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onsemi NCP176BMX300TCG
- Part No.:
- NCP176BMX300TCG
- Manufacturer:
- onsemi
- Package:
- 6-XFDFN Exposed Pad
- Datasheet:
-
NCP176BMX300TCG.pdf
- Description:
- IC REG LINEAR 3V 500MA 6XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,405
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Product details
Overview
NCP176BMX300TCG from onsemi is a CMOS low-dropout (LDO) linear regulator delivering 500 mA output current with 3.0 V fixed output voltage, 1.4 V to 5.5 V input range, and 130 mV typical dropout at 500 mA. It features ±0.8% output accuracy (VOUT > 1.8 V), 60 µA quiescent current, and thermal shutdown at 165°C. It powers noise-sensitive analog circuitry in portable battery-powered systems.
For engineers reviewing the NCP176BMX300TCG datasheet, pinout, applications, or equivalent options, key selection criteria include fast transient response, compatibility with 1 µF ceramic output capacitors, absence of output discharge function (B-version), stable operation down to 1.4 V input, and XDFN6 1.2 mm × 1.2 mm package constraints.
Technical Context
The NCP176BMX300TCG uses a PMOS pass transistor architecture enabling ultra-low dropout and reverse-current protection via inherent body diode behavior. Its adaptive ground current design maintains 60 µA quiescent current at no load while supporting up to 500 mA continuous output.
Internal soft-start suppresses inrush current during enable, and the EN pin (active-high, 1.0 V threshold) provides precise ON/OFF control. Thermal shutdown (165°C) with 20°C hysteresis and overcurrent protection (750 mA short-circuit limit) ensure robust fault handling across −40°C to +85°C operating temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0 V ±0.8% (guaranteed over −40°C to +85°C) |
| Max Output Current | 500 mA continuous; internally limited to 750 mA short-circuit peak |
| Dropout Voltage | 130 mV typ. at 500 mA (VOUT = 3.0 V), enabling regulation from VIN ≥ 3.13 V |
| Quiescent Current | 60 µA typ. at no load; enables long battery life in standby |
| Input Voltage Range | 1.4 V to 5.5 V - supports single-cell Li-ion, Li-polymer, and multi-cell alkaline inputs |
| PSRR | 75 dB at 1 kHz - suppresses ripple from noisy switching supplies feeding the LDO |
| Thermal Shutdown | 165°C activation with 20°C hysteresis - prevents permanent damage during sustained overload |
Pinout & Package
The NCP176BMX300TCG is housed in a 6-pin XDFN6 package (1.2 mm × 1.2 mm × 0.4 mm, case 711AT), with exposed pad (EPAD) recommended for grounding to improve thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | LDO regulated output | Delivers stable 3.0 V to load; requires 1 µF ceramic capacitor placed adjacent to pin |
| 2 - FB | Feedback input | Not used for fixed-output version; internally connected to set 3.0 V output |
| 3 - GND | Power ground reference | Primary return path for load current and internal bias; must connect to low-impedance ground plane |
| 4 - EN | Enable control input | Active-high logic input (1.0 V threshold); ties to IN if always-on operation required |
| 5 - N/C | No internal connection | May be tied to ground plane to enhance thermal conduction without electrical impact |
| 6 - IN | Input power supply | Accepts 1.4–5.5 V; requires local 1 µF ceramic capacitor to minimize trace inductance effects |
| EPAD | Exposed thermal pad | Recommended connection to GND plane for thermal relief; improves θJA by reducing junction-to-ambient resistance |
Key Features
| Feature | Design Value |
|---|---|
| Fast transient response | Stabilizes within microseconds after load steps - critical for powering image sensors and RF ICs |
| Ultra-low quiescent current | 60 µA typ. at zero load - extends battery runtime in always-on monitoring circuits |
| Small ceramic capacitor stability | Stable with ≥0.8 µF X7R/X5R ceramics - eliminates need for larger, higher-ESR tantalum capacitors |
| Integrated protection suite | Overcurrent, thermal shutdown, and input undervoltage lockout - reduces external component count |
| No output discharge function | B-version excludes active pull-down transistor - avoids unintended discharge of downstream capacitance during disable |
Applications
| Mobile Camera Modules | Wearable Health Sensors |
|---|---|
Use Scenario: Powering high-resolution CMOS image sensors and ISP processors in smartphones and action cameras. IC Role / Device Role / Timing Role: Primary 3.0 V LDO supplying analog front-end and digital core blocks with low-noise, fast-transient regulation. Use Value: 48 µVRMS output noise and 75 dB PSRR prevent sensor readout artifacts and color distortion under dynamic lighting. | Use Scenario: Supplying ECG, PPG, and accelerometer signal chains in compact wearable patches and smart bands. IC Role / Device Role / Timing Role: Low-quiescent, fixed-output LDO delivering clean 3.0 V to precision analog front-ends and low-power MCUs. Use Value: 60 µA IQ enables multi-week battery life in always-on sensing mode without compromising ADC SNR. |
| Industrial IoT Edge Nodes | Portable Medical Diagnostics |
Use Scenario: Regulating power for LoRaWAN/Wi-Fi/BLE radio modules and microcontrollers in battery-operated gateways. IC Role / Device Role / Timing Role: Input-stage LDO accepting wide-input (1.4–5.5 V) from primary cell or energy harvesting sources. Use Value: 1.4 V minimum VIN supports direct single-cell LiFePO₄ (2.5–3.65 V) or two-alkaline (2.0–3.2 V) operation with margin. | Use Scenario: Providing stable 3.0 V to portable ultrasound transceivers, glucose meters, and pulse oximeters. IC Role / Device Role / Timing Role: Safety-relevant power rail for analog signal conditioning and data acquisition subsystems. Use Value: Thermal shutdown (165°C) and overcurrent protection meet IEC 60601-1 creepage/clearance and fault-safety requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1826T-3002E/DB | 3.0 V fixed, 500 mA, 190 mV dropout at 500 mA, 75 µA IQ, SOT-23-5 package | Larger footprint, higher dropout, no EN pin - less suitable for space-constrained or enable-controlled designs | Select when board layout allows SOT-23 and enable control is unnecessary |
| TZ2201030000000 | 3.0 V fixed, 500 mA, 150 mV dropout at 500 mA, 55 µA IQ, XDFN6 1.2×1.2 mm package | Includes output discharge (A-version), slightly lower IQ but lacks thermal hysteresis spec | Prefer when active output discharge is required and thermal hysteresis is not mission-critical |
Compared with MCP1826T-3002E/DB and TZ2201030000000, the NCP176BMX300TCG offers superior dropout (130 mV vs. ≥150 mV), integrated EN control, and verified thermal hysteresis - making it optimal for compact, battery-sensitive, and enable-governed portable systems.
