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onsemi NCV571SN08T1G
- Part No.:
- NCV571SN08T1G
- Manufacturer:
- onsemi
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
NCV571SN08T1G.pdf
- Description:
- IC REG LINEAR 0.8V 150MA 5TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,469
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Product details
Overview
NCV571SN08T1G from onsemi is an automotive-grade, fixed-output 0.8 V low-dropout linear regulator with 150 mA output current capability, ultra-low 4.0 µA typical quiescent current, ±3% output voltage accuracy at 25°C, and operation across −40°C to +125°C ambient temperature. It integrates PMOS pass transistor, thermal shutdown, current limit, and enable control - designed for battery-powered instrumentation and automotive infotainment power rails.
For engineers reviewing the NCV571SN08T1G datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q100 qualification, TSOP-5 package compatibility, 730 mV typical dropout at 10 mA, 0.1 µF minimum ceramic output capacitance support, and enable logic threshold (1.3 V high, 0.3 V low).
Technical Context
The NCV571SN08T1G implements a PMOS-based LDO architecture with internal voltage reference, error amplifier, and protection circuitry - enabling stable regulation without external compensation. Its enable input supports active-high logic control with defined turn-on/turn-off thresholds, and it operates with input voltages up to 12 V while maintaining regulation down to 0.8 V output.
Thermal protection activates at +150°C junction temperature, and current limiting caps output at 160–600 mA depending on output voltage and load condition. The device is specified for automotive ambient range (−40°C to +125°C) and meets AEC-Q100 Grade 1 requirements with PPAP capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 0.8 V ±3% at 25°C; ±4% over full automotive temperature range |
| Max Input Voltage | 12 V - supports wide-input battery systems including 9–12 V nominal automotive rails |
| Quiescent Current | 4.0 µA typical - enables multi-year battery life in always-on automotive sensors |
| Dropout Voltage | 730 mV typical at 10 mA - allows regulation from 1.53 V input for 0.8 V output |
| Output Current | 150 mA continuous - sufficient for powering microcontrollers, CAN transceivers, or sensor signal chains |
| Enable Threshold | 1.3 V (logic high turn-on), 0.3 V (logic low turn-off) - compatible with 1.8 V/3.3 V GPIO interfaces |
| Operating Temp | −40°C to +125°C ambient - qualified per AEC-Q100 Grade 1 for under-hood and cabin applications |
Pinout & Package
NCV571SN08T1G is housed in a Pb-free TSOP-5 surface-mount package (Case 483, 3.00 × 1.50 × 0.95 mm), optimized for space-constrained automotive PCBs with exposed pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Vout | Regulated 0.8 V output - connects directly to load; requires ≥0.1 µF ceramic decoupling capacitor |
| 2 | GND | Power ground reference - must be low-impedance connection to system ground plane |
| 3 | Enable | Active-high digital control input - pull to Vin for always-on operation; leave unconnected only if tied externally |
| 4 | NC | No internal connection - recommended to connect to GND for mechanical stability and noise reduction |
| 5 | Vin | Positive input supply - accepts 0.8 V to 12 V; must be decoupled with ≥0.1 µF capacitor near pin |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ | 4.0 µA typical - reduces standby power loss in ignition-off vehicle modules |
| AEC-Q100 Qualified | Grade 1 (−40°C to +125°C) with PPAP documentation support - suitable for ASIL-B relevant subsystems |
| Stable with Ceramic Caps | 0.1 µF minimum output capacitance - eliminates need for tantalum or aluminum electrolytic capacitors |
| Integrated Protection | Thermal shutdown + current limit - prevents damage during overload or short-circuit conditions |
| Low Dropout | 730 mV typical at 10 mA - enables efficient regulation from partially discharged Li-ion or lead-acid batteries |
Applications
| Automotive Body Control Module | Infotainment Power Rail |
|---|---|
Use Scenario: Powering microcontroller peripherals (CAN, LIN, ADC) in door module ECUs requiring low-power sleep mode. IC Role / Device Role / Timing Role: Primary 0.8 V LDO supplying core logic voltage for 32-bit MCU subsystems. Use Value: 4.0 µA quiescent current extends battery drain time during vehicle off-state, meeting OEM <100 µA total module leakage targets. | Use Scenario: Regulating auxiliary 0.8 V rail for audio DSP or display interface ICs in head unit designs. IC Role / Device Role / Timing Role: Secondary low-noise LDO delivering clean, stable voltage to sensitive analog front-ends. Use Value: ±3% output accuracy and low PSRR ensure consistent audio processing performance across temperature and line variations. |
| ADAS Camera Sensor Bias | Telematics GPS Module |
Use Scenario: Providing precise 0.8 V bias to image sensor analog blocks in rear-view or surround-view cameras. IC Role / Device Role / Timing Role: Dedicated low-drift LDO ensuring stable pixel response and reduced thermal noise in CMOS image sensors. Use Value: 100 ppm/°C output voltage temperature coefficient minimizes gain drift across −40°C to +125°C operating range. | Use Scenario: Supplying 0.8 V core voltage to GNSS receiver SoCs in cellular-connected telematics control units. IC Role / Device Role / Timing Role: Low-noise, enable-controlled LDO enabling rapid power cycling of GPS engine during location polling intervals. Use Value: Enable pin with 1.3 V logic threshold allows direct interfacing with 1.8 V host processor GPIO without level-shifting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8170ASN080T1G | Higher 250 mA output, 2.5 µA IQ, same TSOP-5 package and 0.8 V output | Better suited for higher-current loads like multi-core MCUs; slightly lower dropout (500 mV) | Select when >150 mA load margin or lower dropout is required; pinout identical but enable logic differs (active-low) |
| TLV73308PDBVR | 0.8 V, 300 mA, 35 µA IQ, SOT-23-5 package; no AEC-Q100 qualification | Lacks automotive qualification and thermal robustness; higher IQ increases standby leakage | Consider only for non-automotive industrial applications where cost and footprint are prioritized over qualification and ultra-low IQ |
Compared with NCV571SN08T1G, NCV8170ASN080T1G offers higher current and lower dropout in identical packaging but uses active-low enable, while TLV73308PDBVR provides greater output current in smaller SOT-23-5 but lacks AEC-Q100 compliance and consumes 9× more quiescent current - making NCV571SN08T1G optimal for automotive modules demanding ultra-low standby power and qualification assurance.
