CAT6243DCADJ-RKG

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

The CAT6243DCADJ-RKG is a 1 Amp adjustable CMOS Low Dropout (LDO) voltage regulator manufactured by onsemi. It operates with an input voltage range of 2.7 V to 6 V and provides an adjustable output voltage from 1.25 V to 5.5 V. The device features a typical power supply rejection ratio (PSRR) of 60 dB at 1 kHz and a maximum dropout voltage of 380 mV at full load. It includes internal thermal shutdown and current limit protection, ensuring reliable operation across a temperature range of -40°C to +125°C.

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

• Adjustable output voltage configuration via external resistor divider
• High power supply rejection ratio for noise-sensitive applications
• Integrated thermal shutdown and current limiting for system protection

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

• Portable consumer electronics requiring efficient power regulation
• Battery-powered devices needing extended runtime through low dropout performance
• Embedded systems utilizing CMOS logic families

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

Verify the specific suffix DCADJ against the official datasheet to confirm package type and tape/reel specifications. Ensure compatibility with your PCB footprint and reflow profile requirements. Cross-reference the manufacturer's latest revision notes for any pinout or electrical parameter updates before finalizing procurement.

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

Select this component when a single-output LDO with 1 A capacity and adjustable voltage is required. It is suitable for designs where input voltage varies close to the desired output level. Consider the TSOP-5 package constraints and thermal dissipation capabilities relative to the expected ambient temperature and load current.

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

This part belongs to the CAT6243 series of high-performance LDO regulators. It is designed as a drop-in replacement for older fixed-voltage regulators in many portable applications, offering improved line and load regulation. The series emphasizes low quiescent current and fast transient response.

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

Check for direct pin-compatible alternatives within the same family, such as other CAT6243 variants with different suffixes. Verify if fixed-output versions meet the design needs without external resistors.