINEAR 2.8V/3.3V 8XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:126,000
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Product details
Overview
NCP154MX330280TAG from onsemi is a dual-output, 300 mA low-dropout linear voltage regulator with independent IN1/IN2 inputs and fixed 3.3 V / 2.8 V outputs. It delivers ultra-low noise (75 µVRMS, 10 Hz–100 kHz), high PSRR (75 dB at 1 kHz), and adaptive ground current (55 µA typical per channel) for RF-sensitive battery-powered systems. Used in smartphone baseband and RF power domains where clean, isolated dual-rail supply is critical.
For engineers reviewing the NCP154MX330280TAG datasheet, pinout, applications, or equivalent options, key selection criteria include dual-input independence, active output discharge (50 Ω), thermal shutdown (160 °C), dropout voltage (140 mV typical at 300 mA for 3.3 V), and XDFN8 1.2 × 1.6 mm package compatibility with space-constrained PCB layouts.
Technical Context
The NCP154MX330280TAG integrates two fully independent LDO channels-each with dedicated PMOS pass transistor, bandgap reference, enable logic, current limit, and thermal shutdown. Input voltage range is 1.9 V to 5.25 V per channel, supporting mixed-supply systems like 3.3 V I/O + 2.8 V RF front-end.
Each channel features active discharge via internal 50 Ω switch when EN < 0.4 V, enabling fast turn-off without external circuitry. Stability is guaranteed with only 1 µF ceramic output capacitor per rail, eliminating need for noise-bypass caps despite ultra-low 75 µVRMS output noise.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.3 V (OUT1) and 2.8 V (OUT2), ±2% accuracy over −40°C to +85°C - enables direct powering of core logic and RF ICs without external feedback. |
| Max Output Current | 300 mA per channel - sufficient for modem baseband processors and 2.4 GHz transceivers under peak load. |
| Dropout Voltage | 140 mV typical at 300 mA for 3.3 V output - allows operation down to 3.44 V input, extending battery runtime in Li-ion systems. |
| PSRR | 75 dB at 1 kHz - suppresses switching noise from adjacent DC-DC converters feeding the same battery rail. |
| Quiescent Current | 55 µA per channel (typical) - minimizes standby drain in always-on cellular modules. |
| Output Noise | 75 µVRMS (10 Hz–100 kHz) - meets stringent spectral purity requirements for LTE/Wi-Fi RF receivers. |
| Enable Threshold | EN high = >0.9 V, EN low = <0.4 V - compatible with standard GPIOs and supports independent channel sequencing. |
Pinout & Package
Package: XDFN8 1.2 × 1.6 mm (Case 711AS), thermally enhanced with exposed pad tied to GND for effective heat dissipation in compact mobile PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, EP | GND | Power ground terminals; EP must be soldered to PCB copper plane for thermal and electrical integrity - reduces θJA to 160°C/W. |
| 2 | OUT1 | 3.3 V regulated output; requires 1 µF ceramic capacitor to GND for stability - supports 300 mA load with <15 mV load regulation. |
| 3 | OUT2 | 2.8 V regulated output; independent from OUT1 - enables simultaneous power to RF PA and baseband ASIC without cross-talk. |
| 5 | EN2 | Enable for OUT2; <0.4 V disables OUT2 and activates 50 Ω active discharge - ensures rapid rail collapse during sleep mode. |
| 6 | IN2 | Input for OUT2 channel; accepts 1.9–5.25 V - allows separate battery or DC-DC source for RF domain. |
| 7 | IN1 | Input for OUT1 channel; electrically isolated from IN2 - prevents noise coupling between digital and analog supply domains. |
| 8 | EN1 | Enable for OUT1; >0.9 V enables regulation - supports staggered power-up sequences in multi-rail SoC systems. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent inputs | Enables true supply domain isolation - e.g., IN1 from main PMIC, IN2 from dedicated RF buck converter. |
| Active output discharge | 50 Ω internal discharge path per channel - eliminates need for external pull-down resistors in fast-turnoff applications like Bluetooth LE advertising intervals. |
| Stable with 1 µF ceramic COUT | Reduces BOM count and board area vs. legacy LDOs requiring ≥10 µF tantalum - supports 0402-size MLCCs. |
| Adaptive ground current | 55 µA/channel at light load, rising to 110 µA at full disable - extends battery life in intermittently active IoT sensors. |
| Thermal shutdown with hysteresis | Triggers at 160 °C, resets at 140 °C - protects against sustained short-circuit faults without latch-up or manual reset. |
Applications
| Smartphone Baseband Power | Wi-Fi 6/Bluetooth 5 Coexistence |
|---|---|
Use Scenario: Powering application processor I/O and memory interfaces in LTE/5G smartphones. IC Role / Device Role / Timing Role: Dual-rail LDO delivering clean 3.3 V for SDIO interface and 2.8 V for LPDDR I/O buffers. Use Value: Independent IN1/IN2 inputs prevent noise injection from noisy PMIC rails; 75 dB PSRR maintains signal integrity during simultaneous transmit/receive. | Use Scenario: Supplying concurrent Wi-Fi 6 and Bluetooth 5.3 radios sharing a single battery. IC Role / Device Role / Timing Role: Isolated 3.3 V (Wi-Fi PHY) and 2.8 V (BT controller) rails with fast enable/disable sequencing. Use Value: Active discharge ensures BT radio powers down within 10 µs after EN deassertion - critical for meeting Bluetooth LE connection interval timing. |
| Portable Medical Sensor Hub | Industrial Handheld Scanner |
