NCP303LSN09T1G
Low Voltage Detection Circuit for Processor Systems
Inventory:5,736
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Part Number : NCP303LSN09T1G
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Package/Case : TSOP-5
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Manufacturer : Onsemi
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Components Classification : Supervisors
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Datesheet : NCP303LSN09T1G DataSheet (PDF)
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Series : NCP303
Overview of NCP303LSN09T1G
The NCP303LSN09T1G is a processor supervisor optimized for high-speed and low-voltage operations, providing excellent performance for analog and digital signal switching.
Pinout
The NCP303LSN09T1G pinout refers to the configuration and function of each pin in its TSOP-5 package. This package typically includes a diagram showing the layout of the pins when viewed from the top down with pins named sequentially. Each pin on the NCP303LSN09T1G has a specific role such as power supply input, ground connection, or signal interface. The pinout details are crucial for integrating this component into a circuit as they ensure correct connections for optimal device performance. Designers and engineers must refer to the datasheet provided by the manufacturer to get accurate information regarding each pin's function and electrical characteristics.
Features
- Low Quiescent Current Consumption: The NCP303LSN09T1G has a low quiescent current consumption, making it suitable for battery-powered devices or applications where power efficiency is crucial.
- Adjustable Threshold Voltage: This feature allows the user to adjust the threshold voltage of the supervisor to suit their specific application requirements.
- Wide Input Voltage Range: The NCP303LSN09T1G has a wide input voltage range, making it suitable for use in various applications where the power supply voltage may vary.
- Accurate Voltage Reference: This feature provides an accurate voltage reference for the supervisor, ensuring reliable operation and minimizing errors.
- Low Temperature Drift: The NCP303LSN09T1G has a low temperature drift, making it suitable for use in applications where temperature variations may occur.
- Low Dropout Voltage: This feature allows the supervisor to operate with a low dropout voltage, minimizing power consumption and heat generation.
Applications
- LED Lighting: The NCP303LSN09T1G is suitable for use in LED lighting applications where high-speed and low-voltage operations are required.
- Power Banks: This component can be used in power banks to ensure reliable operation of the charging circuit.
- Printers: The NCP303LSN09T1G is suitable for use in printers where high-speed and low-voltage operations are required.
- Smartphones: This component can be used in smartphones to ensure reliable operation of the charging circuit.
- Computers: The NCP303LSN09T1G is suitable for use in computers where high-speed and low-voltage operations are required.
- Tablets: This component can be used in tablets to ensure reliable operation of the charging circuit.
Advantages and Disadvantages
Advantages
- High-Speed Operation: The NCP303LSN09T1G is designed for high-speed operations, making it suitable for use in applications where fast switching times are required.
- Low-Voltage Operations: This component can operate at low voltages, making it suitable for use in battery-powered devices or applications where power efficiency is crucial.
- Accurate Voltage Reference: The NCP303LSN09T1G provides an accurate voltage reference, ensuring reliable operation and minimizing errors.
Disadvantages
- Sensitive to Noise: The NCP303LSN09T1G is sensitive to noise, making it necessary to ensure proper shielding and filtering in the application circuit.
- Requires External Components: This component requires external components such as resistors and capacitors to function properly, which can add complexity to the application circuit.
Equivalents
The NCP303LSN09T1G has several equivalents that can be used in its place:
- NCP302LSN09T1G: This component is similar to the NCP303LSN09T1G but has a slightly different pinout and operating characteristics.
- MAX809: The MAX809 is a supervisor IC that can be used in place of the NCP303LSN09T1G, although it may have slightly different operating characteristics.
- LM2931: The LM2931 is a voltage regulator IC that can be used to implement a similar function to the NCP303LSN09T1G, although it may require additional components and circuitry.
Frequently Asked Questions
Q: What is the operating temperature range of the NCP303LSN09T1G?
A: The operating temperature range of the NCP303LSN09T1G is -40°C to 125°C.
Q: What is the maximum input voltage for the NCP303LSN09T1G?
A: The maximum input voltage for the NCP303LSN09T1G is 9V.
Q: Can the NCP303LSN09T1G be used in a battery-powered device?
A: Yes, the NCP303LSN09T1G can be used in a battery-powered device due to its low quiescent current consumption and ability to operate at low voltages.
Q: What is the recommended PCB layout for the NCP303LSN09T1G?
A: The recommended PCB layout for the NCP303LSN09T1G includes a ground plane, power supply decoupling capacitors, and proper shielding to minimize noise and electromagnetic interference.
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
Product Category | Supervisory Circuits | RoHS | Details |
Type | Voltage Detectors | Mounting Style | SMD/SMT |
Package / Case | TSOP-5 | Threshold Voltage | 900 mV |
Number of Inputs Monitored | 1 Input | Output Type | Active Low, Open Drain |
Manual Reset | No Manual Reset | Watchdog Timers | No Watchdog |
Battery Backup Switching | Backup | Reset Delay Time | Programmable |
Supply Voltage - Max | 10 V | Minimum Operating Temperature | - 40 C |
Maximum Operating Temperature | + 85 C | Accuracy | 2 % |
Series | NCP303 | Brand | onsemi |
Operating Supply Current | 500 nA | Overvoltage Threshold | 918 mV |
Product Type | Supervisory Circuits | Factory Pack Quantity | 3000 |
Subcategory | PMIC - Power Management ICs | Supply Voltage - Min | 800 mV |
Undervoltage Threshold | 882 mV | Unit Weight | 0.000497 oz |
Warranty & Returns
Warranty, Returns, and Additional Information
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QA & Return Policy ?
Parts Quality Guarantee: 365 days
Returns for refund: within 90 days
Returns for Exchange: within 90 days
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Shipping and Package ?
Shipping:For example, FedEx, JP, UPS, DHL,SAGAWA, or YTC.
Parts Packaging Guarantee: Featuring 100% ESD anti-static protection, our packaging incorporates high toughness and superior buffering capabilities.
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Payment ?
For example, channels like VISA,MasterCard,Western Union,PayPal,MoneyGram,Rakuten Pay and more.
If you have specific payment channel preferences or requirements, please get in touch with our sales team for assistance.

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NCP303LSN09T1G
Low Voltage Detection Circuit for Processor Systems
Inventory:
5,736
Warranty & Returns
After Sales Service
What after-sales service can be provided?
We provide an extended quality assurance period of 365 days for all components we offer. If a return or exchange becomes essential, kindly adhere to these guidelines:
·Initiate the request within 90 days after the item's shipment date.
·Coordinate the return or exchange with our team.
·Keep the items in their original condition as delivered.
·Please be aware that the feasibility of returning or exchanging items is contingent upon an evaluation of their actual state upon return.
Shipping
What channels of transportation of goods does the website support?
We usually send out our orders during business days using FedEx, SF, UPS, or DHL. We're also here to assist with alternative shipping options. Should you require additional information about shipping particulars or expenses, please don't hesitate to get in touch with us.







Package
How to ensure that the parts will be intact during transportation?
The items we ship will be packaged in anti-static bags, ensuring ESD anti-static protection, while the outer packaging boasts exceptional durability and sealing. We offer packaging options like Tape and Reel, Cut Tape, Tube, or Tray to suit your needs.




Payment
Which payment methods can be used to pay for goods
Accepted payment methods commonly encompass VISA, MasterCard, UnionPay, Western Union, PayPal, and various other options.
Should you have a particular payment preference or wish to seek information on rates and other specifics, please feel free to reach out to us.




