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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

onsemi NCV8570BSN25T1G

Name: NCV8570BSN25T1G
Brand: onsemi
SKU: NCV8570BSN25T1G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: NCV8570BSN25T1G

Manufacturer:: onsemi

Category:: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Package:: SOT-23-5 Thin, TSOT-23-5

Datasheet:: NCV8570BSN25T1G.pdf

Description:: IC REG LINEAR 2.5V 200MA 5TSOP

Quantity:: RFQ Add To RFQ list

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Inventory:2,500

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Product details

Overview

NCV8570BSN25T1G from onsemi is a 200 mA, 2.5 V fixed-output ultra-low-noise LDO voltage regulator in TSOP-5 package. It delivers 10 µV_RMS output noise (at 1.8 V), 82 dB PSRR at 1 kHz, and 85 mV dropout at 200 mA load - optimized for RF, audio, and automotive camera power rails where supply integrity is critical.

For engineers reviewing the NCV8570BSN25T1G datasheet, pinout, applications, or equivalent options, this page provides verified pin functions, automotive-grade thermal shutdown (150 °C trip), active discharge, and AEC-Q100-compliant performance data directly traceable to onsemi's Rev. 4 datasheet.

Technical Context

The NCV8570BSN25T1G uses a PMOS pass transistor architecture enabling low dropout and reverse-current blocking. Its BYP pin provides direct access to the bandgap reference node, allowing external 10–100 nF capacitors to suppress noise generation at source - a key differentiator from standard LDOs.

It integrates enable-controlled sleep mode (≤1 µA disable current), internal 5 MΩ pull-down on EN, and active discharge via 1 kΩ internal resistor. Thermal shutdown (150 °C trip / 135 °C reset) and current limiting (310 mA typ) operate independently of input voltage up to 5.5 V.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 2.5 V ±2.5% - stable across −40 °C to +125 °C junction temperature.
Max Output Current	200 mA continuous - supports noise-sensitive analog blocks without derating at 125 °C.
Output Noise	10 µV_RMS (10 Hz–100 kHz, V_OUT = 1.8 V, C_noise = 10 nF) - enables clean power for RF LNAs and ADC references.
PSRR	82 dB at 1 kHz - rejects switching noise from adjacent DC/DC converters in multi-rail systems.
Dropout Voltage	85 mV at 200 mA (V_OUT = 2.5 V) - allows operation from 3.3 V rail with ≥0.5 V headroom.
Quiescent Current	75 µA typ at 200 mA load - maintains efficiency in always-on automotive modules.
Enable Threshold	0.4 V (low) / 1.2 V (high) - compatible with 1.8 V and 3.3 V logic without level-shifting.

Pinout & Package

TSOP-5 package (Case 483), 2.9 mm × 1.6 mm footprint, exposed pad not present. Compatible with standard reflow profiles per J-STD-020.

Pin	Circuit Role	Design Meaning
1	IN	Main input supply (2.5–5.5 V); requires 1 µF ceramic decoupling to GND.
2	GND	Power ground - shared return for IN, OUT, and BYP; fused internally in TSOP-5.
3	EN	Logic-enable input; internal 5 MΩ pull-down ensures safe default-OFF state when floating.
4	BYP	Noise reduction node - connect 10–100 nF capacitor to GND to bypass bandgap reference noise.
5	OUT	Regulated 2.5 V output; stable with ≥1 µF ceramic capacitor (X5R/X7R).

Key Features

Feature	Design Value
Ultra-low noise	10 µV_RMS (10 Hz–100 kHz) - enables high-SNR signal chains in GPS receivers and camera ISPs.
Active discharge	Internal 1 kΩ discharge path - reduces V_OUT decay time below 10 ms for fast power sequencing.
AEC-Q100 qualified	Grade 1 (−40 °C to +125 °C) - certified for automotive infotainment and ADAS domain controllers.
Stable with low-ESR caps	Works with 1 µF X5R/X7R ceramics - eliminates need for tantalum or large electrolytics, saving PCB area.
Sleep-mode current	≤1 µA max disable current - meets <10 µA system standby budgets in telematics modules.

