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onsemi NCP154MX300180TAG
- Part No.:
- NCP154MX300180TAG
- Manufacturer:
- onsemi
- Package:
- 8-XFDFN Exposed Pad
- Datasheet:
-
NCP154MX300180TAG.pdf
- Description:
- IC REG LINEAR 1.8V/3V 8XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,972
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Product details
Overview
NCP154MX300180TAG from onsemi is a dual-output, 300 mA low-dropout linear voltage regulator with independent IN1/IN2 inputs and fixed output voltages of 3.0 V (OUT1) and 1.8 V (OUT2). It delivers ultra-low noise (75 µVRMS, 10 Hz–100 kHz), high PSRR (75 dB at 1 kHz), and very low dropout (150 mV typical at 300 mA for 3.0 V output), making it ideal for RF-sensitive battery-powered applications such as smartphone baseband and application processors.
For engineers reviewing the NCP154MX300180TAG datasheet, pinout, applications, or equivalent options, key selection criteria include dual independent input support, adaptive ground current for light-load efficiency, active output discharge, thermal shutdown, and stable operation with only 1 µF ceramic output capacitors per channel.
Technical Context
The NCP154MX300180TAG integrates two fully independent LDO channels-each with its own PMOS pass transistor, bandgap reference, enable logic, and protection circuitry-including current limiting (400 mA typ.) and thermal shutdown (160 °C trip). Its architecture enables simultaneous regulation of disparate supply rails without cross-talk.
Each channel features dedicated EN1/EN2 pins with precise thresholds (0.9 V high, 0.4 V low), active discharge via a 50 Ω internal switch, and stability with minimal 1 µF X5R/X7R ceramic output capacitance-no external bypass capacitor required for ultra-low noise performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 300 mA per channel - supports core logic and I/O rails in compact portable SoC designs. |
| Dropout Voltage | 150 mV typical at 300 mA for 3.0 V output - enables efficient regulation from 3.15 V input, extending battery runtime. |
| PSRR | 75 dB at 1 kHz - suppresses switching noise from adjacent DC-DC converters in mixed-signal systems. |
| Output Noise | 75 µVRMS (10 Hz–100 kHz) - meets stringent RF transceiver and ADC reference supply requirements. |
| Quiescent Current | 55 µA per channel - minimizes standby power in always-on subsystems like Bluetooth LE or sensor hubs. |
| Enable Threshold | 0.9 V (high), 0.4 V (low) - compatible with standard GPIOs and allows clean sequencing control. |
| Thermal Shutdown | 160 °C trip, 20 °C hysteresis - protects against sustained overload or poor PCB thermal design without latch-up. |
Pinout & Package
Package: XDFN8 1.2 × 1.6 mm (Case 711AS), thermally enhanced with exposed pad tied to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, EP | GND / Exposed Pad | Power ground return and primary thermal path - must be soldered to large copper plane for <160 °C/W θJA. |
| 2 | OUT1 | Regulated 3.0 V output - requires 1 µF ceramic capacitor to GND for stability and transient response. |
| 3 | OUT2 | Regulated 1.8 V output - independently regulated; decoupled with separate 1 µF ceramic capacitor. |
| 5 | EN2 | Enable for OUT2 - drives >0.9 V to activate, <0.4 V to disable with active discharge to GND. |
| 6 | IN2 | Input for OUT2 - accepts 1.9–5.25 V; requires local 1 µF ceramic capacitor for noise filtering. |
| 7 | IN1 | Input for OUT1 - electrically isolated from IN2; enables flexible multi-rail power sequencing. |
| 8 | EN1 | Enable for OUT1 - independent control allows staggered startup or dynamic rail shutdown. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent inputs | IN1 and IN2 accept separate sources (e.g., main battery and backup rail), enabling fault-isolated dual-supply architectures. |
| Adaptive ground current | Reduces IQ to 55 µA/channel at light load - extends battery life in sleep modes without sacrificing wake-up speed. |
| Active output discharge | 50 Ω internal switch pulls OUT1/OUT2 to GND when disabled - prevents floating outputs and ensures fast, controlled turn-off. |
| No noise-bypass capacitor needed | Ultra-low 75 µVRMS noise achieved with internal design - eliminates BOM cost and board space for external RC filters. |
| Stable with 1 µF ceramic COUT | Eliminates need for larger or specialized capacitors - simplifies layout and reduces cost in space-constrained mobile designs. |
Applications
| Smartphone Application Processor Core | Wireless LAN Baseband IC |
|---|---|
Use Scenario: Powering ARM Cortex-A series CPU cores requiring tightly regulated 3.0 V at up to 300 mA with minimal ripple. IC Role / Device Role / Timing Role: Primary LDO supplying critical digital core voltage with fast load transient response (<50 mV deviation). Use Value: Maintains 3.0 V ±2% accuracy across −40°C to +85°C while rejecting noise from shared PMIC switching rails. | Use Scenario: Delivering clean 1.8 V supply to WLAN MAC/PHY ICs operating in 2.4 GHz/5 GHz bands. IC Role / Device Role / Timing Role: Low-noise analog/RF domain regulator decoupled from noisy digital supplies. Use Value: 75 dB PSRR at 1 kHz and 75 µVRMS noise prevent EVM degradation and maintain WLAN sensitivity. |
| Bluetooth Low Energy SoC | Industrial IoT Sensor Hub |
Use Scenario: Dual-rail power for BLE SoC with 3.0 V radio and 1.8 V MCU core, operating from single-cell Li-ion. IC Role / Device Role / Timing Role: Single-package dual-LDO replacing discrete solutions - enables independent enable/disable sequencing. Use Value: EN1/EN2 control allows radio-only wake-up (OUT2 active) while keeping MCU rail (OUT1) off, reducing system standby current. | Use Scenario: Powering ultra-low-power sensor fusion node with MEMS accelerometer (1.8 V) and microcontroller (3.0 V). IC Role / Device Role / Timing Role: High-reliability, thermally robust regulator for extended-life battery deployments. Use Value: Thermal shutdown (160 °C) and current limit (400 mA) protect against sensor short-circuits or ambient overtemperature events. |
