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onsemi NCV8177BMX150TCG
- Part No.:
- NCV8177BMX150TCG
- Manufacturer:
- onsemi
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
NCV8177BMX150TCG.pdf
- Description:
- IC REG LINEAR 1.5V 500MA 4XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,212
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Product details
Overview
NCV8177BMX150TCG from onsemi is an automotive-grade CMOS low-dropout (LDO) linear voltage regulator delivering 500 mA output current with fixed 1.5 V output, 1.6 V to 5.5 V input range, and ±0.8% output voltage accuracy over −40°C to +125°C. It features 200 mV typical dropout at 500 mA (VOUT = 1.8 V), 75 dB PSRR at 1 kHz, and 54 µVRMS output noise (10 Hz–100 kHz), making it suitable for powering RF blocks in automotive infotainment systems.
For engineers reviewing the NCV8177BMX150TCG datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q100 qualification, absence of output discharge (B-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 NCV8177BMX150TCG implements a PMOS pass transistor architecture enabling ultra-low dropout and reverse-current protection via inherent body diode management. Its adaptive ground current design achieves 60 µA typical quiescent current under no-load conditions and drops to 0.1 µA in standby mode when EN is low.
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 without output discharge (B-variant), distinguishing it from the A-version, and requires external 1 µF input/output ceramic capacitors for stability and transient performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5 V ±0.8% over −40°C to +125°C - ensures stable biasing for noise-sensitive analog/RF circuits |
| Max Output Current | 500 mA continuous - supports moderate-power subsystems like camera sensors or audio codecs |
| Dropout Voltage | 295 mV typ. at 500 mA (VOUT = 1.5 V) - enables regulation from 1.795 V input, critical for battery-powered automotive modules |
| PSRR | 75 dB at 1 kHz - suppresses ripple from noisy power rails, preserving signal integrity in RF front-ends |
| Output Noise | 54 µVRMS (10 Hz–100 kHz) - meets stringent low-noise requirements for ADC references and PLL supplies |
| Quiescent Current | 60 µA typ. at no load - minimizes standby power loss in always-on vehicle domains |
| Thermal Shutdown | 175°C activation with 20°C hysteresis - provides robust fault recovery in high-ambient under-hood environments |
Pinout & Package
XDFN4 package: 1.0 mm × 1.0 mm × 0.4 mm body, 4-pin leadless with exposed thermal pad (EPAD). Requires solder connection of EPAD to PCB ground plane for thermal dissipation and electrical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Regulated output voltage | Delivers stable 1.5 V to load; must be decoupled with ≥1 µF ceramic capacitor placed adjacent to pin |
| 2 - GND | Power supply ground reference | Primary return path for load current and internal bias; connects to EPAD for optimal thermal conduction |
| 3 - IN | Input voltage supply | Accepts 1.6–5.5 V; requires ≥1 µF ceramic input capacitor near pin to suppress source impedance effects |
| 4 - EN | Enable control input (active-high) | Drives regulator ON when >1.0 V; pulls output off and reduces IQ to 0.1 µA when <0.4 V; internal 300 nA pull-down ensures default OFF state |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for −40°C to +125°C ambient operation - enables use in engine bay, instrument cluster, and ADAS ECU power rails |
| No output discharge function | B-variant architecture eliminates active discharge path - prevents unintended discharge of downstream capacitance during shutdown |
| Stable with 1 µF ceramic output capacitor | Reduces BOM count and board area vs. traditional LDOs requiring ≥10 µF tantalum - ideal for space-constrained automotive modules |
| Low 200 mV dropout at 1.8 V output | Enables efficient regulation from single-cell LiFePO4 or partially discharged 12 V systems - extends functional battery life |
| 75 dB PSRR at 1 kHz | Attenuates switching regulator ripple before sensitive analog stages - eliminates need for additional LC filtering in RF supply chains |
Applications
| Automotive Infotainment RF Power | Camera Sensor Bias Supply |
|---|---|
Use Scenario: Powers RF transceiver ICs (e.g., Bluetooth/WiFi modules) in head unit or telematics control units where supply noise directly impacts receiver sensitivity. IC Role / Device Role / Timing Role: Primary low-noise post-regulator supplying clean 1.5 V to RF IC VDD_IO or VDDA rails. Use Value: 54 µVRMS noise and 75 dB PSRR prevent desensitization of sub-GHz receivers; AEC-Q100 compliance ensures reliability across vehicle lifetime. |
Use Scenario: Supplies regulated 1.5 V to high-resolution CMOS image sensor analog front-end (AFE) and timing generator circuits. IC Role / Device Role / Timing Role: Precision voltage source for sensor pixel bias and clock distribution circuitry requiring minimal supply-induced jitter. Use Value: ±0.8% output accuracy maintains consistent sensor gain calibration; fast transient response preserves image uniformity during exposure mode changes. |
| Instrument Cluster Display Backlight Driver | Automotive Camera Module Core Logic |
Use Scenario: Provides stable 1.5 V to LED driver IC logic and communication interfaces (I²C/SPI) in digital instrument clusters operating under wide temperature swings. IC Role / Device Role / Timing Role: System-level LDO for digital control domain, isolated from noisy display power rails. Use Value: 60 µA quiescent current minimizes parasitic drain in sleep mode; thermal shutdown protects against enclosure overheating during prolonged sun exposure. |
Use Scenario: Powers core logic (e.g., ISP, microcontroller peripherals) in compact rear-view or surround-view camera modules mounted externally. IC Role / Device Role / Timing Role: Main system regulator delivering 1.5 V to low-power ARM Cortex-M cores and memory interfaces. Use Value: XDFN4 1.0 mm × 1.0 mm footprint enables integration into 8 mm × 8 mm camera housings; 500 mA capability supports burst-mode image processing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8177AMX150TCG | Same 1.5 V output, but includes active output discharge (A-variant) | Required where rapid output voltage decay is needed after shutdown (e.g., to meet ISO 11898 bus idle timing) | Select only if output discharge is explicitly required; otherwise NCV8177BMX150TCG avoids unnecessary discharge path leakage |
| TPS74515PQWDRBRQ1 | 1.5 V fixed, 500 mA, 175°C thermal shutdown, but higher 100 µA quiescent current and 300 mV dropout at 500 mA | Suitable for non-AEC-Q100 designs or where TI's automotive qualification scope better matches program requirements | Prefer NCV8177BMX150TCG for lower IQ and tighter output accuracy; choose TPS74515PQWDRBRQ1 only if TI supply chain alignment is mandatory |
Compared with NCV8177AMX150TCG and TPS74515PQWDRBRQ1, the NCV8177BMX150TCG offers the lowest quiescent current (60 µA) and highest output accuracy (±0.8%) in its class, while maintaining identical thermal and current ratings - making it optimal for always-on, noise-critical automotive subsystems where output discharge is not required.
