The CAT803STBI-GT3 is a power supply supervisor designed to monitor voltage levels in digital systems. It features an open-drain active LOW reset output, which asserts a reset signal when the power supply voltage falls below a specified threshold and remains asserted for at least 140 ms after the voltage rises above that threshold. This device is suitable for applications requiring precision monitoring of power supplies at various levels, including +5.0 V, +3.3 V, +3.0 V, and +2.5 V, with custom reset threshold options available. The CAT803 operates within an industrial temperature range of -40¬8C to +85¬8C and has a low power supply current of 6 ¬µA. It is available in compact SOT-23 and SC-70 packages, making it suitable for space-constrained applications. The device is also RoHS compliant and halogen-free. It is commonly used in computers, servers, laptops, and embedded control systems. However, it is important to note that this part is marked as obsolete, which may affect availability for future projects.
Manufacturer: ON Semiconductor
Win Source Part Number: 121946-CAT803STBI-GT
Packaging: Reel - TR
Type: Simple Reset/Power-On Reset
Mounting: SMD (SMT)
Output: Open Drain or Open Collector
Reset: Active Low
Number of Voltages Monitored: 1
Reset Timeout: 140 ms Minimum
Voltage - Threshold: 2.93V
Family Name: CAT803
Categories: Integrated Circuits
Status: Obsolete(EOL)
Temperature Range - Operating: -40°C to 85°C (TA)
Case / Package: SOT-23-3
Alternative Parts (Cross-Reference): TLV803SDBZR; TLV803SDBZT; ADM6328-31ARTZ-R7; ADM6328-30ARTZ-R7;
Introduction Date: October 29, 2003
ECCN: EAR99
Country of Origin: Thailand
Estimated EOL Date: Obsolete / End of life
Halogen Free: Compliant
Is this a common-used part?: Yes
Popularity: High
Fake Threat In the Open Market: 29 pct.
Supply and Demand Status: Balance
Application Field: Used in Computers & Computer Peripherals, Portable Devices
Voltage Supervisor IC, 2.93V Reset, Active Low, SOT-23 Product overview: CAT803STBI-GT3 from onsemi is a Voltage Supervisor IC for reset control, voltage monitoring, brownout detection, power sequencing, and reliable embedded system startup. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include 2.93V, SOT-23. Search-friendly keywords include voltage supervisor, reset IC, power monitoring, brownout detection, 2.93V, SOT-23, Voltage Supervisor IC, Supervisors. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 691-CAT803STBI-GT3 can be used for catalog matching and distributor lookup.
Supervisor Open Drain or Open Collector 1 Channel SOT-23-3
Supervisor Open Drain or Open Collector 1 Channel SOT-23-3
IC SUPERVISOR 1 CHANNEL SOT23-3
IC SUPERVISOR 1 CHANNEL SOT23-3
| Win Source Electronics | ERSAELECTRONICS PTE. LTD. | DigiKey | Quarktwin Technology Ltd. | Shenzhen Shengyu Electronics Technology Limited | Lingto Electronic Limited | |
|---|---|---|---|---|---|---|
| Product Category | Supervisory Circuits and Battery Monitor Chips | Supervisory Circuits and Battery Monitor Chips | Supervisory Circuits and Battery Monitor Chips | Supervisory Circuits and Battery Monitor Chips | Supervisory Circuits and Battery Monitor Chips | Supervisory Circuits and Battery Monitor Chips |
| Product Number | 121946-CAT803STBI-GT3 | 691-CAT803STBI-GT3 | CAT803STBI-GT3OSTR-ND | CAT803STBI-GT3 | CAT803STBI-GT3 | CAT803STBI-GT3 |
| Product Name | PMIC - PMIC - Supervisors - CAT803STBI-GT3 | 2.93V SOT-23 Voltage Supervisor IC | Supervisors | Supervisors | Integrated Circuits (ICs) - Power Management (PMIC) - Supervisors | PMIC - Supervisors |
| Number of Supplies | 1; 1 | 1 | 1; 1 | |||
| Output Options | Open Drain; Inverting; Active Low | Open Drain; Active Low | Open Drain | Open Drain; Open Drain or Open Collector | ||
| Type | SOT-23-3 | SOT-23 | SOT-23; TO-236-3, SC-59, SOT-23-3 | TO-236-3, SC-59, SOT-23-3 | SOT-23; TO-236-3, SC-59, SOT-23-3 | |
| Threshold | 2.93 volts | 2.93 volts | 2.93 volts | 2.93 volts |
