CS5203A-3GDPSR3

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

The CS5203A-3GDPSR3 is a fixed-output linear regulator from onsemi, providing a stable 3.3V output with a maximum current capacity of 3A. It operates within an input voltage range up to 17V and features a typical dropout voltage of 1.15V at full load. The device incorporates internal protection mechanisms including overcurrent limiting and thermal shutdown to ensure reliability under overload conditions. Packaged in a surface-mount D2PAK-3 (TO-263-4) housing, it supports operation across a commercial temperature range of 0°C to 70°C.

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

• Provides high-current regulation suitable for microprocessor power supplies
• Includes comprehensive protection against short circuits and overheating
• Designed for low dropout performance to maintain efficiency at minimal voltage differentials

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

• Post-regulation stages in power distribution networks
• Power supply units for embedded microprocessors
• Voltage regulation for logic circuits requiring stable 3.3V rails

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

Verify component authenticity through authorized distributors due to the part's discontinued status. Confirm package integrity and marking consistency with original datasheet specifications. Ensure replacement components meet identical electrical pinouts and thermal characteristics to maintain system compatibility without redesign.

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

Select this component when a robust 3A linear solution is required for 3.3V applications. Consider its lower dropout voltage compared to legacy LT1085 equivalents for improved efficiency in low-voltage headroom scenarios. Evaluate thermal management requirements based on the specific input-to-output voltage differential and ambient operating conditions.

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

This device belongs to the CS5203A series of linear regulators, which offers both adjustable and fixed output variants. The series is engineered for applications demanding high current capability and fast transient response. It serves as a direct functional alternative to older generation regulators while offering enhanced performance metrics in terms of dropout voltage and quiescent current consumption.

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

Public confirmed substitute part numbers include LT1587CM-3.3#PBF and LT1587CM-3.3#TRPBF from Analog Devices Inc.