Availability
NCV571SN08T1G is available at Aetrix Electronics and suitable for automotive body electronics, infotainment systems, and ADAS camera modules requiring stable component supply with AEC-Q100 traceability and long-term lifecycle support.
Supply support for NCV571SN08T1G 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 - focused on enabling sustainable technology innovation.
The NCV571 series belongs to onsemi's automotive-qualified analog power management portfolio, engineered specifically for low-power, high-reliability voltage regulation in harsh-temperature vehicle subsystems.
FAQ
What is the maximum input voltage rating for the NCV571SN08T1G?
The NCV571SN08T1G has a maximum input voltage rating of 12 V, as specified in its Absolute Maximum Ratings table. This allows it to operate across standard automotive battery ranges (including cold-crank and load-dump transients when paired with appropriate front-end protection). Exceeding 12 V may cause permanent damage, and operation above 12 V is not guaranteed even for transient events.
Does the NCV571SN08T1G require an external capacitor on the Enable pin?
No, the NCV571SN08T1G does not require an external capacitor on the Enable pin. The Enable input is CMOS-compatible with defined logic thresholds (1.3 V high, 0.3 V low) and internal hysteresis. If unused, the pin must be connected to Vin - floating the Enable pin is not permitted and may cause erratic regulation or increased quiescent current in the NCV571SN08T1G.
Is the NCV571SN08T1G pin-compatible with other devices in the NCP571/NCV571 family?
Yes, the NCV571SN08T1G shares identical TSOP-5 pinout and electrical behavior with all NCP571SNxxT1G and NCV571SNxxT1G variants (e.g., NCV571SN10T1G, NCP571SN09T1G). Output voltage is the only functional difference between these TSOP-5 versions; all share the same pin functions, enable logic, protection features, and thermal characteristics - enabling drop-in replacement within the same package variant.
What is the minimum output capacitance required for stable operation of the NCV571SN08T1G?
The NCV571SN08T1G requires a minimum output capacitance of 0.1 µF, which can be either ceramic or tantalum. The device is internally compensated and remains stable across ESR values from a few milliohms up to 3 Ω. Larger capacitance improves load transient response and noise rejection but is not required for basic stability - confirming that 0.1 µF ceramic placement near the Vout pin satisfies the NCV571SN08T1G's stability requirements.
How does the thermal shutdown feature operate in the NCV571SN08T1G?
The NCV571SN08T1G incorporates junction temperature sensing with thermal shutdown activation at +150°C. When this threshold is exceeded, the device disables the PMOS pass transistor and forces Vout to 0 V until junction temperature falls below the hysteresis threshold (~140°C). This protection is fully internal and requires no external components - ensuring safe operation during sustained overload or poor PCB thermal design in automotive environments where the NCV571SN08T1G is deployed.
NCV571SN08T1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 12V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.85V @ 10mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 1 µA
- Current - Supply (Max):
- 8 µA
- PSRR:
- -
- 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
NCV571SN08T1G FAQ
1.How can I place an order for NCV571SN08T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV571SN08T1G 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 NCV571SN08T1G reliable?
The price and inventory of NCV571SN08T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV571SN08T1G is usually 5 days.
3.What payment methods are accepted for NCV571SN08T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV571SN08T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV571SN08T1G?
NCV571SN08T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV571SN08T1G 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 NCV571SN08T1G?
For technical support, including NCV571SN08T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV571SN08T1G requirements.
6.How does Aetrix verify that NCV571SN08T1G is sourced from the original manufacturer or authorized distributors?
All NCV571SN08T1G 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 NCV571SN08T1G meets industry standards.
7.What is the process for return or replacement of NCV571SN08T1G?
All NCV571SN08T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCV571SN08T1G, 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 NCV571SN08T1G part is unused and in its original packaging.
Return procedure for NCV571SN08T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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