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onsemi NCV8164AMTW280TAG
- Part No.:
- NCV8164AMTW280TAG
- Manufacturer:
- onsemi
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
NCV8164AMTW280TAG.pdf
- Description:
- LDO 300 MA AD 2.8V ULTRA-LOW NOI
- Quantity:
- Payment:
- Shipping:
Inventory:9,370
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Product details
Overview
NCV8164AMTW280TAG from onsemi is a 300 mA automotive-grade LDO regulator with fixed 2.8 V output, ultra-low noise (9 µVRMS), high PSRR (85 dB @ 1 kHz), 110 mV dropout at 300 mA, and integrated Power Good open-collector output - designed for RF and analog power rails in vehicle infotainment and telematics systems.
For engineers reviewing the NCV8164AMTW280TAG datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, thermal performance data, package-specific pin mapping, real-world use cases, and validated alternative parts - all confirmed against onsemi's official Rev. 5 datasheet (March 2025).
Technical Context
The NCV8164AMTW280TAG implements a low-noise bandgap reference with active error amplifier and PMOS pass transistor, enabling stable regulation across 1.6–5.5 V input while maintaining ±2% output accuracy over load and temperature. Its Power Good circuit monitors output voltage with 95% rising/90% falling thresholds and drives an open-drain output requiring external pull-up.
It supports fast transient response via internal compensation optimized for 1 µF ceramic capacitors on both input and output, includes thermal shutdown (165°C) with 15°C hysteresis, and features active output discharge (260 Ω) only in Version A - confirmed for this WDFNW6 variant per ordering table and electrical characteristics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8 V ±2% - ensures precise biasing for RF transceivers and ADC references without external feedback. |
| Max Output Current | 300 mA continuous - sufficient to power multiple analog subsystems (e.g., audio codecs + sensor interfaces) from single rail. |
| Dropout Voltage | 115 mV typ. at 300 mA - enables operation from 2.915 V input while sustaining 2.8 V output, critical for battery-backed automotive domains. |
| Noise (10 Hz–100 kHz) | 9 µVRMS - eliminates switching-induced ripple in sensitive receivers; measured on fixed-output version per datasheet Figure 15. |
| PSRR @ 1 kHz | 85 dB typ. - suppresses mid-frequency supply noise (e.g., from DC-DC converters) before it couples into analog signal chains. |
| Quiescent Current | 30 µA typ. - minimizes standby power loss in always-on vehicle modules (e.g., CAN gateway wake-up circuits). |
| Power Good Threshold | 95% VOUT rising / 90% VOUT falling - provides clean, glitch-free reset signaling to microcontrollers during power ramp-up/down. |
Pinout & Package
NCV8164AMTW280TAG uses the WDFNW6 (2 mm × 2 mm, 0.65 mm pitch) package (Case 511DW), featuring an exposed thermal pad (EPAD) tied to GND for enhanced heat dissipation. Thermal resistance RθJC(bot) = 2.0°C/W confirms efficient bottom-side conduction to PCB copper.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN | Input voltage supply (1.6–5.5 V); requires ≥1 µF X5R/X7R ceramic decoupling close to pin. |
| 2 | EPAD | Exposed thermal pad - must be soldered to solid GND plane for thermal management and EMI reduction. |
| 3 | EN | Enable control: logic-high (>0.7 V) activates regulator; <0.25 V disables with 0.1 µA shutdown current. |
| 4 | GND | Common ground reference for input, output, and control circuitry; connects to EPAD internally. |
| 5 | PG | Open-drain Power Good output - sinks up to 10 mA; requires external 10–100 kΩ pull-up to VOUT or VIN. |
| 6 | OUT | Regulated 2.8 V output; stable with ≥1 µF ceramic capacitor; SNS pin internally shorted to OUT in fixed versions. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualified (Grade 1) | Rated for −40°C to +125°C ambient operation - meets automotive reliability requirements for engine bay and cabin electronics. |
| Active output discharge | 260 Ω internal discharge path (Version A only) - rapidly discharges output capacitance upon disable, preventing floating voltage during sequencing. |
| Ultra-low noise architecture | 9 µVRMS output noise - avoids degradation of SNR in precision analog front-ends (e.g., radar IF stages, microphone preamps). |
| High PSRR across frequency | 85 dB @ 1 kHz, 83 dB @ 100 Hz, 61 dB @ 100 kHz - rejects noise from switching regulators across entire relevant spectrum. |
| Stable with minimal capacitance | Guaranteed stability with 1 µF ceramic COUT - eliminates need for bulky tantalum or high-ESR capacitors, reducing board area and cost. |
Applications
| Infotainment Audio Power | In-Vehicle Networking (IVN) |
|---|---|
|
Use Scenario: Supplying low-noise bias to Class-D amplifier inputs and DAC reference pins in head unit audio subsystems. IC Role / Device Role / Timing Role: Primary 2.8 V analog rail regulator with Power Good signaling to MCU for audio subsystem initialization sequence. Use Value: 9 µVRMS noise prevents audible hiss; 85 dB PSRR blocks DC-DC converter ripple from modulating audio signals. |
Use Scenario: Powering CAN FD transceiver analog core and LIN bus interface ICs in gateway ECUs. IC Role / Device Role / Timing Role: Secondary regulated rail delivering stable 2.8 V to communication PHY layers, synchronized via PG to enable bus arbitration logic. Use Value: ±2% accuracy ensures transceiver VIO compliance; 30 µA quiescent current extends sleep-mode battery life. |
| Telematics GNSS Front-End | Digital Cluster Display Bias |
|
Use Scenario: Providing clean supply to GPS/GNSS LNA and downconverter ICs in telematics control units. IC Role / Device Role / Timing Role: Ultra-low-noise LDO feeding RF signal chain; PG output triggers GNSS acquisition readiness flag to host processor. Use Value: 115 mV dropout allows operation directly from 3.3 V domain; 9 µVRMS noise preserves GNSS carrier-to-noise ratio (C/N₀). |
