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onsemi NCV8177BMX330TCG
- Part No.:
- NCV8177BMX330TCG
- Manufacturer:
- onsemi
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
NCV8177BMX330TCG.pdf
- Description:
- IC REG LINEAR 3.3V 500MA 4XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,992
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Product details
Overview
NCV8177BMX330TCG from onsemi is a 3.3 V, 500 mA automotive-grade CMOS LDO voltage regulator in XDFN4 (1.0 mm × 1.0 mm) package, featuring 200 mV typical dropout at 500 mA, ±0.8% output accuracy, and 75 dB PSRR at 1 kHz - designed for powering RF blocks and noise-sensitive analog circuitry in automotive infotainment systems.
For engineers reviewing the NCV8177BMX330TCG datasheet, pinout, applications, or equivalent options, key selection considerations include its 1.6 V to 5.5 V input range, absence of output discharge function (B-version), thermal shutdown at 175°C, and compatibility with 1 µF ceramic output capacitors.
Technical Context
The NCV8177BMX330TCG implements a PMOS pass transistor architecture enabling low dropout and reverse-current protection via inherent body diode behavior. Its adaptive ground current design achieves 60 µA quiescent current under no-load conditions while maintaining fast transient response.
Internal circuitry includes a precision 0.7 V reference, soft-start functionality, over-current protection with 750 mA typical current limit, and thermal shutdown with 20°C hysteresis. The device operates across −40°C to +125°C ambient and is AEC-Q100 qualified for automotive use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.30 V ±0.8% over −40°C to +125°C - ensures stable supply for 3.3 V logic and RF ICs without external feedback. |
| Max Output Current | 500 mA continuous - supports moderate-power sensors, camera modules, and microcontroller peripherals. |
| Dropout Voltage | 110–190 mV (typ.) at 3.0–3.6 V output and 500 mA - enables operation down to 3.41 V input for 3.3 V output, critical in battery-powered automotive subsystems. |
| PSRR | 75 dB at 1 kHz - suppresses ripple from noisy DC-DC stages upstream, preserving signal integrity in RF receivers and ADC front-ends. |
| Quiescent Current | 60 µA (typ.) at no load - minimizes standby power loss in always-on vehicle modules like telematics and CAN gateways. |
| Thermal Shutdown | 175°C activation with 20°C hysteresis - provides robust fault recovery during sustained overload or poor PCB thermal design. |
| Input Voltage Range | 1.6 V to 5.5 V - accommodates wide-input automotive supplies including cold-crank (down to ~4.5 V) and start-stop transients. |
Pinout & Package
XDFN4 package (Case 711AJ), 1.0 mm × 1.0 mm × 0.4 mm, with exposed thermal pad (EPAD) requiring connection to PCB ground plane for optimal thermal performance (RJA = 223°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Regulated output voltage | Main power rail output; must be decoupled with ≥1 µF X7R/X5R ceramic capacitor placed adjacent to pin. |
| 2 (GND) | Power supply ground | Reference node for regulation and enable logic; connects internally to EPAD for thermal conduction. |
| 3 (EN) | Enable input (active high) | Logic-level control: >1.0 V enables regulation; <0.4 V disables output and reduces IN current to 0.1 µA typ. |
| 4 (IN) | Input voltage supply | Primary power input; requires ≥1 µF ceramic capacitor close to pin to suppress high-frequency noise and stabilize loop. |
Key Features
| Feature | Design Value |
|---|---|
| Stable with 1 µF ceramic output capacitor | Eliminates need for larger or higher-ESR capacitors, reducing BOM cost and board area in space-constrained automotive modules. |
| No output discharge function (B-version) | Prevents unintended discharge of downstream capacitance during disable - essential for systems requiring controlled power-down sequencing. |
| AEC-Q100 Grade 1 qualification | Validated for −40°C to +125°C operation with PPAP capability - meets functional safety requirements for non-safety-critical automotive ECUs. |
| Low noise: 54 µVRMS (10 Hz–100 kHz) | Minimizes phase noise in local oscillators and quantization error in precision ADCs used in radar and audio processing. |
| Over-current and thermal protection | Internally limits output to 750 mA typ. and shuts down at 175°C - enables robust operation without external current-sense or thermal monitoring circuits. |
Applications
| Automotive Infotainment Power | Camera Module Supply |
|---|---|
Use Scenario: Providing clean 3.3 V bias to RF tuners, digital signal processors, and HDMI PHYs in head-unit systems. IC Role / Device Role / Timing Role: Primary low-noise post-regulator after buck converter, delivering stable voltage with minimal ripple-induced jitter. Use Value: 75 dB PSRR and 54 µVRMS noise prevent degradation of RF sensitivity and video signal-to-noise ratio. |
Use Scenario: Powering image sensor interfaces and ISP cores in rear-view and surround-view cameras. IC Role / Device Role / Timing Role: Local LDO supplying 3.3 V I/O rails with fast load transient response to handle burst pixel data transfers. Use Value: 200 mV dropout at 500 mA allows operation during low-battery conditions while maintaining timing margin for MIPI CSI-2 links. |
| Instrument Cluster Display | Telematics Control Unit |
Use Scenario: Regulating 3.3 V for TFT-LCD gamma reference buffers and touch controller ASICs. IC Role / Device Role / Timing Role: Low-quiescent-current (60 µA) LDO supporting always-on display backlight dimming logic and wake-up detection. Use Value: Enables <1 µA system standby current when combined with EN-controlled shutdown, meeting OEM low-power requirements. |
