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onsemi NCV8690MN33T2G
- Part No.:
- NCV8690MN33T2G
- Manufacturer:
- onsemi
- Package:
- 6-VDFN Exposed Pad
- Datasheet:
-
NCV8690MN33T2G.pdf
- Description:
- IC REG LINEAR 3.3V 1A 6DFN
- Quantity:
- Payment:
- Shipping:
Inventory:9,967
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Product details
Overview
NCV8690MN33T2G from onsemi is an automotive-grade, fixed-output 3.3 V, 1 A low-dropout (LDO) linear voltage regulator in a DFN6 3×3 mm package. It delivers ±2% output voltage tolerance over −40°C to +125°C, features 190 mV dropout at 1 A (VOUT = 3.3 V), active output discharge, and AEC-Q100 qualification for use in engine control units and ADAS power rails.
For engineers reviewing the NCV8690MN33T2G datasheet, pinout, applications, or equivalent options, key selection criteria include guaranteed 1 A output under automotive thermal conditions, low ground current (145 µA at 1 A load), high PSRR (55 dB @ 1 kHz), and compatibility with low-ESR ceramic capacitors without stability constraints.
Technical Context
The NCV8690MN33T2G implements a CMOS-based LDO architecture with internal bandgap reference, MOSFET pass element, and thermal shutdown (175°C trip, 10°C hysteresis). It operates across 1.5 V to 6.0 V input range and maintains regulation down to 190 mV dropout at full 1 A load - enabling efficient operation in 5 V or 3.3 V intermediate bus systems.
Unlike enable-equipped variants (NCP691/NCP692), the NCV8690MN33T2G has no functional EN pin: Pin 3 is NC and must be left unconnected. Its fixed 3.3 V output is trimmed at wafer level, eliminating external feedback components and reducing BOM count in space-constrained automotive modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±2% over −40°C to +125°C - ensures stable MCU I/O rail compliance across automotive temperature extremes. |
| Max Output Current | 1 A continuous - supports single-core microcontrollers, CAN transceivers, and sensor signal chains without derating at TJ ≤ 125°C. |
| Dropout Voltage | 190 mV at 1 A (VOUT = 3.3 V, TJ = 25°C) - enables operation from 3.5 V input, preserving headroom in battery-sag scenarios. |
| Ground Current | 145 µA at 1 A load - minimizes quiescent power loss critical for always-on vehicle subsystems. |
| PSRR | 55 dB @ 1 kHz - suppresses switching noise from upstream DC-DC converters feeding the LDO input. |
| Noise Voltage | 50 µVrms (200 Hz–100 kHz) - meets low-noise requirements for analog sensors and ADC references. |
| Thermal Shutdown | 175°C activation with 10°C hysteresis - provides robust fault protection during sustained overload or poor PCB heatsinking. |
Pinout & Package
NCV8690MN33T2G is housed in a thermally enhanced DFN6 3×3 mm package (Case 506AH) with exposed thermal pad (EPAD) on underside for PCB heat dissipation. The package supports 64 °C/W junction-to-ambient thermal resistance on 645 mm² copper area.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 6 | IN | Primary input voltage supply pins - both must be connected in parallel to deliver full 1 A output current and minimize trace impedance. |
| 2 | GND | Power ground tied to die via lead frame - soldered to large copper pour for thermal management and low-noise return path. |
| 3 | N/C | No-connect pin - electrically isolated and must remain unconnected per datasheet Table 1. |
| 4 | OUT | Regulated 3.3 V output - connects directly to load; requires ≥1 µF ceramic capacitor for stability. |
| 5 | SNS | Sense input - must be shorted directly to OUT pin to enable precision regulation and improve load transient response. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualified | Grade 1 (−40°C to +125°C) qualification with PPAP capability - meets automotive production release requirements. |
| Active output discharge | Internal NMOS switch discharges OUT when input is removed - prevents floating voltage on downstream logic during power-down sequencing. |
| Low-noise operation | 50 µVrms integrated noise without bypass capacitor - eliminates need for external noise-reduction caps and reduces startup time to 50 µs. |
| Enhanced ESD protection | 4 kV HBM / 200 V MM - improves robustness during board handling and in-cabin ESD events. |
| Ceramic capacitor compatible | Stable with ≥1 µF ceramic output cap - avoids costly tantalum or polymer capacitors and simplifies layout. |
Applications
| Engine Control Unit (ECU) Power Rail | Advanced Driver Assistance Systems (ADAS) Camera Module |
|---|---|
Use Scenario: Supplies clean 3.3 V to microcontroller, CAN interface, and analog sensor front-end in under-hood ECU modules. IC Role / Device Role / Timing Role: Primary post-regulator delivering stable, low-noise voltage to safety-critical MCU peripherals. Use Value: ±2% output tolerance and 175°C thermal shutdown ensure functional safety compliance (ISO 26262 ASIL-B) under transient thermal stress. | Use Scenario: Powers image signal processor (ISP) and serializer ICs in rear-view or surround-view camera modules. IC Role / Device Role / Timing Role: Low-noise local regulator isolating sensitive analog imaging circuitry from noisy DC-DC converter outputs. Use Value: 50 µVrms noise and 55 dB PSRR prevent switching artifacts from degrading image quality in low-light conditions. |
| Automotive Infotainment Head Unit | Body Control Module (BCM) Microcontroller Supply |
