My Inquiry
My Account
onsemi NCP717BMX250TCG
- Part No.:
- NCP717BMX250TCG
- Manufacturer:
- onsemi
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
NCP717BMX250TCG.pdf
- Description:
- IC REG LINEAR 2.5V 300MA 4XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,247
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NCP717BMX250TCG from onsemi is a 300 mA, fixed 2.5 V output low-dropout (LDO) regulator optimized for battery-powered portable electronics. It delivers ±2% output accuracy over load/line/temperature, 175 mV typical dropout at 300 mA, and ultra-low 25 µA quiescent current at no-load - enabling extended runtime in space-constrained, noise-sensitive applications such as GPS modules and Bluetooth handsets.
For engineers reviewing the NCP717BMX250TCG datasheet, pinout, applications, or equivalent options, key selection criteria include its XDFN4 1.0×1.0 mm package, EN-controlled enable/disable functionality, 22 µVRMS output noise (100 Hz–100 kHz), and stability with only 1 µF ceramic output capacitance - critical for compact, low-noise power rail design.
Technical Context
The NCP717BMX250TCG employs a PMOS pass transistor architecture with adaptive quiescent current control to maintain 25 µA IQ across input voltages from 1.8 V to 5.5 V. Its internal bandgap reference and error amplifier ensure tight regulation under dynamic load conditions.
Unlike versions with active discharge (A/C suffix), the 'B' variant lacks the internal discharge FET - EN pin assertion disables the LDO but leaves OUT floating. Thermal shutdown (160°C trip, 20°C hysteresis) and current limiting (379 mA typ.) provide robust fault protection without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5 V ±2% tolerance over −40°C to +125°C, load 0–300 mA, line 2.3 V–5.5 V - ensures stable core voltage for 2.5 V logic and RF ICs. |
| Max Output Current | 300 mA continuous; current limit 379 mA (typ.) at VOUT = 90% nominal - supports moderate-power microcontrollers and sensors. |
| Dropout Voltage | 190 mV (typ.) at 300 mA, VIN = 2.5 V + 0.5 V - enables operation down to 2.69 V input, suitable for single-cell Li-ion or dual-cell alkaline systems. |
| Quiescent Current | 25 µA (typ.) at no-load; rises to 250 µA at 300 mA - minimizes standby power loss in always-on wearable devices. |
| Output Noise | 22 µVRMS (100 Hz–100 kHz) - meets stringent noise requirements for ADC references and RF front-end biasing. |
| PSRR | 70 dB at 1 kHz - suppresses ripple from noisy switching regulators feeding the LDO input. |
| Enable Threshold | VEN_HI = 0.9 V, VEN_LO = 0.4 V - compatible with 1.8 V and 3.3 V GPIO, with built-in 56 mV hysteresis to reject EN pin noise. |
Pinout & Package
Package: XDFN4 1.0×1.0 mm, 0.65 mm pitch, exposed thermal pad (EPAD) - requires solder connection to GND plane for thermal performance (RJA = 250°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Regulated output | Delivers 2.5 V; requires ≥1 µF ceramic capacitor to GND for stability; no external discharge path (B version). |
| 2 (GND) | Power ground | Reference for all internal circuitry; EPAD must be soldered directly to this node for thermal conduction. |
| 3 (EN) | Enable control input | Logic-high (>0.9 V) enables regulation; logic-low (<0.4 V) disables LDO and reduces IN current to <1 µA - no active discharge. |
| 4 (IN) | Input supply | Accepts 1.8–5.5 V; requires ≥1 µF ceramic capacitor close to pin to suppress high-frequency noise and support transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 25 µA typ. at zero load - extends battery life in IoT sensors with long sleep cycles. |
| Low-noise regulation | 22 µVRMS output noise - eliminates need for additional filtering in precision analog signal chains. |
| Small-footprint stability | Stable with 1 µF ceramic COUT - reduces BOM count and PCB area vs. legacy LDOs requiring 10+ µF tantalum. |
| Integrated protection | Thermal shutdown (160°C), current limit (379 mA), and reverse-current blocking - eliminates discrete protection components. |
| Wide input range | 1.8 V to 5.5 V operation - supports direct connection to Li-ion, Li-Po, or regulated 3.3 V/5 V rails without pre-regulation. |
Applications
| GPS Module Power Supply | Bluetooth Audio Earbud Core Rail |
|---|---|
Use Scenario: Powers GNSS baseband processor and RF frontend in miniaturized handheld GPS receivers. IC Role / Device Role / Timing Role: Provides clean, low-noise 2.5 V bias for sensitive RF synthesizers and ADCs. Use Value: 22 µVRMS noise and 70 dB PSRR prevent phase noise degradation and spurious emissions in GPS signal acquisition. | Use Scenario: Supplies 2.5 V to Bluetooth SoC and MEMS microphone bias circuit in true wireless stereo earbuds. IC Role / Device Role / Timing Role: Delivers regulated voltage during rapid load transients (e.g., audio streaming bursts) with <95 mV droop. Use Value: 175 mV dropout and fast transient response maintain stable SoC operation even as battery voltage drops to 2.69 V. |
| Portable Medical Pulse Oximeter | Smartwatch Display Backlight Driver Bias |
