The UPC79L05J/JD is a 3-terminal negative voltage regulator from NEC (now Renesas Electronics). This regulator provides a fixed -5V output with a low dropout voltage, making it suitable for a wide range of applications requiring a stable negative supply.

Applications

• Negative Voltage Power Supplies
• Local Regulation
• Post Regulation for Switching Power Supplies
• Voltage Reference
• Instrumentation

Features

• Fixed Output Voltage: -5V
• Output Current: Up to 100mA
• Internal Short-Circuit Current Limiting
• Thermal Overload Protection
• No External Components Required

Benefits

• Stable -5V Supply: Provides a reliable negative voltage for various circuits.
• Simplified Design: Requires no external components, reducing board space and cost.
• Protection Against Overload: Short-circuit current limiting and thermal overload protection enhance reliability.
• Easy to Use: Simple 3-terminal configuration for easy integration.
• Cost-Effective Solution: Provides a low-cost solution for negative voltage regulation.

Additional Details

The UPC79L05J/JD operates with an input voltage range of approximately -7V to -20V [confirm range in the datasheet]. The dropout voltage is typically [search for specific value in datasheet], allowing the regulator to maintain regulation even with a relatively small difference between input and output voltage. The package is typically a [search for specific package type, likely a small outline package] package.

The regulator can be used as a negative voltage reference by connecting a resistor between the output and the adjust (ground) pin. For detailed electrical characteristics and application notes, refer to the official Renesas Electronics datasheet for the UPC79L05J/JD.