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onsemi NCV8177AMTW090TCG
- Part No.:
- NCV8177AMTW090TCG
- Manufacturer:
- onsemi
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
NCV8177AMTW090TCG.pdf
- Description:
- LINEAR VREG 500 MA WITH ENABLE
- Quantity:
- Payment:
- Shipping:
Inventory:2,059
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Product details
Overview
NCV8177AMTW090TCG from onsemi is an automotive-grade CMOS low-dropout (LDO) linear voltage regulator delivering 500 mA output current with 0.90 V fixed output, 1.6 V to 5.5 V input range, and ±0.8% output voltage accuracy over −40°C to +125°C. It features fast transient response, 75 dB PSRR at 1 kHz, 54 µVRMS output noise (10 Hz–100 kHz), and integrated thermal shutdown (175°C) and over-current protection - designed for powering RF-sensitive blocks in automotive infotainment systems.
For engineers reviewing the NCV8177AMTW090TCG datasheet, pinout, applications, or equivalent options, this page delivers verified technical context, package-specific pin mapping, real-world use-value analysis, and two validated alternative parts - all grounded in the official onsemi NCV8177/D Rev. 11 datasheet and ordering documentation.
Technical Context
The NCV8177AMTW090TCG implements a PMOS pass transistor architecture enabling ultra-low dropout (110 mV typ. at 500 mA for VOUT ≥ 3.0 V) and reverse-current blocking. Its adaptive ground current design achieves 60 µA quiescent current under no-load conditions and reduces to 0.1 µA in shutdown mode via active-high EN control.
This WDFNW8-packaged variant includes output discharge functionality (NCV8177A series), pulling VOUT to GND through a 60 Ω internal resistor when disabled. It operates stably with only 1 µF ceramic output capacitance and supports full AEC-Q100 qualification for automotive ambient temperature operation (−40°C to +125°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 0.90 V ±0.8% over −40°C to +125°C - enables precise biasing of low-voltage logic and RF front-end ICs. |
| Max Output Current | 500 mA continuous - sufficient for powering multi-core MCUs, camera ISPs, or RF transceivers in compact automotive modules. |
| Input Voltage Range | 1.6 V to 5.5 V - supports direct connection to LiFePO4 batteries (2.5–3.65 V), 3.3 V rails, or post-DC/DC LDO inputs. |
| Dropout Voltage | 110 mV typ. at 500 mA (VOUT = 0.90 V) - maintains regulation even during cold-crank battery dips down to ~1.7 V. |
| PSRR & Noise | 75 dB @ 1 kHz; 54 µVRMS (10 Hz–100 kHz) - suppresses switching noise from adjacent DC/DC converters feeding RF receivers. |
| Quiescent Current | 60 µA typ. (active), 0.1 µA typ. (shutdown) - meets automotive always-on domain requirements for low-power wake-up circuits. |
| Thermal Protection | 175°C shutdown with 20°C hysteresis - prevents latch-up during sustained overload or poor PCB thermal design. |
Pinout & Package
NCV8177AMTW090TCG is housed in a wettable flank WDFNW8 package (2 mm × 2 mm, 0.5 mm pitch), featuring an exposed thermal pad (EPAD) tied to GND for enhanced power dissipation. Pin 6 is NC (not internally connected) but recommended for grounding to improve thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | IN | Main power input; accepts 1.6–5.5 V; must be decoupled with ≥1 µF X7R/X5R ceramic capacitor. |
| 2 | OUT | Regulated 0.90 V output; connects directly to load; requires ≥1 µF ceramic output capacitor. |
| 3 | FB | Feedback input; internally connected to OUT - no external resistor divider needed for fixed-output version. |
| 4 | GND | Power ground reference; must be low-impedance connection to PCB ground plane. |
| 5 | EN | Active-high enable; >1.0 V enables regulation; <0.4 V disables output and activates discharge (60 Ω to GND). |
| 6 | NC | No internal connection; recommended to tie to GND plane to improve thermal conduction from EPAD. |
| 7 | IN | Redundant input pin; electrically identical to Pin 1 and Pin 8 - must be shorted to them on PCB. |
| EPAD | Thermal Pad | Exposed copper pad beneath die; must be soldered to solid GND copper area for thermal management (θJA = 72°C/W). |
Key Features
| Feature | Design Value |
|---|---|
| Automotive Qualification | AEC-Q100 Grade 1 qualified (−40°C to +125°C ambient), PPAP-capable - suitable for instrument clusters and ADAS ECUs. |
| Output Discharge | Integrated 60 Ω discharge path activated during shutdown - eliminates residual voltage on downstream circuitry for safe state transitions. |
| Capacitor Compatibility | Stable with 1 µF ceramic output capacitors (X7R/X5R); no ESR requirement - simplifies BOM and layout in space-constrained modules. |
| Fast Transient Response | Sub-10 µs recovery from 50% load step (1 mA ↔ 500 mA); minimal undershoot/overshoot - critical for burst-mode digital loads. |
| Pb-Free & RoHS | Lead-free (Pb-free) construction with wettable flank leads - supports automated optical inspection (AOI) and high-yield reflow soldering. |
Applications
| Automotive Infotainment Power Rail | Camera Sensor Bias Supply |
|---|---|
|
Use Scenario: Powers RF transceiver ICs (e.g., Bluetooth/Wi-Fi SoCs) and audio codecs in head-unit systems where EMI sensitivity demands ultra-low noise. IC Role / Device Role / Timing Role: Primary low-noise post-regulator supplying clean 0.90 V to analog/RF sections after a buck converter. Use Value: 75 dB PSRR at 1 kHz and 54 µVRMS noise prevent AM/FM interference and bit errors in wireless links. |
Use Scenario: Supplies image sensor analog front-end (AFE) and ISP core logic in rear-view or surround-view cameras. IC Role / Device Role / Timing Role: Fixed-output LDO delivering stable 0.90 V to low-voltage sensor pixel arrays and timing generators. Use Value: ±0.8% accuracy and 110 mV dropout ensure consistent exposure control and frame synchronization across battery voltage swings. |
| Instrument Cluster Display Backlight Driver Bias | Always-On Microcontroller Core Supply |
|
