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onsemi NCV8164AML280TCG
- Part No.:
- NCV8164AML280TCG
- Manufacturer:
- onsemi
- Package:
- 8-VDFN Exposed Pad
- Datasheet:
-
NCV8164AML280TCG.pdf
- Description:
- IC REG LINEAR 2.8V 300MA 8DFNW
- Quantity:
- Payment:
- Shipping:
Inventory:4,570
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Product details
Overview
NCV8164AML280TCG from onsemi is an automotive-grade 300 mA low-dropout linear regulator with fixed 2.8 V output, ultra-low noise (9 µVRMS), high PSRR (85 dB at 1 kHz), Power Good open-drain output, and active output discharge. It operates from 1.6 V to 5.5 V input and delivers ±2% output accuracy over load and temperature - designed for RF power amplifiers and analog sensor supplies in vehicle infotainment systems.
For engineers reviewing the NCV8164AML280TCG datasheet, pinout, applications, or equivalent options, key selection considerations include dropout voltage at 300 mA (115–185 mV), thermal performance in DFNW8 package (RJA = 50 °C/W), Power Good threshold hysteresis (5%), and compatibility with 1 µF ceramic input/output capacitors.
Technical Context
The NCV8164AML280TCG integrates a precision bandgap reference, error amplifier, and PMOS pass transistor optimized for low-noise operation and fast transient response. Its Power Good circuit monitors output voltage against 90–95% nominal thresholds and asserts an open-drain signal only when enabled and within regulation.
Thermal shutdown activates at 165 °C with 15 °C hysteresis, and the device supports active output discharge (260 Ω typical) during disable to rapidly deplete output capacitance. The EN pin features 0.7 V turn-on and 0.25 V turn-off thresholds, enabling clean sequencing with microcontrollers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8 V ±2% over −40°C to +150°C junction temperature and full load range - ensures stable biasing for 2.8 V analog ICs without external feedback. |
| Max Output Current | 300 mA continuous - supports multi-rail subsystems like camera modules or radar front-ends without derating at 85°C ambient. |
| Dropout Voltage | 115–185 mV at 300 mA - enables operation from 2.915 V input while maintaining 2.8 V output, critical for battery-powered automotive modules. |
| PSRR | 85 dB at 1 kHz - suppresses switching noise from adjacent DC-DC converters feeding RF transceivers or ADC references. |
| Output Noise | 9 µVRMS (10 Hz–100 kHz) - meets stringent noise requirements for high-resolution audio codecs and precision sensor signal chains. |
| Quiescent Current | 30 µA typical - extends battery life in always-on telematics control units during sleep mode. |
| Power Good Threshold | 95% rising / 90% falling of VOUT - provides reliable reset signaling to MCU with 5% hysteresis to prevent chatter during brown-out recovery. |
Pinout & Package
NCV8164AML280TCG uses the DFNW8 3 mm × 3 mm × 0.9 mm package (Case 507AD) with wettable flanks and exposed thermal pad. The 8-pin layout includes dedicated IN, OUT, GND, EN, PG, SNS, and two NC pins - optimized for thermal dissipation and PCB assembly reliability in automotive environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN | Main input supply connection - requires ≥1 µF X5R/X7R ceramic capacitor to ground for EMI suppression and line transient immunity. |
| 2 | GND | Common ground reference - must be connected directly to thermal pad and low-impedance ground plane to minimize noise coupling. |
| 3 | EN | Active-high enable input - logic high (>0.7 V) powers up regulator; logic low (<0.25 V) disables LDO and activates active discharge. |
| 4 | SNS | Sense feedback pin - tied directly to OUT on PCB for fixed-output variants to improve load regulation and remote sensing accuracy. |
| 5 | PG | Open-drain Power Good output - sinks up to 10 mA; requires external pull-up (10 kΩ–100 kΩ) to OUT or VIN for valid status reporting. |
| 6 | OUT | Regulated 2.8 V output - bypassed with ≥1 µF ceramic capacitor placed <2 mm from pin to ensure stability and low-noise performance. |