Use Scenario: Supplying 3.3 V to cellular modem baseband, GNSS receivers, and CAN transceivers in connected vehicle gateways. IC Role / Device Role / Timing Role: Fault-tolerant regulator with thermal shutdown and over-current protection for mission-critical communications subsystems. Use Value: AEC-Q100 qualification and 175°C thermal cutoff ensure reliability during extended high-temperature cabin operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8177AMX330TCG | Same package and output voltage, but includes active output discharge (60 Ω typical) on disable. | Suitable where rapid output discharge is required for system-level power sequencing or ESD-safe hot-plug behavior. | Select NCV8177AMX330TCG only if output discharge is explicitly needed; otherwise NCV8177BMX330TCG avoids unintended discharge paths. |
| TLV73333PDBVR | 3.3 V, 300 mA, SOT-23-5, 250 mV dropout at 300 mA, 50 µA IQ, no AEC-Q100 qualification. | Intended for industrial or consumer portable devices - lacks automotive temperature range and qualification. | Use TLV73333PDBVR only in non-automotive designs; NCV8177BMX330TCG is mandatory for AEC-Q100-compliant automotive modules. |
Compared with NCV8177AMX330TCG, the NCV8177BMX330TCG eliminates output discharge to prevent uncontrolled discharge of downstream capacitance, while both share identical electrical specs and automotive qualification. Compared with TLV73333PDBVR, the NCV8177BMX330TCG delivers higher current, lower dropout, and full automotive qualification - making it the sole viable option for under-hood and infotainment applications.
Availability
NCV8177BMX330TCG is available at Aetrix Electronics and suitable for automotive infotainment systems, camera modules, and instrument cluster displays requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.
Supply support for NCV8177BMX330TCG 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 (Semiconductor Components Industries, LLC) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCV8177BMX330TCG belongs to onsemi's automotive-qualified linear regulator product line, engineered specifically for noise-sensitive RF and analog subsystems in vehicles - emphasizing low dropout, high PSRR, and robust thermal protection.
FAQ
What is the output voltage tolerance of the NCV8177BMX330TCG over temperature?
The NCV8177BMX330TCG maintains ±0.8% output voltage accuracy across −40°C to +125°C junction temperature. At 25°C, tolerance tightens to ±0.8%, and over full temperature range it remains within ±1.0% for 3.3 V nominal output - verified per Electrical Characteristics table in the official datasheet (Rev. 11, September 2022).
Does the NCV8177BMX330TCG include output discharge functionality?
No, the NCV8177BMX330TCG is the "B" version and does not include output discharge. Only the "A" variant (e.g., NCV8177AMX330TCG) integrates an internal 60 Ω discharge path activated when EN is low. This distinction is explicitly defined in the datasheet's Features section and Ordering Information table.
What is the minimum input voltage required for the NCV8177BMX330TCG to regulate 3.3 V at 500 mA?
At 500 mA load and 3.3 V output, the NCV8177BMX330TCG requires a minimum input voltage of 3.41 V - calculated using the worst-case dropout of 190 mV (max) from the Electrical Characteristics table. For reliable operation, VIN should exceed 3.41 V across all temperature and process corners.
Can the NCV8177BMX330TCG operate with a 0.82 µF output capacitor?
No - the NCV8177BMX330TCG requires a minimum effective output capacitance of 0.8 µF, but the datasheet specifies 1.0 µF X7R/X5R ceramic as the recommended value for guaranteed stability and optimal transient response. Using 0.82 µF risks marginal phase margin and degraded load step performance, especially over temperature and DC bias.
Is the NCV8177BMX330TCG pin-compatible with other variants in the NCV8177 family?
Yes - all XDFN4-packaged NCV8177 variants (e.g., NCV8177AMX180TCG, NCV8177BMX250TCG) share identical pinout: Pin 1 = OUT, Pin 2 = GND, Pin 3 = EN, Pin 4 = IN. This allows direct voltage-option substitution on the same PCB layout, provided thermal and electrical validation confirms suitability for the new output voltage.
NCV8177BMX330TCG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 4-XDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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):
- 0.19V @ 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 ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-XDFN (1x1)
NCV8177BMX330TCG FAQ
1.How can I place an order for NCV8177BMX330TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8177BMX330TCG 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 NCV8177BMX330TCG reliable?
The price and inventory of NCV8177BMX330TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8177BMX330TCG is usually 5 days.
3.What payment methods are accepted for NCV8177BMX330TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8177BMX330TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8177BMX330TCG?
NCV8177BMX330TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8177BMX330TCG 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 NCV8177BMX330TCG?
For technical support, including NCV8177BMX330TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8177BMX330TCG requirements.
6.How does Aetrix verify that NCV8177BMX330TCG is sourced from the original manufacturer or authorized distributors?
All NCV8177BMX330TCG 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 NCV8177BMX330TCG meets industry standards.
7.What is the process for return or replacement of NCV8177BMX330TCG?
All NCV8177BMX330TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCV8177BMX330TCG, 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 NCV8177BMX330TCG part is unused and in its original packaging.
Return procedure for NCV8177BMX330TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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