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onsemi NCV8570BMN280R2G
- Part No.:
- NCV8570BMN280R2G
- Manufacturer:
- onsemi
- Package:
- 6-VDFN Exposed Pad
- Datasheet:
-
NCV8570BMN280R2G.pdf
- Description:
- IC REG LINEAR 2.8V 200MA 6DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
NCV8570BMN280R2G from onsemi is an automotive-grade 200 mA ultra-low-noise LDO voltage regulator with 2.8 V fixed output, 10 µVRMS noise (10 Hz–100 kHz), 82 dB PSRR at 1 kHz, and 115 mV dropout at 200 mA - designed for RF, audio, and camera power rails in ADAS and infotainment systems.
For engineers reviewing the NCV8570BMN280R2G datasheet, pinout, applications, or equivalent options, this page delivers verified circuit role, package mapping, thermal performance, noise-sensitive design guidance, and AEC-Q100-compliant alternative options.
Technical Context
The NCV8570BMN280R2G uses a PMOS pass transistor architecture enabling low dropout and reverse-current protection via its inherent body diode. Its BYP pin provides direct access to the bandgap reference node, allowing external 10–100 nF capacitors to suppress output noise below 10 µVRMS.
It integrates active discharge (1 kΩ internal path), thermal shutdown (150 °C trip / 135 °C reset), current limiting (310 mA typ), and logic-level enable with 5 MΩ internal pull-down. Stability is guaranteed with ≥1 µF ceramic output capacitors and ESR < 100 mΩ.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8 V ±2.5% - ensures stable bias for RF front-ends and image sensor analog blocks without external feedback. |
| Max Output Current | 200 mA continuous - supports dual-path audio codecs or single-lane MIPI CSI-2 camera interfaces. |
| Output Noise | 10 µVRMS (10 Hz–100 kHz, Cnoise = 100 nF) - meets stringent SNR requirements for high-definition audio ADCs and CMOS image sensors. |
| PSRR | 82 dB at 1 kHz - rejects ripple from switching DC/DC converters feeding the LDO input, critical in mixed-signal SoC power domains. |
| Dropout Voltage | 115 mV at 200 mA - enables operation from 2.915 V input, supporting battery-powered systems down to 3.0 V nominal supply. |
| Quiescent Current | 75 µA at 200 mA load - minimizes standby power in always-on ADAS modules like lane-departure cameras. |
| Enable Threshold | 0.4 V (low) / 1.2 V (high) - compatible with 1.8 V and 3.3 V GPIOs for precise system-level power sequencing. |
Pinout & Package
NCV8570BMN280R2G is packaged in a thermally enhanced 2 mm × 2.2 mm DFN6 (Case 506BA) with exposed EPAD for improved heat dissipation (θJA = 110 °C/W on 1 oz FR4).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - EN | Logic Enable Input | Pull-down enabled (5 MΩ internal); <0.4 V disables regulator and reduces IQ to 0.1 µA - enables deep-sleep mode in automotive telematics. |
| 2, 5, EPAD - GND | Power Ground | Pins 2, 5, and EPAD are fused internally - requires solid thermal pad connection to PCB ground plane for thermal reliability and noise immunity. |
| 3 - IN | Input Supply | Accepts 2.5–5.5 V; must be decoupled with ≥1 µF ceramic capacitor near pin to suppress line transients and EMI coupling. |
| 4 - BYP | Noise Reduction Node | Connects to bandgap reference; 10–100 nF capacitor to GND reduces integrated output noise by up to 40% - critical for sub-10 µVRMS targets. |
| 6 - OUT | Regulated Output | Delivers 2.8 V ±2.5%; stable with 1–4.7 µF X5R/X7R ceramic capacitors; ESR < 100 mΩ required for phase margin > 45°. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low Noise | 10 µVRMS (10 Hz–100 kHz) with 100 nF BYP cap - enables clean power for 24-bit audio DACs and low-noise amplifiers in premium car audio. |
| High PSRR | 82 dB @ 1 kHz, >63 dB @ 10 kHz - maintains signal integrity when powered from noisy buck converter outputs in infotainment head units. |
| Active Discharge | Internal 1 kΩ discharge path activated on EN deassertion - reduces VOUT decay time to <1 ms, preventing latch-up in downstream logic during power cycling. |
| AEC-Q100 Qualified | Grade 1 (−40 °C to +125 °C junction), PPAP-capable - certified for engine bay, dashboard, and ADAS camera module deployment. |
| Stable with Small Caps | Guaranteed stability with ≥1 µF ceramic output capacitor - saves PCB area and BOM cost vs. legacy LDOs requiring ≥10 µF tantalum. |
Applications
| ADAS Camera Power | Automotive Infotainment Audio |
|---|---|
|
Use Scenario: Powering CMOS image sensor and ISP in rear-view or surround-view camera modules. IC Role / Device Role / Timing Role: Primary 2.8 V analog rail LDO delivering ultra-low-noise bias to pixel array and analog front-end. Use Value: 10 µVRMS noise prevents fixed-pattern noise and SNR degradation in 1080p/4K video streams under vehicle vibration and EMI. |
Use Scenario: Supplying 2.8 V to high-fidelity audio codec and Class-D amplifier in head unit or center console. IC Role / Device Role / Timing Role: Low-noise post-regulator for DAC reference and analog output stage, rejecting switcher ripple from main 5 V rail. Use Value: 82 dB PSRR at 1 kHz eliminates audible beat tones caused by 1 MHz DC/DC switching harmonics in cabin audio playback. |
| Satellite Radio Tuner | Lane Departure Warning System |
|
Use Scenario: Providing clean 2.8 V supply to RF tuner IC and low-noise amplifier in HD Radio receiver modules. IC Role / Device Role / Timing Role: Dedicated LDO for RF signal chain, isolated from digital noise sources via BYP pin filtering. Use Value: 100 nF BYP capacitor reduces phase noise floor by 3 dB, improving adjacent-channel rejection in weak-signal urban reception. |
Use Scenario: Powering vision processor and real-time image buffer in forward-facing camera for lane detection and object tracking. IC Role / Device Role / Timing Role: Always-on 2.8 V rail with <1 µA disable current, enabling instant wake-from-sleep for collision avoidance triggers. Use Value: 75 µA quiescent current at full load extends battery backup runtime during key-off monitoring without compromising response latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A2028PDQNR | 200 mA, 2.8 V, 6.5 µVRMS noise, but only 68 dB PSRR @ 1 kHz and non-AEC-Q100 rated. | Targeted at consumer portable electronics, not automotive environments. | Select only for non-automotive designs where ultra-low noise dominates over PSRR and qualification requirements. |
| NCP1117ST28T3G | 800 mA, 2.8 V, 120 µVRMS noise, no BYP pin, 70 dB PSRR @ 120 Hz, AEC-Q100 Grade 3 (−40 °C to +85 °C). | Higher current, lower noise performance, and reduced temperature range limit suitability for ADAS vision systems. | Use where higher output current is needed and ambient temperature stays below 85 °C; avoid in engine-compartment or camera-module placements. |
Compared with TPS7A2028PDQNR and NCP1117ST28T3G, the NCV8570BMN280R2G uniquely balances ultra-low noise (10 µVRMS), high PSRR (82 dB), AEC-Q100 Grade 1 qualification, and active discharge - making it the only option qualified for safety-critical 2.8 V rails in modern automotive vision and audio subsystems.