| 7–8 | N/C | No-connect pins - may be tied to ground plane to enhance thermal conduction and reduce EMI susceptibility. |
| EPAD | Exposed Pad | Thermal and electrical ground - must be soldered to solid copper pour for RJC(bot) = 7.9 °C/W and reliable operation at full load. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for −40°C to +125°C ambient operation with PPAP support - meets functional safety requirements for ASIL-B system power rails. |
| Ultra-low noise output | 9 µVRMS across 10 Hz–100 kHz - eliminates need for post-regulation filtering in sensitive RF receiver chains. |
| High PSRR at 100 kHz | 61 dB - maintains clean 2.8 V supply despite high-frequency ripple from buck converters operating near 1 MHz. |
| Active output discharge | 260 Ω typical resistance - discharges 10 µF output capacitance to <100 mV in <2.6 ms, preventing latch-up during power cycling. |
| Stable with 1 µF ceramics | No minimum ESR requirement - simplifies BOM by eliminating tantalum or polymer capacitors and reducing footprint cost. |
Applications
| Infotainment Audio Amplifier Supply | ADAS Camera Sensor Bias Rail |
|---|---|
Use Scenario: Powers Class AB/D audio amplifiers in head unit systems where switching noise from DC-DC converters must not modulate audio signals. IC Role / Device Role / Timing Role: Primary low-noise 2.8 V bias supply for op-amps and DAC output stages - replaces discrete RC filters and dual-stage LDOs. Use Value: 9 µVRMS noise and 85 dB PSRR eliminate audible hiss and beat frequencies, enabling >100 dB SNR in premium audio systems. |
Use Scenario: Supplies image sensor analog front-end (AFE) and CIS pixel bias in surround-view camera modules operating in engine bay environments. IC Role / Device Role / Timing Role: Stable 2.8 V rail for CCD/CMOS sensor analog core - synchronized with frame timing via EN-controlled power sequencing. Use Value: ±2% accuracy and 115 mV dropout ensure consistent exposure control across 9–16 V battery range, even at −40°C cold crank. |
| In-Vehicle Telematics Modem Core | Radar Transceiver Local LDO |
Use Scenario: Provides regulated 2.8 V to LTE/5G modem baseband processors requiring tight voltage tolerance and rapid wake-from-sleep response. IC Role / Device Role / Timing Role: Always-on LDO with EN-controlled enable/disable - coordinates with host MCU for low-power data burst transmission. Use Value: 30 µA quiescent current and 120 µs turn-on time enable sub-100 µA system sleep current and <150 µs modem activation latency. |
Use Scenario: Delivers clean 2.8 V to millimeter-wave radar transceiver RFICs where supply noise directly impacts phase noise and detection sensitivity. IC Role / Device Role / Timing Role: Local point-of-load regulator adjacent to RFIC - decouples from noisy main 3.3 V domain using high PSRR and low impedance path. Use Value: 85 dB PSRR at 1 kHz and 61 dB at 100 kHz suppresses switching artifacts from nearby power management ICs, preserving radar FMCW linearity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73328PDBVR | 300 mA, 2.8 V fixed, 225 mV dropout at 300 mA, 45 dB PSRR @ 100 kHz, no Power Good or active discharge | Consumer-grade; lacks AEC-Q100 qualification, thermal shutdown, and automotive temp range | Acceptable for non-automotive industrial prototypes but not for production vehicle ECUs due to missing automotive reliability features. |
| TPS78028QDDCRQ1 | 150 mA, 2.8 V fixed, 170 mV dropout at 150 mA, 70 dB PSRR @ 1 kHz, integrated Power Good, AEC-Q100 Grade 1 | Lower current rating limits use to single-rail sensor nodes; smaller 2 mm × 2 mm WSON package | Valid alternative for space-constrained modules with ≤150 mA load, but insufficient for multi-sensor or RF amplifier loads requiring full 300 mA. |
Compared with TLV73328PDBVR and TPS78028QDDCRQ1, the NCV8164AML280TCG uniquely combines 300 mA capability, automotive qualification, ultra-low noise, and active discharge in a thermally robust DFNW8 package - making it the only option meeting full ASIL-B power rail requirements for infotainment and ADAS subsystems.
