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onsemi NCV8535MN285R2G
- Part No.:
- NCV8535MN285R2G
- Manufacturer:
- onsemi
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
NCV8535MN285R2G.pdf
- Description:
- IC REG LINEAR 2.85V 500MA 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
NCV8535MN285R2G from onsemi is an automotive-grade, ultra-high-accuracy low-dropout linear regulator delivering 2.85 V fixed output at up to 500 mA. It features ±0.9% output voltage accuracy over line/load/temperature, 260 mV typical dropout at full load, and reverse bias protection. Designed for DSP supply and display power rails in automotive infotainment systems.
For engineers reviewing the NCV8535MN285R2G datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q100 qualification, no-minimum-load stability, 1.0 µF MLCC-compatible output capacitance requirement, and integrated noise reduction (NR) and shutdown (SD) pins.
Technical Context
The NCV8535MN285R2G implements a PMOS pass transistor architecture enabling ultra-low dropout and reverse bias protection without external components. Its internal reference achieves ±0.9% initial accuracy with <±1.5% total variation across −40 °C to +125 °C operating range.
Stability is guaranteed with any capacitor type-including 1.0 µF MLCC-as no minimum ESR or output current is required. The dedicated SENSE pin (Pin 3) enables remote voltage sensing for improved regulation at point-of-load, while NR (Pin 7) accepts an optional 10 nF capacitor to reduce output noise to 40 µVRMS.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.85 V ±0.9% at 25 °C; ±1.5% over −40 °C to +125 °C - ensures stable core voltage for 2.8 V–3.0 V logic domains. |
| Max Output Current | 500 mA continuous - sufficient for powering single-core DSPs or display timing controllers. |
| Dropout Voltage | 340 mV typ. at 500 mA - enables operation from 3.25 V input when regulating 2.85 V output. |
| Quiescent Current | 9.0 mA in regulation, 0.07 µA in shutdown - supports low-power sleep modes in automotive modules. |
| Output Noise | 40 µVRMS with 10 nF CNR - meets stringent noise requirements for analog sensor interfaces and audio codecs. |
| Input Voltage Range | 2.9 V to 12 V - compatible with automotive battery rail (9–16 V nominal, down to cold-crank 4.5 V). |
| Thermal Shutdown | 160 °C junction temperature - protects against sustained overload in enclosed ECUs. |
Pinout & Package
NCV8535MN285R2G uses the DFNW10 (Case 507AM) 3×3 mm wettable flank package with exposed thermal pad (EPAD). The package supports high thermal performance (θJL2 = 17 °C/W) and automated optical solder-joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | Vout | Regulated 2.85 V output; requires ≥1.0 µF bypass capacitor to GND for stability. |
| 3 | SENSE | Remote sense input; connect directly to load-side Vout to compensate for PCB trace IR drop. |
| 4 | GND | Power ground; must be connected to EPAD for optimal thermal and noise performance. |
| 5, 6 | NC | No-connect; electrically isolated - leave unconnected and unpopulated on PCB. |
| 7 | NR | Noise reduction; tie to GND or add 10 nF capacitor to reduce output noise by ~30%. |
| 8 | SD | Active-low shutdown; drive ≤0.4 V to disable regulator (IQ = 0.07 µA). |
| 9, 10 | Vin | Input supply (2.9–12 V); requires local 1.0 µF ceramic decoupling capacitor. |
| EPAD | Thermal Pad | Exposed copper pad; must be soldered to large GND plane for thermal dissipation and EMI control. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualified | Validated for −40 °C to +125 °C ambient operation - suitable for engine bay and dashboard ECU placement. |
| No minimum load requirement | Stable down to 0 mA output - eliminates need for wasteful bleed resistors in standby mode. |
| Reverse bias protection | Blocks >10 µA reverse current when Vout > Vin (ΔV ≤ 7 V) - prevents backfeed in multi-rail systems. |
| MLCC-compatible stability | Stable with 1.0 µF X5R/X7R ceramic capacitors - reduces BOM cost and board area vs. tantalum. |
| Low-noise adjustable NR pin | Reduces output noise from 61 µVRMS to 40 µVRMS - critical for ADC reference and RF subsystems. |
Applications
| Automotive Infotainment Display Power | DSP Core Supply |
|---|---|
|
Use Scenario: Powering LCD timing controller and gamma correction IC in a 10.25″ digital instrument cluster. IC Role / Device Role / Timing Role: Primary 2.85 V LDO supplying noise-sensitive analog video circuitry. Use Value: 40 µVRMS noise with NR pin and ±0.9% accuracy prevent visible banding or color shift in high-resolution displays. |
Use Scenario: Providing clean 2.85 V supply to TI TMS320C55x DSP core in telematics control unit. IC Role / Device Role / Timing Role: Point-of-load regulator for DSP I/O and memory interface voltage domain. Use Value: No-minimum-load stability allows dynamic power gating; 340 mV dropout enables operation during 6 V cold-crank events. |
| Camera Module Bias Rail | Automotive Ethernet PHY Interface |
|
Use Scenario: Biasing CMOS image sensor analog front-end and PLL in rear-view camera module. IC Role / Device Role / Timing Role: Low-noise 2.85 V source for sensor analog supply and clock generation circuitry. Use Value: Remote SENSE pin compensates for 50 mΩ trace resistance, maintaining <±1% regulation at sensor die. |
Use Scenario: Powering Broadcom BCM54616S Ethernet PHY's 2.85 V analog supply in gateway ECU. IC Role / Device Role / Timing Role: Dedicated LDO for PHY analog section requiring low PSRR and high transient response. Use Value: 500 mA rating supports PHY + magnetics bias; AEC-Q100 qualification ensures compliance with ISO 16750-2. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7B8128QPWPRQ1 | 2.8 V fixed output, 300 mA, 250 mV dropout, 35 µVRMS noise, same DFN-10 package. | Lacks SENSE and NR pins; lower current rating limits use in DSP loads. | Select when noise is primary concern and load ≤300 mA; verify thermal margin with θJA = 66 °C/W. |
| MAX1725EUT28+T | 2.8 V fixed output, 250 mA, 180 mV dropout, no AEC-Q100, SOT-23-5 package. | Not automotive-qualified; lacks reverse bias protection and remote sensing. | Acceptable for non-safety-critical consumer-grade modules only; not suitable for ASIL-B systems. |
Compared with NCV8535MN285R2G, the TPS7B8128QPWPRQ1 offers lower noise but reduced current and missing SENSE/NR functionality, while the MAX1725EUT28+T trades automotive qualification and feature set for smaller footprint and lower cost in non-automotive designs.
