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onsemi NCV8170AXV310T2G
- Part No.:
- NCV8170AXV310T2G
- Manufacturer:
- onsemi
- Package:
- SOT-563, SOT-666
- Datasheet:
-
NCV8170AXV310T2G.pdf
- Description:
- IC REG LINEAR 3.1V 150MA SOT563
- Quantity:
- Payment:
- Shipping:
Inventory:3,144
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Product details
Overview
NCV8170AXV310T2G from onsemi is an automotive-grade CMOS low-dropout (LDO) regulator delivering 150 mA output with ultra-low quiescent current (typ. 500 nA), 3.1 V fixed output voltage, and dropout voltage of 170 mV at 150 mA. It operates from 2.2 V to 5.5 V input and features active discharge, thermal shutdown, and over-current protection - designed for always-on battery-powered modules in ADAS camera systems.
For engineers reviewing the NCV8170AXV310T2G datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q100 qualification, 1% output voltage accuracy over −40°C to +125°C, stable operation with 1 µF ceramic output capacitors, and EN-controlled active discharge capability.
Technical Context
The NCV8170AXV310T2G implements a CMOS-based LDO architecture with dynamic quiescent current adjustment to maintain 500 nA IQ at no load while enabling fast transient response during load steps. Its internal pass element is optimized for low dropout and high PSRR (up to 63 dB at 1 kHz, 10 mA load).
It integrates an enable-controlled active discharge path (RLOW ≈ 100 Ω) that pulls VOUT to GND when EN is low - a critical feature for system-level power sequencing in automotive infotainment and telematics. Thermal shutdown triggers at 175°C with 25°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.1 V ±1% over −40°C to +125°C - ensures stable MCU core or sensor bias under automotive temperature extremes. |
| Max Output Current | 150 mA continuous - supports low-power microcontrollers, image sensors, and CAN transceivers in compact modules. |
| Quiescent Current | Typ. 500 nA at IOUT = 0 mA - enables >10-year battery life in keyless entry or tire pressure monitoring systems. |
| Dropout Voltage | 170 mV typ. at 150 mA - allows regulation from 3.27 V input down to 3.1 V output, maximizing usable battery range. |
| PSRR | 63 dB at 1 kHz (10 mA load) - suppresses switching noise from adjacent DC-DC converters in mixed-power-rail designs. |
| Stability | Stable with ≥1 µF X5R/X7R ceramic output capacitor - eliminates need for tantalum or electrolytic, reducing BOM cost and footprint. |
| Enable Threshold | VENH = 1.2 V min., VENL = 0.4 V max. - compatible with 1.8 V/3.3 V GPIOs and supports clean power sequencing. |
Pinout & Package
NCV8170AXV310T2G is packaged in SOT−563 (Case 463A), a 6-pin, 1.6 mm × 1.6 mm × 0.55 mm surface-mount package with exposed pad thermally connected to GND. Pin 1 is IN, Pin 2 is GND, Pin 3 is OUT, Pin 4 is NC, Pin 5 is GND, Pin 6 is EN.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input Power Supply | Accepts 2.2–5.5 V input; requires ≥1 µF ceramic decoupling to ground for stability and transient immunity. |
| 2 (GND) | Power Ground Reference | Primary ground return for input/output paths; connects internally to EPAD for thermal dissipation. |
| 3 (OUT) | Regulated Output | Delivers fixed 3.1 V ±1%; must be decoupled with ≥1 µF ceramic capacitor placed adjacent to pin. |
| 4 (NC) | No Connect | Not bonded; must remain unconnected and unrouted to avoid parasitic coupling or ESD risk. |
| 5 (GND) | Secondary Ground Terminal | Provides additional low-inductance ground path; ties to same net as Pin 2 and EPAD. |
| 6 (EN) | Enable Control Input | Active-high logic input; drives internal pass FET and activates 100 Ω active discharge when pulled low. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low Quiescent Current | 500 nA typical enables multi-year operation from coin-cell or small Li-ion batteries in always-on modules. |
| Active Output Discharge | 100 Ω internal discharge path rapidly collapses VOUT when disabled - prevents floating rails and ensures deterministic reset timing. |
| AEC-Q100 Qualified | Grade 1 (−40°C to +125°C) qualification confirms reliability for under-hood and cabin automotive applications. |
| Thermal Shutdown with Hysteresis | 175°C trip with 25°C hysteresis prevents thermal oscillation and protects against sustained overload conditions. |
| High PSRR at Low Frequencies | 63 dB at 1 kHz improves immunity to ripple from upstream buck converters powering infotainment subsystems. |
Applications
| Telematics Control Unit (TCU) | ADAS Camera Module |
|---|---|
Use Scenario: Always-on GPS/GNSS receiver and cellular modem in vehicle TCU requiring continuous power during sleep mode. IC Role / Device Role / Timing Role: Primary 3.1 V supply for GNSS baseband processor and LTE modem RF section. Use Value: 500 nA quiescent current extends backup battery life beyond 10 years; active discharge ensures clean power-down during firmware updates. | Use Scenario: Front-facing camera module powering image sensor and ISP in lane-departure warning system. IC Role / Device Role / Timing Role: Clean, low-noise 3.1 V rail for analog front-end and pixel ADC circuitry. Use Value: 85 µVrms output noise and 63 dB PSRR prevent clock jitter and SNR degradation in high-resolution imaging. |
| Automotive Keyless Entry | Navigation System Display |
