My Inquiry
My Account
onsemi NCP154MX180280TAG
- Part No.:
- NCP154MX180280TAG
- Manufacturer:
- onsemi
- Package:
- 8-XFDFN Exposed Pad
- Datasheet:
-
NCP154MX180280TAG.pdf
- Description:
- IC REG LINEAR 1.8V/2.8V 8XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,980
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NCP154MX180280TAG from onsemi is a dual-output, 300 mA low-dropout linear voltage regulator with independent 1.8 V and 2.8 V outputs, ultra-low noise (75 µVRMS), 75 dB PSRR at 1 kHz, and adaptive ground current for battery-powered RF systems including smartphones and wireless handsets.
For engineers reviewing the NCP154MX180280TAG datasheet, pinout, applications, or equivalent options, key selection criteria include dual-channel enable control, 140–270 mV dropout at 300 mA per channel, XDFN8 1.2 × 1.6 mm package thermal performance, and active output discharge for fast turn-off in portable power sequencing.
Technical Context
The NCP154MX180280TAG integrates two independent PMOS LDO regulators sharing a common ground but with separate IN1/IN2 and EN1/EN2 pins, enabling asymmetric input sourcing and staggered power-up. Each channel features bandgap-referenced error amplifiers, current-limit protection (400 mA typ.), and thermal shutdown (160°C trip).
Its adaptive ground current architecture reduces quiescent current to 55 µA per channel under light load while maintaining 1.8 V/2.8 V output accuracy (±2% for VOUT > 2 V), and it achieves stable regulation with only 1 µF ceramic output capacitors-no external noise-bypass cap required due to integrated ultra-low-noise design.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.8 V (OUT1) and 2.8 V (OUT2); fixed, factory-trimmed, ±2% accuracy over −40°C to +85°C for VOUT > 2 V |
| Max Output Current | 300 mA per channel; supports simultaneous full-load operation with thermal derating per JA = 160°C/W |
| Dropout Voltage | 160–270 mV typical at 300 mA (VOUT = 2.8 V); enables operation from 3.0 V input with 2.8 V rail |
| PSRR | 75 dB at 1 kHz; suppresses switching noise from upstream DC-DC converters in mixed-signal SoC power domains |
| Output Noise | 75 µVRMS (10 Hz–100 kHz); sufficient for RF transceivers and ADC reference supplies without added filtering |
| Quiescent Current | 55 µA per channel (typ.) at no load; drops to 110 µA total when both EN pins high, critical for standby battery life |
| Enable Threshold | EN high = ≥0.9 V, EN low = ≤0.4 V; compatible with 1.8 V GPIOs and provides clean channel isolation |
Pinout & Package
Package: XDFN8 1.2 × 1.6 mm, 0.4 mm pitch, exposed pad (EP) tied to GND for thermal dissipation (JA = 160°C/W on 1 oz FR4 with 645 mm² copper).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, EP | GND | Power ground return; pins 1 & 4 plus exposed pad must be soldered to PCB ground plane for thermal and EMI integrity |
| 2 | OUT1 | 1.8 V regulated output; requires 1 µF X5R/X7R ceramic capacitor placed adjacent to pin for stability |
| 3 | OUT2 | 2.8 V regulated output; independent from OUT1; decoupled with separate 1 µF capacitor |
| 5 | EN2 | Enable for OUT2; <0.4 V disables OUT2 and activates 50 Ω active discharge to GND |
| 6 | IN2 | Input for OUT2 channel; accepts 1.9–5.25 V; requires local 1 µF ceramic bypass capacitor |
| 7 | IN1 | Input for OUT1 channel; electrically isolated from IN2; supports independent voltage sources |
| 8 | EN1 | Enable for OUT1; logic-compatible with 1.8 V systems; internal 300 nA pull-down ensures default OFF state |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent inputs | IN1 and IN2 allow separate power domains (e.g., battery + USB) to feed 1.8 V and 2.8 V rails without cross-coupling |
| Active output discharge | 50 Ω internal discharge path per channel pulls OUT1/OUT2 to GND within microseconds upon EN deassertion-critical for safe power sequencing |
| Stable with 1 µF ceramic COUT | Eliminates need for larger or specialized capacitors; reduces BOM count and board area in space-constrained mobile designs |
| Adaptive ground current | Reduces IQ to 55 µA/channel at light load while maintaining regulation-extends battery runtime in sleep modes |
| Thermal shutdown & current limit | Per-channel protection (160°C trip, 400 mA current limit) prevents failure during short circuits or overload without affecting the other rail |
Applications
| Smartphone Core Logic | Wireless Handset RF Front-End |
|---|---|
Use Scenario: Powering application processor I/O and memory interfaces requiring tightly regulated 1.8 V and noise-sensitive 2.8 V analog rails. IC Role / Device Role / Timing Role: Dual-LDO regulator providing isolated, low-noise, sequenced power to SoC subsystems with independent enable control. Use Value: 75 dB PSRR rejects noise from switching DC-DC converters; 75 µVRMS noise avoids ADC/DAC performance degradation. | Use Scenario: Supplying 2.8 V to PA driver stages and 1.8 V to RF transceiver digital control logic in LTE/5G handsets. IC Role / Device Role / Timing Role: Low-dropout regulator delivering stable bias under dynamic RF load transients up to 300 mA. Use Value: 160–270 mV dropout enables efficient use of declining battery voltage; fast load transient response minimizes VOUT droop during TX bursts. |
| Bluetooth/Wi-Fi Module | Portable Medical Sensor Hub |