Availability
NCV8164AML280TCG is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS camera modules, and telematics control units requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.
Supply support for NCV8164AML280TCG 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 NCV8164AML280TCG belongs to onsemi's NCV8164 automotive LDO family, engineered specifically for noise-sensitive RF and analog subsystems in vehicles - emphasizing ultra-low noise, high PSRR, and robust thermal performance under harsh automotive conditions.
FAQ
What is the maximum input voltage the NCV8164AML280TCG can tolerate?
The NCV8164AML280TCG supports an absolute maximum input voltage of 6 V per its Absolute Maximum Ratings table. However, for reliable operation across temperature and lifetime, the recommended operating input voltage range is 1.6 V to 5.5 V. Exceeding 5.5 V risks violating safe operating area limits and may trigger thermal shutdown or degrade long-term reliability - especially in automotive environments with load dump transients.
Does the NCV8164AML280TCG require an external pull-up resistor on the PG pin?
Yes, the NCV8164AML280TCG PG pin is an open-drain output and requires an external pull-up resistor (10 kΩ to 100 kΩ) to either VOUT or VIN, depending on sequencing needs. Connecting to VOUT ensures PG goes low when the LDO is disabled, providing accurate power-fail indication. Without the pull-up, PG remains floating and cannot drive a valid logic level to the host MCU.
Can the NCV8164AML280TCG be used with ceramic capacitors smaller than 1 µF?
No - the NCV8164AML280TCG is characterized and guaranteed stable only with ≥1 µF ceramic capacitors on both input and output. Using smaller values risks instability, excessive output ripple, or oscillation due to insufficient phase margin. The datasheet explicitly states "stable with a 1 µF small case size ceramic capacitor" and recommends X5R/X7R dielectrics for minimal capacitance drift over temperature.
How does the active output discharge function work in the NCV8164AML280TCG?
When the EN pin is pulled low (<0.25 V), the NCV8164AML280TCG activates an internal 260 Ω (typical) discharge path between OUT and GND. This rapidly depletes output capacitance - for example, discharging 10 µF from 2.8 V to <100 mV in under 2.6 ms. This prevents residual voltage from interfering with downstream logic or causing improper reset behavior during power cycling in automotive modules.
Is the NCV8164AML280TCG pin-compatible with other variants in the NCV8164 family?
Yes - all NCV8164 variants in the DFNW8 package (e.g., NCV8164AML330TCG, NCV8164AML180TCG) share identical pinout, footprint, and thermal pad layout. The only differences are output voltage and marking code. This allows drop-in replacement during design iteration or voltage optimization without PCB revision - provided the application tolerates the new output voltage and associated load regulation behavior.
NCV8164AML280TCG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-VDFN 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):
- 0.205V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 40 µA
- Current - Supply (Max):
- -
- PSRR:
- 83dB ~ 61dB (100Hz ~ 100kHz)
- Control Features:
- Enable, Power Good
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 8-DFNW (3x3)
NCV8164AML280TCG FAQ
1.How can I place an order for NCV8164AML280TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8164AML280TCG 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 NCV8164AML280TCG reliable?
The price and inventory of NCV8164AML280TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8164AML280TCG is usually 5 days.
3.What payment methods are accepted for NCV8164AML280TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8164AML280TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8164AML280TCG?
NCV8164AML280TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8164AML280TCG 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 NCV8164AML280TCG?
For technical support, including NCV8164AML280TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8164AML280TCG requirements.
6.How does Aetrix verify that NCV8164AML280TCG is sourced from the original manufacturer or authorized distributors?
All NCV8164AML280TCG 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 NCV8164AML280TCG meets industry standards.
7.What is the process for return or replacement of NCV8164AML280TCG?
All NCV8164AML280TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCV8164AML280TCG, 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 NCV8164AML280TCG part is unused and in its original packaging.
Return procedure for NCV8164AML280TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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