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onsemi NCP154MX180300TAG
- Part No.:
- NCP154MX180300TAG
- Manufacturer:
- onsemi
- Package:
- 8-XFDFN Exposed Pad
- Datasheet:
-
NCP154MX180300TAG.pdf
- Description:
- IC REG LINEAR 1.8V/3V 8XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,559
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Product details
Overview
NCP154MX180300TAG from onsemi is a dual-output, 300 mA low-dropout linear voltage regulator with independent IN1/IN2 inputs and fixed 1.8 V / 3.0 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 for 3.0 V output), making it ideal for RF-sensitive battery-powered applications such as smartphones and wireless handsets.
For engineers reviewing the NCP154MX180300TAG 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 NCP154MX180300TAG 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 gate drive.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.8 V (OUT1) and 3.0 V (OUT2) - fixed, factory-trimmed, ±2% accuracy over −40°C to +85°C for VOUT > 2 V |
| Max Output Current | 300 mA per channel - sustained delivery with <140 mV dropout at 3.0 V output and full load |
| Quiescent Current | 55 µA per channel - enables multi-day battery life in always-on subsystems like Bluetooth® or sensor wake logic |
| PSRR | 75 dB at 1 kHz - suppresses switching noise from adjacent DC-DC converters in mixed-power-rail systems |
| Noise (RMS) | 75 µV (10 Hz–100 kHz) - eliminates need for post-regulator filtering in RF power amplifier bias rails |
| Dropout Voltage | 140 mV typical at 300 mA for 3.0 V output - allows operation down to VIN = 3.14 V, extending usable battery range |
| Enable Threshold | EN high ≥ 0.9 V, EN low ≤ 0.4 V - compatible with 1.8 V GPIO and supports direct tie-to-IN when enable not required |
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 - pins 1 & 4 are signal GND; EP is thermal pad requiring solder connection to PCB ground plane |
| 2 | OUT1 | Regulated 1.8 V output - requires 1 µF X5R/X7R ceramic capacitor to GND for stability |
| 3 | OUT2 | Regulated 3.0 V output - independently regulated, stable with same 1 µF output cap |
| 5 | EN2 | Enable for OUT2 - <0.4 V disables OUT2 and activates 50 Ω active discharge to GND |
| 6 | IN2 | Input for OUT2 - accepts 1.9–5.25 V; decoupling cap recommended at pin |
| 7 | IN1 | Input for OUT1 - independent of IN2, enabling dual-input power domain separation |
| 8 | EN1 | Enable for OUT1 - identical logic to EN2; supports independent channel sequencing |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent inputs | IN1 and IN2 allow separate power domains (e.g., battery + USB VBUS) to feed each LDO independently |
| Active output discharge | 50 Ω internal discharge path pulls OUT1/OUT2 to GND within microseconds upon disable - prevents floating rails and ensures clean power-down sequencing |
| Stable with 1 µF ceramic cap | Eliminates need for larger or higher-ESR capacitors - reduces BOM count and PCB area in space-constrained mobile designs |
| Adaptive ground current | Reduces IQ to 55 µA per channel at light load while maintaining regulation - extends standby time without sacrificing turn-on speed |
| Thermal shutdown with hysteresis | Shuts down individual channel at 160°C; auto-restarts at 140°C - protects against localized overheating without affecting the other channel |
Applications
| Smartphone Baseband Power | Wireless Handset RF Front-End |
|---|---|
Use Scenario: Supplying core logic (1.8 V) and I/O (3.0 V) rails in LTE/5G smartphone application processors. IC Role / Device Role / Timing Role: Dual LDO providing isolated, low-noise, sequenced power to SoC domains with independent enable control. Use Value: Enables simultaneous 1.8 V core and 3.0 V interface rail delivery in <2 mm² footprint, eliminating need for two discrete regulators and reducing layout complexity. | Use Scenario: Biasing power amplifier (PA) drivers and low-noise amplifiers (LNAs) in Bluetooth®/ZigBee® modules. IC Role / Device Role / Timing Role: Ultra-low-noise 3.0 V rail for PA bias and clean 1.8 V supply for LNA analog front-end. Use Value: 75 µV RMS noise and 75 dB PSRR prevent AM-to-PM distortion and maintain EVM performance in 2.4 GHz transceivers. |
| Tablet Application Processor Core | Portable Medical Sensor Hub |
Use Scenario: Powering ARM Cortex-A series CPU cores (1.8 V) and DDR I/O (3.0 V) in thin tablet platforms. IC Role / Device Role / Timing Role: Dual-output LDO delivering tightly regulated, fast-transient-capable supplies with independent enable for dynamic voltage scaling. Use Value: 140 mV dropout at 300 mA allows operation down to 3.14 V input - maximizes usable capacity from single-cell Li-ion batteries. | Use Scenario: Providing precision analog (1.8 V) and digital (3.0 V) rails for wearable ECG/PPG sensor nodes. IC Role / Device Role / Timing Role: Low-IQ dual regulator powering ADC reference and microcontroller in battery-operated clinical-grade devices. Use Value: 55 µA/channel quiescent current enables >7-day continuous monitoring on coin-cell batteries without compromising signal integrity. |
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 |
|---|---|---|---|
| TPS7A202830DQNR | 1.8 V / 3.0 V outputs; 300 mA per channel; 6.5 µVRMS noise (lower), but requires 2.2 µF min COUT; no active discharge | Lacks active discharge and independent IN pins - unsuitable for true dual-input or fast power-down sequencing | Select when ultra-low noise dominates over discharge control and input flexibility |
| MCP1826S-180302SK | 1.8 V / 3.0 V outputs; 300 mA per channel; 45 µVRMS noise; includes active discharge but only one shared enable pin | Single EN pin prevents independent channel control; no dual-input capability | Select when cost sensitivity outweighs need for per-channel enable and input isolation |
Compared with TPS7A202830DQNR and MCP1826S-180302SK, the NCP154MX180300TAG uniquely combines dual independent inputs, per-channel enable with active discharge, and 75 µV noise - enabling robust, space-efficient dual-rail power in RF-critical portable systems where sequencing, noise, and input domain separation are co-constrained.
