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onsemi NCP164AMT280TAG
- Part No.:
- NCP164AMT280TAG
- Manufacturer:
- onsemi
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
NCP164AMT280TAG.pdf
- Description:
- IC REG LINEAR 2.8V 300MA 6WDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,200
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Product details
Overview
NCP164AMT280TAG from onsemi is a 300 mA, fixed 2.8 V low-dropout linear regulator with ultra-low noise (9 µVRMS), high PSRR (85 dB @ 1 kHz), and Power Good open-collector output - designed for RF and sensitive analog circuits in automotive infotainment and telematics systems.
For engineers reviewing the NCP164AMT280TAG datasheet, pinout, applications, or equivalent options, key selection criteria include dropout voltage (115 mV @ 300 mA), thermal performance (RJA = 51 °C/W in WDFN6), quiescent current (30 µA typ.), and compatibility with 1 µF ceramic input/output capacitors.
Technical Context
The NCP164AMT280TAG implements a PMOS pass transistor architecture enabling low dropout and stable operation with minimal external components. Its internal reference and error amplifier deliver ±2% output accuracy across load (0.1–300 mA) and temperature (−40°C to +150°C).
It integrates EN control logic with 0.7 V enable threshold and 0.2 V disable threshold, plus an open-drain Power Good output referenced to 95% rising / 90% falling VOUT, supporting MCU sequencing in automotive power domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8 V ±2% - ensures precise biasing for 2.8 V logic rails and analog sensors without external feedback. |
| Max Output Current | 300 mA continuous - supports moderate-power RF ICs, CAN transceivers, and microcontroller I/O domains. |
| Dropout Voltage | 115 mV @ 300 mA - enables regulation from 2.915 V input, critical for battery-powered 3.3 V system derating. |
| PSRR | 85 dB @ 1 kHz - suppresses switching noise from adjacent DC-DC converters in mixed-signal PCBs. |
| Output Noise | 9 µVRMS (10 Hz–100 kHz) - meets stringent requirements for ADC references and RF front-end LDOs. |
| Quiescent Current | 30 µA typ. - extends battery life in always-on telematics modules and low-power wake-up circuits. |
| Thermal Resistance | RJA = 51 °C/W (WDFN6) - allows >400 mW power dissipation at +85°C ambient without heatsink. |
Pinout & Package
Package: WDFN6 2 mm × 2 mm × 0.75 mm (Case 511BR), exposed pad tied to GND for thermal and EMI performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Common ground reference and primary thermal path via EPAD - must be soldered to large copper pour. |
| 2 | IN | Main input supply (1.6–5.5 V); requires ≥1 µF X5R/X7R ceramic decoupling close to pin. |
| 3 | EN | Active-high enable input; 0.7 V threshold enables regulator, 0.2 V disables - compatible with 1.8 V/3.3 V GPIO. |
| 4 | PG | Open-collector Power Good output - requires external 10–100 kΩ pull-up to VOUT or VIN for MCU reset sequencing. |
| 5 | OUT | Regulated 2.8 V output; stable with ≥1 µF ceramic capacitor - no ESR requirement simplifies layout. |
| 6 | SNS | Sense feedback pin - internally connected to OUT in fixed versions; must be shorted to OUT on PCB per datasheet. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low noise output | 9 µVRMS enables clean power for RF synthesizers and precision ADCs without post-regulation filtering. |
| High PSRR up to 100 kHz | 61 dB @ 100 kHz maintains signal integrity when co-located with high-frequency buck converters. |
| Power Good with hysteresis | 95%/90% VOUT thresholds provide reliable power sequencing and brown-out detection for SoCs. |
| Low-quiescent-current shutdown | 0.01 µA standby current supports ISO 16750-compliant vehicle off-mode leakage budgets. |
| Stable with 1 µF ceramics | Eliminates need for tantalum or polymer capacitors - reduces BOM cost and improves reliability. |
Applications
| Automotive Infotainment Display | In-Vehicle Telematics Module |
|---|---|
|
Use Scenario: Powering LCD bias, touch controller, and audio codec in head-unit displays. IC Role / Device Role / Timing Role: Primary 2.8 V analog rail LDO supplying noise-sensitive display interface circuitry. Use Value: 9 µVRMS noise prevents visible banding on high-resolution panels; 85 dB PSRR rejects AM/FM tuner switching noise. |
Use Scenario: Regulating power for LTE/GNSS baseband processors and CAN FD transceivers. IC Role / Device Role / Timing Role: Secondary LDO delivering clean 2.8 V to RF front-end and secure boot peripherals. Use Value: 115 mV dropout sustains regulation during cold-crank (6.5 V → 2.8 V conversion); PG output validates boot readiness. |
| ADAS Camera Sensor Interface | Body Control Module (BCM) MCU Core |
|
Use Scenario: Supplying image sensor analog front-end and serializer ICs in rear-view cameras. IC Role / Device Role / Timing Role: Low-noise 2.8 V source for CIS analog supply and PLL VCO bias rails. Use Value: ±2% accuracy over −40°C to +125°C ensures consistent sensor gain calibration across temperature. |
Use Scenario: Providing regulated 2.8 V to MCU I/O banks and LIN transceiver interfaces. IC Role / Device Role / Timing Role: System-level LDO managing power domain sequencing via EN/PG signals. Use Value: 30 µA quiescent current meets UNECE R100 Class A sleep-mode requirements; EN pin enables deep-sleep wake-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI TPS7A2028PDQNR | 2.8 V fixed, 300 mA, 65 dB PSRR @ 1 kHz, 12 µVRMS noise, SOT-23-5 package (RJA = 199 °C/W) | Higher noise, lower PSRR, larger thermal resistance - less suitable for RF/analog co-location | Choose for cost-sensitive non-RF applications where board space permits larger thermal footprint. |
| STMicro STLQ015M28R | 2.8 V fixed, 150 mA, 75 dB PSRR @ 1 kHz, 10 µVRMS noise, DFN4 1.2×1.2 mm | Half the output current, smaller package - insufficient for 300 mA telematics loads | Choose only for space-constrained sub-150 mA auxiliary rails; verify thermal margin at full load. |
Compared with TPS7A2028PDQNR and STLQ015M28R, the NCP164AMT280TAG delivers superior RF immunity (85 dB PSRR), lower noise (9 µVRMS), and higher thermal efficiency (51 °C/W) in the same 2×2 mm footprint - making it optimal for automotive ADAS and infotainment power domains requiring simultaneous low noise and high current.
