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This device is designed to ensure the proper functioning of circuits by monitoring and resetting them when necessary

ISO14001 ISO9001 DUNS

Brands: Onsemi

Mfr.Part #: MAX809STRG

Datasheet: MAX809STRG Datasheet (PDF)

Package/Case: SOT23-3

Product Type: Supervisors

RoHS Status:

Stock Condition: 6,534 pcs, New Original

Warranty: 1 Year Ovaga Warranty - Find Out More

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MAX809STRG General Description

MAX809/NCV809 and MAX810 system supervisor circuits are specifically designed to ensure the reliable performance of digital systems by monitoring VCC and providing timely reset signals to the host processor as needed. These cost-effective devices eliminate the requirement for external components, simplifying system design and reducing overall costs. The reset output is activated within 10 µsec of VCC falling below the reset voltage threshold and remains active for a timeout period that is factory-trimmed after VCC rises above the reset threshold. Both the MAX810 and MAX809 are available in compact SOT-23 and SC-70 packages, making them suitable for space-constrained applications


  • Precise Power Monitoring
  • Accurate Voltage Regulation
  • Efficient Power Management
  • Reliable Overcurrent Protection
  • Safe Operating Margin
  • Fault Tolerant Design


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  • Health Trackers


Parameter Value Parameter Value
Status Active Compliance PbAHP
Package Type SOT-23-3 Case Outline 318-08
MSL Type 1 MSL Temp (°C) 260
Container Type REEL Container Qty. 3000
ON Target Y Voltages Monitored 1
VCC Max (V) 5.5 V(TO) Typ (V) 2.93
IQ Typ (µA) 0.5 Reset Active State Low
Reset Timer Yes Manual Reset No
Watchdog Timer No


Shipping Type Ship Fee Lead Time
DHL DHL $20.00-$40.00 (0.50 KG) 2-5 days
Fedex Fedex $20.00-$40.00 (0.50 KG) 2-5 days
UPS UPS $20.00-$40.00 (0.50 KG) 2-5 days
TNT TNT $20.00-$40.00 (0.50 KG) 2-5 days
EMS EMS $20.00-$40.00 (0.50 KG) 2-5 days
REGISTERED AIR MAIL REGISTERED AIR MAIL $20.00-$40.00 (0.50 KG) 2-5 days

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Terms of payment Hand Fee
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1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


  • Product

    Step1 :Product

  • Vacuum packaging

    Step2 :Vacuum packaging

  • Anti-static bag

    Step3 :Anti-static bag

  • Individual packaging

    Step4 :Individual packaging

  • Packaging boxes

    Step5 :Packaging boxes

  • bar-code shipping tag

    Step6 :bar-code shipping tag

All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

  • ESD
  • ESD

Part points

  • The MAX809STRG is a supervisory circuit that monitors power supply voltages in microcontroller and microprocessor systems. It resets the system when the supply voltage drops below a preset threshold, preventing system malfunction. It features a manual reset input and a watchdog timer for added system stability and reliability.
  • Equivalent

    Some equivalent products of MAX809STRG are LTC2937, MCP102, ADM809, and TPL5110. These chips are voltage supervisory circuits that monitor power supply voltages and provide reset signals to the microcontroller when necessary. They have similar features and functions to the MAX809STRG.
  • Features

    The MAX809STRG is a microprocessor supervisory circuit with an active-low, push-pull output that monitors power supply voltages and initiates a reset signal whenever the voltage falls below a preset threshold. It has a low quiescent current, wide operating voltage range, and is available in a small SOT23 package.
  • Pinout

    The MAX809STRG is a microprocessor reset circuit with an active low RESET output. It has a 3-pin SOT23 package and a typical voltage supply range of 1.0V to 5.0V. Pin 1 is the RESET output, pin 2 is GND, and pin 3 is VCC.
  • Manufacturer

    MAX809STRG is manufactured by Maxim Integrated, an American company that specializes in designing, manufacturing, and selling analog and mixed-signal integrated circuits. Maxim Integrated is known for its high-performance ICs for a variety of applications, including automotive, industrial, healthcare, and consumer electronics.
  • Application Field

    MAX809STRG is commonly used as a voltage supervisor in various electronic devices to monitor the power supply and ensure proper system operation. It is utilized in applications such as computer motherboards, industrial control systems, automotive electronics, and portable electronic devices to provide circuit protection and system reset functions.
  • Package

    The MAX809STRG chip is a voltage supervisor with a SOT-23-3 package type. It is in tape and reel form and has a size of approximately 5.3mm x 3.0mm x 1.1mm.

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