Availability
NCP154MX180300TAG is available at Aetrix Electronics and suitable for smartphone baseband power, wireless handset RF front-end, and portable medical sensor hub applications requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for NCP154MX180300TAG 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, sensors, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The NCP154MX180300TAG belongs to onsemi's high-performance LDO portfolio, designed specifically for battery-powered portable electronics demanding ultra-low noise, dual-rail flexibility, and minimal solution size in tight thermal envelopes.
FAQ
What are the fixed output voltages of the NCP154MX180300TAG?
The NCP154MX180300TAG provides two precisely trimmed, fixed output voltages: 1.8 V on OUT1 and 3.0 V on OUT2. These values are factory-set and specified with ±2% accuracy over −40°C to +85°C for VOUT > 2 V, and ±60 mV for VOUT ≤ 2 V. The marking code "DN" on the device package confirms this 1.8 V / 3.0 V configuration.
Does the NCP154MX180300TAG require external noise-bypass capacitors?
No, the NCP154MX180300TAG does not require external noise-bypass capacitors. Its internal architecture achieves ultra-low 75 µVRMS output noise (10 Hz–100 kHz) and 75 dB PSRR at 1 kHz without additional capacitors - a key differentiator confirmed in the datasheet's "Features" and "Typical Characteristics" sections.
How does the active discharge function work on the NCP154MX180300TAG?
When either EN1 or EN2 is driven below 0.4 V, the corresponding output (OUT1 or OUT2) is disabled and its internal 50 Ω active discharge transistor connects the output to GND. This rapidly discharges the output capacitor, ensuring fast, controlled power-down - critical for preventing latch-up or undefined states in downstream logic powered by NCP154MX180300TAG.
What is the minimum input voltage required for the NCP154MX180300TAG to regulate 3.0 V output at full load?
To maintain regulation of the 3.0 V output at 300 mA load, the NCP154MX180300TAG requires a minimum input voltage of 3.14 V (3.0 V + 140 mV typical dropout). The datasheet specifies 140 mV typical dropout at 300 mA for VOUT = 3.0 V, with max 260 mV across temperature - so design margin should target ≥3.3 V input for robust operation.
Can the NCP154MX180300TAG operate with only 1 µF output capacitors?
Yes, the NCP154MX180300TAG is explicitly designed and characterized to remain stable with only 1 µF X5R or X7R ceramic output capacitors on both OUT1 and OUT2. The datasheet states "Stable with a 1 µF Ceramic Output Capacitor" and confirms minimum effective capacitance of 0.33 µF accounts for DC bias and temperature effects - making it ideal for compact layouts.
NCP154MX180300TAG 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)
NCP154MX180300TAG FAQ
1.How can I place an order for NCP154MX180300TAG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP154MX180300TAG 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 NCP154MX180300TAG reliable?
The price and inventory of NCP154MX180300TAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP154MX180300TAG is usually 5 days.
3.What payment methods are accepted for NCP154MX180300TAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP154MX180300TAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP154MX180300TAG?
NCP154MX180300TAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP154MX180300TAG 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 NCP154MX180300TAG?
For technical support, including NCP154MX180300TAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP154MX180300TAG requirements.
6.How does Aetrix verify that NCP154MX180300TAG is sourced from the original manufacturer or authorized distributors?
All NCP154MX180300TAG 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 NCP154MX180300TAG meets industry standards.
7.What is the process for return or replacement of NCP154MX180300TAG?
All NCP154MX180300TAG units undergo pre-shipment inspection (PSI). If there is an issue with NCP154MX180300TAG, 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 NCP154MX180300TAG part is unused and in its original packaging.
Return procedure for NCP154MX180300TAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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