Availability
NCP176BMX300TCG is available at Aetrix Electronics and suitable for mobile camera modules, wearable health sensors, and industrial IoT edge nodes requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for NCP176BMX300TCG 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 technologies for automotive, industrial, cloud, medical, and IoT applications.
The NCP176BMX300TCG belongs to onsemi's high-performance LDO family designed specifically for noise-sensitive, battery-powered portable electronics demanding ultra-low IQ, fast transient response, and minimal solution size.
FAQ
What is the output voltage tolerance of the NCP176BMX300TCG over temperature?
The NCP176BMX300TCG delivers 3.0 V output with ±0.8% accuracy over −40°C to +85°C ambient temperature, as guaranteed in Table 5 of the datasheet. At 25°C, tolerance tightens to ±0.8% (±24 mV). This stability ensures reliable operation for precision analog loads like image sensors and ADC references without external trimming.
Does the NCP176BMX300TCG include output discharge functionality?
No, the NCP176BMX300TCG is the "B" variant and does not include output discharge. Unlike the "A" version (e.g., NCP176AMX300TCG), it lacks an internal discharge transistor. When disabled via the EN pin, the output remains floating - preserving charge on downstream capacitance, which may be required in certain sequencing or power-domain isolation schemes.
What is the minimum input voltage required for the NCP176BMX300TCG to regulate 3.0 V output at full load?
The NCP176BMX300TCG requires a minimum input voltage of 3.13 V to maintain 3.0 V regulation at 500 mA load, based on its 130 mV typical dropout voltage (VDO = VIN − VOUT). At light loads, dropout decreases further - enabling regulation from as low as 3.02 V at 100 mA per Figure 8 in the datasheet.
Can the NCP176BMX300TCG operate with ceramic output capacitors smaller than 1 µF?
Yes - the NCP176BMX300TCG is stable with a minimum effective output capacitance of 0.8 µF, as specified in the Applications Information section. However, using ≤0.8 µF may degrade load transient response and high-frequency PSRR. For optimal performance in noise-sensitive applications, 1 µF X7R/X5R ceramic capacitors placed adjacent to the OUT and GND pins are strongly recommended.
How does the EN pin behavior differ between the NCP176BMX300TCG and the A-version?
The EN pin functions identically in both versions: active-high with 1.0 V threshold and 150 nA internal pull-down. The only difference is that the A-version activates its output discharge transistor when EN is low, while the NCP176BMX300TCG (B-version) leaves the output floating. No change to EN drive requirements or timing is needed when substituting between A and B variants.
NCP176BMX300TCG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 6-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):
- 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.165V @ 500ma
- Current - Output:
- 500mA
- Current - Quiescent (Iq):
- 90 µA
- Current - Supply (Max):
- -
- 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:
- 6-XDFN (1.2x1.2)
NCP176BMX300TCG FAQ
1.How can I place an order for NCP176BMX300TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP176BMX300TCG 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 NCP176BMX300TCG reliable?
The price and inventory of NCP176BMX300TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP176BMX300TCG is usually 5 days.
3.What payment methods are accepted for NCP176BMX300TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP176BMX300TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP176BMX300TCG?
NCP176BMX300TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP176BMX300TCG 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 NCP176BMX300TCG?
For technical support, including NCP176BMX300TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP176BMX300TCG requirements.
6.How does Aetrix verify that NCP176BMX300TCG is sourced from the original manufacturer or authorized distributors?
All NCP176BMX300TCG 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 NCP176BMX300TCG meets industry standards.
7.What is the process for return or replacement of NCP176BMX300TCG?
All NCP176BMX300TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCP176BMX300TCG, 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 NCP176BMX300TCG part is unused and in its original packaging.
Return procedure for NCP176BMX300TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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