Use Scenario: Ultra-low-power remote key fob with motion-triggered wake-up and encrypted RF transmission. IC Role / Device Role / Timing Role: Main 3.1 V supply for secure MCU and sub-GHz transceiver during standby and burst transmit. Use Value: Sub-µA IQ enables >8-year shelf life on CR2032; EN pin synchronizes power with wake-up interrupt for zero-latency response. | Use Scenario: In-dash navigation unit with touch controller, display driver, and audio codec sharing a 3.1 V domain. IC Role / Device Role / Timing Role: Secondary regulated rail isolated from noisy main 5 V supply to reduce display artifacts. Use Value: Stable 1% output accuracy across temperature ensures consistent brightness and color calibration; 170 mV dropout preserves headroom during cold-cranking dips. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73331PDBVR | 300 mA output, 350 nA IQ, no active discharge, non-automotive grade | Lacks AEC-Q100 qualification and active discharge - unsuitable for safety-critical or sequenced automotive systems | Select only for cost-sensitive industrial or consumer designs where automotive qualification is not required. |
| TPS78031QDRVRQ1 | 150 mA, 500 nA IQ, 3.1 V fixed, AEC-Q100 Grade 1, but no active discharge | Matches NCV8170AXV310T2G in accuracy, IQ, and qualification, but lacks active discharge path | Choose when system-level discharge is handled externally or unnecessary; verify sequencing requirements. |
Compared with TLV73331PDBVR and TPS78031QDRVRQ1, the NCV8170AXV310T2G uniquely combines AEC-Q100 Grade 1 qualification, 3.1 V precision regulation, ultra-low IQ, and integrated active discharge - making it the only option for space-constrained, safety-aware automotive modules requiring deterministic power-down behavior.
Availability
NCV8170AXV310T2G is available at Aetrix Electronics and suitable for automotive telematics, ADAS camera modules, keyless entry systems, and navigation displays requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for NCV8170AXV310T2G 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 innovation for automotive, industrial, cloud, and IoT applications.
The NCV8170 series belongs to onsemi's automotive power management portfolio, engineered specifically for ultra-low-power, always-on functions in safety-critical vehicle subsystems - emphasizing AEC-Q100 compliance, thermal robustness, and precise voltage regulation.
FAQ
What is the output voltage tolerance of the NCV8170AXV310T2G over temperature?
The NCV8170AXV310T2G delivers 3.1 V output with ±1% accuracy over the full automotive temperature range of −40°C to +125°C, as specified in the Electrical Characteristics table for the 3.1 V version. This tight tolerance ensures reliable operation of voltage-sensitive components like image sensors and secure MCUs without external trimming.
Does the NCV8170AXV310T2G require an external resistor network to set output voltage?
No, the NCV8170AXV310T2G is a fixed-output LDO with factory-trimmed 3.1 V regulation. It does not use external feedback resistors - simplifying layout, reducing BOM count, and eliminating drift sources associated with resistor tolerances and temperature coefficients.
How does the active discharge function operate in the NCV8170AXV310T2G?
When the EN pin is driven below 0.4 V, the NCV8170AXV310T2G activates an internal ~100 Ω discharge path between OUT and GND, collapsing the output voltage rapidly. This prevents residual charge from interfering with downstream logic states or causing unintended wake-up events during system power-down sequences.
Can the NCV8170AXV310T2G be used with ceramic output capacitors smaller than 1 µF?
No - the NCV8170AXV310T2G is characterized and guaranteed stable only with ≥1 µF X5R or X7R ceramic output capacitors. Using smaller values risks instability, overshoot, or oscillation during load transients, especially in automotive environments with wide temperature swings.
Is the NCV8170AXV310T2G pin-compatible with other variants in the NCV8170 family?
Yes - all NCV8170 variants, including NCV8170AXV310T2G, share identical SOT−563 (Case 463A) pinout and footprint. This allows voltage-version flexibility (1.2 V to 3.6 V) without PCB redesign, provided thermal and layout constraints for the specific output current and dropout are met.
NCV8170AXV310T2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SOT-563, SOT-666
- 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):
- 3.1V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 0.9 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-563
NCV8170AXV310T2G FAQ
1.How can I place an order for NCV8170AXV310T2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8170AXV310T2G 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 NCV8170AXV310T2G reliable?
The price and inventory of NCV8170AXV310T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8170AXV310T2G is usually 5 days.
3.What payment methods are accepted for NCV8170AXV310T2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8170AXV310T2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8170AXV310T2G?
NCV8170AXV310T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8170AXV310T2G 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 NCV8170AXV310T2G?
For technical support, including NCV8170AXV310T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8170AXV310T2G requirements.
6.How does Aetrix verify that NCV8170AXV310T2G is sourced from the original manufacturer or authorized distributors?
All NCV8170AXV310T2G 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 NCV8170AXV310T2G meets industry standards.
7.What is the process for return or replacement of NCV8170AXV310T2G?
All NCV8170AXV310T2G units undergo pre-shipment inspection (PSI). If there is an issue with NCV8170AXV310T2G, 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 NCV8170AXV310T2G part is unused and in its original packaging.
Return procedure for NCV8170AXV310T2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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