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onsemi NCV8605MN25T2G
- Part No.:
- NCV8605MN25T2G
- Manufacturer:
- onsemi
- Package:
- 6-VDFN Exposed Pad
- Datasheet:
-
NCV8605MN25T2G.pdf
- Description:
- IC REG LINEAR 2.5V 500MA 6DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
NCV8605MN25T2G from onsemi is a fixed-output 2.5 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, 50 µVRMS output noise (10 Hz–100 kHz), and integrated thermal shutdown and current limiting. It is used in notebook computers and hard disk drivers where stable, low-noise power is critical.
For engineers reviewing the NCV8605MN25T2G datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q100 qualification, absence of enable pin (distinguishing it from NCV8606), low ground current (145–180 µA), high PSRR (62 dB @ 120 Hz), and compatibility with low-ESR ceramic capacitors without stability constraints.
Technical Context
The NCV8605MN25T2G implements a CMOS-based LDO architecture with internal PNP pass transistor, delivering fixed 2.5 V output without external feedback components. Its SENSE pin is internally connected to VOUT for fixed-voltage operation, eliminating resistor divider requirements.
It integrates protection circuitry including thermal shutdown (trip at 175°C, 10°C hysteresis) and current limit (675 mA), and operates across 1.5 V to 6.0 V input range with junction temperature support up to 150°C. The device meets AEC-Q100 Grade 1 requirements and is Pb-free, qualified for automotive applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5 V ±2% over −40°C to 125°C ambient - ensures stable core logic or analog supply under automotive thermal stress. |
| Max Output Current | 500 mA continuous - supports mid-power microcontrollers, sensors, or interface ICs in space-constrained modules. |
| Dropout Voltage | 170 mV typical at 500 mA - enables operation from single-cell Li-ion (3.0 V min) or 3.3 V rail with margin. |
| Ground Current | 145–180 µA independent of load - minimizes quiescent power loss in always-on automotive subsystems. |
| PSRR | 62 dB @ 120 Hz - suppresses ripple from switching DC/DC stages upstream, critical for ADC reference or RF bias rails. |
| Noise Voltage | 50 µVRMS (10 Hz–100 kHz) - eliminates need for external bypass capacitor, simplifying layout in noise-sensitive analog circuits. |
| Thermal Shutdown | 175°C trip with 10°C hysteresis - prevents permanent damage during sustained overload or poor PCB thermal design. |
Pinout & Package
NCV8605MN25T2G is housed in a thermally enhanced DFN6 3.0×3.3 mm package (Case 506AX) with exposed pad tied to GND for improved heat dissipation. Pin 1 and Pin 6 are both Vin inputs and must be externally shorted for full 500 mA output capability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 6 Vin | Positive power supply input | Both pins carry input current; must be connected together externally to achieve rated 500 mA output current. |
| 2 GND | Power supply ground | Primary ground return path; connects to exposed thermal pad for thermal management. |
| 3 NC | No connect | Not bonded internally; must remain unconnected - distinguishes NCV8605 from enable-equipped NCV8606. |
| 4 Vout | Regulated output voltage | Delivers fixed 2.5 V; requires ≥1 µF ceramic output capacitor placed adjacent to package for stability. |
| 5 SENSE | Output voltage sense input | Internally tied to Vout in fixed versions - no external components needed; enables accurate regulation without feedback resistors. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualified | Validated for automotive ambient temperatures (−40°C to +125°C) and PPAP-capable - suitable for body control, infotainment, and ADAS submodules. |
| Low-noise operation | 50 µVRMS output noise without bypass capacitor - reduces BOM count and PCB area vs. legacy low-noise LDOs requiring external CBYPASS. |
| High PSRR | 62 dB @ 120 Hz, 55 dB @ 1 kHz - maintains clean 2.5 V supply when powered from noisy buck converter outputs. |
| Thermal & current protection | Integrated 175°C thermal shutdown and 675 mA current limit - eliminates need for external fault-handling circuitry in compact designs. |
| Low IGND | 145–180 µA ground current, load-independent - extends battery life in always-on vehicle modules such as CAN transceiver keep-alive circuits. |
Applications
| Automotive Body Control Module (BCM) | Notebook Computer Core Logic Supply |
|---|---|
Use Scenario: Powering microcontroller I/O banks and CAN transceivers in door module electronics. IC Role / Device Role / Timing Role: Primary 2.5 V LDO supplying digital logic and communication interfaces. Use Value: AEC-Q100 qualification and −40°C to +125°C operation ensure reliability across vehicle lifetime; low noise prevents CAN bit errors. |
Use Scenario: Regulating 2.5 V for DDR memory termination or chipset auxiliary rails in ultrabook designs. IC Role / Device Role / Timing Role: Fixed-output LDO delivering stable voltage to high-speed digital subsystems. Use Value: 170 mV dropout allows use with 3.3 V intermediate bus; 50 µVRMS noise avoids signal integrity degradation in memory timing paths. |
| Hard Disk Drive (HDD) Servo Control | Portable Medical Instrumentation |
Use Scenario: Providing clean 2.5 V bias to HDD voice coil motor (VCM) driver op-amps and position-sensing ADCs. IC Role / Device Role / Timing Role: Low-noise analog supply regulator for precision servo loop components. Use Value: 62 dB PSRR rejects switching noise from nearby DC/DC converters; ±2% tolerance ensures consistent ADC reference accuracy. |
Use Scenario: Powering low-power analog front-end (AFE) and sensor signal conditioning circuits in handheld ECG monitors. IC Role / Device Role / Timing Role: Primary regulated supply for battery-powered analog signal chain. Use Value: 145–180 µA ground current extends single-charge battery life; Pb-free DFN6 package meets medical RoHS compliance requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8606MN25T2G | Same 2.5 V fixed output, but includes active-high EN pin; slightly higher ground current (150–190 µA). | Required where system-level power sequencing or standby mode control is needed. | Select NCV8606MN25T2G only if enable functionality is mandatory; NCV8605MN25T2G offers simpler routing and lower quiescent current. |
| LP8345MRE-2.5/NOPB | Pin-compatible 2.5 V LDO (TI), but lacks AEC-Q100 qualification and has higher noise (75 µVRMS) and lower PSRR (50 dB @ 120 Hz). | Suitable for industrial or consumer applications where automotive qualification is not required. | Choose LP8345MRE-2.5/NOPB for cost-sensitive non-automotive designs; NCV8605MN25T2G is preferred for automotive-grade reliability and noise performance. |
Compared with NCV8606MN25T2G, the NCV8605MN25T2G saves board space by eliminating EN trace routing and reduces standby power; versus LP8345MRE-2.5/NOPB, it delivers superior automotive qualification, lower noise, and higher PSRR - making it the optimal choice for safety-critical or noise-sensitive automotive subsystems.