Availability
NCV8570BMN280R2G is available at Aetrix Electronics and suitable for automotive ADAS camera modules, infotainment audio subsystems, and satellite radio tuners requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for NCV8570BMN280R2G 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, and IoT applications, with core expertise in power management, imaging, and signal processing.
The NCV8570B product line delivers ultra-low-noise, high-PSRR LDOs specifically engineered for noise-sensitive analog circuits in automotive ADAS, infotainment, and telematics - emphasizing AEC-Q100 compliance, thermal robustness, and minimal PCB footprint.
FAQ
What is the maximum input voltage rating for the NCV8570BMN280R2G?
The NCV8570BMN280R2G has an absolute maximum input voltage of 6 V. Operation is specified over 2.5 V to 5.5 V input range. Exceeding 6 V may cause permanent damage per the Absolute Maximum Ratings table in the datasheet. For reliable automotive use, VIN should remain ≤5.5 V even during load-dump transients, requiring upstream clamping if necessary.
Does the NCV8570BMN280R2G require an external BYP capacitor to achieve its rated 10 µVRMS noise?
Yes - the NCV8570BMN280R2G achieves 10 µVRMS output noise only when a 100 nF capacitor is connected between the BYP pin and GND. With 10 nF, noise rises to 15 µVRMS. The BYP pin accesses the internal bandgap reference; bypassing it directly suppresses the dominant noise source, and omitting the capacitor degrades noise performance by >50%.
How does the active discharge function work in the NCV8570BMN280R2G?
When the EN pin is pulled low, the NCV8570BMN280R2G activates an internal 1 kΩ discharge path from OUT to GND. This rapidly discharges the output capacitor (e.g., 1 µF → 0 V in <1 ms), preventing residual voltage from holding downstream logic in undefined states during power-down sequences - essential for deterministic boot behavior in automotive ECUs.
Is the NCV8570BMN280R2G pin-compatible with other variants in the NCV8570B family?
Yes - all NCV8570B DFN6 variants (including NCV8570BMN180R2G, NCV8570BMN250R2G, NCV8570BMN300R2G, and NCV8570BMN330R2G) share identical pinout, package dimensions, and thermal pad layout. Only the output voltage and marking differ; no PCB redesign is needed when changing output voltage options within the same package.
What thermal derating applies to the NCV8570BMN280R2G at 125 °C ambient?
At 125 °C ambient temperature on a standard 1 oz FR4 board, the NCV8570BMN280R2G's maximum sustainable output current drops to ~120 mA due to thermal limits (TJ(max) = 125 °C, θJA = 110 °C/W). Derating curves in Figure 7 confirm VDO increases with temperature; full 200 mA load is only supported up to ~85 °C ambient with adequate copper area.
NCV8570BMN280R2G 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):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.205V @ 200mA
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 110 µA
- Current - Supply (Max):
- 130 µA
- PSRR:
- 82dB ~ 63dB (1kHz ~ 10kHz)
- Control Features:
- Enable
- 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 (2x2.2)
NCV8570BMN280R2G FAQ
1.How can I place an order for NCV8570BMN280R2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8570BMN280R2G 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 NCV8570BMN280R2G reliable?
The price and inventory of NCV8570BMN280R2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8570BMN280R2G is usually 5 days.
3.What payment methods are accepted for NCV8570BMN280R2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8570BMN280R2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8570BMN280R2G?
NCV8570BMN280R2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8570BMN280R2G 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 NCV8570BMN280R2G?
For technical support, including NCV8570BMN280R2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8570BMN280R2G requirements.
6.How does Aetrix verify that NCV8570BMN280R2G is sourced from the original manufacturer or authorized distributors?
All NCV8570BMN280R2G 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 NCV8570BMN280R2G meets industry standards.
7.What is the process for return or replacement of NCV8570BMN280R2G?
All NCV8570BMN280R2G units undergo pre-shipment inspection (PSI). If there is an issue with NCV8570BMN280R2G, 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 NCV8570BMN280R2G part is unused and in its original packaging.
Return procedure for NCV8570BMN280R2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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