Manufacturer Part Number
ST2042BD
Manufacturer
stmicroelectronics
Introduction
The ST2042BD is a power management integrated circuit designed for power distribution switches and load driver applications.
Product Features and Performance
General-purpose power distribution switch
Dual output channels
High-side output configuration featuring N-channel MOSFETs
Non-inverting input
On/Off control interface
Integrated features: Fixed current limiting, over temperature protection, and under voltage lockout (UVLO)
Product Advantages
Enhanced system reliability through built-in fault protection
Efficient power distribution with low Rds On of 80mOhm typical
Supports a broad range of load voltages from 2.7V to 5.5V
Moderate output current capacity of up to 500mA
Operational across a wide temperature range from -40°C to 125°C
Key Technical Parameters
Input:Output Ratio: 1:2
Output Type: N-Channel MOSFETs, high side
Voltage - Load: 2.7V to 5.5V
Current - Output (Max): 500mA
Rds On (Typ): 80mOhm
Operating Temperature: -40°C to 125°C
Quality and Safety Features
Current limiting (Fixed)
Over temperature protection
Under voltage lockout (UVLO)
Compatibility
Compatible with various microcontroller interfaces due to On/Off control
Common 8-SOIC package for ease of integration in surface mount technology (SMT)
Application Areas
Ideal for power management in consumer electronics, portable devices, and other applications requiring reliable power distribution
Product Lifecycle
Obsolete - This product is no longer being manufactured
Potential replacement or upgrade options may be offered by the manufacturer
Several Key Reasons to Choose This Product
Provides robust protection features ensuring long-term reliability
Low Rds On for efficient power distribution and reduced heat dissipation
Versatile load voltage range suitable for various application requirements
High integration potential due to standard 8-SOIC package
Suitable for a wide range of operational environments with extensive temperature range
Product from a trusted and well-known semiconductor manufacturer
Despite obsolescence, may still be preferred for legacy designs or specific use cases
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