Applications

Automotive Camera Power	RF Front-End Biasing
Use Scenario: Powering image signal processors and CIS sensors in rear-view and lane-departure cameras. IC Role / Device Role / Timing Role: Primary 2.5 V analog rail regulator with fast transient response (<100 µs recovery) and sub-15 µV_RMS noise floor. Use Value: Prevents fixed-pattern noise and SNR degradation in 12-bit+ imaging pipelines under engine cranking conditions.	Use Scenario: Supplying low-noise bias to LNA stages and mixer ICs in satellite radio and cellular diversity receivers. IC Role / Device Role / Timing Role: Clean 2.5 V local supply decoupled from noisy digital domains via PSRR >80 dB at 1–10 MHz. Use Value: Enables >35 dB gain margin in 1.5–2.5 GHz bands without spurious emissions from supply coupling.
Portable Audio DAC Supply	Industrial Sensor Signal Chain
Use Scenario: Regulating power for stereo DACs and headphone amplifiers in portable DVD players and smart displays. IC Role / Device Role / Timing Role: Ultra-low-noise 2.5 V rail with <12 µV_RMS output (C_noise = 100 nF) and <0.1% THD+N impact. Use Value: Achieves >110 dB dynamic range without post-regulation filtering or oversized bypass caps.	Use Scenario: Powering precision op-amps and 24-bit sigma-delta ADCs in vibration monitoring and process control transmitters. IC Role / Device Role / Timing Role: Stable 2.5 V reference rail with <0.01%/V line regulation and <5 mV load regulation over 1–200 mA. Use Value: Eliminates supply-induced offset drift and improves DC accuracy to ±0.05% FS over temperature.

Automotive Camera Power

RF Front-End Biasing

Use Scenario: Powering image signal processors and CIS sensors in rear-view and lane-departure cameras.

IC Role / Device Role / Timing Role: Primary 2.5 V analog rail regulator with fast transient response (<100 µs recovery) and sub-15 µV_RMS noise floor.

Use Value: Prevents fixed-pattern noise and SNR degradation in 12-bit+ imaging pipelines under engine cranking conditions.

Use Scenario: Supplying low-noise bias to LNA stages and mixer ICs in satellite radio and cellular diversity receivers.

IC Role / Device Role / Timing Role: Clean 2.5 V local supply decoupled from noisy digital domains via PSRR >80 dB at 1–10 MHz.

Use Value: Enables >35 dB gain margin in 1.5–2.5 GHz bands without spurious emissions from supply coupling.

Portable Audio DAC Supply

Industrial Sensor Signal Chain

Use Scenario: Regulating power for stereo DACs and headphone amplifiers in portable DVD players and smart displays.

IC Role / Device Role / Timing Role: Ultra-low-noise 2.5 V rail with <12 µV_RMS output (C_noise = 100 nF) and <0.1% THD+N impact.

Use Value: Achieves >110 dB dynamic range without post-regulation filtering or oversized bypass caps.

Use Scenario: Powering precision op-amps and 24-bit sigma-delta ADCs in vibration monitoring and process control transmitters.

IC Role / Device Role / Timing Role: Stable 2.5 V reference rail with <0.01%/V line regulation and <5 mV load regulation over 1–200 mA.

Use Value: Eliminates supply-induced offset drift and improves DC accuracy to ±0.05% FS over temperature.

Equivalent & Alternatives

The following parts are listed as comparable options for similar LDO regulator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS7A2025PDQNR	200 mA, 2.5 V, 6.5 µV_RMS noise, but only 60 dB PSRR at 1 kHz and no BYP pin.	Lacks bandgap bypass capability - unsuitable for ultra-low-noise RF/audio where PSRR >80 dB is required above 500 Hz.	Select when lowest possible noise dominates and PSRR above 100 Hz is secondary; verify thermal derating at 125 °C.
NCP1117ST25T3G	800 mA, 2.5 V, 45 µV_RMS noise, TO-220/TO-263 package, no enable or BYP pin.	Higher noise and no enable/sleep mode - incompatible with automotive low-power standby requirements.	Choose only for cost-sensitive industrial applications where 200 mA current headroom and AEC-Q100 are not needed.

Compared with TPS7A2025PDQNR and NCP1117ST25T3G, the NCV8570BSN25T1G uniquely combines automotive qualification, active discharge, and BYP-pin noise suppression - making it the only option among the three that meets full AEC-Q100 Grade 1 specs while delivering <10 µV_RMS noise and >80 dB PSRR through 1 kHz.