Availability
NCV8535MN285R2G is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, and digital cluster electronics requiring stable component supply with AEC-Q100 compliance and long-term lifecycle support.
Supply support for NCV8535MN285R2G 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 is a global semiconductor leader focused on energy-efficient innovation for automotive, industrial, cloud, medical, and IoT applications, with manufacturing and design centers across Asia, Europe, and the Americas.
The NCV8535 series was engineered specifically for automotive power management, emphasizing ultra-high DC accuracy, low-noise operation, and robustness under harsh electrical conditions including load dump and cold-crank.
FAQ
What is the maximum input voltage for NCV8535MN285R2G?
The absolute maximum input voltage for NCV8535MN285R2G is +16 V, per the device's Maximum Ratings table. However, for reliable operation across the full automotive temperature range, the recommended maximum is 12 V. Exceeding 12 V may trigger thermal shutdown or degrade long-term reliability, especially above 150 °C junction temperature.
Does NCV8535MN285R2G require an external capacitor on the SENSE pin?
No, NCV8535MN285R2G does not require an external capacitor on the SENSE pin. Pin 3 (SENSE) is a high-impedance input intended for direct connection to the load-side Vout node to compensate for PCB trace voltage drop. Adding capacitance here would destabilize the feedback loop and is not supported per the datasheet application schematics.
Can NCV8535MN285R2G be used with ceramic output capacitors less than 1.0 µF?
No - the NCV8535MN285R2G is specified and characterized for stability only with ≥1.0 µF output capacitance, regardless of dielectric type. Using smaller ceramics (e.g., 0.47 µF) risks oscillation or poor transient response, as confirmed in the Stability section and Figure 1 application schematic which explicitly specifies "Cout ≥ 1.0 µF".
What is the purpose of the NR pin on NCV8535MN285R2G?
The NR (Noise Reduction) pin on NCV8535MN285R2G is an optional terminal that, when bypassed with a 10 nF capacitor to GND, reduces output noise from 61 µVRMS to 40 µVRMS. This function is independent of the main regulation loop and enhances power integrity for noise-sensitive analog circuits like ADC references or RF synthesizers powered by NCV8535MN285R2G.
Is NCV8535MN285R2G pin-compatible with other variants in the NCV8535 family?
Yes - all fixed-output variants of the NCV8535 family, including NCV8535MN285R2G, share identical DFNW10 (507AM) pinout and footprint. The SENSE, NR, SD, and GND assignments are consistent across 1.5 V to 5.0 V versions, enabling drop-in replacement during design iteration or voltage optimization without PCB revision.
NCV8535MN285R2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 12V
- Voltage - Output (Min/Fixed):
- 2.85V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.34V @ 500mA
- Current - Output:
- 500mA
- Current - Quiescent (Iq):
- 190 µA
- Current - Supply (Max):
- 14 mA
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (3x3)
NCV8535MN285R2G FAQ
1.How can I place an order for NCV8535MN285R2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8535MN285R2G 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 NCV8535MN285R2G reliable?
The price and inventory of NCV8535MN285R2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8535MN285R2G is usually 5 days.
3.What payment methods are accepted for NCV8535MN285R2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8535MN285R2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8535MN285R2G?
NCV8535MN285R2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8535MN285R2G 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 NCV8535MN285R2G?
For technical support, including NCV8535MN285R2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8535MN285R2G requirements.
6.How does Aetrix verify that NCV8535MN285R2G is sourced from the original manufacturer or authorized distributors?
All NCV8535MN285R2G 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 NCV8535MN285R2G meets industry standards.
7.What is the process for return or replacement of NCV8535MN285R2G?
All NCV8535MN285R2G units undergo pre-shipment inspection (PSI). If there is an issue with NCV8535MN285R2G, 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 NCV8535MN285R2G part is unused and in its original packaging.
Return procedure for NCV8535MN285R2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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