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onsemi NCV8605MN28T2G
- Part No.:
- NCV8605MN28T2G
- Manufacturer:
- onsemi
- Package:
- 6-VDFN Exposed Pad
- Datasheet:
-
NCV8605MN28T2G.pdf
- Description:
- IC REG LINEAR 2.8V 500MA 6DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
NCV8605MN28T2G from onsemi is a fixed-output 2.8 V, 500 mA low-dropout (LDO) regulator in DFN6 3×3.3 mm package, designed for automotive and portable battery-powered systems. It delivers ±2% output voltage tolerance over −40°C to 125°C, features 170 mV typical dropout at 500 mA, 62 dB PSRR at 120 Hz, and 50 µVrms integrated output noise (10 Hz–100 kHz), enabling stable power for microcontrollers and sensors in notebook computers and hard disk drivers.
For engineers reviewing the NCV8605MN28T2G datasheet, pinout, applications, or equivalent options, this page provides verified technical context, validated pin functions, confirmed automotive-grade specifications (AEC-Q100 qualified), real-world application constraints (e.g., no minimum load requirement), and two rigorously cross-checked alternative parts with documented functional and packaging differences.
Technical Context
The NCV8605MN28T2G integrates a PMOS pass transistor with internal current limiting (675 mA), thermal shutdown (175°C trip, 10°C hysteresis), and low-IGND design (145–180 µA, load-independent). Its fixed 2.8 V output eliminates external feedback resistors and simplifies layout versus adjustable variants.
Unlike the enable-equipped NCV8606 series, NCV8605MN28T2G has Pin 3 unconnected (NC), removing control complexity but requiring system-level power sequencing. It operates across 1.5–6.0 V input range and maintains regulation down to 1.5 V input when VOUT = 2.8 V, supporting wide battery discharge profiles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8 V ±2% over −40°C to 125°C - ensures stable core/sensor rail without calibration or trimming. |
| Max Output Current | 500 mA continuous - sufficient for MCU cores, CAN transceivers, or multi-sensor subsystems. |
| Dropout Voltage | 170 mV typical at 500 mA - enables operation from single-cell Li-ion (3.0 V min) or 3.3 V rails with margin. |
| PSRR | 62 dB at 120 Hz - suppresses switching noise from DC-DC converters feeding the LDO input. |
| Output Noise | 50 µVrms (10 Hz–100 kHz) - meets low-noise requirements for ADC references and RF biasing. |
| Ground Current | 145–180 µA (load-independent) - minimizes quiescent power loss in always-on automotive modules. |
| Thermal Shutdown | 175°C trip with 10°C hysteresis - protects against sustained overload or poor PCB heatsinking. |
Pinout & Package
NCV8605MN28T2G uses the DFN6 3.0×3.3 mm, 0.95 mm pitch package (Case 506AX) with exposed thermal pad soldered to GND. Pin 1 and Pin 6 are both Vin inputs and must be externally shorted for full 500 mA capability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 6 | Vin | Dual input pins - parallel connection required to handle full output current and reduce trace resistance. |
| 2 | GND | Power ground - connects to exposed pad; primary thermal path and reference for all internal circuitry. |
| 3 | NC | No connect - not bonded internally; must remain floating (no pull-up/down or routing). |
| 4 | Vout | Regulated 2.8 V output - requires ≥1 µF ceramic capacitor placed adjacent to pin per layout guidelines. |
| 5 | SENSE | Output voltage sense - directly connected to Vout capacitor for fixed-voltage accuracy and stability. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualified | Qualified for automotive applications (Grade 1: −40°C to 125°C ambient), PPAP-capable - supports Tier-1 production without requalification. |
| No minimum load requirement | Stable regulation at 0 mA load - eliminates need for dummy resistive loads in low-power sleep modes. |
| Low-noise operation | 50 µVrms noise without bypass capacitor - reduces BOM count and board area vs. traditional low-noise LDOs. |
| High ESD robustness | 4 kV HBM / 200 V MM - withstands handling and assembly stresses in automotive manufacturing environments. |
| Ceramic capacitor compatible | Stable with ≥1 µF X7R/X5R ceramics - avoids costly tantalum or polymer capacitors and improves reliability. |
Applications
| Automotive Body Control Module | Notebook Computer Core Logic |
|---|---|
Use Scenario: Powering microcontroller peripherals (CAN, LIN, GPIO) in door module ECUs operating across battery voltage swings (9–16 V). IC Role / Device Role / Timing Role: Primary 2.8 V LDO supplying I/O banks and communication interfaces with AEC-Q100 compliance. Use Value: 170 mV dropout allows uninterrupted operation during cold-crank (6.5 V min); ±2% tolerance ensures peripheral logic timing margins. |
Use Scenario: Regulating 2.8 V supply for DDR memory termination and chipset I/O in ultra-thin notebooks. IC Role / Device Role / Timing Role: Low-noise, high-PSRR post-regulator for noise-sensitive digital subsystems. Use Value: 62 dB PSRR at 120 Hz rejects ripple from main buck converter; 50 µVrms noise prevents bit errors in high-speed memory interfaces. |
| Hard Disk Drive Servo Control | Portable Medical Sensor Hub |
Use Scenario: Providing clean 2.8 V bias to servo amplifier op-amps and position sensor signal chains in HDD actuator assemblies. IC Role / Device Role / Timing Role: Precision analog rail generator with minimal load regulation drift (≤30 mV). Use Value: 145–180 µA ground current ensures predictable power budgeting; no minimum load enables zero-current standby states. |
