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onsemi NCV8605MN50T2G
- Part No.:
- NCV8605MN50T2G
- Manufacturer:
- onsemi
- Package:
- 6-VDFN Exposed Pad
- Datasheet:
-
NCV8605MN50T2G.pdf
- Description:
- IC REG LINEAR 5V 500MA 6DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,431
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Product details
Overview
NCV8605MN50T2G from onsemi is a fixed-output 5.0 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 dropout at 500 mA, 62 dB PSRR at 120 Hz, and 50 µVRMS output noise (10 Hz–100 kHz), enabling stable power for sensitive analog and digital circuits in notebook computers and hard disk drivers.
For engineers reviewing the NCV8605MN50T2G datasheet, pinout, applications, or equivalent options, this page provides verified technical context, validated pin functions, real-world application mappings, and two confirmed alternative parts with documented functional and packaging differences - all aligned to AEC-Q100 automotive qualification requirements.
Technical Context
The NCV8605MN50T2G integrates a PMOS pass transistor with internal current limiting (675 mA), thermal shutdown (175°C), and an overshoot clamp circuit active during load transients. Its ground current remains constant at 145–180 µA across full load (1–500 mA), independent of output current - a key advantage over NMOS-based LDOs.
Unlike the enable-equipped NCV8606 variant, NCV8605MN50T2G has no EN pin (Pin 3 is NC); its operation is always-on when input voltage is applied. The SENSE/ADJ pin (Pin 5) connects directly to the output capacitor for fixed-voltage regulation, ensuring tight feedback loop stability without external resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0 V ±2% over −40°C to +125°C - ensures reliable logic-level supply for microcontrollers and sensors without external adjustment. |
| Max Output Current | 500 mA continuous - supports moderate-power subsystems like USB PHYs or display bias rails in automotive infotainment. |
| Dropout Voltage | 170 mV at 500 mA - enables operation from 5.17 V input, critical for battery-powered systems with declining voltage profiles. |
| PSRR | 62 dB @ 120 Hz - suppresses ripple from switching DC-DC stages upstream, preserving signal integrity in ADC reference paths. |
| Output Noise | 50 µVRMS (10 Hz–100 kHz) - eliminates need for external bypass capacitors, reducing BOM count and PCB area. |
| Ground Current | 145–180 µA, load-independent - minimizes quiescent power loss in always-on automotive modules (e.g., CAN wake-up circuits). |
| Thermal Shutdown | 175°C with 10°C hysteresis - protects against sustained overload or poor heatsinking in sealed enclosures. |
Pinout & Package
NCV8605MN50T2G uses the DFN6 3.0×3.3 mm, 0.95 mm pitch package (Case 506AX) with exposed thermal pad connected 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 requiring external connection - reduces trace resistance and improves thermal performance under high current. |
| 2 | GND | Power ground return path; ties to exposed EPAD for enhanced thermal dissipation (RθJC = 18°C/W). |
| 3 | NC | No-connect - not internally bonded; must remain unconnected per datasheet to avoid parasitic coupling. |
| 4 | Vout | Regulated 5.0 V output - requires ≥1 µF ceramic capacitor placed adjacent to pin for transient stability. |
| 5 | SENSE/ADJ | Feedback node - for fixed versions, directly tied to Vout capacitor to close regulation loop with minimal trace inductance. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualified | Grade 1 (−40°C to +125°C ambient) - certified for automotive body control modules and ADAS sensor power rails. |
| Low-noise operation | 50 µVRMS without bypass cap - enables direct powering of RF front-ends and precision op-amps without added filtering. |
| Enhanced ESD robustness | 4 kV HBM / 200 V MM - withstands handling and board-level ESD events in manufacturing and field environments. |
| Stable with ceramic caps only | No minimum ESR requirement - supports low-cost, small-footprint 0805 X7R capacitors (e.g., GRM219R71E105K). |
| Thermal foldback protection | 175°C shutdown + 10°C hysteresis - prevents latch-up during sustained overload while allowing safe recovery after cooling. |
Applications
| Automotive Body Control Module | Notebook Computer Core Logic Rail |
|---|---|
|
Use Scenario: Powering MCU, CAN transceiver, and door-lock actuator drivers in a vehicle's BCM unit operating from 12 V battery with cold-crank dips to 6 V. IC Role / Device Role / Timing Role: Primary 5.0 V LDO delivering clean, regulated supply with fast line transient response (<100 µs recovery) to maintain MCU clock stability during ignition pulses. Use Value: 170 mV dropout allows uninterrupted operation down to 5.17 V input; ±2% tolerance ensures I/O compatibility with 5 V-tolerant peripherals across temperature extremes. |
Use Scenario: Supplying USB 2.0 controller, touchpad interface, and embedded controller in ultra-thin laptop designs where space and thermal headroom are constrained. IC Role / Device Role / Timing Role: Fixed 5.0 V post-regulator downstream of buck converter, providing low-noise rail for high-speed digital interfaces. Use Value: 50 µVRMS noise prevents bit errors in USB packet transmission; DFN6 3×3.3 mm footprint saves >40% board area vs. SOIC-8 alternatives. |
| Hard Disk Drive Actuator Driver | Portable Medical Instrumentation |
|
Use Scenario: Biasing voice-coil motor driver ICs and servo position sensors in 2.5-inch HDDs subjected to mechanical shock and wide ambient temperature swings. IC Role / Device Role / Timing Role: Precision 5.0 V reference source for DACs and current-sense amplifiers controlling actuator coil current. Use Value: 1.5% typical output voltage drift over temperature ensures consistent positioning accuracy; 62 dB PSRR rejects switching noise from spindle motor drivers. |
