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onsemi NCP160BMX300TBG
- Part No.:
- NCP160BMX300TBG
- Manufacturer:
- onsemi
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
NCP160BMX300TBG.pdf
- Description:
- IC REG LINEAR 3V 250MA 4XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,114
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Product details
Overview
NCP160BMX300TBG from onsemi is a 250 mA ultra-low-noise, high-PSRR LDO regulator with fixed 3.0 V output, 80 mV dropout at full load, ±2% output accuracy over load/temperature, and 10 µVRMS output noise (10 Hz–100 kHz). It operates from 1.9 V to 5.5 V input and is optimized for RF/analog power rails in smartphones and wireless LAN devices.
For engineers reviewing the NCP160BMX300TBG datasheet, pinout, applications, or equivalent options, key selection criteria include its non-active-discharge configuration, XDFN4 1 mm × 1 mm package, thermal shutdown (160°C), and compatibility with 1 µF ceramic input/output capacitors without ESR constraints.
Technical Context
The NCP160BMX300TBG uses a PMOS pass transistor architecture enabling low dropout and inherent reverse-current protection limitations. Its bandgap reference and integrated soft-start ensure stable startup under varying load conditions, while thermal shutdown and current limiting provide robust fault protection across −40°C to +125°C junction temperature.
Unlike active-discharge variants (e.g., "A" suffix), the "B" version lacks the internal 280 Ω discharge path - disabling automatic VOUT pull-down during EN deassertion. This simplifies biasing in systems where output hold-up or controlled discharge is managed externally.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0 V ±2% over load/temperature - ensures stable analog/RF supply without external feedback components. |
| Max Output Current | 250 mA continuous - supports moderate-power RF transceivers and sensor signal chains. |
| Dropout Voltage | 80 mV at 250 mA - enables operation with minimal headroom (e.g., 3.08 V input sustains 3.0 V output). |
| PSRR | 98 dB at 1 kHz (20 mA load) - suppresses switching noise from upstream DC/DC converters feeding sensitive RF stages. |
| Output Noise | 10 µVRMS (10 Hz–100 kHz) - meets stringent phase-noise requirements in local oscillator and ADC reference supplies. |
| Quiescent Current | 18 µA typical - extends battery life in always-on sensor or standby RF modules. |
| Enable Threshold | VENH = 1.2 V, VENL = 0.4 V - compatible with standard GPIO logic levels for precise power sequencing. |
Pinout & Package
XDFN4 package: 1 mm × 1 mm × 0.4 mm, exposed pad (EPAD) for thermal enhancement, RoHS-compliant Pb-free construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input voltage supply | Accepts 1.9–5.5 V; requires 1 µF ceramic capacitor placed adjacent to minimize trace inductance. |
| OUT | Regulated output | Delivers fixed 3.0 V; bypassed with 1 µF ceramic capacitor; no ESR requirement but <2 Ω recommended. |
| EN | Chip enable control | Active-high logic: >1.2 V enables regulation; <0.4 V disables output (no active discharge in "B" variant). |
| GND | Ground reference | Common return path; EPAD must be connected to PCB ground plane for optimal thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low noise | 10 µVRMS output noise enables clean power for RF synthesizers and high-resolution ADCs. |
| High PSRR | 98 dB at 1 kHz suppresses ripple from noisy switchers, reducing need for additional filtering stages. |
| Low quiescent current | 18 µA IQ allows use in battery-powered IoT sensors with multi-year runtime expectations. |
| Stable with 1 µF ceramics | Eliminates need for larger or specialized capacitors, lowering BOM cost and board area. |
| Thermal shutdown | 160°C trip threshold with 140°C hysteresis prevents permanent damage during sustained overload or poor heatsinking. |
Applications
| Smartphone RF Front-End | Wireless LAN Baseband |
|---|---|
Use Scenario: Powering PA driver stages and LNA bias rails in LTE/Wi-Fi front-end modules. IC Role / Device Role / Timing Role: Low-noise 3.0 V supply for RF amplifiers requiring minimal phase noise contribution. Use Value: 10 µVRMS noise and 98 dB PSRR prevent AM-to-PM conversion and maintain EVM compliance. | Use Scenario: Supplying 3.0 V to WLAN baseband processors and analog front-ends in portable routers. IC Role / Device Role / Timing Role: Stable, low-dropout regulator for mixed-signal SoC I/O and PLL core supplies. Use Value: 80 mV dropout enables efficient use of shared 3.3 V system rail, minimizing power loss. |
| Industrial Camera Sensor Bias | Medical Wearable Analog Front-End |
Use Scenario: Providing clean 3.0 V bias to CMOS image sensor analog circuits in compact surveillance cameras. IC Role / Device Role / Timing Role: Ultra-low-noise LDO for pixel readout and column amplifier reference rails. Use Value: Sub-10 µVRMS noise directly improves SNR and dynamic range in high-resolution imaging. | Use Scenario: Powering biopotential amplifier and ADC reference in ECG/PPG wearables. IC Role / Device Role / Timing Role: Precision analog supply isolated from digital switching noise in space-constrained designs. Use Value: 18 µA quiescent current extends single-cell coin-cell battery life beyond 2 years in intermittent-use mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A2030PDQNR | 3.0 V fixed, 300 mA, 12 µVRMS noise, 1.6 V–6.0 V input, active discharge enabled by default | Includes integrated active discharge; higher IQ (6.5 µA typ) but lower noise floor at high frequencies | Select when fast output discharge is required during power-down sequencing. |
| MCP1700T-3002E/MB | 3.0 V fixed, 250 mA, 30 µVRMS noise, 2.3 V–6.0 V input, no thermal shutdown, SOT-23-5 package | Larger footprint, higher noise, no thermal protection - suitable only for benign ambient environments | Select for cost-sensitive, non-thermal-critical applications where XDFN4 size is not mandatory. |
Compared with TPS7A2030PDQNR and MCP1700T-3002E/MB, the NCP160BMX300TBG offers superior noise performance (10 µVRMS) and integrated thermal shutdown in the smallest footprint (XDFN4), making it optimal for thermally constrained RF/analog systems where output discharge is managed externally.
