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onsemi NCV8164AML250TCG
- Part No.:
- NCV8164AML250TCG
- Manufacturer:
- onsemi
- Package:
- 8-VDFN Exposed Pad
- Datasheet:
-
NCV8164AML250TCG.pdf
- Description:
- IC REG LINEAR 2.5V 300MA 8DFNW
- Quantity:
- Payment:
- Shipping:
Inventory:2,985
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Product details
Overview
NCV8164AML250TCG from onsemi is a 300 mA automotive-grade LDO regulator with fixed 2.5 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. It serves as a precision voltage source for RF and analog circuits in vehicle infotainment and telematics systems.
For engineers reviewing the NCV8164AML250TCG datasheet, pinout, applications, or equivalent options, key selection considerations include its AEC-Q100 qualification, 1.6–5.5 V input range, ±2% output accuracy over load/temperature, stable operation with 1 µF ceramic capacitors, and thermal shutdown at 165°C.
Technical Context
The NCV8164AML250TCG implements a PMOS pass transistor architecture enabling low dropout and ultra-low quiescent current (30 µA typ.). Its internal reference and error amplifier deliver tight regulation across −40°C to +150°C junction temperature, with active discharge functionality enabled in this variant.
Power Good logic monitors output voltage against 95% (rising) and 90% (falling) thresholds, asserting an open-drain signal compatible with 3.3 V or 5 V pull-up rails. The EN pin features 0.7 V enable threshold and 0.25 V disable threshold, supporting clean MCU-controlled sequencing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5 V ±2% over load, line, and temperature - ensures stable bias for ADC references and RF synthesizers. |
| Max Output Current | 300 mA continuous - supports multi-rail subsystems like audio codecs or sensor signal chains without external boost. |
| Dropout Voltage | 110 mV at 300 mA (3.3 V variant data applies; 2.5 V variant dropout ≤125 mV per datasheet Table 4) - enables operation from weak or aged 3.3 V supplies. |
| Noise Performance | 9 µVRMS (10 Hz–100 kHz) - preserves SNR in sensitive analog front-ends such as microphone preamps or GPS receivers. |
| PSRR | 85 dB @ 1 kHz - suppresses switching noise from adjacent DC-DC converters feeding shared 5 V rails. |
| Quiescent Current | 30 µA typical - extends battery runtime in always-on vehicle modules like CAN gateways or body control units. |
| Operating Input Range | 1.6 V to 5.5 V - accommodates wide-input automotive transients and dual-supply architectures. |
Pinout & Package
NCV8164AML250TCG uses the DFNW8 3 mm × 3 mm × 0.9 mm package (Case 507AD), featuring an exposed thermal pad for enhanced power dissipation. Pin numbering follows standard DFN orientation with Pin 1 at top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN | Input voltage supply - requires ≥1 µF X5R/X7R ceramic decoupling close to pin for transient immunity. |
| 2 | GND | Common ground - must connect directly to PCB ground plane; ties to exposed pad for thermal conduction. |
| 3 | EN | Enable control - logic-high (>0.7 V) activates regulator; logic-low (<0.25 V) disables output and PG. |
| 4 | PG | Power Good open collector - sinks up to 10 mA; requires external 10–100 kΩ pull-up to OUT or VIN for sequencing. |
| 5 | OUT | Regulated 2.5 V output - bypassed with ≥1 µF ceramic capacitor; SNS pin internally tied to OUT in fixed versions. |
| 6–7 | N/C | No connect - may be grounded for improved thermal performance but carries no electrical function. |
| 8 | EPAD | Exposed thermal pad - must be soldered to solid copper ground plane for RθJC(bot) = 7.9°C/W thermal path. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for −40°C to +125°C ambient operation - meets automotive ECU reliability requirements without derating. |
| Active output discharge | 260 Ω typical discharge resistance - rapidly drains output capacitance during shutdown to prevent hold-up or latch-up in downstream logic. |
| Stable with 1 µF ceramic capacitors | No minimum ESR requirement - eliminates need for costly tantalum or polymer caps; reduces BOM count and board space. |
| Ultra-low noise + high PSRR | 9 µVRMS noise + 85 dB PSRR @ 1 kHz - enables direct powering of PLLs, VCOs, and high-resolution SAR ADCs. |
| Thermal shutdown with hysteresis | 165°C trip point + 15°C hysteresis - prevents thermal cycling damage during sustained overload or poor heatsinking. |
Applications
| Infotainment Audio Subsystem | In-Vehicle Networking Gateway |
|---|---|
|
Use Scenario: Powering DACs, headphone amplifiers, and MEMS microphone bias circuits in head unit audio processors. IC Role / Device Role / Timing Role: Primary low-noise analog supply rail generator with precise 2.5 V reference stability. Use Value: 9 µVRMS noise prevents audible hiss; ±2% accuracy maintains consistent dynamic range across temperature. |
Use Scenario: Supplying isolated CAN FD transceivers and Ethernet PHYs in domain controller gateways. IC Role / Device Role / Timing Role: Clean auxiliary rail for communication ICs requiring low ripple and fast transient response. Use Value: 85 dB PSRR rejects noise from 1 MHz+ SMPS switching frequencies; 110 mV dropout sustains operation during cold-crank events. |
| Telematics Control Unit (TCU) | Digital Cluster Display Interface |
|
