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onsemi NCV8570MN280R2G
- Part No.:
- NCV8570MN280R2G
- Manufacturer:
- onsemi
- Package:
- 6-VDFN Exposed Pad
- Datasheet:
-
NCV8570MN280R2G.pdf
- Description:
- IC REG LINEAR 2.8V 200MA 6DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,813
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Product details
Overview
NCV8570MN280R2G from onsemi is a 200 mA ultra-low-noise, high-PSRR BiCMOS LDO regulator delivering 2.8 V output with ±2% accuracy, 15 µVrms noise (typ), and 80 dB PSRR at 1 kHz - engineered for RF power amplifier biasing in automotive satellite radios and infotainment systems.
For engineers reviewing the NCV8570MN280R2G datasheet, pinout, applications, or equivalent options, this page delivers verified package mapping (DFN6 2×2.2 mm), validated thermal performance (RJA = 120 °C/W), AEC-Q100 qualification status, and real-world noise-reduction implementation using the Cnoise pin.
Technical Context
The NCV8570MN280R2G employs a BiCMOS process to integrate bipolar elements for ultra-low noise and CMOS for low ground current (70–220 µA), enabling stable operation with ceramic output capacitors as low as 1 µF. Its dedicated Cnoise pin provides direct access to the internal bandgap reference node for external 10–100 nF bypassing.
It features active discharge circuitry triggered by CE pin assertion, achieving fast turn-off (≤800 µs at 1 mA load) without external components. Thermal shutdown activates at 150 °C with 20 °C hysteresis, and current limiting is set to 200 mA (min) with short-circuit protection up to 320 mA (typ).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.8 V ±2% (ensures stable bias for RF PAs without trimming) |
| Noise (10 Hz–100 kHz) | 15 µVrms (typ) with 100 nF Cnoise capacitor - meets stringent SNR requirements in HD radio front-ends) |
| PSRR @ 1 kHz | 80 dB (typ) - suppresses switching noise from adjacent DC/DC converters) |
| Dropout Voltage | 105 mV @ 150 mA (enables operation from 2.905 V input - critical for battery-powered infotainment) |
| Ground Current | 70 µA @ 1 mA load; 220 µA @ 200 mA load (minimizes quiescent drain in always-on automotive modules) |
| Enable Threshold | 0.4 V (max) low-level; 1.2 V (min) high-level - compatible with 1.8 V/3.3 V logic without level shifters) |
| Thermal Shutdown | 150 °C (typ) with 20 °C hysteresis - prevents latch-up during transient overloads in enclosed enclosures) |
Pinout & Package
NCV8570MN280R2G is housed in a Pb-free DFN6 2×2.2 mm package (Case 506BA) with exposed thermal pad (EPAD) fused to pins 2, 5, and EPAD for enhanced heat dissipation. Package thermal resistance is RJA = 120 °C/W (Junction-to-Ambient) and RJL = 37 °C/W (Junction-to-Lead).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | CE (Chip Enable) | Logic-controlled on/off input; internal 5 MΩ pull-down ensures safe default-off state when floating |
| 2, 5, EPAD | GND | Power ground with fused connection across three terminals - reduces impedance and improves thermal path |
| 3 | Vin | Main input supply (2.5–5.5 V); supports wide-input automotive battery range with reverse-polarity protection not required |
| 4 | Vout | Regulated 2.8 V output; stable with 1 µF ceramic capacitor - eliminates need for large tantalum or electrolytic caps |
| 6 | Cnoise | Noise reduction terminal connected directly to internal bandgap reference - 10–100 nF to GND cuts output noise by 5 µVrms |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low noise architecture | Bipolar-based error amplifier + CMOS pass device enables 15 µVrms noise while maintaining 220 µA full-load ground current |
| Active discharge circuit | Internal transistor discharges Vout within 800 µs (1 mA load) - eliminates hold-up voltage that could disrupt downstream logic sequencing |
| AEC-Q100 qualified | Qualified to Grade 1 (−40 °C to +125 °C ambient) with PPAP capability - meets OEM requirements for automotive infotainment ECUs |
| Stable with low-ESR ceramics | No minimum ESR requirement for 1 µF output capacitor - enables use of compact, reliable X7R/X5R MLCCs instead of higher-failure-rate tantalums |
| Low sleep-mode current | ≤1 µA disable current - preserves battery life in always-on GPS receivers and telematics modules |
Applications
| Automotive Satellite Radio PA Bias | HD Audio DAC Power Supply |
|---|---|
Use Scenario: Supplies clean 2.8 V bias to GaAs power amplifiers in roof-mounted satellite radio modules operating in harsh automotive environments. IC Role / Device Role / Timing Role: Low-noise LDO providing regulated rail for RF PA stage - replaces noisier switching regulators to prevent AM/FM interference. Use Value: 80 dB PSRR at 1 kHz rejects ripple from 12 V buck converter; 15 µVrms noise ensures >95 dB SNR in 200 kHz–2.5 MHz IF band. |
Use Scenario: Powers stereo audio DACs in vehicle infotainment head units where analog output purity directly impacts perceived sound quality. IC Role / Device Role / Timing Role: Precision analog supply LDO decoupling digital switching noise from sensitive analog signal paths. Use Value: ±2% output tolerance maintains consistent DAC full-scale voltage; Cnoise pin allows 10 nF bypass to reduce broadband noise below audible threshold. |
| GPS Receiver LNA Supply | Automotive Instrument Cluster MCU Core |
Use Scenario: Delivers ultra-clean 2.8 V to low-noise amplifiers in GNSS receivers requiring sub-1 dB NF under varying temperature and vibration conditions. IC Role / Device Role / Timing Role: Front-end analog supply LDO ensuring minimal phase noise injection into 1.575 GHz L1 band signal chain. Use Value: 105 mV dropout at 150 mA enables operation down to 2.905 V input - critical during cold-crank battery dips to 6.5 V. |
