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onsemi NCV8177AMX075TCG
- Part No.:
- NCV8177AMX075TCG
- Manufacturer:
- onsemi
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
NCV8177AMX075TCG.pdf
- Description:
- IC REG LINEAR 0.75V 500MA 4XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,716
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Product details
Overview
NCV8177AMX075TCG from onsemi is a CMOS low-dropout (LDO) linear voltage regulator delivering 500 mA output current with fixed 0.75 V output, 1.6 V to 5.5 V input range, and 200 mV typical dropout at 500 mA (VOUT = 1.8 V). It features ±0.8% output accuracy, 75 dB PSRR at 1 kHz, and 54 µVRMS integrated noise (10 Hz–100 kHz), making it suitable for powering RF blocks in automotive infotainment systems.
For engineers reviewing the NCV8177AMX075TCG datasheet, pinout, applications, or equivalent options, key selection considerations include its AEC-Q100 qualification, output discharge function (A-version), XDFN4 1.0 mm × 1.0 mm package, thermal shutdown at 175°C, and stable operation with 1 µF ceramic output capacitors.
Technical Context
The NCV8177AMX075TCG integrates a PMOS pass transistor with adaptive ground current control, enabling 60 µA typical quiescent current under no-load conditions and <1 µA standby current when disabled. Its internal feedback loop uses a 0.7 V reference and external resistor divider for adjustable versions-but this variant is fixed-output (0.75 V), eliminating external FB components.
It implements over-current protection with 750 mA typical current limit, thermal shutdown with 20°C hysteresis, and active output discharge (60 Ω typical) during disable-critical for fast power-rail sequencing in automotive modules. The device operates across −40°C to +125°C ambient and supports fast transient response due to low output impedance and optimized internal compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 0.75 V - enables direct powering of ultra-low-voltage logic cores and RF bias rails without external resistors. |
| Max Output Current | 500 mA - sufficient for powering multiple low-power RF ICs or sensor signal chains in compact automotive ECUs. |
| Dropout Voltage | 295 mV typ. at 500 mA (VOUT = 0.75 V) - allows operation from single-cell LiFePO4 (2.5–3.65 V) or partially discharged 3.3 V rails. |
| PSRR | 75 dB at 1 kHz - suppresses switching noise from adjacent DC-DC converters, preserving signal integrity in RF receivers. |
| Output Noise | 54 µVRMS (10 Hz–100 kHz) - meets stringent noise requirements for high-gain analog front-ends and PLL VCO supplies. |
| Quiescent Current | 60 µA typ. - minimizes battery drain in always-on automotive modules such as telematics wake-up circuits. |
| Thermal Shutdown | 175°C with 20°C hysteresis - provides robust fault recovery in sealed enclosures without forced airflow. |
Pinout & Package
XDFN4 1.0 mm × 1.0 mm × 0.4 mm package with exposed thermal pad (EPAD); RoHS-compliant, Pb-free, wettable flank compatible.
| 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 return path for regulation and protection circuits; tied directly to EPAD for optimal thermal performance. |
| 3 (EN) | Enable input (active-high) | Logic-level control: >1.0 V enables regulation; <0.4 V disables output and activates discharge path (60 Ω). |
| 4 (IN) | Input voltage supply | Accepts 1.6–5.5 V; requires local 1 µF ceramic input capacitor to suppress source impedance effects. |
| EPAD | Exposed thermal pad | Must be soldered to solid ground plane to achieve RJA = 223°C/W and sustain full 500 mA load at elevated ambient. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualified | Grade 1 (−40°C to +125°C) - certified for safety-critical automotive applications including instrument clusters and ADAS sensors. |
| Output discharge function | 60 Ω typical pull-down (NCV8177A version) - ensures rapid VOUT decay during power-down, preventing latch-up in downstream logic. |
| Stable with 1 µF ceramic output cap | No ESR requirement - eliminates need for tantalum or polymer capacitors, reducing BOM cost and board space in space-constrained modules. |
| Low-noise architecture | 54 µVRMS noise floor - avoids degradation of SNR in precision ADC references and RF mixer bias networks. |
| Fast transient response | <10 µs recovery from 50% load step - maintains regulation during burst-mode digital processor activity in infotainment SoCs. |
Applications
| Automotive Infotainment RF Power | Camera Sensor Bias Supply |
|---|---|
|
Use Scenario: Powers RF transceiver ICs (e.g., Bluetooth/WiFi/BLE SoCs) in head unit modules where supply noise directly impacts receiver sensitivity. IC Role / Device Role / Timing Role: Primary LDO supplying clean 0.75 V bias to RF synthesizer VCO and LNA stages. Use Value: 75 dB PSRR and 54 µVRMS noise prevent reciprocal mixing and phase noise degradation, improving BER by >3 dB in 2.4 GHz links. |
Use Scenario: Supplies image sensor analog core and column ADC reference in rear-view camera modules operating in engine bay environments. IC Role / Device Role / Timing Role: Fixed-output LDO delivering stable 0.75 V to sensor pixel array and timing generator circuitry. Use Value: ±0.8% output accuracy and −40°C to +125°C operation ensure consistent dark current compensation and dynamic range across temperature extremes. |
| Instrument Cluster Microcontroller Core | Telematics Always-On Wake-Up Rail |
|
Use Scenario: Provides regulated 0.75 V supply to ARM Cortex-M7 core in digital instrument clusters requiring low-power retention modes. IC Role / Device Role / Timing Role: Low-quiescent LDO supporting deep-sleep states while maintaining real-time clock and CAN wake-up circuitry. Use Value: 60 µA typical IQ and <1 µA standby current extend battery backup duration beyond 72 hours during vehicle sleep cycles. |
Use Scenario: Powers GPS/GNSS receiver and cellular modem baseband in telematics control units that remain active during vehicle off-state. IC Role / Device Role / Timing Role: Enable-controlled LDO providing sequenced 0.75 V rail only when modem firmware initiates location reporting. Use Value: Active output discharge ensures rapid rail collapse upon disable, preventing false wake events caused by floating VOUT coupling into enable logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8177AMX075TCTG | Same electrical specs and XDFN4 package; differs only in tape-and-reel quantity (5000 vs. 3000 units per reel) and date-code marking format. | No functional difference; identical use in automotive PCB assembly lines and reflow profiles. | Select based on distributor inventory and production lot traceability requirements-not electrical or mechanical compatibility. |
| TPS7A0533PDBVR | Fixed 3.3 V output, 200 mA max, 1.4 V min input, 170 mV dropout at 200 mA; no output discharge; SOT-23-5 package. | Not suitable for 0.75 V or 500 mA loads; lacks AEC-Q100 qualification and automotive temp range. | Only consider for non-automotive, lower-current, higher-VOUT applications where cost and footprint are prioritized over qualification and discharge capability. |
Compared with NCV8177AMX075TCG, the NCV8177AMX075TCTG offers identical performance and fit but differs in packaging logistics, while TPS7A0533PDBVR trades automotive reliability and output discharge for smaller size and lower cost in non-qualified consumer designs.
