CAT809STBI-GT3

The CAT809STBI-GT3 is a microprocessor (μP) supervisory circuit from ON Semiconductor, designed to monitor system voltage and ensure stable operation.
### Key Features:
- Voltage Monitoring: Monitors 3.3V power supplies with a fixed threshold.
- Manual Reset Input: Supports an external push-button reset.
- Active-Low Reset Output: Asserts a reset signal when voltage drops below the threshold.
- Low Quiescent Current: Consumes minimal power (~5μA typical).
- Small Package: Available in a SOT-23-3 form factor.
### Applications:
- Embedded systems
- Automotive electronics
- Industrial controls
- Battery-powered devices
This IC ensures reliable system boot-up and shutdown, preventing malfunctions due to unstable power.

Equivalent products to the CAT809STBI-GT3 (a voltage supervisor/monitor) include:
- MAX809SEUR-T (Maxim Integrated)
- TPS3823-33DBVR (Texas Instruments)
- MCP809T-300I/TT (Microchip)
- ADM809ARTZ (Analog Devices)
These are 3V voltage supervisors with similar reset thresholds (~2.93V) and push-pull outputs. Check datasheets for exact compatibility.

The CAT809STBI-GT3 is manufactured by ON Semiconductor, a global semiconductor company specializing in power management, analog, and sensor technologies.
ON Semiconductor (now known as onsemi) is a Fortune 500 company known for energy-efficient innovations in automotive, industrial, and consumer electronics. They produce a wide range of ICs, including voltage supervisors like the CAT809STBI-GT3, which monitors system voltages to ensure stable operation.
Key details:
- Manufacturer: ON Semiconductor (onsemi)
- Type: Semiconductor company
- Focus: Power management, analog, sensors, and connectivity solutions
For more details, visit their official website.

The CAT809STBI-GT3 is a voltage supervisor/microprocessor reset IC, commonly used in:
1. Embedded Systems – Ensures stable operation by monitoring power supply and resetting microcontrollers during voltage drops.
2. Consumer Electronics – Used in devices like smart TVs, routers, and IoT gadgets for reliable power management.
3. Industrial Controls – Protects PLCs and automation systems from voltage fluctuations.
4. Automotive Electronics – Enhances reliability in infotainment and control modules.
5. Medical Devices – Ensures safe operation in critical equipment.
Its key features include low power consumption, precise voltage monitoring, and a manual reset option, making it ideal for applications requiring robust power supervision.

The CAT809STBI-GT3 is a voltage supervisor IC available in a SOT-23-3 package. This small, surface-mount package has three pins and is commonly used for space-constrained applications. It monitors system voltage and provides a reset signal when the voltage falls below a threshold. The SOT-23-3 package is compact, making it suitable for portable and embedded systems.