CS8120YDPR5

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The CS8120YDPR5 is a precision linear voltage regulator manufactured by onsemi, providing a fixed 5.0 V output with a maximum load current of 300 mA. It features a low dropout voltage of 1 V at 200 mA and maintains a low quiescent current of 2.5 mA at 150 mA output. The device incorporates microprocessor-compatible control functions, including an enable pin and a reset signal. Protection circuitry includes thermal shutdown and short-circuit protection. The composite NPN-PNP output pass transistor ensures efficient operation without excessive supply current requirements.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Microprocessor-compatible control functions with dedicated enable and reset pins
• Composite NPN-PNP output pass transistor for low dropout performance
• Integrated fault protection including thermal shutdown and short-circuit protection

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Microprocessor power supply systems
• Embedded system voltage regulation
• Portable electronic devices requiring low quiescent current

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the component datasheet revision and manufacturer documentation to confirm electrical characteristics and pinout compatibility before integration. Ensure that the operating conditions, including input voltage range and thermal management requirements, align with the specific application design parameters. Cross-reference the part number suffixes to confirm package type and tape-and-reel specifications if applicable.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this regulator when a stable 5 V output is required with moderate current demands up to 300 mA. The low quiescent current makes it suitable for battery-powered applications where efficiency is critical. Consider the dropout voltage characteristics relative to the minimum input voltage available in the system. The integrated reset function simplifies system initialization sequences for microprocessor-based designs.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

The CS8120 series belongs to the family of precision linear regulators designed for digital logic and microprocessor applications. These devices combine high accuracy with robust protection features. The YDPR5 suffix typically indicates a specific package configuration and reel quantity, distinguishing it from other variants in the CS8120 lineup which may offer different current ratings or package styles.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Direct substitutes include the CS8121 for higher current capability (1 A) and the CS8101 for lower current applications (100 mA). Other compatible options from different manufacturers include the AAT3258, which offers similar 300 mA performance with UP reset functionality. Verify pin compatibility and electrical specifications before substitution.