Availability
NCV8177AMX075TCG is available at Aetrix Electronics and suitable for automotive infotainment systems, camera sensor modules, and instrument cluster electronics requiring stable component supply with AEC-Q100 compliance, low-noise regulation, and fast transient response.
Supply support for NCV8177AMX075TCG 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 manufacturer specializing in energy-efficient silicon solutions for automotive, industrial, cloud, and IoT applications.
The NCV8177AMX075TCG belongs to onsemi's automotive-grade LDO family, designed specifically to meet stringent noise, transient, and reliability requirements of modern vehicle electronics-including RF subsystems, ADAS sensors, and digital cockpit platforms.
FAQ
What is the output voltage tolerance of the NCV8177AMX075TCG over temperature?
The NCV8177AMX075TCG guarantees ±1.5% output voltage accuracy across −40°C to +125°C junction temperature, based on datasheet Electrical Characteristics (Table 4, VOUT_NOM < 1.8 V row). At +25°C, tolerance is tighter at ±1.2%. This stability is achieved via laser-trimmed internal reference and process-compensated error amplifier, critical for biasing RF circuits where voltage drift directly impacts gain linearity.
Does the NCV8177AMX075TCG require an external feedback resistor network?
No, the NCV8177AMX075TCG is a fixed-output LDO with internally set 0.75 V regulation, eliminating the need for external feedback resistors. Unlike adjustable variants (e.g., NCV8177AMXxxTCG with FB pin), this part uses pin 3 as EN and has no FB terminal-simplifying layout and reducing component count in space-constrained automotive modules.
How does the output discharge function operate in the NCV8177AMX075TCG?
When the EN pin is pulled below 0.4 V, the NCV8177AMX075TCG disables the pass transistor and activates an internal 60 Ω (typ.) NMOS discharge switch between OUT and GND. This pulls VOUT to ground within microseconds, preventing residual charge from interfering with downstream logic reset sequencing-a key requirement in automotive power-domain isolation schemes.
What is the maximum allowable input voltage for the NCV8177AMX075TCG?
The absolute maximum input voltage for the NCV8177AMX075TCG is 6.0 V (per Absolute Maximum Ratings table). However, recommended operation limits input to 5.5 V. Exceeding 6.0 V risks permanent damage to the PMOS pass transistor gate oxide and internal bandgap reference circuitry-even brief transients above this threshold require external clamping.
Can the NCV8177AMX075TCG be used with 0201-size ceramic capacitors?
Yes-the NCV8177AMX075TCG is stable with 1 µF X7R/X5R ceramic capacitors down to 0201 size, provided effective capacitance remains ≥0.8 µF under DC bias and temperature. Datasheet Application Information explicitly recommends 0201/0402 packages to minimize solution size, though derating curves must be consulted to confirm actual Ceff at 0.75 V bias and −40°C/+125°C.
NCV8177AMX075TCG 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):
- 0.75V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- 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)
NCV8177AMX075TCG FAQ
1.How can I place an order for NCV8177AMX075TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8177AMX075TCG 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 NCV8177AMX075TCG reliable?
The price and inventory of NCV8177AMX075TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8177AMX075TCG is usually 5 days.
3.What payment methods are accepted for NCV8177AMX075TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8177AMX075TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8177AMX075TCG?
NCV8177AMX075TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8177AMX075TCG 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 NCV8177AMX075TCG?
For technical support, including NCV8177AMX075TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8177AMX075TCG requirements.
6.How does Aetrix verify that NCV8177AMX075TCG is sourced from the original manufacturer or authorized distributors?
All NCV8177AMX075TCG 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 NCV8177AMX075TCG meets industry standards.
7.What is the process for return or replacement of NCV8177AMX075TCG?
All NCV8177AMX075TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCV8177AMX075TCG, 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 NCV8177AMX075TCG part is unused and in its original packaging.
Return procedure for NCV8177AMX075TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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