Use Scenario: Powers optical sensor analog front-end and MCU in battery-operated pulse oximeters. IC Role / Device Role / Timing Role: Supplies ultra-stable 2.5 V reference for photodiode transimpedance amplifier and ADC. Use Value: ±2% accuracy and <4 mV load regulation ensure consistent LED current control and SpO₂ measurement repeatability. | Use Scenario: Provides 2.5 V bias to white LED driver IC in always-on smartwatch displays. IC Role / Device Role / Timing Role: Regulates voltage during display brightness changes and ambient light sensing cycles. Use Value: 25 µA quiescent current minimizes standby power draw, extending time between charges without compromising backlight stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-2502E/TT | 250 mA max output, 1.6 µA IQ, SOT-23-5 package - lower current, lower IQ, larger footprint. | Limited to sub-250 mA loads; unsuitable for 300 mA peak MCU activity. | Select when ultra-low IQ dominates over output current capability and board space allows SOT-23. |
| TLS850B2TE/V33 | 500 mA, 35 µA IQ, AEC-Q100 qualified, 3.3 V fixed - higher current, automotive-grade, different output voltage. | Designed for automotive infotainment; not drop-in for 2.5 V portable systems. | Choose only for automotive environments requiring 3.3 V and extended temperature compliance. |
Compared with MCP1700T-2502E/TT and TLS850B2TE/V33, the NCP717BMX250TCG uniquely balances 300 mA drive, 25 µA IQ, 2.5 V output, and 1.0×1.0 mm XDFN4 packaging - making it optimal for space-constrained consumer wearables where precise 2.5 V rail integrity is non-negotiable.
Availability
NCP717BMX250TCG is available at Aetrix Electronics and suitable for GPS receivers, Bluetooth audio devices, portable medical monitors, and smart wearable electronics requiring stable component supply, low-noise power delivery, and compact packaging.
Supply support for NCP717BMX250TCG 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 innovation for automotive, industrial, cloud, and intelligent edge applications.
The NCP717 series is designed specifically for ultra-low-power, noise-sensitive portable electronics - delivering high-performance LDO regulation in minimal footprint for battery-operated devices.
FAQ
What is the output voltage tolerance of the NCP717BMX250TCG over temperature and load?
The NCP717BMX250TCG maintains ±2% output voltage accuracy across −40°C to +125°C junction temperature, 0–300 mA load, and input voltage from 2.3 V to 5.5 V. This specification is guaranteed by design and characterization - not production-tested at extremes - and ensures reliable 2.5 V rail stability for precision analog circuits and digital cores.
Does the NCP717BMX250TCG include active output discharge?
No, the NCP717BMX250TCG does not include active output discharge. The 'B' suffix denotes the version without the internal discharge FET. When EN is pulled low, the LDO shuts down and the OUT pin floats - external discharge circuitry is required if rapid VOUT decay is needed after disable.
What is the minimum output capacitor required for stability with the NCP717BMX250TCG?
The NCP717BMX250TCG is stable with a minimum 1.0 µF ceramic (X5R/X7R) output capacitor. The device remains stable down to 100 nF effective capacitance, but 1.0 µF provides sufficient margin against DC bias, temperature, and tolerance variations - eliminating need for larger or specialized capacitors.
How does the NCP717BMX250TCG achieve ultra-low quiescent current?
The NCP717BMX250TCG uses dynamic quiescent current adjustment: internal circuitry scales bias currents based on load demand, achieving 25 µA IQ at no-load while maintaining full 300 mA capability. This adaptive architecture avoids trade-offs between standby efficiency and full-load performance - a key advantage over fixed-IQ LDOs.
Can the NCP717BMX250TCG be used with input voltages below 1.8 V?
No - the absolute minimum input voltage for the NCP717BMX250TCG is 1.8 V per Absolute Maximum Ratings. Operation below this risks improper regulation or undefined behavior. For sub-1.8 V inputs, consider alternative LDOs or buck-boost architectures rated for lower VIN.
NCP717BMX250TCG 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):
- 0.35V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 35 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-XDFN (1x1)
NCP717BMX250TCG FAQ
1.How can I place an order for NCP717BMX250TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP717BMX250TCG 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 NCP717BMX250TCG reliable?
The price and inventory of NCP717BMX250TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP717BMX250TCG is usually 5 days.
3.What payment methods are accepted for NCP717BMX250TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP717BMX250TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP717BMX250TCG?
NCP717BMX250TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP717BMX250TCG 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 NCP717BMX250TCG?
For technical support, including NCP717BMX250TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP717BMX250TCG requirements.
6.How does Aetrix verify that NCP717BMX250TCG is sourced from the original manufacturer or authorized distributors?
All NCP717BMX250TCG 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 NCP717BMX250TCG meets industry standards.
7.What is the process for return or replacement of NCP717BMX250TCG?
All NCP717BMX250TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCP717BMX250TCG, 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 NCP717BMX250TCG part is unused and in its original packaging.
Return procedure for NCP717BMX250TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NCP717BMX250TCG 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
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…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
