CS8122YTVA5G

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

The CS8122YTVA5G is a precision 5.0 V linear regulator capable of sourcing in excess of 750 mA. It features an externally programmed RESET delay using a discrete RC network, which remains low during power-up or output regulation loss. The device includes hysteresis for noise immunity and a latching discharge circuit. It provides fault protection against reverse battery, overvoltage, short circuits, and thermal runaway, handling voltage transients from −50 V to +40 V. Short circuit current is limited to 1.2 A typical. Packaged in a 5-lead TO-220 with a copper tab.

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

• Externally programmable RESET delay via discrete RC network
• Integrated fault protection including reverse battery, overvoltage, short circuit, and thermal shutdown
• Latching discharge circuit for controlled RESET pulse generation following faults
• High transient voltage tolerance ranging from -50 V to +60 V

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

• Systems requiring precise 5.0 V regulation with delayed reset signaling
• Applications needing robust protection against reverse polarity and load dump events
• Circuits utilizing external timing components for customized startup sequences

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

Verify the specific suffix 'YTVA5G' corresponds to the vertical TO-220 package configuration. Confirm RoHS compliance status as indicated by the 'G' suffix. Check for obsolescence notices or last-time buy dates directly from onsemi documentation before finalizing procurement plans.

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

Select this component when a fixed 5.0 V output with high current capability is required alongside a customizable reset delay function. Ensure the application environment accommodates the thermal requirements of the TO-220 package, potentially necessitating a heatsink for high dissipation scenarios. Verify input voltage ranges stay within the specified absolute maximum ratings.

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

The CS8122 serves as an improved replacement for the CS8126, offering tighter output voltage tolerance (2.0% vs 4.0%). It belongs to the Smart Regulator family, integrating control features such as overvoltage shutdown and thermal protection into a single linear regulator package designed for industrial and automotive environments.

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

The CS8122 is explicitly documented as an improved replacement for the CS8126 due to tighter voltage tolerance.