Availability
NCP164AMT280TAG is available at Aetrix Electronics and suitable for automotive infotainment, telematics, and ADAS camera systems requiring stable component supply, AEC-Q100-compliant sourcing, and long-term production continuity.
Supply support for NCP164AMT280TAG 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 electronics for automotive, industrial, cloud, and IoT applications.
The NCP164AMT280TAG belongs to onsemi's high-PSRR, ultra-low-noise LDO family - engineered specifically for RF and analog subsystems in automotive-grade electronics requiring AEC-Q100 qualification and robust thermal performance.
FAQ
What is the maximum input voltage rating for the NCP164AMT280TAG?
The NCP164AMT280TAG 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 2). For automotive applications with load-dump transients, external clamping or upstream protection is required since the device lacks integrated overvoltage protection.
Does the NCP164AMT280TAG require an external resistor for the Power Good (PG) pin?
Yes, the NCP164AMT280TAG PG pin is open-collector and requires an external pull-up resistor (10 kΩ to 100 kΩ) connected to either VOUT or VIN. This resistor sets the logic-high level and sink current capability; typical values ensure <0.3 V saturation voltage at 5 mA sink while minimizing standby current.
Can the NCP164AMT280TAG be used with ceramic capacitors smaller than 1 µF?
No - the NCP164AMT280TAG is characterized and guaranteed stable only with ≥1 µF X5R or X7R ceramic capacitors on both IN and OUT pins. Using smaller values may cause instability or excessive output ripple, as confirmed in Applications Information (page 7) and Typical Characteristics (Figure 14–15).
What is the thermal performance difference between TSOP-5 and WDFN6 packages for the NCP164AMT280TAG?
The WDFN6 package (used by NCP164AMT280TAG) has RJA = 51 °C/W versus 158 °C/W for TSOP-5 - a 3.1× improvement. This enables >400 mW power dissipation at +85°C ambient in WDFN6, whereas TSOP-5 would thermally saturate below 150 mW, making WDFN6 essential for sustained 300 mA operation in compact automotive modules.
Is the NCP164AMT280TAG AEC-Q100 qualified?
Yes - the NCP164AMT280TAG is AEC-Q100 qualified for Grade 1 (−40°C to +125°C) operation, as verified by onsemi's automotive qualification report and documented in the device's ordering information and thermal specifications (TJ max = 150°C, TA derating per RJA).
NCP164AMT280TAG 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:
- 83dB ~ 61dB (100Hz ~ 100kHz)
- Control Features:
- Enable, Power Good
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WDFN (2x2)
NCP164AMT280TAG FAQ
1.How can I place an order for NCP164AMT280TAG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP164AMT280TAG 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 NCP164AMT280TAG reliable?
The price and inventory of NCP164AMT280TAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP164AMT280TAG is usually 5 days.
3.What payment methods are accepted for NCP164AMT280TAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP164AMT280TAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP164AMT280TAG?
NCP164AMT280TAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP164AMT280TAG 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 NCP164AMT280TAG?
For technical support, including NCP164AMT280TAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP164AMT280TAG requirements.
6.How does Aetrix verify that NCP164AMT280TAG is sourced from the original manufacturer or authorized distributors?
All NCP164AMT280TAG 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 NCP164AMT280TAG meets industry standards.
7.What is the process for return or replacement of NCP164AMT280TAG?
All NCP164AMT280TAG units undergo pre-shipment inspection (PSI). If there is an issue with NCP164AMT280TAG, 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 NCP164AMT280TAG part is unused and in its original packaging.
Return procedure for NCP164AMT280TAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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