CS8122YTVA5

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

The CS8122YTVA5 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 for the delay capacitor. It provides fault protection against reverse battery, overvoltage, short circuits, and thermal runaway, with transient protection 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
• High voltage transient protection ranging from -50 V to +40 V
• Latching discharge circuit for reliable RESET pulse generation

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 component authenticity through authorized onsemi distributors. Confirm package suffix matches required lead configuration (TVA indicates vertical TO-220). Check datasheet revision history for any updates to electrical characteristics or ordering information. Ensure application conditions remain within absolute maximum ratings to maintain reliability.

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

Select this regulator when a fixed 5.0 V output with high current capability is needed alongside customizable reset timing. Consider the TO-220 package for thermal management requirements. Evaluate external capacitor selection for stability and delay timing accuracy. Verify input voltage range compatibility with system power supply specifications.

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

The CS8122 belongs to onsemi's SMART REGULATOR family, designed for enhanced control features beyond standard linear regulators. It serves as an improved replacement for the CS8126, offering tighter output voltage tolerance. The device integrates advanced protection mechanisms suitable for demanding industrial and automotive environments.

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

The CS8122 is documented as an improved replacement for the CS8126, featuring tighter output voltage tolerance.