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onsemi NCP154MX330330TAG
- Part No.:
- NCP154MX330330TAG
- Manufacturer:
- onsemi
- Package:
- 8-XFDFN Exposed Pad
- Datasheet:
-
NCP154MX330330TAG.pdf
- Description:
- IC REG LINEAR 3.3V/3.3V 8XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,878
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Product details
Overview
NCP154MX330330TAG from onsemi is a dual-output, 300 mA low-dropout linear voltage regulator with independent IN1/IN2 inputs and fixed 3.3 V / 3.3 V outputs. It delivers ultra-low noise (75 µVRMS, 10 Hz–100 kHz), high PSRR (75 dB at 1 kHz), and very low dropout (140 mV typical at 300 mA), making it ideal for RF-sensitive battery-powered applications such as smartphones and wireless handsets.
For engineers reviewing the NCP154MX330330TAG datasheet, pinout, applications, or equivalent options, key selection criteria include dual-channel enable control, adaptive ground current for light-load efficiency, active output discharge, thermal shutdown, and stability with only 1 µF ceramic output capacitors.
Technical Context
The NCP154MX330330TAG integrates two independent PMOS LDO regulators sharing a common ground but with separate input, enable, and output pins. Each channel features dedicated bandgap reference, current-limit protection (400 mA typ), and thermal shutdown (160°C trip, 20°C hysteresis).
Its adaptive ground current architecture reduces quiescent current to 55 µA per channel under light load, while maintaining fast transient response and ultra-low noise without requiring external bypass capacitors - enabled by internal noise-suppression design and optimized pass transistor layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V / 3.3 V - enables dual-rail power for baseband processors and RF transceivers without external feedback resistors. |
| Max Output Current | 300 mA per channel - supports simultaneous powering of core logic and I/O peripherals in compact portable devices. |
| Dropout Voltage | 140 mV typical at 300 mA - allows operation down to VIN = 3.44 V, extending battery runtime in single-cell Li-ion systems. |
| PSRR | 75 dB at 1 kHz - suppresses switching noise from DC-DC converters feeding the LDO inputs, critical for RF front-end stability. |
| Output Noise | 75 µVRMS (10 Hz–100 kHz) - meets stringent spectral purity requirements for PLLs, ADCs, and RF synthesizers. |
| Quiescent Current | 55 µA per channel - minimizes standby power loss in always-on subsystems like Bluetooth® or ZigBee® radios. |
| Enable Threshold | VEN_HI = 0.9 V, VEN_LO = 0.4 V - ensures robust digital interface compatibility with 1.8 V/3.3 V GPIOs and eliminates floating-input risk. |
Pinout & Package
Package: XDFN8 1.2 × 1.6 mm (Case 711AS), thermally enhanced with exposed pad tied to GND for efficient heat dissipation (θJA = 160°C/W on 1 oz FR4).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, EP | GND | Power ground terminals - multiple GND pins and exposed pad reduce impedance and improve thermal performance. |
| 2 | OUT1 | Regulated 3.3 V output for Channel 1 - requires 1 µF ceramic capacitor to GND for stability. |
| 3 | OUT2 | Regulated 3.3 V output for Channel 2 - independently regulated; immune to load transients on OUT1. |
| 5 | EN2 | Enable input for Channel 2 - <0.4 V disables OUT2 and activates 50 Ω active discharge to GND. |
| 6 | IN2 | Input supply for Channel 2 - accepts 1.9–5.25 V; decoupling capacitor required near pin. |
| 7 | IN1 | Input supply for Channel 1 - electrically isolated from IN2 to support dual-source or noise-isolated rails. |
| 8 | EN1 | Enable input for Channel 1 - enables independent sequencing and power gating of each output. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent inputs | Enables separate power domains (e.g., battery + USB) or noise isolation between analog/digital rails. |
| Active output discharge | 50 Ω internal discharge path pulls OUTx to GND in <1 ms upon disable - prevents floating voltages and ensures clean power-down sequencing. |
| Stable with 1 µF ceramic COUT | Eliminates need for larger or higher-ESR capacitors, reducing BOM count and PCB area in space-constrained designs. |
| Adaptive ground current | Reduces IQ to 55 µA per channel at light load while maintaining full regulation - extends battery life in sleep modes. |
| Thermal shutdown with hysteresis | 160°C trip / 140°C reset prevents thermal runaway and enables automatic recovery after cooling - no system-level intervention needed. |
Applications
| Smartphone Baseband Power | Wireless LAN RF Front-End |
|---|---|
Use Scenario: Dual-rail power delivery to application processor core (VDD_CORE) and I/O (VDD_IO) in LTE/5G smartphones. IC Role / Device Role / Timing Role: Dual-channel LDO providing tightly regulated, low-noise 3.3 V supplies with independent enable control for power sequencing. Use Value: Eliminates need for two discrete LDOs; shared thermal design reduces footprint while maintaining PSRR >75 dB to protect sensitive RF receivers. | Use Scenario: Clean biasing of WLAN transceiver ICs (e.g., Wi-Fi 6/6E RFICs) requiring ultra-low noise and fast transient response. IC Role / Device Role / Timing Role: Low-noise 3.3 V regulator for RF synthesizer VCO and LNA stages, with active discharge to prevent leakage during sleep. Use Value: 75 µVRMS noise and 75 dB PSRR ensure minimal phase noise degradation; 140 mV dropout enables operation from partially discharged batteries. |
| Bluetooth® Audio SoC | ZigBee® Sensor Node |
