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onsemi NCP140BMXC330TCG
- Part No.:
- NCP140BMXC330TCG
- Manufacturer:
- onsemi
- Package:
- 4-XFDFN Exposed Pad
- Datasheet:
-
NCP140BMXC330TCG.pdf
- Description:
- IC REG LINEAR 3.3V 150MA 4XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,106
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Product details
Overview
NCP140BMXC330TCG from onsemi is a 150 mA, capacitor-free, low-noise LDO voltage regulator delivering 3.3 V output with ±1% accuracy at 25°C, 125 mV dropout at 150 mA load, and 45 µA typical quiescent current - optimized for battery-powered portable electronics requiring minimal footprint and ultra-low standby power.
For engineers reviewing the NCP140BMXC330TCG datasheet, pinout, applications, or equivalent options, key selection criteria include capacitor-free stability, thermal shutdown (160°C), EN-controlled enable/disable with 0.1 µA shutdown current, and XDFN4 0.8 mm × 0.8 mm package compatibility with space-constrained PCB layouts.
Technical Context
The NCP140BMXC330TCG uses a PMOS pass transistor architecture enabling stable operation without input or output capacitors, while maintaining high PSRR (55 dB @ 1 kHz) and low output noise (17 µVRMS, 100 Hz–100 kHz). Its internal bandgap reference and soft-start circuit ensure precise regulation and controlled turn-on behavior.
Enable logic operates with 0.9 V high-threshold and 0.4 V low-threshold, supporting direct connection to microcontroller GPIOs. Unlike A-series variants, this B-version lacks active output discharge - eliminating the 100 Ω pull-down path during disable mode, reducing system-level leakage in always-off states.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V - eliminates external feedback network; supports direct powering of 3.3 V I/O domains and logic rails. |
| Max Output Current | 150 mA continuous - sufficient for sensor interfaces, RF front-ends, and low-power MCU cores in portable devices. |
| Dropout Voltage | 125 mV @ 150 mA - enables regulation from 3.425 V input, extending usable battery life in single-cell Li-ion or 3×AA configurations. |
| Quiescent Current | 45 µA typ. - minimizes battery drain during sleep modes; critical for multi-year battery life in IoT endpoints. |
| PSRR | 55 dB @ 1 kHz - suppresses switching noise from DC-DC converters feeding the LDO input, improving signal integrity in mixed-signal systems. |
| Thermal Shutdown | 160°C activation with 20°C hysteresis - protects against sustained overload or poor PCB thermal design without latch-up. |
| Input Voltage Range | 1.6 V to 5.5 V - accommodates wide input sources including partially discharged batteries and intermediate supply rails. |
Pinout & Package
XDFN4 package (Case 711BF), 0.8 mm × 0.8 mm × 0.4 mm, with exposed thermal pad requiring direct solder connection to GND plane for effective heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT | Regulated output voltage node | Delivers stable 3.3 V; optional small ceramic capacitor improves transient response but not required for stability. |
| 2: GND | Power ground reference | Primary return path; must be connected to large copper pour; exposed pad must be soldered directly to this node. |
| 3: EN | Enable control input | Logic-high (>0.9 V) enables regulation; logic-low (<0.4 V) disables output and reduces current to 0.1 µA - no active discharge. |
| 4: IN | Unregulated input voltage source | Accepts 1.6–5.5 V; internal PMOS body diode requires external reverse-current protection if VOUT > VIN possible. |
Key Features
| Feature | Design Value |
|---|---|
| Capacitor-free operation | Stable with zero input/output capacitance - eliminates BOM cost, board area, and aging-related drift in ceramic caps. |
| Ultra-low quiescent current | 45 µA typical - extends battery runtime in always-on wearable sensors and remote controls. |
| No active discharge | EN-driven shutdown leaves OUT floating - preserves state on downstream circuits; avoids unintended discharge of backup rails. |
| High PSRR at audio frequencies | 55 dB @ 1 kHz - mitigates ripple from buck converter switching edges before analog/RF stages. |
| Thermal protection with hysteresis | 160°C trip / 140°C reset - prevents thermal runaway during sustained overload without oscillation or latch-up. |
Applications
| Wearable Health Sensors | Smartphone Camera Modules |
|---|---|
Use Scenario: Powering optical heart-rate monitor (PPG) ASIC and analog front-end from coin cell or thin-film battery. IC Role / Device Role: Primary 3.3 V LDO supplying noise-sensitive analog signal chain and low-power MCU core. Use Value: Capacitor-free design saves 0.64 mm² board area; 45 µA IQ enables >2-year battery life at 10-second sampling intervals. |
Use Scenario: Providing clean 3.3 V bias to image sensor interface and autofocus motor driver ICs. IC Role / Device Role: Post-regulator after main PMIC, rejecting switcher noise before high-resolution ADC and timing-critical pixel readout. Use Value: 55 dB PSRR at 1 kHz suppresses 2 MHz buck converter harmonics, reducing image fixed-pattern noise by measurable dB. |
| Industrial Wireless Node | Portable Medical Diagnostic Device |
Use Scenario: Supplying LoRaWAN transceiver and ARM Cortex-M0+ MCU in sealed, maintenance-free field sensor. IC Role / Device Role: Standby-mode LDO maintaining real-time clock and wake-up logic while main system sleeps. Use Value: 0.1 µA shutdown current ensures <1 µA total system leakage, enabling 10+ year deployment on primary lithium thionyl chloride cells. |