Use Scenario: Regulating power to GNSS RF front-end, cellular modem baseband, and secure boot microcontrollers. IC Role / Device Role / Timing Role: Safety-critical voltage supervisor with Power Good signaling for firmware integrity checks. Use Value: PG output asserts only when VOUT reaches 95% of 2.5 V - enables deterministic boot sequencing and fault detection. |
Use Scenario: Delivering stable 2.5 V to LVDS serializer/deserializer ICs and display timing controllers. IC Role / Device Role / Timing Role: Low-jitter analog supply for pixel clock generation and gamma correction circuitry. Use Value: Ultra-low noise prevents visible banding or flicker; 30 µA quiescent current minimizes standby drain in ignition-off mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS78025QDRVRQ1 | 200 mA max output, 1.4 µA quiescent current, no Power Good output | Lacks PG signaling and lower current headroom - unsuitable for multi-load telematics nodes | Select when ultra-low IQ dominates over PG functionality and 300 mA is unnecessary |
| MAX1725EUT25+T | 200 mA, 3.5 µVRMS noise, no AEC-Q100 qualification, no active discharge | Not automotive-qualified; lacks thermal protection hysteresis and discharge path for safety-critical shutdown | Acceptable for industrial non-automotive use where cost is prioritized over automotive compliance |
Compared with TPS78025QDRVRQ1 and MAX1725EUT25+T, the NCV8164AML250TCG uniquely combines automotive qualification, 300 mA drive, integrated Power Good, and active discharge - making it the only option meeting full ASIL-B support requirements for infotainment and telematics power domains.
Availability
NCV8164AML250TCG is available at Aetrix Electronics and suitable for automotive infotainment systems, in-vehicle networking gateways, and telematics control units requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.
Supply support for NCV8164AML250TCG 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 focused on energy-efficient technologies for automotive, industrial, cloud, and IoT applications.
The NCV8164AML250TCG belongs to onsemi's NCV8164 automotive LDO family, engineered specifically for noise-sensitive RF/analog subsystems in vehicles - emphasizing ultra-low noise, high PSRR, and robust power sequencing capabilities.
FAQ
What is the maximum input voltage rating for the NCV8164AML250TCG?
The NCV8164AML250TCG 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; operation above 5.5 V is not characterized and violates safe operating area limits.
Does the NCV8164AML250TCG require an external resistor for Power Good pull-up?
Yes, the NCV8164AML250TCG PG pin is open-drain and requires an external pull-up resistor (10 kΩ to 100 kΩ) to either VOUT or VIN. Connecting to VOUT ensures correct low-state assertion during shutdown; using VIN is acceptable if VIN remains valid during LDO disable.
Is the NCV8164AML250TCG compatible with 1 µF ceramic output capacitors?
Yes, the NCV8164AML250TCG is explicitly designed for stability with ≥1 µF X5R or X7R ceramic capacitors and imposes no minimum ESR requirement. This eliminates need for bulkier electrolytic or tantalum capacitors and simplifies layout near the IC.
What thermal performance can be expected from the NCV8164AML250TCG in DFNW8 package?
In the DFNW8 package, the NCV8164AML250TCG achieves RθJC(bot) = 7.9°C/W and RθJA = 50°C/W when mounted on a 2-layer PCB with 1-in² 2-oz copper pour under the EPAD. Full derating requires limiting junction temperature to ≤125°C for continuous 300 mA operation.
How does the active discharge feature function in the NCV8164AML250TCG?
When EN is pulled low, the NCV8164AML250TCG activates an internal 260 Ω discharge path between OUT and GND, draining output capacitance within milliseconds. This prevents residual voltage from interfering with downstream logic reset sequences or causing unintended wake-up in low-power states.
NCV8164AML250TCG 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):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.22V @ 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)
NCV8164AML250TCG FAQ
1.How can I place an order for NCV8164AML250TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8164AML250TCG 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 NCV8164AML250TCG reliable?
The price and inventory of NCV8164AML250TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8164AML250TCG is usually 5 days.
3.What payment methods are accepted for NCV8164AML250TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8164AML250TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8164AML250TCG?
NCV8164AML250TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8164AML250TCG 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 NCV8164AML250TCG?
For technical support, including NCV8164AML250TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8164AML250TCG requirements.
6.How does Aetrix verify that NCV8164AML250TCG is sourced from the original manufacturer or authorized distributors?
All NCV8164AML250TCG 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 NCV8164AML250TCG meets industry standards.
7.What is the process for return or replacement of NCV8164AML250TCG?
All NCV8164AML250TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCV8164AML250TCG, 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 NCV8164AML250TCG part is unused and in its original packaging.
Return procedure for NCV8164AML250TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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