CS5203A-2GT3

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

The CS5203A-2GT3 is a 3.0 A adjustable positive linear regulator from the CS5203A series, manufactured by onsemi. It operates with an input voltage range of 1.25 V to 13 V and provides an adjustable output voltage within the same 1.25 V to 13 V range using two external resistors. The device features a maximum quiescent current of 10 mA at full load and a typical dropout voltage as low as 1.0 V depending on the output current level. It is housed in a surface-mount D2PAK-3 package (Case 221A) and offers protection against overload conditions including Safe Operating Area (SOA), overcurrent, and thermal shutdown.

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

• Provides 3.0 A output current capability for high-power linear regulation applications
• Features low dropout voltage characteristics suitable for low voltage operation
• Includes comprehensive protection circuitry for Safe Operating Area, overcurrent, and thermal shutdown

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

• Post regulators in power supply systems
• Microprocessor power supplies
• Applications requiring good transient response and low voltage operation

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

Verify the specific suffix GT3 corresponds to the D2PAK-3 surface mount package configuration when sourcing. Confirm that the component matches the official onsemi datasheet specifications for the CS5203A series. Ensure compatibility with the required thermal management solutions given the 3.0 A current rating. Check for pinout alignment if replacing legacy components such as the LT1085 family.

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

Select this component when a high-current adjustable LDO is required with low dropout performance. It is suitable for designs needing post-regulation or microprocessor power delivery. Consider the thermal dissipation requirements associated with the D2PAK-3 package under full load conditions. Verify that the input voltage range supports the desired output voltage setting via external resistors.

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

The CS5203A-2GT3 belongs to the CS5203A series of linear regulators, which includes adjustable and fixed voltage variants. This series is designed to offer lower dropout voltages compared to similar legacy devices like the LT1085 family while maintaining pin compatibility. The series supports both TO-220-3 and surface-mount packages, catering to diverse board layout requirements for industrial and consumer electronics.

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

The CS5203A series is pin-compatible with the LT1085 family of linear regulators. When substituting, verify that the replacement device meets the specific dropout voltage and thermal performance requirements of the original design.