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onsemi NCP160BMX250TBG
- Part No.:
- NCP160BMX250TBG
- Manufacturer:
- onsemi
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
NCP160BMX250TBG.pdf
- Description:
- IC REG LINEAR 2.5V 250MA 4XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,551
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Product details
Overview
NCP160BMX250TBG from onsemi is a 250 mA ultra-low-noise, high-PSRR LDO regulator with fixed 2.5 V output, designed for RF and analog circuits in space-constrained portable devices. It delivers ±2% output accuracy over load/temperature, 80 mV dropout at 250 mA, 98 dB PSRR at 1 kHz, and 10 µVRMS noise - enabling clean power for sensitive receivers and precision ADCs in smartphones and wireless LAN modules.
For engineers reviewing the NCP160BMX250TBG datasheet, pinout, applications, or equivalent options, key selection criteria include its non-active-discharge enable logic, 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 NCP160BMX250TBG uses a PMOS pass transistor architecture to achieve low dropout and reverse-current immunity, with integrated bandgap reference, soft-start, and thermal shutdown. Its enable logic requires VEN > 1.2 V to activate regulation and VEN < 0.4 V to disable - but unlike Version A variants, it lacks active output discharge.
Designed for battery-powered RF/analog systems, it operates across 1.9–5.5 V input and maintains stability with 0.7–1 µF X5R/X7R ceramic capacitors. Its 198.1°C/W junction-to-air thermal resistance (XDFN4) and 700 mA current limit support robust operation under transient loads up to 250 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5 V ±2% - ensures stable bias for RF transceivers and analog front-ends without external feedback. |
| Max Output Current | 250 mA continuous - sufficient for powering single-core RF ICs or dual-channel audio codecs. |
| Dropout Voltage | 110 mV typ. at 250 mA - enables operation from 2.61 V input when VOUT = 2.5 V, extending battery runtime. |
| PSRR | 98 dB typ. at 1 kHz - suppresses switching noise from adjacent DC-DC converters feeding shared input rails. |
| Output Noise | 10 µVRMS (10 Hz–100 kHz) - meets stringent SNR requirements of 16-bit+ ADCs and low-phase-noise VCOs. |
| Quiescent Current | 18 µA typ. - minimizes standby power loss in always-on sensor nodes and IoT wake-up circuits. |
| Enable Threshold | VENH = 1.2 V, VENL = 0.4 V - compatible with standard GPIOs and allows direct connection to 1.8 V or 3.3 V logic without level shifters. |
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 local 1 µF ceramic decoupling to minimize AC impedance and improve PSRR. |
| OUT | Regulated output | Delivers fixed 2.5 V; must be bypassed with 1 µF ceramic capacitor placed adjacent to pin for stability. |
| EN | Enable control input | Active-high logic: ≥1.2 V enables regulation; ≤0.4 V disables output and reduces VIN current to 10 nA typ. |
| GND | Ground reference | Common return path; EPAD must be soldered to PCB ground plane to achieve rated thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low noise | 10 µVRMS output noise enables use in RF receiver chains where phase noise directly impacts sensitivity. |
| High PSRR | 98 dB at 1 kHz rejects ripple from noisy buck converters sharing the same battery source. |
| No active discharge | Omits internal discharge FET - prevents unintended discharge of backup supplies or hold-up capacitors during shutdown. |
| Stable with small ceramics | Operates reliably with 0.7–1 µF X5R/X7R MLCCs - eliminates need for larger, higher-ESR tantalum or polymer caps. |
| Thermal protection | Shuts down at 160°C junction temperature and auto-recovers at 140°C - prevents permanent damage during sustained overload. |
Applications
| Smartphone RF Front-End | Wireless LAN Baseband |
|---|---|
Use Scenario: Powering LTE/5G power amplifiers and low-noise amplifiers in multi-band smartphone designs. IC Role / Device Role / Timing Role: Provides clean, regulated 2.5 V bias to RF transceiver ICs requiring minimal supply-induced phase noise. Use Value: 98 dB PSRR and 10 µVRMS noise prevent degradation of EVM and ACLR in high-order QAM modulations. | Use Scenario: Supplying 2.5 V to WLAN baseband processors and Wi-Fi 6/6E MAC/PHY SoCs. IC Role / Device Role / Timing Role: Delivers stable core voltage for digital baseband logic while rejecting noise from switching regulators on shared PCB rails. Use Value: 18 µA quiescent current extends battery life in always-connected IoT gateways and portable hotspots. |
| Industrial Camera Sensor Bias | Medical Portable Ultrasound |
Use Scenario: Biasing high-resolution CMOS image sensors in compact industrial inspection cameras. IC Role / Device Role / Timing Role: Supplies low-noise 2.5 V to analog pixel readout circuitry and column ADC references. Use Value: ±2% output accuracy over −40°C to +125°C ensures consistent sensor gain calibration across operating environments. | Use Scenario: Powering ultrasound beamformer ASICs and analog front-end amplifiers in handheld diagnostic devices. IC Role / Device Role / Timing Role: Regulates 2.5 V for time-critical analog signal paths where supply ripple induces image artifacts. Use Value: 80 mV dropout enables operation from partially discharged Li-ion cells (≥2.61 V), maximizing usable battery capacity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCP160AMX250TBG | Same 2.5 V output and XDFN4 package, but includes active output discharge (Version A). | Required where rapid VOUT discharge is needed after shutdown (e.g., to meet system-level safety discharge specs). | Select NCP160AMX250TBG only if active discharge is mandatory; otherwise NCP160BMX250TBG offers lower cost and simpler control. |
| TPL7407LPWPR | 250 mA, 2.5 V fixed, 200 mV dropout, 65 dB PSRR @ 1 kHz, no EN pin - requires external enable circuitry. | Suitable for cost-sensitive, non-EN applications where PSRR > 65 dB suffices and board space permits larger SOT-23-5 footprint. | Choose TPL7407LPWPR only if EN functionality is unnecessary and PSRR margin above 65 dB is acceptable. |
Compared with NCP160AMX250TBG and TPL7407LPWPR, NCP160BMX250TBG uniquely balances ultra-low noise (10 µVRMS), high PSRR (98 dB), and EN-controlled shutdown without active discharge - making it optimal for RF/analog systems where output discharge conflicts with system-level power sequencing.
