TPS3803-01DCKR – Supervisor Open Drain Collector 1Cha IC SC-70-5

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Datasheet
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Precision Voltage Supervisor IC with Open-Drain Reset Output for Reliable Microcontroller Power Monitoring
The TPS3803-01DCKR is a compact voltage supervisor designed to monitor system power rails and ensure reliable operation of microcontrollers and digital circuits. Developed by Texas Instruments, this device detects undervoltage conditions and asserts a reset signal to prevent system malfunction during power fluctuations or unstable supply conditions.
The device features an open-drain reset output, allowing flexible interfacing with different logic voltage levels through an external pull-up resistor. With its precise threshold detection and built-in reset delay timer, the TPS3803-01DCKR ensures stable system startup and reliable operation during power-up and power-down events. Its ultra-small SC-70-5 package makes it ideal for compact embedded systems, portable electronics, industrial controllers, and IoT devices where board space and power reliability are critical.
Key Features

Precision Voltage Supervisor: Monitors supply voltage and detects undervoltage conditions.
Open-Drain Reset Output: Flexible interfacing with microcontroller reset pins.
Automatic Power-On Reset: Ensures proper system startup after voltage stabilisation.
Integrated Reset Delay: Provides controlled reset release for stable operation.
Single Power Rail Monitoring: Designed for reliable supervision of one supply line.
Low Power Consumption: Suitable for battery-powered electronics.
Fast Response to Voltage Drops: Protects system operation during power instability.
Compact SC-70 Package: Ideal for space-constrained PCB designs.