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 |
|---|---|---|---|
| TI TPS7A202818DQNR | Fixed 2.8 V / 1.8 V outputs; lower IQ (65 nA shutdown), but no active discharge and 200 mA per channel rating. | Suitable for lower-current BLE peripherals; not recommended for 300 mA loads or fast rail turn-off requirements. | Select NCP154MX300180TAG when 300 mA per rail and active discharge are mandatory. |
| Rohm BD3572FP-E2 | Fixed 3.0 V / 1.8 V outputs; higher dropout (250 mV at 300 mA), no independent inputs, and 100 µA IQ. | Fits cost-sensitive industrial applications where PSRR (>60 dB) and ultra-low noise are secondary. | Choose NCP154MX300180TAG for RF-critical designs requiring 75 dB PSRR and 75 µVRMS noise. |
Compared with TPS7A202818DQNR and BD3572FP-E2, the NCP154MX300180TAG uniquely combines dual independent inputs, 300 mA per channel, active discharge, and industry-leading 75 dB PSRR - making it optimal for high-performance portable RF systems demanding both efficiency and signal integrity.
Availability
NCP154MX300180TAG is available at Aetrix Electronics and suitable for smartphone power management, wireless baseband ICs, and industrial sensor hub designs requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for NCP154MX300180TAG 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 IoT applications.
The NCP154MX300180TAG belongs to onsemi's high-performance LDO family designed specifically for battery-powered RF and portable electronics - emphasizing ultra-low noise, high PSRR, and minimal quiescent current without compromising output current capability.
FAQ
What are the fixed output voltages of the NCP154MX300180TAG?
The NCP154MX300180TAG provides two fixed, factory-trimmed output voltages: 3.0 V on OUT1 and 1.8 V on OUT2. These values are specified in the Ordering Information table (Table 5) and confirmed across electrical characteristics including line/load regulation and temperature drift testing. The device does not support adjustable outputs or external feedback networks.
Does the NCP154MX300180TAG require external noise-bypass capacitors?
No, the NCP154MX300180TAG achieves ultra-low 75 µVRMS output noise (10 Hz–100 kHz) without requiring external noise-bypass capacitors. This is enabled by its internal architecture and is explicitly stated in the datasheet's Features section and General description - eliminating BOM cost and PCB area typically needed for RC filters in RF-sensitive applications.
How does the active discharge feature work on the NCP154MX300180TAG?
When EN1 or EN2 falls below 0.4 V, the corresponding channel activates an internal 50 Ω discharge switch between OUT1 or OUT2 and GND. This rapidly pulls the output voltage to ground, preventing floating states and ensuring predictable power-down behavior - critical for systems requiring strict rail sequencing or avoiding back-powering of downstream circuitry.
What is the maximum input voltage the NCP154MX300180TAG can tolerate?
The NCP154MX300180TAG supports an absolute maximum input voltage of 6 V on both IN1 and IN2 pins, as specified in Table 2 (Absolute Maximum Ratings). However, the recommended operating input range is 1.9 V to 5.25 V per channel - exceeding 5.25 V may compromise reliability or parametric performance even if within absolute limits.
Is the NCP154MX300180TAG stable with 1 µF ceramic output capacitors?
Yes, the NCP154MX300180TAG is explicitly characterized and guaranteed stable with ≥1 µF X5R or X7R ceramic output capacitors per channel, as confirmed in the Features list, Electrical Characteristics (Table 4), and Application Information section. It remains stable down to 0.33 µF to accommodate DC bias and temperature-induced capacitance loss in small-package MLCCs.
NCP154MX300180TAG 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):
- 1.8V, 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.39V @ 300mA, 0.26V @ 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)
NCP154MX300180TAG FAQ
1.How can I place an order for NCP154MX300180TAG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP154MX300180TAG 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 NCP154MX300180TAG reliable?
The price and inventory of NCP154MX300180TAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP154MX300180TAG is usually 5 days.
3.What payment methods are accepted for NCP154MX300180TAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP154MX300180TAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP154MX300180TAG?
NCP154MX300180TAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP154MX300180TAG 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 NCP154MX300180TAG?
For technical support, including NCP154MX300180TAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP154MX300180TAG requirements.
6.How does Aetrix verify that NCP154MX300180TAG is sourced from the original manufacturer or authorized distributors?
All NCP154MX300180TAG 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 NCP154MX300180TAG meets industry standards.
7.What is the process for return or replacement of NCP154MX300180TAG?
All NCP154MX300180TAG units undergo pre-shipment inspection (PSI). If there is an issue with NCP154MX300180TAG, 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 NCP154MX300180TAG part is unused and in its original packaging.
Return procedure for NCP154MX300180TAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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