Use Scenario: Provides regulated bias to LED driver ICs controlling TFT-LCD backlight brightness in digital instrument clusters. IC Role / Device Role / Timing Role: Secondary LDO generating precision 0.90 V reference for current-sense amplifiers and PWM dimming controllers. Use Value: Low 60 µA quiescent current and thermal shutdown prevent overheating in sealed dash-mounted enclosures. |
Use Scenario: Supplies real-time clock (RTC), CAN controller, and wake-up interrupt logic in vehicle body control modules (BCMs). IC Role / Device Role / Timing Role: Always-on LDO maintaining 0.90 V to low-power MCU cores during sleep modes (STOP/STANDBY). Use Value: 0.1 µA standby current and AEC-Q100 qualification ensure reliable wake-from-sleep operation over 15+ year vehicle lifetimes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8177AMX090TCG | XDFN4 package (1.0 mm × 1.0 mm); no wettable flanks; θJA = 223°C/W vs. 72°C/W; same electrical specs. | Better suited for ultra-dense layouts where footprint is prioritized over thermal performance or AOI capability. | Select when board space is critical and thermal load is ≤150 mW; verify solder joint inspection method compatibility. |
| TLV73309PDBVR | Non-automotive grade; 300 mA max output; 150 mV dropout at 300 mA; no AEC-Q100 qualification. | Acceptable for non-safety-critical consumer or industrial applications with lower current and reliability requirements. | Choose only for cost-sensitive, non-automotive designs where 500 mA and AEC-Q100 are not required. |
Compared with NCV8177AMTW090TCG, the XDFN4 variant trades thermal robustness and manufacturability for smaller size, while the TLV73309PDBVR sacrifices automotive qualification and output current - making NCV8177AMTW090TCG the sole option meeting full AEC-Q100, 500 mA, and wettable flank requirements in its 0.90 V class.
Availability
NCV8177AMTW090TCG is available at Aetrix Electronics and suitable for automotive infotainment systems, camera sensor modules, and instrument cluster electronics requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.
Supply support for NCV8177AMTW090TCG 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, sensors, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.
The NCV8177AMTW090TCG belongs to onsemi's automotive-qualified LDO portfolio, engineered specifically for noise-sensitive, high-reliability power domains in infotainment, ADAS, and body electronics - emphasizing low dropout, fast transient response, and robust thermal protection.
FAQ
What is the output voltage tolerance of NCV8177AMTW090TCG over temperature?
The NCV8177AMTW090TCG guarantees ±0.8% output voltage accuracy across the full operating junction temperature range of −40°C to +125°C. At +25°C, the tolerance tightens to ±0.8% (typical), and worst-case deviation remains within ±1.0% over temperature per the datasheet's ELECTRICAL CHARACTERISTICS table - critical for stable biasing of voltage-sensitive RF components.
Does NCV8177AMTW090TCG require external feedback resistors?
No, NCV8177AMTW090TCG is a fixed-output regulator with internal feedback. Pin 3 (FB) is internally connected to the OUT pin; no external resistor divider is needed or supported. This simplifies layout and eliminates resistor tolerance drift from affecting output accuracy.
What is the purpose of Pin 6 (NC) on NCV8177AMTW090TCG?
Pin 6 is Not Connected internally but is recommended to be tied to the PCB ground plane. Doing so improves thermal conduction from the die through the adjacent EPAD, lowering effective θJA and enhancing power dissipation capability - especially important in high-ambient-temperature automotive environments.
How does the output discharge function operate in NCV8177AMTW090TCG?
When the EN pin is pulled low (<0.4 V), NCV8177AMTW090TCG disables regulation and activates an internal 60 Ω discharge path between OUT and GND. This rapidly pulls the output voltage to near-zero, preventing floating nodes and ensuring deterministic power-down sequencing in safety-critical automotive subsystems.
Can NCV8177AMTW090TCG be used with input voltages below 1.6 V?
No - the absolute minimum input voltage for functional operation is 1.6 V, as specified in both Recommended Operating Conditions and Absolute Maximum Ratings. Operation below 1.6 V may result in loss of regulation, increased dropout, or undefined behavior; the device is not characterized or guaranteed below this threshold.
NCV8177AMTW090TCG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-WFDFN 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):
- 0.9V
- 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 (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 8-WDFNW (2x2)
NCV8177AMTW090TCG FAQ
1.How can I place an order for NCV8177AMTW090TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8177AMTW090TCG 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 NCV8177AMTW090TCG reliable?
The price and inventory of NCV8177AMTW090TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8177AMTW090TCG is usually 5 days.
3.What payment methods are accepted for NCV8177AMTW090TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8177AMTW090TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8177AMTW090TCG?
NCV8177AMTW090TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8177AMTW090TCG 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 NCV8177AMTW090TCG?
For technical support, including NCV8177AMTW090TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8177AMTW090TCG requirements.
6.How does Aetrix verify that NCV8177AMTW090TCG is sourced from the original manufacturer or authorized distributors?
All NCV8177AMTW090TCG 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 NCV8177AMTW090TCG meets industry standards.
7.What is the process for return or replacement of NCV8177AMTW090TCG?
All NCV8177AMTW090TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCV8177AMTW090TCG, 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 NCV8177AMTW090TCG part is unused and in its original packaging.
Return procedure for NCV8177AMTW090TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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