Availability
NCP160BMX250TBG is available at Aetrix Electronics and suitable for smartphone RF front-ends, wireless LAN baseband processors, and industrial camera sensor biasing requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for NCP160BMX250TBG 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 targets RF and analog power integrity - engineered specifically to deliver ultra-low noise and high PSRR in ultra-small packages for battery-powered portable electronics.
FAQ
What is the output voltage tolerance of the NCP160BMX250TBG over temperature and load?
The NCP160BMX250TBG maintains ±2% output voltage accuracy across −40°C to +125°C junction temperature and 0–250 mA load current, as specified in the Electrical Characteristics table under "Output Voltage Accuracy" with VIN = VOUT(NOM) + 1 V. This tight tolerance ensures reliable operation of precision analog circuits without external trimming.
Does the NCP160BMX250TBG include active output discharge?
No, the NCP160BMX250TBG does not include active output discharge. It belongs to the "B" version family (non-active discharge), meaning the output floats when disabled via the EN pin. This behavior avoids unintended discharge of hold-up capacitors or backup supplies - a key distinction from the "A" version (e.g., NCP160AMX250TBG).
What is the minimum recommended output capacitor for stable operation of the NCP160BMX250TBG?
The NCP160BMX250TBG is designed to remain stable with a minimum effective output capacitance of 0.7 µF using X5R or X7R ceramic dielectrics. However, the recommended value is 1 µF, placed as close as possible to the OUT pin. Larger values or lower-ESR capacitors may improve load transient response but are not required for stability.
What thermal performance can be expected from the NCP160BMX250TBG in the XDFN4 package?
In the XDFN4 package, the NCP160BMX250TBG has a junction-to-ambient thermal resistance (RθJA) of 198.1°C/W under JEDEC-standard board conditions. With proper PCB copper area (e.g., ≥200 mm² 1 oz Cu connected to EPAD), maximum power dissipation can exceed 0.4 W at 25°C ambient - sufficient for typical 250 mA loads at moderate input-output differentials.
How does the enable pin threshold of the NCP160BMX250TBG interface with common logic families?
The NCP160BMX250TBG EN pin has a guaranteed high threshold (VENH) of ≥1.2 V and low threshold (VENL) of ≤0.4 V, making it compatible with 1.8 V and 3.3 V GPIOs without level translation. Its internal 200 nA pull-down current ensures default-disable behavior when left floating - simplifying system-level enable sequencing.
NCP160BMX250TBG 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):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.175V @ 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)
NCP160BMX250TBG FAQ
1.How can I place an order for NCP160BMX250TBG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP160BMX250TBG 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 NCP160BMX250TBG reliable?
The price and inventory of NCP160BMX250TBG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP160BMX250TBG is usually 5 days.
3.What payment methods are accepted for NCP160BMX250TBG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP160BMX250TBG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP160BMX250TBG?
NCP160BMX250TBG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP160BMX250TBG 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 NCP160BMX250TBG?
For technical support, including NCP160BMX250TBG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP160BMX250TBG requirements.
6.How does Aetrix verify that NCP160BMX250TBG is sourced from the original manufacturer or authorized distributors?
All NCP160BMX250TBG 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 NCP160BMX250TBG meets industry standards.
7.What is the process for return or replacement of NCP160BMX250TBG?
All NCP160BMX250TBG units undergo pre-shipment inspection (PSI). If there is an issue with NCP160BMX250TBG, 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 NCP160BMX250TBG part is unused and in its original packaging.
Return procedure for NCP160BMX250TBG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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