Use Scenario: Powering analog front-end (AFE) of handheld ECG monitor requiring ultra-low noise and guaranteed operation from lithium-polymer battery (3.0–4.2 V). IC Role / Device Role / Timing Role: Low-noise 5.0 V supply for instrumentation amplifiers and 24-bit sigma-delta ADC reference buffer. Use Value: No external bypass capacitor needed - simplifies layout and eliminates capacitor aging effects on long-term gain stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8606MN50T2G | Same 5.0 V fixed output, but includes active-high EN pin (Pin 3); higher enable threshold (0.9 V) and 12 µs enable time. | Required where system-level power sequencing or standby mode is needed; incompatible if board lacks EN routing. | Select NCV8606MN50T2G only when explicit enable control is required; otherwise NCV8605MN50T2G offers simpler layout and lower cost. |
| LP8345SDX-5.0/NOPB | 5.0 V fixed LDO with 300 mA rating, 250 mV dropout, and no AEC-Q100 qualification; uses SOT-23-5 package. | Suitable for non-automotive consumer electronics; cannot replace NCV8605MN50T2G in PPAP-controlled automotive programs. | Choose LP8345SDX-5.0/NOPB for cost-sensitive industrial or computing applications where AEC-Q100 is not mandated. |
Compared with NCV8606MN50T2G, NCV8605MN50T2G eliminates enable circuitry to reduce quiescent current and simplify PCB routing; compared with LP8345SDX-5.0/NOPB, it delivers 67% higher current, 32% lower dropout, and full automotive qualification - making it the only drop-in solution for safety-critical 5 V rails.
Availability
NCV8605MN50T2G is available at Aetrix Electronics and suitable for automotive body control modules, notebook computer core logic rails, and portable medical instrumentation requiring stable component supply with full AEC-Q100 compliance and PPAP documentation support.
Supply support for NCV8605MN50T2G 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, and sensing technologies for automotive, industrial, and cloud infrastructure markets.
The NCV8605 series belongs to onsemi's automotive-grade LDO portfolio, engineered specifically for high-reliability power delivery in engine control units, ADAS cameras, and infotainment systems where low noise, thermal resilience, and AEC-Q100 Grade 1 compliance are mandatory.
FAQ
What is the maximum input voltage for NCV8605MN50T2G?
The absolute maximum input voltage for NCV8605MN50T2G is 6.5 V, but the recommended operating range is 1.5 V to 6.0 V. For reliable 5.0 V regulation at 500 mA, minimum input must be at least 5.17 V (5.0 V + 170 mV dropout). Operation below 1.5 V is not supported due to internal bias constraints.
Does NCV8605MN50T2G require an external resistor network for 5.0 V output?
No, NCV8605MN50T2G is a fixed-output variant - its 5.0 V regulation is achieved internally, and Pin 5 (SENSE/ADJ) must be connected directly to the output capacitor. External resistors are only required for adjustable versions like NCV8605MNADJT2G, not for NCV8605MN50T2G.
Is NCV8605MN50T2G pin-compatible with NCV8606MN50T2G?
No, NCV8605MN50T2G and NCV8606MN50T2G are not pin-compatible: Pin 3 is NC in NCV8605MN50T2G but serves as active-high EN in NCV8606MN50T2G. Using them interchangeably without board revision will result in either unintended enable behavior or floating EN node failure.
What thermal performance can be expected from NCV8605MN50T2G on a standard PCB?
When soldered on 645 mm² of 1 oz copper on FR4, NCV8605MN50T2G achieves RθJA = 75°C/W. At 500 mA and 5.17 V input, power dissipation is ~85 mW, resulting in <10°C junction-to-ambient rise - well within the 125°C max operating limit even at 85°C ambient.
Can NCV8605MN50T2G be used in non-automotive applications?
Yes, NCV8605MN50T2G is fully functional in industrial and computing applications, though its AEC-Q100 qualification and PPAP capability make it especially valuable where long-term reliability, extended temperature operation (−40°C to +125°C), and supply chain traceability are required - such as in medical or aerospace-adjacent systems.
NCV8605MN50T2G 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):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.2V @ 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)
NCV8605MN50T2G FAQ
1.How can I place an order for NCV8605MN50T2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8605MN50T2G 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 NCV8605MN50T2G reliable?
The price and inventory of NCV8605MN50T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8605MN50T2G is usually 5 days.
3.What payment methods are accepted for NCV8605MN50T2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8605MN50T2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8605MN50T2G?
NCV8605MN50T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8605MN50T2G 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 NCV8605MN50T2G?
For technical support, including NCV8605MN50T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8605MN50T2G requirements.
6.How does Aetrix verify that NCV8605MN50T2G is sourced from the original manufacturer or authorized distributors?
All NCV8605MN50T2G 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 NCV8605MN50T2G meets industry standards.
7.What is the process for return or replacement of NCV8605MN50T2G?
All NCV8605MN50T2G units undergo pre-shipment inspection (PSI). If there is an issue with NCV8605MN50T2G, 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 NCV8605MN50T2G part is unused and in its original packaging.
Return procedure for NCV8605MN50T2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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