Use Scenario: Provides regulated 3.3 V to audio codec, touch controller, and display interface in dashboard infotainment systems. IC Role / Device Role / Timing Role: Fixed-output LDO decoupling digital subsystems from shared 5 V system rail. Use Value: 190 mV dropout enables reliable operation during cold-crank (battery dip to 6 V), maintaining UI responsiveness. | Use Scenario: Supplies 3.3 V to 8/16-bit microcontrollers managing door locks, lighting, and HVAC in BCMs. IC Role / Device Role / Timing Role: Always-on LDO supporting wake-up functionality with ultra-low ground current (145 µA). Use Value: Low quiescent current extends battery life during vehicle sleep mode while retaining fast wake-up capability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8664CDT33RKG | 3.3 V, 150 mA max output; lower current rating and no active discharge. | Suitable only for low-power MCU cores or logic, not for 1 A loads like CAN transceivers or sensor arrays. | Select only if load current < 150 mA and active discharge is unnecessary. |
| TLV73333PDBVR | 3.3 V, 300 mA; higher PSRR (70 dB @ 1 kHz) but lacks AEC-Q100 qualification and thermal shutdown hysteresis. | Applicable in non-automotive industrial or consumer designs where automotive reliability is not required. | Choose for cost-sensitive non-automotive applications needing higher PSRR but not automotive qualification. |
Compared with NCV8690MN33T2G, NCV8664CDT33RKG offers lower cost but cannot support 1 A loads, while TLV73333PDBVR trades automotive qualification and thermal robustness for improved noise rejection in benign environments.
Availability
NCV8690MN33T2G is available at Aetrix Electronics and suitable for automotive engine control units, ADAS camera modules, and body control modules requiring stable component supply with full AEC-Q100 traceability and long-term lifecycle support.
Supply support for NCV8690MN33T2G 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 NCV8690MN33T2G belongs to onsemi's automotive-qualified LDO family designed specifically for demanding power-rail applications in engine compartments, ADAS, and infotainment systems where reliability, thermal resilience, and functional safety are mandatory.
FAQ
What is the maximum input voltage rating for NCV8690MN33T2G?
The absolute maximum input voltage for NCV8690MN33T2G is 6.5 V, but the recommended operating input range is 1.5 V to 6.0 V. Operation above 6.0 V risks exceeding safe junction temperature limits even at light loads, and the device may enter thermal shutdown or suffer permanent damage if sustained.
Does NCV8690MN33T2G require an external enable signal to operate?
No, NCV8690MN33T2G does not require an external enable signal. Pin 3 is designated N/C (no connect) and must remain unconnected. The regulator powers up automatically when valid input voltage is applied to Pins 1 and 6, making it ideal for simple, always-on automotive subsystems.
Can NCV8690MN33T2G be used with ceramic output capacitors smaller than 10 µF?
Yes - NCV8690MN33T2G is stable with as little as 1 µF ceramic output capacitance. While 10 µF is recommended for optimal load transient response, the minimum 1 µF requirement simplifies design, reduces cost, and avoids ESR-related stability concerns common in older LDO architectures.
What is the purpose of the SNS pin on NCV8690MN33T2G?
The SNS (sense) pin on NCV8690MN33T2G must be shorted directly to the OUT pin. This Kelvin connection enables remote-sense regulation, improving output voltage accuracy and transient response by compensating for PCB trace resistance between the regulator and load.
Is NCV8690MN33T2G pin-compatible with other devices in the NCP69x/NCV8690 family?
No - NCV8690MN33T2G is not pin-compatible with NCP691 or NCP692 variants. Those parts use Pin 3 as an active EN (enable) input (low or high), whereas NCV8690MN33T2G leaves Pin 3 unconnected. Swapping them without PCB revision will result in non-functional or unstable operation.
NCV8690MN33T2G 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):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.25V @ 1A
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- 200 µA
- Current - Supply (Max):
- 240 µA
- PSRR:
- -
- Control Features:
- -
- Protection Features:
- Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-DFN (3x3)
NCV8690MN33T2G FAQ
1.How can I place an order for NCV8690MN33T2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8690MN33T2G 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 NCV8690MN33T2G reliable?
The price and inventory of NCV8690MN33T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8690MN33T2G is usually 5 days.
3.What payment methods are accepted for NCV8690MN33T2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8690MN33T2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8690MN33T2G?
NCV8690MN33T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8690MN33T2G 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 NCV8690MN33T2G?
For technical support, including NCV8690MN33T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8690MN33T2G requirements.
6.How does Aetrix verify that NCV8690MN33T2G is sourced from the original manufacturer or authorized distributors?
All NCV8690MN33T2G 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 NCV8690MN33T2G meets industry standards.
7.What is the process for return or replacement of NCV8690MN33T2G?
All NCV8690MN33T2G units undergo pre-shipment inspection (PSI). If there is an issue with NCV8690MN33T2G, 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 NCV8690MN33T2G part is unused and in its original packaging.
Return procedure for NCV8690MN33T2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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