Use Scenario: Delivering regulated 3.3 V to ECG analog front-end, SD card interface, and display controller in handheld EKG unit. IC Role / Device Role: Low-noise, low-dropout regulator isolating sensitive biopotential amplifiers from digital switching noise. Use Value: 17 µVRMS output noise (100 Hz–100 kHz) meets IEC 60601-2-27 ECG baseline wander requirements without additional filtering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCP140AMXC330TCG | Includes active output discharge (100 Ω pull-down on OUT during disable); otherwise identical electrical specs and pinout. | Required where rapid discharge of output rail is needed to meet system reset timing or avoid back-powering. | Select NCP140AMXC330TCG only if active discharge is explicitly required; NCP140BMXC330TCG avoids unintended discharge in multi-rail systems. |
| MCP1700T-3302E/MB | 150 mA max, 3.3 V fixed, 6 µA IQ, but requires minimum 1 µF output capacitor; SOT-23-5 package (2.9 mm × 1.6 mm). | Higher board area and BOM count due to mandatory capacitor; lower IQ benefits ultra-long-life applications where size is secondary. | Choose MCP1700T-3302E/MB only when lowest possible IQ dominates over footprint and capacitor elimination. |
Compared with NCP140AMXC330TCG, the NCP140BMXC330TCG trades active discharge capability for simpler system-level behavior and reduced risk of cross-rail interference; versus MCP1700T-3302E/MB, it delivers superior space efficiency and true capless operation at the cost of slightly higher quiescent current.
Availability
NCP140BMXC330TCG is available at Aetrix Electronics and suitable for battery-powered equipment, smartphones/tablets, and portable medical diagnostics requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for NCP140BMXC330TCG 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 specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, and consumer markets.
The NCP140 product line is engineered for ultra-low-power, space-constrained portable electronics - prioritizing capacitor-free stability, sub-100 µA quiescent operation, and miniature XDFN packaging to enable next-generation wearables and IoT edge nodes.
FAQ
What is the maximum input voltage rating for the NCP140BMXC330TCG?
The NCP140BMXC330TCG has an absolute maximum input voltage of 6 V. Its recommended operating input range is 1.6 V to 5.5 V. Exceeding 6 V may cause permanent damage. For reliable long-term operation, maintain VIN ≤ 5.5 V under all conditions including transient spikes, especially when used with unregulated battery sources.
Does the NCP140BMXC330TCG require input or output capacitors to remain stable?
No, the NCP140BMXC330TCG is specifically designed for capacitor-free operation - it remains stable with zero input or output capacitance. External capacitors (e.g., 1 µF ceramic) may be added to improve PSRR or load transient response, but they are never required for loop stability per the datasheet.
How does the enable pin (EN) function on the NCP140BMXC330TCG?
The EN pin enables or disables the NCP140BMXC330TCG: voltage ≥ 0.9 V turns regulation on; voltage ≤ 0.4 V forces shutdown with 0.1 µA typical current draw. Unlike the A-series, the NCP140BMXC330TCG has no active discharge - the OUT pin floats during disable, preserving downstream voltage states.
What is the thermal performance of the NCP140BMXC330TCG in its XDFN4 0.8 mm × 0.8 mm package?
In the XDFN4 0.8 mm × 0.8 mm package (Case 711BF), the NCP140BMXC330TCG has a junction-to-ambient thermal resistance (RJA) of 252°C/W on standard JEDEC test board. Effective thermal relief requires soldering the exposed pad directly to a solid GND plane - doubling copper area can reduce RJA by ~20%.
Is the NCP140BMXC330TCG RoHS compliant and lead-free?
Yes, the NCP140BMXC330TCG is Pb-free, halogen-free/BFR-free, and fully RoHS compliant per EU Directive 2011/65/EU. The "G" suffix in the part marking indicates compliance, and the XDFN4 package uses matte tin plating on terminals.
NCP140BMXC330TCG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 4-XFDFN 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):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.22V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 75 µA
- Current - Supply (Max):
- -
- PSRR:
- 62dB ~ 55dB (100Hz ~ 1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Temperature
- Operating Temperature:
- -40°C ~ 85°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-XDFN (0.8x0.8)
NCP140BMXC330TCG FAQ
1.How can I place an order for NCP140BMXC330TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP140BMXC330TCG 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 NCP140BMXC330TCG reliable?
The price and inventory of NCP140BMXC330TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP140BMXC330TCG is usually 5 days.
3.What payment methods are accepted for NCP140BMXC330TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP140BMXC330TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP140BMXC330TCG?
NCP140BMXC330TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP140BMXC330TCG 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 NCP140BMXC330TCG?
For technical support, including NCP140BMXC330TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP140BMXC330TCG requirements.
6.How does Aetrix verify that NCP140BMXC330TCG is sourced from the original manufacturer or authorized distributors?
All NCP140BMXC330TCG 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 NCP140BMXC330TCG meets industry standards.
7.What is the process for return or replacement of NCP140BMXC330TCG?
All NCP140BMXC330TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCP140BMXC330TCG, 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 NCP140BMXC330TCG part is unused and in its original packaging.
Return procedure for NCP140BMXC330TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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