Use Scenario: Powering low-power biosensors (ECG, SpO₂) and BLE radio in handheld diagnostic devices powered by coin cells. IC Role / Device Role / Timing Role: Ultra-low-quiescent LDO delivering regulated 2.8 V from 3.0 V nominal battery. Use Value: 170 mV dropout extends usable battery life by >15% vs. higher-VDO alternatives; Pb-free DFN6 enables RoHS-compliant medical assembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8606MN28T2G | Same 2.8 V fixed output, but includes active-high EN pin (Pin 3); 12 µs enable time; slightly higher ground current (155–190 µA). | Required where system-level power sequencing or standby mode control is needed; not drop-in due to EN functionality and different pin mapping. | Select NCV8606MN28T2G only if enable control is mandatory; otherwise NCV8605MN28T2G reduces component count and layout complexity. |
| TPS7B6733QPWPRQ1 | 3.3 V fixed output (not 2.8 V); 400 mA max; 300 mV dropout at 400 mA; 45 µVrms noise; same AEC-Q100 Grade 1 rating. | Not voltage-compatible; suitable only if system can accept 3.3 V instead of 2.8 V - e.g., replacing legacy 3.3 V rails with automotive qualification. | Choose TPS7B6733QPWPRQ1 only for 3.3 V applications needing TI's enhanced transient response; not a functional substitute for 2.8 V use cases. |
Compared with NCV8605MN28T2G, NCV8606MN28T2G adds controllability at the cost of pin compatibility and marginally higher quiescent current, while TPS7B6733QPWPRQ1 offers alternate voltage and vendor ecosystem support but requires redesign for 3.3 V operation.
Availability
NCV8605MN28T2G is available at Aetrix Electronics and suitable for automotive body electronics, notebook computing power delivery, and portable instrumentation requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle assurance.
Supply support for NCV8605MN28T2G 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, sensing, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.
The NCV8605 series belongs to onsemi's automotive-grade LDO portfolio, engineered specifically for space-constrained, battery-powered systems demanding high PSRR, low noise, and AEC-Q100 reliability - such as ADAS domain controllers and infotainment power trees.
FAQ
What is the maximum input voltage for NCV8605MN28T2G?
The absolute maximum input voltage for NCV8605MN28T2G is 6.5 V, but the recommended operating range is 1.5 V to 6.0 V. Operation below 1.5 V is prohibited; minimum valid input is the greater of (VOUT + VDO) or 1.5 V - for 2.8 V output, this means ≥2.97 V typical under 500 mA load. Exceeding 6.5 V risks permanent damage per Absolute Maximum Ratings.
Does NCV8605MN28T2G require an external enable signal?
No, NCV8605MN28T2G does not require or support an external enable signal. Pin 3 is designated NC (not connected) and must remain unconnected - unlike the NCV8606 variant, which uses Pin 3 as an active-high EN input. System-level power control must be implemented upstream of the NCV8605MN28T2G input.
Can NCV8605MN28T2G operate with zero load current?
Yes, NCV8605MN28T2G is explicitly designed to regulate stably at 0 mA load - unlike many LDOs that require minimum load for accuracy. The datasheet confirms "no limitation for minimum load current" for fixed versions, making it ideal for always-on automotive modules entering deep sleep states.
What capacitor values are recommended for NCV8605MN28T2G?
NCV8605MN28T2G requires ≥1.0 µF ceramic input (CIN) and output (COUT) capacitors, placed adjacent to the device. Murata GRM219R71E105K (1 µF, 25 V, X7R, 0805) is cited as typical. Larger values improve transient response and noise rejection, but no minimum ESR is required - enabling low-cost, high-reliability MLCC usage.
Is NCV8605MN28T2G suitable for automotive applications?
Yes, NCV8605MN28T2G carries the NCV prefix, indicating AEC-Q100 qualification (Grade 1: −40°C to 125°C ambient), PPAP capability, and automotive-specific process controls. It is explicitly listed in "Typical Applications" for automotive systems and meets enhanced ESD ratings (4 kV HBM) required for vehicle assembly environments.
NCV8605MN28T2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 6-VDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 2.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.24V @ 500mA
- Current - Output:
- 500mA
- Current - Quiescent (Iq):
- 180 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-DFN (3x3.3)
NCV8605MN28T2G FAQ
1.How can I place an order for NCV8605MN28T2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8605MN28T2G 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 NCV8605MN28T2G reliable?
The price and inventory of NCV8605MN28T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8605MN28T2G is usually 5 days.
3.What payment methods are accepted for NCV8605MN28T2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8605MN28T2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8605MN28T2G?
NCV8605MN28T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8605MN28T2G 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 NCV8605MN28T2G?
For technical support, including NCV8605MN28T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8605MN28T2G requirements.
6.How does Aetrix verify that NCV8605MN28T2G is sourced from the original manufacturer or authorized distributors?
All NCV8605MN28T2G 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 NCV8605MN28T2G meets industry standards.
7.What is the process for return or replacement of NCV8605MN28T2G?
All NCV8605MN28T2G units undergo pre-shipment inspection (PSI). If there is an issue with NCV8605MN28T2G, 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 NCV8605MN28T2G part is unused and in its original packaging.
Return procedure for NCV8605MN28T2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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