CS8122YTHA5G

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

The CS8122YTHA5G 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. Protection mechanisms cover reverse battery, overvoltage, short circuit, and thermal runaway, with transient protection from −50 V to +60 V. Short circuit current is limited to 1.2 A typical. Output voltage tolerance is ±2.0%. Dropout voltage is 0.6 V at 500 mA. Operating temperature range is −40°C to +125°C.

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

• Externally programmable RESET delay via discrete RC network
• Comprehensive fault protection including reverse polarity and thermal shutdown
• High output current capability exceeding 750 mA
• Tight output voltage tolerance of ±2.0%

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

• Systems requiring delayed system reset sequencing
• Power supplies needing robust reverse battery protection
• Applications demanding high current regulation with tight voltage accuracy

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

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package orientation matches the horizontal (THA) suffix specification. Check for RoHS compliance status if lead-free requirements are mandatory. Ensure ordering information aligns with the specific five-lead TO-220 variant. Validate datasheet revision against current technical documentation.

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

Select this regulator when a fixed 5.0 V output with high current capacity is required alongside a configurable reset signal. Consider the external RC network requirement for delay timing. Evaluate thermal dissipation needs given the internal power limitation. Compare dropout characteristics against input voltage variations. Assess protection features against specific application fault conditions.

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

The CS8122 belongs to the Smart Regulator family, offering integrated control features beyond standard LDOs. It serves as an improved replacement for the CS8126, providing tighter output voltage tolerance. The device integrates bandgap reference, error amplifier, and protection circuits within a single TO-220 package. It targets applications requiring reliable power management with diagnostic capabilities.

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

The CS8122 is documented as an improved replacement for the CS8126. Verify pin compatibility and thermal characteristics when substituting. Ensure the new part meets the required output voltage tolerance and current specifications. Review protection feature alignment for the target application environment.