Availability

NCV8570BSN25T1G is available at Aetrix Electronics and suitable for automotive camera modules, RF front-end biasing, portable audio DAC supplies, and industrial sensor signal chains requiring stable component supply with AEC-Q100 compliance and long-term lifecycle support.

Supply support for NCV8570BSN25T1G 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 supplier delivering energy-efficient silicon solutions for automotive, industrial, cloud, medical, and IoT applications - with leadership in power management, imaging, and automotive electronics.

The NCV8570B series was designed specifically for automotive-grade ultra-low-noise power delivery in ADAS, infotainment, and telematics systems - emphasizing PSRR, noise floor, thermal robustness, and enable-controlled sequencing.

FAQ

What is the maximum input voltage rating for the NCV8570BSN25T1G?

The NCV8570BSN25T1G supports an absolute maximum input voltage of 6 V. Its recommended operating range is 2.5 V to 5.5 V, ensuring compatibility with common 3.3 V and 5 V system rails while maintaining 85 mV dropout at full 200 mA load for the 2.5 V output version. Exceeding 6 V risks permanent damage per the Absolute Maximum Ratings table.

Does the NCV8570BSN25T1G require an external capacitor on the BYP pin?

Yes - the NCV8570BSN25T1G requires a 10–100 nF ceramic capacitor between BYP and GND to achieve its specified 10 µV_RMS noise performance. Omitting this capacitor increases output noise by 2–3×, as confirmed in Figures 18–21 of the datasheet. Values below 10 nF risk turn-on overshoot; values above 100 nF increase turn-on time without meaningful noise improvement.

How does the enable function behave during power-up for the NCV8570BSN25T1G?

The NCV8570BSN25T1G features an internal 5 MΩ pull-down resistor on the EN pin, ensuring default-OFF behavior at power-up if EN is left unconnected. To guarantee reliable startup, tie EN to IN (or a logic-high rail ≥1.2 V) after input voltage stabilizes. The device achieves 98% of 2.5 V output in ≤4.4 ms with 100 nF BYP capacitance, as derived from Equation 1 in the Applications Information section.

Is the NCV8570BSN25T1G pin-compatible with other variants in the NCV8570B family?

No - the NCV8570BSN25T1G (TSOP-5) is not pin-compatible with the DFN6 variant (e.g., NCV8570BSD25T1G). While both share identical electrical functionality and pin naming (IN, GND, EN, BYP, OUT), the TSOP-5 places EN on pin 3 and BYP on pin 4, whereas the DFN6 places EN on pin 1 and BYP on pin 6. PCB layout must match the specific package variant ordered.

What protection features are integrated into the NCV8570BSN25T1G?

The NCV8570BSN25T1G integrates current limiting (310 mA typical), thermal shutdown (150 °C trip, 135 °C reset), active discharge (1 kΩ internal path), and reverse-current blocking via its PMOS pass element. All protections operate across the full −40 °C to +125 °C junction range and require no external components - validated per AEC-Q100 stress testing protocols.

NCV8570BSN25T1G Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: SOT-23-5 Thin, TSOT-23-5

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:: 5-TSOP

NCV8570BSN25T1G FAQ

1.How can I place an order for NCV8570BSN25T1G through Aetrix?

Please submit a Request for Quotation (RFQ) for NCV8570BSN25T1G 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 NCV8570BSN25T1G reliable?

The price and inventory of NCV8570BSN25T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8570BSN25T1G is usually 5 days.

3.What payment methods are accepted for NCV8570BSN25T1G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8570BSN25T1G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for NCV8570BSN25T1G?

NCV8570BSN25T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your NCV8570BSN25T1G 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 NCV8570BSN25T1G?

For technical support, including NCV8570BSN25T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8570BSN25T1G requirements.

6.How does Aetrix verify that NCV8570BSN25T1G is sourced from the original manufacturer or authorized distributors?

All NCV8570BSN25T1G 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 NCV8570BSN25T1G meets industry standards.

7.What is the process for return or replacement of NCV8570BSN25T1G?

All NCV8570BSN25T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCV8570BSN25T1G, 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 NCV8570BSN25T1G part is unused and in its original packaging.

Return procedure for NCV8570BSN25T1G:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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