Use Scenario: Provides core voltage to 32-bit ARM Cortex-M microcontrollers in digital instrument clusters with strict EMC and thermal constraints. IC Role / Device Role / Timing Role: System-level power management IC supplying regulated 2.8 V to MCU VDDCORE with enable control synchronized to CAN wake-up events. Use Value: CE pin logic compatibility with 3.3 V CAN transceivers enables seamless power sequencing; AEC-Q100 qualification ensures reliability over 15-year vehicle lifecycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A2028PDBVR | 2.8 V, 300 mA, 12 µVrms noise, but only 60 dB PSRR @ 1 kHz and no Cnoise pin | Lacks dedicated noise-reduction pin - requires external RC filter for equivalent RF noise suppression | Preferred where higher output current is needed but RF sensitivity is moderate |
| MAX1725EZK28+T | 2.8 V, 200 mA, 45 µVrms noise, 70 dB PSRR @ 1 kHz, TSOT-23-5 package | Higher noise and lower PSRR limit use in satellite radio; smaller footprint but no thermal pad | Suitable for space-constrained non-RF applications like body control modules |
Compared with TPS7A2028PDBVR and MAX1725EZK28+T, the NCV8570MN280R2G uniquely combines AEC-Q100 qualification, Cnoise pin for tunable noise reduction, and 80 dB PSRR - making it the only option qualified for automotive RF front-end biasing where spectral purity is non-negotiable.
Availability
NCV8570MN280R2G is available at Aetrix Electronics and suitable for automotive infotainment systems, satellite radio modules, and precision instrumentation requiring stable component supply with AEC-Q100 compliance and long-term lifecycle support.
Supply support for NCV8570MN280R2G 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, sensor, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.
The NCV8570 series was designed specifically for noise-sensitive automotive RF applications - targeting satellite radio, GPS, and infotainment subsystems where ultra-low noise, high PSRR, and AEC-Q100 reliability are mandatory.
FAQ
What is the maximum input voltage rating for the NCV8570MN280R2G?
The NCV8570MN280R2G has an absolute maximum input voltage of 6 V. Operation above 5.5 V is not recommended per the Recommended Operating Conditions table. Exceeding 6 V risks permanent damage due to junction breakdown, especially under hot ambient conditions where thermal stress compounds electrical overstress.
Does the NCV8570MN280R2G require an external capacitor on the Cnoise pin?
Yes - the NCV8570MN280R2G requires a capacitor (10 nF to 100 nF) between the Cnoise pin and GND to achieve its specified 15 µVrms noise performance. Without this capacitor, output noise rises to 20 µVrms. The capacitor must be placed as close as possible to the Cnoise pin to minimize parasitic inductance.
Is the NCV8570MN280R2G pin-compatible with other variants in the NCV8570 family?
Yes - all NCV8570 DFN6 variants (e.g., NCV8570MN180R2G, NCV8570MN330R2G) share identical pinout, package dimensions, and thermal pad layout. Only the output voltage and marking code differ; no PCB redesign is needed when changing voltage options within the same package type.
What is the thermal shutdown behavior of the NCV8570MN280R2G?
The NCV8570MN280R2G enters thermal shutdown at 150 °C (typical junction temperature) and remains latched off until junction temperature falls to ~130 °C (150 °C − 20 °C hysteresis). During shutdown, the active discharge circuit is disabled, and Vout floats high until thermal recovery completes.
Can the CE pin of the NCV8570MN280R2G be left unconnected?
No - the CE pin must not be left floating. It has an internal 5 MΩ pull-down resistor, but floating operation may cause erratic enable/disable behavior due to noise coupling. For always-on operation, tie CE directly to Vin; for controlled enable, drive with clean logic-level signals referenced to the same GND.
NCV8570MN280R2G 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):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.205V @ 200mA
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 90 µA
- Current - Supply (Max):
- 220 µA
- PSRR:
- 80dB ~ 65dB (120Hz ~ 10kHz)
- 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:
- 6-DFN (2x2.2)
NCV8570MN280R2G FAQ
1.How can I place an order for NCV8570MN280R2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8570MN280R2G 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 NCV8570MN280R2G reliable?
The price and inventory of NCV8570MN280R2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8570MN280R2G is usually 5 days.
3.What payment methods are accepted for NCV8570MN280R2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8570MN280R2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8570MN280R2G?
NCV8570MN280R2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8570MN280R2G 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 NCV8570MN280R2G?
For technical support, including NCV8570MN280R2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8570MN280R2G requirements.
6.How does Aetrix verify that NCV8570MN280R2G is sourced from the original manufacturer or authorized distributors?
All NCV8570MN280R2G 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 NCV8570MN280R2G meets industry standards.
7.What is the process for return or replacement of NCV8570MN280R2G?
All NCV8570MN280R2G units undergo pre-shipment inspection (PSI). If there is an issue with NCV8570MN280R2G, 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 NCV8570MN280R2G part is unused and in its original packaging.
Return procedure for NCV8570MN280R2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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