Availability
NCP160BMX300TBG is available at Aetrix Electronics and suitable for smartphone RF front-end, wireless LAN baseband, and industrial camera sensor bias applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for NCP160BMX300TBG 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 NCP160 series is designed specifically for ultra-low-noise, high-PSRR power delivery to RF and precision analog circuits - prioritizing noise suppression, transient response, and small-form-factor integration in battery-powered devices.
FAQ
What is the output voltage tolerance of the NCP160BMX300TBG over temperature and load?
The NCP160BMX300TBG maintains ±2% output voltage accuracy across −40°C to +125°C junction temperature and 0–250 mA load range. This is guaranteed by design and verified through characterization per the datasheet's Electrical Characteristics table, ensuring stable 3.0 V regulation in thermally demanding environments like smartphone basebands.
Does the NCP160BMX300TBG include active output discharge?
No, the NCP160BMX300TBG does not include active output discharge. The "B" suffix denotes the non-active-discharge variant - unlike "A" versions, it lacks the internal 280 Ω discharge path. When EN is pulled low, the output floats; external circuitry is required if rapid VOUT discharge is needed.
What capacitor values are required for stable operation of the NCP160BMX300TBG?
The NCP160BMX300TBG is designed for stability with 1 µF X7R/X5R ceramic capacitors on both IN and OUT pins. Minimum effective capacitance is 0.7 µF (accounting for DC bias and temperature effects), and ESR has no minimum requirement - though output ESR should remain below 2 Ω for optimal transient response.
How does the dropout voltage of the NCP160BMX300TBG vary with load current?
At 3.0 V nominal output, the NCP160BMX300TBG exhibits 90 mV typical dropout at 250 mA (max 155 mV per datasheet Table 4). Dropout increases linearly with load due to RDS(on) of the PMOS pass device - e.g., ~35 mV at 100 mA - enabling efficient operation even near input voltage limits.
What is the thermal resistance (RJA) of the NCP160BMX300TBG in its XDFN4 package?
The NCP160BMX300TBG in XDFN4 package has a thermal resistance of 198.1°C/W (junction-to-air, JEDEC-standard board). With 1 oz copper and 100 mm² PCB copper area, RJA reduces to ~170°C/W; doubling copper area to 200 mm² further lowers it to ~155°C/W - critical for sustaining 250 mA in compact layouts.
NCP160BMX300TBG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 4-XDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.155V @ 250mA
- Current - Output:
- 250mA
- Current - Quiescent (Iq):
- 23 µA
- Current - Supply (Max):
- -
- PSRR:
- 91dB ~ 48dB (100Hz ~ 100kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Soft Start
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-XDFN (1x1)
NCP160BMX300TBG FAQ
1.How can I place an order for NCP160BMX300TBG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP160BMX300TBG 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 NCP160BMX300TBG reliable?
The price and inventory of NCP160BMX300TBG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP160BMX300TBG is usually 5 days.
3.What payment methods are accepted for NCP160BMX300TBG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP160BMX300TBG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP160BMX300TBG?
NCP160BMX300TBG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP160BMX300TBG 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 NCP160BMX300TBG?
For technical support, including NCP160BMX300TBG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP160BMX300TBG requirements.
6.How does Aetrix verify that NCP160BMX300TBG is sourced from the original manufacturer or authorized distributors?
All NCP160BMX300TBG 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 NCP160BMX300TBG meets industry standards.
7.What is the process for return or replacement of NCP160BMX300TBG?
All NCP160BMX300TBG units undergo pre-shipment inspection (PSI). If there is an issue with NCP160BMX300TBG, 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 NCP160BMX300TBG part is unused and in its original packaging.
Return procedure for NCP160BMX300TBG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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