Availability
NCV8605MN25T2G is available at Aetrix Electronics and suitable for automotive body control modules, notebook computer power rails, hard disk drive servo electronics, and portable medical instrumentation requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for NCV8605MN25T2G 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-qualified LDO portfolio, engineered specifically for demanding vehicle subsystems requiring AEC-Q100 compliance, low noise, and robust thermal protection in compact DFN packages.
FAQ
What is the maximum input voltage for the NCV8605MN25T2G?
The NCV8605MN25T2G supports an absolute maximum input voltage of 6.5 V, with recommended operating range from 1.5 V to 6.0 V. Operation below 1.5 V is not guaranteed, and minimum input must exceed (Vout + VDO) - for 2.5 V output, this means Vin ≥ 2.67 V at 500 mA load. Exceeding 6.5 V risks permanent damage per Absolute Maximum Ratings.
Does the NCV8605MN25T2G require an external enable signal?
No, the NCV8605MN25T2G does not have an enable function. Pin 3 is marked NC (no connect) and must remain unconnected. This distinguishes it from the NCV8606 variant, which uses Pin 3 as an active-high EN input. The NCV8605MN25T2G powers up automatically when valid input voltage is applied.
What output capacitor value is required for stable operation of the NCV8605MN25T2G?
The NCV8605MN25T2G requires a minimum 1.0 µF ceramic output capacitor placed adjacent to the package. Larger values (e.g., 10 µF) improve load transient response and noise rejection. Unlike many LDOs, it has no minimum ESR requirement and remains stable with low-ESR X7R/X5R ceramics - Murata GRM219R71E105K (1 µF, 25 V) is validated in the datasheet.
Is the NCV8605MN25T2G suitable for automotive applications?
Yes, the NCV8605MN25T2G carries the NCV prefix indicating AEC-Q100 Grade 1 qualification (−40°C to +125°C ambient), PPAP capability, and unique site/control change requirements. It is explicitly intended for automotive and other high-reliability applications, with built-in thermal shutdown (175°C) and current limit (675 mA) meeting functional safety expectations for non-safety-critical subsystems.
How does the NCV8605MN25T2G compare to the LP8345 in terms of output voltage accuracy?
The NCV8605MN25T2G guarantees ±2% output voltage tolerance over all operating conditions (−40°C to +125°C, 1–500 mA load), while the LP8345 specifies ±1.5% over 0°C to +70°C only. At automotive temperatures, the NCV8605MN25T2G maintains tighter regulation - e.g., 2.45–2.55 V at 125°C - whereas LP8345 performance degrades outside its commercial temperature range, making NCV8605MN25T2G more accurate in real-world vehicle environments.
NCV8605MN25T2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 6-VDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.25V @ 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)
NCV8605MN25T2G FAQ
1.How can I place an order for NCV8605MN25T2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8605MN25T2G 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 NCV8605MN25T2G reliable?
The price and inventory of NCV8605MN25T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8605MN25T2G is usually 5 days.
3.What payment methods are accepted for NCV8605MN25T2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8605MN25T2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8605MN25T2G?
NCV8605MN25T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8605MN25T2G 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 NCV8605MN25T2G?
For technical support, including NCV8605MN25T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8605MN25T2G requirements.
6.How does Aetrix verify that NCV8605MN25T2G is sourced from the original manufacturer or authorized distributors?
All NCV8605MN25T2G 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 NCV8605MN25T2G meets industry standards.
7.What is the process for return or replacement of NCV8605MN25T2G?
All NCV8605MN25T2G units undergo pre-shipment inspection (PSI). If there is an issue with NCV8605MN25T2G, 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 NCV8605MN25T2G part is unused and in its original packaging.
Return procedure for NCV8605MN25T2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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