Use Scenario: Powering ultra-low-noise analog front-end (AFE) and BLE MCU in wearable ECG monitors. IC Role / Device Role / Timing Role: 3.3 V rail for BLE SoC, 2.8 V rail for precision ADC and op-amp signal chain. Use Value: 75 µVRMS output noise avoids degradation of microvolt-level biopotential measurements. | Use Scenario: Supplying barcode scanner engine (laser driver + imager) and ARM Cortex-M host in rugged handheld terminals. IC Role / Device Role / Timing Role: 3.3 V for imager sensor interface, 2.8 V for laser diode bias control with independent enable. Use Value: Dual enable pins allow laser activation only during scan trigger - reducing average power by >40% vs. always-on supply. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6216D332MR-G | Single-input dual-output; no independent EN pins; 200 mA per channel; 60 dB PSRR at 1 kHz | Lacks channel isolation and active discharge - unsuitable for RF coexistence or fast-sleep applications | Select only if cost sensitivity outweighs need for independent enable and RF-grade noise performance. |
| Richtek RT9080L-3328 | 300 mA dual LDO; independent EN; but 500 mV dropout at 300 mA (vs. 140 mV); 65 dB PSRR | Higher dropout limits usable input range in 3.6 V nominal Li-ion systems; lower PSRR increases susceptibility to PMIC ripple | Acceptable for non-RF applications where 3.3 V/2.8 V rail separation is needed but noise and efficiency are secondary. |
Compared with XC6216D332MR-G and RT9080L-3328, the NCP154MX330280TAG uniquely combines independent dual inputs, ultra-low dropout, and RF-grade PSRR/noise - making it the only option for high-integration mobile SoC power domains requiring simultaneous clean 3.3 V and 2.8 V rails.
Availability
NCP154MX330280TAG is available at Aetrix Electronics and suitable for smartphone baseband power, Wi-Fi/Bluetooth coexistence designs, and portable medical sensor hubs requiring stable component supply across long production lifecycles.
Supply support for NCP154MX330280TAG 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 is a global semiconductor supplier delivering energy-efficient silicon solutions for automotive, industrial, cloud, and edge applications.
The NCP154 product line is designed for high-performance, low-power portable electronics - specifically targeting dual-rail power needs in space-constrained RF and mobile platforms where noise, efficiency, and reliability are critical.
FAQ
What are the exact output voltages of the NCP154MX330280TAG?
The NCP154MX330280TAG provides precisely 3.3 V on OUT1 and 2.8 V on OUT2, with ±2% tolerance over −40°C to +85°C operating temperature. These values are factory-trimmed and do not require external resistive feedback networks - simplifying layout and improving long-term stability versus adjustable LDOs.
Does the NCP154MX330280TAG support independent enable control for each output?
Yes, the NCP154MX330280TAG has dedicated EN1 and EN2 pins that independently control OUT1 and OUT2. Driving EN1 >0.9 V enables 3.3 V regulation; driving EN2 <0.4 V disables 2.8 V output and activates its 50 Ω active discharge path - enabling precise power sequencing in multi-rail systems.
What is the minimum output capacitance required for stability with the NCP154MX330280TAG?
The NCP154MX330280TAG is stable with a minimum 1 µF X5R or X7R ceramic capacitor on each output. The device remains stable down to 0.33 µF effective capacitance (accounting for DC bias and temperature derating), making it compatible with small 0201-case MLCCs in ultra-dense layouts.
How does the NCP154MX330280TAG handle thermal overload conditions?
The NCP154MX330280TAG incorporates per-channel thermal shutdown triggered at 160 °C junction temperature, with 20 °C hysteresis (reset at 140 °C). If one channel overheats, only that channel shuts down - the other continues regulating, ensuring system-level fault containment without full power loss.
Can the NCP154MX330280TAG operate from a single shared input supply?
Yes, the NCP154MX330280TAG can accept identical input voltages on IN1 and IN2 - for example, both tied to a 3.8 V PMIC output. However, its dual-input architecture also supports true isolation: IN1 may connect to a main battery rail while IN2 connects to a dedicated RF buck converter, preventing noise coupling between domains.
NCP154MX330280TAG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-XFDFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 2
- Voltage - Input (Max):
- 5.25V
- Voltage - Output (Min/Fixed):
- 2.8V, 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.27V @ 300mA, 0.25V @ 300mA
- Current - Output:
- 300mA, 300mA
- Current - Quiescent (Iq):
- 100 µA
- Current - Supply (Max):
- 200 µA
- PSRR:
- 75dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-XDFN (1.6x1.2)
NCP154MX330280TAG FAQ
1.How can I place an order for NCP154MX330280TAG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP154MX330280TAG 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 NCP154MX330280TAG reliable?
The price and inventory of NCP154MX330280TAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP154MX330280TAG is usually 5 days.
3.What payment methods are accepted for NCP154MX330280TAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP154MX330280TAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP154MX330280TAG?
NCP154MX330280TAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP154MX330280TAG 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 NCP154MX330280TAG?
For technical support, including NCP154MX330280TAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP154MX330280TAG requirements.
6.How does Aetrix verify that NCP154MX330280TAG is sourced from the original manufacturer or authorized distributors?
All NCP154MX330280TAG 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 NCP154MX330280TAG meets industry standards.
7.What is the process for return or replacement of NCP154MX330280TAG?
All NCP154MX330280TAG units undergo pre-shipment inspection (PSI). If there is an issue with NCP154MX330280TAG, 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 NCP154MX330280TAG part is unused and in its original packaging.
Return procedure for NCP154MX330280TAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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