Use Scenario: Powering dual-rail Bluetooth 5.0 SoC (1.8 V core, 2.8 V radio) in wearables with strict size and battery-life constraints. IC Role / Device Role / Timing Role: Compact dual-output LDO enabling single-component solution for multi-voltage wireless ICs. Use Value: XDFN8 1.2 × 1.6 mm footprint saves >40% board area vs. two discrete SOT-23 LDOs; 55 µA IQ extends coin-cell life. | Use Scenario: Regulating power for low-power MCU (1.8 V) and analog front-end (2.8 V) in battery-operated ECG/SpO₂ sensors. IC Role / Device Role / Timing Role: Precision, low-noise dual LDO ensuring signal integrity in medical-grade analog acquisition paths. Use Value: ±2% output accuracy and 75 µVRMS noise meet IEC 60601-1 EMC and accuracy requirements without post-regulation filtering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A202818PDBVR | 1.8 V / 2.8 V dual LDO; 300 mA per channel; 25 µVRMS noise; 68 dB PSRR at 1 kHz; SOT-23-8 package (2.9 × 1.6 mm) | Larger footprint; lower noise but reduced PSRR; no active discharge | Select for ultra-low-noise analog rails where board area is less constrained and fast turn-off is not required. |
| MIC5365-1828YMT-TZ | 1.8 V / 2.8 V dual LDO; 300 mA per channel; 45 µVRMS noise; 65 dB PSRR at 1 kHz; 1.6 × 1.6 mm DFN-8 | Slightly larger package; no thermal shutdown per channel; higher IQ (75 µA) | Select when cost sensitivity outweighs need for per-channel fault isolation and lowest possible quiescent current. |
Compared with TPS7A202818PDBVR and MIC5365-1828YMT-TZ, the NCP154MX180280TAG uniquely combines per-channel thermal shutdown, active discharge, and best-in-class 75 dB PSRR-making it optimal for RF-critical, space-constrained, and safety-aware portable designs.
Availability
NCP154MX180280TAG is available at Aetrix Electronics and suitable for smartphone power management, wireless handset RF biasing, and portable medical sensor hubs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for NCP154MX180280TAG 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 (Nasdaq: ON) is a global semiconductor leader delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCP154MX180280TAG belongs to onsemi's high-performance LDO portfolio designed specifically for battery-powered RF and portable electronics-emphasizing ultra-low noise, dual-rail flexibility, and robust protection in minimal footprint packages.
FAQ
What are the exact output voltages of the NCP154MX180280TAG?
The NCP154MX180280TAG delivers precisely trimmed 1.8 V on OUT1 and 2.8 V on OUT2, with ±2% tolerance for VOUT > 2 V (i.e., 2.8 V channel) and ±60 mV for VOUT ≤ 2 V (i.e., 1.8 V channel), specified over −40°C to +85°C junction temperature.
Does the NCP154MX180280TAG require external capacitors, and what values are recommended?
Yes-the NCP154MX180280TAG requires a 1 µF X5R or X7R ceramic capacitor on each input (IN1, IN2) and output (OUT1, OUT2), placed as close as possible to the respective pins. It is stable down to 0.33 µF effective capacitance, accounting for DC bias and temperature effects.
How does the enable functionality work on the NCP154MX180280TAG?
Each channel has a dedicated enable pin: EN1 controls OUT1, EN2 controls OUT2. Driving EN ≥ 0.9 V enables regulation; driving EN ≤ 0.4 V disables the channel and activates its 50 Ω active discharge path to GND. Internal 300 nA pull-downs ensure default OFF if pins float.
What thermal protection features does the NCP154MX180280TAG include?
The NCP154MX180280TAG incorporates per-channel thermal shutdown at 160°C (typ.) with 20°C hysteresis, and independent current limiting at 400 mA (typ.). If one channel overheats or shorts, the other continues operating normally-ensuring system-level fault containment.
Can the NCP154MX180280TAG operate from a single input source for both channels?
Yes-though designed for independent inputs, the NCP154MX180280TAG allows connecting IN1 and IN2 together to a common 1.9–5.25 V supply. Both channels remain fully functional and independently enabled, making it suitable for single-rail systems needing dual regulated outputs.
NCP154MX180280TAG 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, 2.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.39V @ 300mA, 0.27V @ 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)
NCP154MX180280TAG FAQ
1.How can I place an order for NCP154MX180280TAG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP154MX180280TAG 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 NCP154MX180280TAG reliable?
The price and inventory of NCP154MX180280TAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP154MX180280TAG is usually 5 days.
3.What payment methods are accepted for NCP154MX180280TAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP154MX180280TAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP154MX180280TAG?
NCP154MX180280TAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP154MX180280TAG 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 NCP154MX180280TAG?
For technical support, including NCP154MX180280TAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP154MX180280TAG requirements.
6.How does Aetrix verify that NCP154MX180280TAG is sourced from the original manufacturer or authorized distributors?
All NCP154MX180280TAG 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 NCP154MX180280TAG meets industry standards.
7.What is the process for return or replacement of NCP154MX180280TAG?
All NCP154MX180280TAG units undergo pre-shipment inspection (PSI). If there is an issue with NCP154MX180280TAG, 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 NCP154MX180280TAG part is unused and in its original packaging.
Return procedure for NCP154MX180280TAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NCP154MX180280TAG 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
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
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…
