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onsemi NCV8570BMN250R2G
- Part No.:
- NCV8570BMN250R2G
- Manufacturer:
- onsemi
- Package:
- 6-VDFN Exposed Pad
- Datasheet:
-
NCV8570BMN250R2G.pdf
- Description:
- IC REG LINEAR 2.5V 200MA 6DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,935
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Product details
Overview
NCV8570BMN250R2G from onsemi is an automotive-grade, 200 mA ultra-low-noise LDO voltage regulator with 2.5 V fixed output, 10 µVRMS noise (typ. at 1.8 V), 82 dB PSRR at 1 kHz, and DFN6 2×2.2 mm package. It delivers stable power to noise-sensitive RF, audio, and camera modules in ADAS and infotainment systems.
For engineers reviewing the NCV8570BMN250R2G datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q100 qualification, active discharge circuit, 75 µA ground current at full load, and compatibility with 1 µF ceramic output capacitors - critical for space-constrained automotive PCBs.
Technical Context
The NCV8570BMN250R2G uses a PMOS pass transistor architecture enabling low dropout (110 mV at 200 mA, VOUT = 2.5 V) and reverse-current blocking. Its dedicated 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 thermal shutdown (150 °C trip, 135 °C reset), current limiting (310 mA typ.), and logic-level enable control with internal 5 MΩ pull-down. The device operates across −40 °C to +125 °C and remains stable with 1 µF X5R/X7R ceramic output capacitors and ESR as low as 10 mΩ.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5 V ±2.5% - ensures precise biasing for analog sensors and RF front-ends without external feedback. |
| Max Output Current | 200 mA continuous - sufficient for powering single-core microcontrollers, image signal processors, or GPS receivers. |
| Output Noise | 10 µVRMS (10 Hz–100 kHz, VOUT = 1.8 V, Cnoise = 10 nF) - enables clean supply for high-SNR audio codecs and RF synthesizers. |
| PSRR | 82 dB at 1 kHz - rejects ripple from switching DC/DC converters upstream, preserving signal integrity in mixed-signal systems. |
| Dropout Voltage | 110 mV at 200 mA (VOUT = 2.5 V) - supports operation down to VIN = 2.61 V, extending battery runtime in 3.3 V rail systems. |
| Ground Current | 75 µA at 200 mA load - minimizes quiescent power loss in always-on automotive modules like telematics or CAN gateways. |
| Enable Threshold | 0.4 V (low) / 1.2 V (high) - compatible with 1.8 V and 3.3 V logic families for seamless system-level power sequencing. |
Pinout & Package
NCV8570BMN250R2G is housed in a thermally enhanced DFN6 package (2 mm × 2.2 mm, 0.75 mm height) with exposed EPAD for improved heat dissipation. Pin 2, Pin 5, and EPAD are internally fused to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (EN) | Enable input | Logic-controlled ON/OFF; internal 5 MΩ pull-down ensures safe default-off state when unconnected. |
| 2, 5, EPAD (GND) | Power ground | Fused GND terminals reduce impedance and improve thermal performance; EPAD must be soldered to PCB ground plane. |
| 3 (IN) | Input voltage | Accepts 2.5–5.5 V input; requires ≥1 µF ceramic capacitor to suppress line transients and trace inductance effects. |
| 4 (BYP) | Noise reduction | Connects to bandgap reference; 10–100 nF capacitor here reduces integrated output noise by up to 40%. |
| 6 (OUT) | Regulated output | Delivers stable 2.5 V; supports fast load transients (≤100 µs recovery) with 1 µF output capacitance. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low noise | 10 µVRMS (10 Hz–100 kHz) - enables use in high-fidelity audio amplifiers and RF LNAs without additional filtering. |
| Active discharge | Internal 1 kΩ discharge path via EN deactivation - ensures rapid VOUT ramp-down (<5 ms) for safe power sequencing in multi-rail systems. |
| AEC-Q100 qualified | Grade 1 (−40 °C to +125 °C) - certified for engine bay, infotainment, and ADAS applications requiring automotive reliability. |
| Stable with small ceramics | Works with ≥1 µF X5R/X7R capacitors - eliminates need for bulky tantalum or electrolytic caps, saving board area and cost. |
| Low sleep current | ≤1 µA disable current - meets ISO 16750-2 quiescent current requirements for always-on vehicle networks. |
Applications
| Camera for Lane Change Detection | GPS Systems |
|---|---|
|
Use Scenario: Powering CMOS image sensor and ISP in rear-view or side-mirror camera modules operating in automotive environments. IC Role / Device Role / Timing Role: Provides ultra-clean 2.5 V bias to analog front-end and PLL circuits, minimizing clock jitter and image noise. Use Value: 10 µVRMS noise and 82 dB PSRR prevent horizontal banding and color distortion under engine EMI conditions. |
Use Scenario: Supplying GNSS RF receiver ICs and baseband processors in telematics control units. IC Role / Device Role / Timing Role: Delivers low-noise 2.5 V reference for LNA and frequency synthesizer, improving carrier-to-noise ratio (C/N0). Use Value: Stable regulation across wide temperature range (−40 °C to +125 °C) ensures consistent time-to-first-fix (TTFF) during cold starts. |
| Satellite Radio Receivers | Portable DVD Entertainment Systems |
|
Use Scenario: Powering digital demodulator and audio DAC in HD Radio tuners embedded in head units. IC Role / Device Role / Timing Role: Supplies regulated 2.5 V to sensitive audio conversion stages, rejecting ripple from shared 5 V buck converter. Use Value: 82 dB PSRR at 1 kHz suppresses switching artifacts that would otherwise manifest as audible "whine" in speakers. |
