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onsemi NCP154MX330285TAG
- Part No.:
- NCP154MX330285TAG
- Manufacturer:
- onsemi
- Package:
- 8-XFDFN Exposed Pad
- Datasheet:
-
NCP154MX330285TAG.pdf
- Description:
- IC REG LINEAR 2.85V/3.3V 8XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:42,000
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Product details
Overview
NCP154MX330285TAG from onsemi is a dual-output, 300 mA low-dropout linear voltage regulator with independent IN1/IN2 inputs and fixed output voltages of 3.3 V (OUT1) and 2.85 V (OUT2). It delivers ultra-low noise (75 µVRMS, 10 Hz–100 kHz), high PSRR (75 dB at 1 kHz), and low quiescent current (55 µA per channel), making it ideal for RF-sensitive battery-powered applications such as smartphones and wireless handsets.
For engineers reviewing the NCP154MX330285TAG datasheet, pinout, applications, or equivalent options, key selection criteria include dual independent enable control (EN1/EN2), active output discharge (50 Ω), thermal shutdown (160 °C), stable operation with 1 µF ceramic output capacitors, and XDFN8 1.2 × 1.6 mm package compatibility.
Technical Context
The NCP154MX330285TAG integrates two independent PMOS LDO regulators sharing a common ground but with separate input, enable, and output pins. Each channel features adaptive ground current optimization for light-load efficiency and dedicated active discharge circuitry activated when EN < 0.4 V.
Its architecture supports simultaneous or staggered enable sequencing, with EN threshold voltages of 0.9 V (high) and 0.4 V (low), and includes overcurrent limiting (400 mA typ.) and thermal shutdown (160 °C) protection per channel - fully independent between OUT1 and OUT2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.3 V (OUT1) and 2.85 V (OUT2), ±2% accuracy over −40°C to +85°C for VOUT > 2 V |
| Max Output Current | 300 mA per channel, with 400 mA current limit to prevent damage during overload |
| Dropout Voltage | 140 mV typical at 300 mA for 3.3 V output; enables regulation down to VIN = 3.44 V |
| PSRR | 75 dB at 1 kHz, critical for suppressing noise coupling into RF signal chains |
| Quiescent Current | 55 µA per channel (typ.), enabling multi-day standby in portable devices |
| Noise Performance | 75 µVRMS (10 Hz–100 kHz), no external bypass capacitor required for ultra-low-noise operation |
| Enable Threshold | EN high threshold = 0.9 V, low threshold = 0.4 V - compatible with standard GPIO logic levels |
Pinout & Package
Package: XDFN8 1.2 × 1.6 mm (Case 711AS), thermally enhanced with exposed pad tied to GND for effective heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4 | GND | Power ground terminals; both must be connected to PCB ground plane for thermal and electrical stability |
| 2 | OUT1 | Regulated 3.3 V output; requires 1 µF ceramic capacitor to ground for stability |
| 3 | OUT2 | Regulated 2.85 V output; requires 1 µF ceramic capacitor to ground for stability |
| 5 | EN2 | Enable input for OUT2; < 0.4 V disables OUT2 and activates 50 Ω active discharge to GND |
| 6 | IN2 | Input supply for OUT2 channel; decoupling capacitor recommended adjacent to pin |
| 7 | IN1 | Input supply for OUT1 channel; decoupling capacitor recommended adjacent to pin |
| 8 | EN1 | Enable input for OUT1; < 0.4 V disables OUT1 and activates 50 Ω active discharge to GND |
| EP | Exposed Pad | Thermal and electrical ground connection; must be soldered to large copper area for thermal performance |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent inputs | IN1 and IN2 allow separate power domains (e.g., VBAT and VBACKUP) to feed each LDO independently |
| Active output discharge | 50 Ω internal discharge path per output ensures fast, controlled turn-off (< 100 µs for 1 µF load) |
| Stable with minimal capacitance | Guaranteed stability with only 1 µF X5R/X7R ceramic output capacitors - reduces BOM count and board space |
| Adaptive ground current | Reduces IQ to 55 µA per channel at light load while maintaining regulation, extending battery life |
| Independent channel protection | Per-channel current limit and thermal shutdown prevent fault propagation - one failed channel does not disable the other |
Applications
| Smartphone Power Management | Wireless Transceiver Biasing |
|---|---|
Use Scenario: Dual-rail power for application processor core (3.3 V) and RF front-end (2.85 V) in compact smartphone designs. IC Role / Device Role / Timing Role: Dual LDO providing clean, sequenced, and independently controllable voltage rails with fast transient response. Use Value: Eliminates need for discrete regulators and external discharge FETs; reduces solution size by >30% vs. single-channel alternatives. | Use Scenario: Powering Bluetooth® and ZigBee® transceivers requiring isolated, low-noise 2.85 V bias with rapid enable/disable control. IC Role / Device Role / Timing Role: Low-noise, high-PSRR regulator delivering stable 2.85 V to RF ICs while rejecting switching noise from nearby DC-DC converters. Use Value: Achieves 75 dB PSRR at 1 kHz without additional filtering, enabling direct integration into noise-sensitive RF sections. |
| Tablet Baseband SoC Core | Portable Medical Sensor Hub |
Use Scenario: Supplying 3.3 V I/O and 2.85 V analog subsystems in battery-powered tablets with strict thermal constraints. IC Role / Device Role / Timing Role: Dual LDO with independent EN1/EN2 enabling dynamic power gating of unused subsystems to minimize system IQ. Use Value: Adaptive ground current cuts total quiescent draw to ≤110 µA (both channels disabled), supporting multi-week standby. | Use Scenario: Powering precision analog front-end (2.85 V) and digital controller (3.3 V) in wearable ECG/SpO₂ sensors. IC Role / Device Role / Timing Role: Ultra-low-noise regulator ensuring < 75 µVRMS ripple on analog rail to preserve ADC SNR and sensor accuracy. Use Value: No external noise-bypass capacitor required - simplifies layout and eliminates risk of capacitor aging-induced drift. |
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 |
|---|---|---|---|
| TPL7407LPGDR | Single 7-channel high-side driver (not LDO); no voltage regulation, no dual outputs, no PSRR spec | Designed for LED/relay driving, not power regulation - incompatible functional role | Select only if replacing discrete high-side switches, not voltage regulation |
| TPS7A20285PDBVR | Single-output 300 mA LDO (2.85 V only); no second output, no dual enable, no IN2 pin | Requires two devices to match NCP154MX330285TAG's dual-rail capability - increases footprint and BOM cost | Use only when 3.3 V rail is supplied separately; verify thermal derating with two packages |
Compared with TPL7407LPGDR and TPS7A20285PDBVR, the NCP154MX330285TAG uniquely integrates two independently regulated, independently enabled, and actively discharged outputs in a single XDFN8 package - reducing component count, PCB area, and system-level complexity for dual-rail portable designs.