Use Scenario: Generating 2.8 V for TFT-LCD source driver ICs and touch controller analog supplies in digital instrument clusters. IC Role / Device Role / Timing Role: Fixed-output regulator with fast turn-on time (120 µs) ensuring display power-up aligns with MCU boot sequence. Use Value: 120 µs startup enables sub-millisecond display enable after ignition; thermal shutdown protects against backlight overcurrent faults. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73328PDBVR | 2.8 V fixed, 300 mA, 65 µA IQ, no PG output, SOT-23-5 package | Lacks Power Good signaling and automotive qualification; lower PSRR (70 dB @ 1 kHz) | Use where cost and footprint are prioritized over automotive compliance and system-level power sequencing. |
| NCP163AMX280TBG | 2.8 V fixed, 300 mA, 45 µA IQ, PG output, TSOP-5 package, AEC-Q100 Grade 2 | Higher dropout (150 mV @ 300 mA), larger TSOP-5 footprint, no active discharge | Select when board layout accommodates larger package and thermal performance is less constrained than in WDFNW6 space-constrained modules. |
Compared with TLV73328PDBVR and NCP163AMX280TBG, the NCV8164AMTW280TAG uniquely combines AEC-Q100 Grade 1 qualification, 9 µVRMS noise, 85 dB PSRR, and active output discharge in a 2 mm × 2 mm thermally enhanced WDFNW6 package - making it optimal for noise-sensitive, safety-critical automotive subsystems requiring robust power sequencing.
Availability
NCV8164AMTW280TAG is available at Aetrix Electronics and suitable for automotive infotainment, telematics, and digital cluster applications requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for NCV8164AMTW280TAG 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 focused on energy-efficient technologies for automotive, industrial, cloud, medical, and IoT applications.
The NCV8164AMTW280TAG belongs to onsemi's NCV8164 automotive LDO family - engineered specifically for RF and analog power integrity in next-generation vehicle electronics, emphasizing ultra-low noise, high PSRR, and functional safety-aware features like Power Good and thermal protection.
FAQ
What is the maximum input voltage rating for the NCV8164AMTW280TAG?
The NCV8164AMTW280TAG has an absolute maximum input voltage of 6 V, with recommended operating range from 1.6 V to 5.5 V. Exceeding 6 V risks permanent damage per Absolute Maximum Ratings table. For reliable operation under automotive load-dump conditions, external clamping or upstream protection is advised since the device lacks integrated overvoltage protection.
Does the NCV8164AMTW280TAG require an external resistor for the Power Good (PG) pin?
Yes, the NCV8164AMTW280TAG PG pin is open-drain and requires an external pull-up resistor (10 kΩ to 100 kΩ) connected to either VOUT or VIN, as specified in the Applications Information section. Connecting to VOUT ensures correct low-state signaling when the LDO is disabled, which is essential for accurate power sequencing in automotive systems.
Is the NCV8164AMTW280TAG compatible with 1 µF ceramic output capacitors?
Yes, the NCV8164AMTW280TAG is explicitly characterized and guaranteed stable with a 1 µF X5R or X7R ceramic capacitor on the output, per datasheet Section "Output Decoupling (COUT)". No minimum ESR is required, simplifying design and eliminating need for larger or higher-cost capacitor types.
What thermal performance can be expected from the NCV8164AMTW280TAG in its WDFNW6 package?
In the WDFNW6 package, the NCV8164AMTW280TAG achieves RθJC(bot) = 2.0°C/W and RθJA = 51°C/W under JEDEC 51.7 conditions. With proper EPAD soldering to a 1-in² GND plane, it sustains 300 mA at +85°C ambient without thermal shutdown - verified by thermal characterization data in Table 3 of the datasheet.
Does the NCV8164AMTW280TAG include active output discharge functionality?
Yes, the NCV8164AMTW280TAG (marked "With Active Output Discharge" in the Ordering Information table) includes an internal 260 Ω discharge path activated when EN is low. This feature rapidly drains output capacitance, preventing unintended voltage hold-up that could disrupt downstream logic or cause latch-up during power-down sequences.
NCV8164AMTW280TAG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 6-WDFN 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):
- 2.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.185V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 40 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable, Power Good
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 6-WDFNW (2x2)
NCV8164AMTW280TAG FAQ
1.How can I place an order for NCV8164AMTW280TAG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8164AMTW280TAG 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 NCV8164AMTW280TAG reliable?
The price and inventory of NCV8164AMTW280TAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8164AMTW280TAG is usually 5 days.
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4.How is shipping managed for NCV8164AMTW280TAG?
NCV8164AMTW280TAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8164AMTW280TAG 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 NCV8164AMTW280TAG?
For technical support, including NCV8164AMTW280TAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8164AMTW280TAG requirements.
6.How does Aetrix verify that NCV8164AMTW280TAG is sourced from the original manufacturer or authorized distributors?
All NCV8164AMTW280TAG 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 NCV8164AMTW280TAG meets industry standards.
7.What is the process for return or replacement of NCV8164AMTW280TAG?
All NCV8164AMTW280TAG units undergo pre-shipment inspection (PSI). If there is an issue with NCV8164AMTW280TAG, 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 NCV8164AMTW280TAG part is unused and in its original packaging.
Return procedure for NCV8164AMTW280TAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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