Use Scenario: Providing main supply to video decoder ASIC and display driver in rear-seat entertainment systems. IC Role / Device Role / Timing Role: Acts as primary LDO for 2.5 V core logic, supporting fast load transients during video frame bursts. Use Value: 200 mA capability and <100 µs transient response prevent brownouts during MPEG-2 decode peaks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV70725PDQNR | 200 mA, 2.5 V, 25 µVRMS noise, SOT-563 package, no BYP pin | Lacks noise-bypass capability and AEC-Q100 qualification; rated only to 85 °C ambient | Use where cost and footprint are prioritized over automotive qualification and ultra-low noise. |
| NCP1117ST25T3G | 800 mA, 2.5 V, 45 µVRMS noise, SOT-223 package, no enable or BYP | Higher current but higher noise and no active discharge; not AEC-Q100 qualified | Select when higher output current is needed and thermal design allows larger SOT-223 footprint. |
Compared with TLV70725PDQNR and NCP1117ST25T3G, the NCV8570BMN250R2G uniquely combines AEC-Q100 Grade 1 operation, 10 µVRMS noise, and BYP-pin controllability - making it the only choice for safety-critical, noise-sensitive automotive domains where PSRR and transient immunity are non-negotiable.
Availability
NCV8570BMN250R2G is available at Aetrix Electronics and suitable for automotive ADAS cameras, GPS receivers, satellite radio modules, and infotainment systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for NCV8570BMN250R2G 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 deep expertise in power management and signal integrity solutions.
The NCV8570B product line was designed specifically for automotive electronics demanding ultra-low noise, high PSRR, and AEC-Q100 compliance - targeting RF, imaging, and precision analog subsystems in next-generation vehicles.
FAQ
What is the maximum input voltage rating for the NCV8570BMN250R2G?
The NCV8570BMN250R2G 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 under all conditions including load dump transients.
Does the NCV8570BMN250R2G require an external bypass capacitor on the BYP pin?
Yes - the NCV8570BMN250R2G requires a minimum 10 nF ceramic capacitor between BYP and GND to achieve specified 10 µVRMS noise performance. Values below 10 nF risk turn-on overshoot; 100 nF yields lowest noise but increases turn-on time to ~4.4 ms at 2.5 V output. The capacitor must be placed close to the BYP pin with minimal trace length.
Is the NCV8570BMN250R2G pin-compatible with other variants in the NCV8570B family?
Yes - all NCV8570B DFN6 variants (including NCV8570BMN250R2G, NCV8570BMN330R2G, etc.) share identical pinout, package dimensions, and thermal pad layout. Only the output voltage and marking differ; no PCB redesign is needed when swapping between 1.8 V, 2.5 V, 2.8 V, 3.0 V, or 3.3 V versions.
How does the active discharge function work in the NCV8570BMN250R2G?
When the EN pin is pulled low, the NCV8570BMN250R2G activates an internal 1 kΩ discharge path from OUT to GND. This rapidly discharges the output capacitor (e.g., 1 µF to <100 mV in <5 ms), preventing unintended wake-up or latch-up in downstream logic. The feature is automatic and requires no external components.
What is the thermal resistance (RJA) of the NCV8570BMN250R2G in its DFN6 package?
The NCV8570BMN250R2G in DFN6 package has a junction-to-ambient thermal resistance (RJA) of 110 °C/W when mounted on a standard 1 oz FR4 PCB with 645 mm² copper area. With proper thermal vias under the EPAD, RJA can be reduced to ~60 °C/W, enabling full 200 mA operation at +105 °C ambient.
NCV8570BMN250R2G 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):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.23V @ 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)
NCV8570BMN250R2G FAQ
1.How can I place an order for NCV8570BMN250R2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8570BMN250R2G 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 NCV8570BMN250R2G reliable?
The price and inventory of NCV8570BMN250R2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8570BMN250R2G is usually 5 days.
3.What payment methods are accepted for NCV8570BMN250R2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8570BMN250R2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8570BMN250R2G?
NCV8570BMN250R2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8570BMN250R2G 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 NCV8570BMN250R2G?
For technical support, including NCV8570BMN250R2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8570BMN250R2G requirements.
6.How does Aetrix verify that NCV8570BMN250R2G is sourced from the original manufacturer or authorized distributors?
All NCV8570BMN250R2G 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 NCV8570BMN250R2G meets industry standards.
7.What is the process for return or replacement of NCV8570BMN250R2G?
All NCV8570BMN250R2G units undergo pre-shipment inspection (PSI). If there is an issue with NCV8570BMN250R2G, 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 NCV8570BMN250R2G part is unused and in its original packaging.
Return procedure for NCV8570BMN250R2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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