Availability
NCV8177BMX150TCG is available at Aetrix Electronics and suitable for automotive infotainment, camera sensor bias, and instrument cluster display applications requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.
Supply support for NCV8177BMX150TCG 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 is a global semiconductor supplier focused on energy-efficient electronics, with leadership in automotive, industrial, cloud, and IoT markets. It delivers silicon solutions optimized for safety, reliability, and sustainability.
The NCV8177 series belongs to onsemi's automotive power management portfolio, designed specifically for noise-sensitive, thermally demanding subsystems in vehicles - including infotainment, ADAS, and body electronics - where AEC-Q100 Grade 1 operation and low PSRR are essential.
FAQ
What is the output voltage tolerance of the NCV8177BMX150TCG over temperature?
The NCV8177BMX150TCG 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%, and the datasheet confirms this specification is production-tested and guaranteed over temperature. This level of precision ensures reliable operation in automotive environments where thermal cycling can affect sensor calibration and RF performance. The NCV8177BMX150TCG uses a trimmed bandgap reference to maintain stability without external feedback components.
Does the NCV8177BMX150TCG include output discharge functionality?
No, the NCV8177BMX150TCG does not include output discharge functionality. The "B" suffix explicitly denotes the version without active discharge, unlike the "A" variant (e.g., NCV8177AMX150TCG). When disabled via the EN pin, the NCV8177BMX150TCG disconnects the pass transistor but leaves the output floating - meaning external circuitry must manage residual charge on downstream capacitance. This behavior is confirmed in the datasheet's feature list, pin function table, and internal block diagram for the B-variant.
What package type and dimensions does the NCV8177BMX150TCG use?
The NCV8177BMX150TCG uses the XDFN4 (Case 711AJ) package: 1.0 mm × 1.0 mm × 0.4 mm body with 0.65 mm pitch, 4 I/O pads plus an exposed thermal pad (EPAD). The EPAD must be soldered to a PCB ground plane for thermal and electrical performance. This package is distinct from the WDFNW8 option used by other variants and is optimized for ultra-compact automotive modules where board space is constrained. Mechanical drawings and marking diagrams are provided on pages 11–12 of the official datasheet.
What is the minimum input voltage required for the NCV8177BMX150TCG to regulate 1.5 V output?
The NCV8177BMX150TCG requires a minimum input voltage of 1.6 V per absolute maximum ratings, but to sustain 1.5 V output at full 500 mA load, the input must exceed the dropout voltage. With 295 mV typical dropout at 500 mA (for VOUT = 1.5 V), the practical minimum input is 1.795 V. Below this, regulation fails and VOUT drops linearly with VIN. The datasheet specifies dropout voltage across multiple output voltages and load currents - confirming 295 mV typ. for 1.5 V output in the Electrical Characteristics table.
Is the NCV8177BMX150TCG qualified for automotive applications?
Yes, the NCV8177BMX150TCG carries the "NCV" prefix indicating automotive qualification per AEC-Q100 Grade 1 (−40°C to +125°C ambient), PPAP capability, and unique site/control change requirements. It undergoes stress testing for thermal cycling, humidity, and mechanical shock per automotive standards. The datasheet explicitly states AEC-Q100 qualification and lists automotive infotainment and camera systems as target applications - confirming its suitability for under-hood, dashboard, and exterior module deployments.
NCV8177BMX150TCG 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):
- 1.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.41V @ 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)
NCV8177BMX150TCG FAQ
1.How can I place an order for NCV8177BMX150TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8177BMX150TCG 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 NCV8177BMX150TCG reliable?
The price and inventory of NCV8177BMX150TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8177BMX150TCG is usually 5 days.
3.What payment methods are accepted for NCV8177BMX150TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8177BMX150TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8177BMX150TCG?
NCV8177BMX150TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8177BMX150TCG 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 NCV8177BMX150TCG?
For technical support, including NCV8177BMX150TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8177BMX150TCG requirements.
6.How does Aetrix verify that NCV8177BMX150TCG is sourced from the original manufacturer or authorized distributors?
All NCV8177BMX150TCG 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 NCV8177BMX150TCG meets industry standards.
7.What is the process for return or replacement of NCV8177BMX150TCG?
All NCV8177BMX150TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCV8177BMX150TCG, 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 NCV8177BMX150TCG part is unused and in its original packaging.
Return procedure for NCV8177BMX150TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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