Use Scenario: Powering Bluetooth audio SoCs (e.g., CSR8675, DA14585) with integrated DSP and Class-D amplifier. IC Role / Device Role / Timing Role: Dual-output LDO supplying 3.3 V to digital core and 3.3 V to audio codec/ADC section with independent enable. Use Value: Adaptive ground current cuts standby IQ to 110 µA total (both channels), enabling multi-week battery life in true wireless stereo earbuds. | Use Scenario: Long-life battery-powered ZigBee® sensor nodes (temperature/humidity/motion) operating for >5 years on CR2032. IC Role / Device Role / Timing Role: Ultra-low-IQ dual LDO delivering 3.3 V to MCU and 3.3 V to RF transceiver, with active discharge preventing residual current draw. Use Value: 10 nA shutdown current per channel and 55 µA light-load IQ maximize energy efficiency; thermal shutdown protects against enclosure overheating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6216D333MR-G | Single-input, single-enable dual-output LDO; 200 mA per channel; no active discharge; 60 dB PSRR @ 1 kHz. | Lacks independent IN/EN pins and active discharge - unsuitable for noise-isolated or fast-sequencing designs. | Select when cost sensitivity outweighs need for independent rail control or RF-grade PSRR. |
| Richtek RT9080L-3333 | 300 mA dual LDO with independent EN; 70 dB PSRR @ 1 kHz; 90 µVRMS noise; no adaptive IQ. | Higher noise and fixed 80 µA IQ limit - less optimal for ultra-low-power sleep modes. | Choose when board space allows slightly larger package (SOT-23-8) and moderate noise specs suffice. |
Compared with XC6216D333MR-G and RT9080L-3333, the NCP154MX330330TAG uniquely combines independent dual inputs, adaptive ground current, active discharge, and industry-leading 75 dB PSRR - making it the preferred choice for high-integration, RF-critical portable designs where power integrity and sequencing flexibility are mandatory.
Availability
NCP154MX330330TAG is available at Aetrix Electronics and suitable for smartphone baseband power, wireless LAN RF front-end, and Bluetooth® audio SoC applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for NCP154MX330330TAG 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 technologies for automotive, industrial, cloud, medical, and IoT applications.
The NCP154MX330330TAG belongs to onsemi's high-performance LDO portfolio designed specifically for battery-powered RF and portable electronics - emphasizing ultra-low noise, high PSRR, and intelligent power management features.
FAQ
What output voltages does the NCP154MX330330TAG provide?
The NCP154MX330330TAG provides two fixed, independent 3.3 V outputs - one on OUT1 and one on OUT2. This dual 3.3 V configuration is laser-trimmed during manufacturing and requires no external feedback components. Both outputs maintain ±2% accuracy over −40°C to +85°C junction temperature and load conditions from 1 mA to 300 mA.
Does the NCP154MX330330TAG require external capacitors for stability?
Yes, the NCP154MX330330TAG requires a 1 µF X5R or X7R ceramic capacitor from each OUT pin to GND for stability, and a 1 µF ceramic capacitor from each IN pin to GND for noise filtering. The device is specifically designed to remain stable with these minimum values - no additional ESR or capacitance is needed, simplifying layout and reducing BOM cost.
How does the enable functionality work on the NCP154MX330330TAG?
The NCP154MX330330TAG has two independent enable pins: EN1 controls OUT1 and EN2 controls OUT2. Driving either EN pin above 0.9 V enables its respective output; driving it below 0.4 V disables the output and activates an internal 50 Ω discharge path to pull the output to GND. Each EN pin includes a 300 nA internal pull-down, ensuring safe default-off behavior if left unconnected.
What protection features are built into the NCP154MX330330TAG?
The NCP154MX330330TAG integrates per-channel thermal shutdown (160°C trip, 20°C hysteresis), output current limiting (400 mA typical), short-circuit protection (520 mA typical), and reverse-current blocking via the PMOS pass transistor body diode. These protections operate independently per channel - a fault on OUT1 does not affect OUT2 regulation or functionality.
Can the NCP154MX330330TAG be used with a single input supply?
Yes, the NCP154MX330330TAG supports single-supply operation: connect both IN1 and IN2 to the same source (e.g., a DC-DC converter output), then use EN1 and EN2 to independently control each 3.3 V rail. This configuration maintains full benefits - including independent sequencing, active discharge, and per-channel fault isolation - while simplifying the power architecture.
NCP154MX330330TAG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-XFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 2
- Voltage - Input (Max):
- 5.25V
- Voltage - Output (Min/Fixed):
- 3.3V, 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.25V @ 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)
NCP154MX330330TAG FAQ
1.How can I place an order for NCP154MX330330TAG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP154MX330330TAG 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 NCP154MX330330TAG reliable?
The price and inventory of NCP154MX330330TAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP154MX330330TAG is usually 5 days.
3.What payment methods are accepted for NCP154MX330330TAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP154MX330330TAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP154MX330330TAG?
NCP154MX330330TAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP154MX330330TAG 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 NCP154MX330330TAG?
For technical support, including NCP154MX330330TAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP154MX330330TAG requirements.
6.How does Aetrix verify that NCP154MX330330TAG is sourced from the original manufacturer or authorized distributors?
All NCP154MX330330TAG 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 NCP154MX330330TAG meets industry standards.
7.What is the process for return or replacement of NCP154MX330330TAG?
All NCP154MX330330TAG units undergo pre-shipment inspection (PSI). If there is an issue with NCP154MX330330TAG, 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 NCP154MX330330TAG part is unused and in its original packaging.
Return procedure for NCP154MX330330TAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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