Availability
NCP154MX330285TAG is available at Aetrix Electronics and suitable for smartphone power management, wireless transceiver biasing, and portable medical sensor hub applications requiring stable component supply, long-term lifecycle support, and Pb-free compliance.
Supply support for NCP154MX330285TAG 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 electronics, with leadership in power management, analog, and sensor technologies.
The NCP154MX330285TAG belongs to onsemi's NCP154 dual-LDO product line, engineered specifically for space-constrained, battery-powered RF systems where ultra-low noise, high PSRR, and independent channel control are mandatory.
FAQ
What are the exact output voltages of the NCP154MX330285TAG?
The NCP154MX330285TAG provides two fixed, factory-trimmed output voltages: 3.3 V on OUT1 and 2.85 V on OUT2. These values are specified in Table 5 of the datasheet under "Voltage Option* (OUT1/OUT2)" and confirmed by the marking code "DR". Output accuracy is ±2% for VOUT > 2 V across −40°C to +85°C junction temperature.
Does the NCP154MX330285TAG require external capacitors for stability?
Yes - the NCP154MX330285TAG requires a 1 µF X5R or X7R ceramic capacitor placed close to each output pin (OUT1 and OUT2) and each input pin (IN1 and IN2). The device is designed to remain stable with minimum effective capacitance of 0.33 µF, accounting for DC bias and temperature effects. No additional noise-bypass capacitor is needed due to its ultra-low intrinsic noise.
How does the active discharge function work on the NCP154MX330285TAG?
When either EN1 or EN2 falls below 0.4 V, the corresponding output (OUT1 or OUT2) is disabled and an internal 50 Ω discharge path to GND is activated. This rapidly pulls the output voltage to ground - typically within tens of microseconds for a 1 µF load - preventing floating nodes and ensuring predictable power-down sequencing in multi-rail systems.
What is the maximum input voltage rating for the NCP154MX330285TAG?
The absolute maximum input voltage for both IN1 and IN2 pins of the NCP154MX330285TAG is 6 V, as specified in Table 2 ("Absolute Maximum Ratings"). However, the recommended operating input voltage range is 1.9 V to 5.25 V per channel. Exceeding 6 V may cause permanent damage, and operation above 5.25 V voids guaranteed performance specifications.
Is the NCP154MX330285TAG RoHS and Pb-free compliant?
Yes - the NCP154MX330285TAG is explicitly marked as a Pb-free device in the datasheet (see "Features" section and Package column in Table 5). It complies with RoHS Directive 2011/65/EU and is manufactured using lead-free terminations and packaging materials, with "G" or microdot marking indicating Pb-free status per onsemi's packaging specification.
NCP154MX330285TAG 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):
- 2.85V, 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -, 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)
NCP154MX330285TAG FAQ
1.How can I place an order for NCP154MX330285TAG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP154MX330285TAG 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 NCP154MX330285TAG reliable?
The price and inventory of NCP154MX330285TAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP154MX330285TAG is usually 5 days.
3.What payment methods are accepted for NCP154MX330285TAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP154MX330285TAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP154MX330285TAG?
NCP154MX330285TAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP154MX330285TAG 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 NCP154MX330285TAG?
For technical support, including NCP154MX330285TAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP154MX330285TAG requirements.
6.How does Aetrix verify that NCP154MX330285TAG is sourced from the original manufacturer or authorized distributors?
All NCP154MX330285TAG 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 NCP154MX330285TAG meets industry standards.
7.What is the process for return or replacement of NCP154MX330285TAG?
All NCP154MX330285TAG units undergo pre-shipment inspection (PSI). If there is an issue with NCP154MX330285TAG, 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 NCP154MX330285TAG part is unused and in its original packaging.
Return procedure for NCP154MX330285TAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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