CS5203A-1GT3

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

The CS5203A-1GT3 is a linear regulator from the CS5203A series, providing a fixed 1.5 V output with a maximum current of 3.0 A and an accuracy of ±2.0%. Designed for low dropout operation, it functions effectively as a post-regulator or microprocessor supply. The device features fast loop response and operates with dropout voltages as low as 1.0 V depending on load conditions. It includes comprehensive protection against overload, Safe Operating Area (SOA), overcurrent, and thermal shutdown events.

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

• Provides stable 3.0 A output current with high voltage regulation accuracy
• Operates with minimal dropout voltage for efficient low-voltage applications
• Integrates full protection circuitry including SOA, overcurrent, and thermal shutdown

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

• Microprocessor power supplies
• Post-regulation stages in power systems
• Low voltage operation circuits requiring good transient response

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

Verify the specific suffix GT3 corresponds to the TO-220-3 package configuration when sourcing. Confirm that the fixed 1.5 V output variant matches the system requirement, as the CS5203A series also offers adjustable and other fixed voltage options. Ensure compatibility with existing thermal management solutions given the 3.0 A continuous current capability.

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

Select this component when a fixed 1.5 V rail is required at up to 3.0 A with tight tolerance. It serves as a pin-compatible alternative to the LT1085 family but offers lower dropout characteristics. Consider the TO-220-3 package for through-hole mounting requirements and verify that the input voltage range supports the necessary headroom for the specified load current.

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

This part belongs to the CS5203A series of linear regulators manufactured by onsemi. The series encompasses adjustable versions and multiple fixed voltage outputs including 1.5 V, 3.3 V, and 5.0 V variants. These regulators are engineered for applications demanding high current delivery and precise voltage stability in compact form factors.

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

The CS5203A series is pin-compatible with the LT1085 family of linear regulators. Designers may substitute LT1085 devices with this component to achieve lower dropout voltage performance while maintaining the same footprint and pinout configuration.