CAT6243-ADJCMT5T

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

The CAT6243-ADJCMT5T is a 1 Amp adjustable CMOS Low Dropout (LDO) voltage regulator manufactured by onsemi. It operates with an input voltage range supporting up to 16 V and provides an adjustable output voltage ranging from 1.25 V to 15 V. The device features a typical dropout voltage of 200 mV at full load current, ensuring efficient power management in low-voltage applications. It includes built-in protection mechanisms such as thermal shutdown and current limiting to safeguard against overload conditions.

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

• Adjustable output voltage capability for flexible system design
• High efficiency operation with low dropout voltage characteristics
• Integrated thermal shutdown and current limit protection

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

• Portable consumer electronics requiring stable power rails
• Battery-powered devices needing efficient linear regulation
• Embedded systems with variable voltage requirements

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

Verify the exact suffix and package marking against the official onsemi datasheet to ensure compatibility with your PCB footprint and assembly process. Confirm that the ADJ pin configuration matches your external resistor network design. Check for any specific handling instructions related to the SOT-23-5 or similar small outline package if applicable to this specific revision.

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

Select this component when a single-channel, high-current LDO with adjustable output is required. It is suitable for applications where noise sensitivity is moderate but efficiency at light loads is not the primary concern compared to switching regulators. Ensure the input voltage does not exceed the maximum rating and that thermal dissipation capabilities of the chosen package are sufficient for the expected load current.

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

This part belongs to the CAT6243 series of adjustable LDO regulators from onsemi. The series is designed for general-purpose power management in portable and industrial applications. It complements fixed-output variants within the same family, offering designers flexibility in setting precise voltage levels through external feedback resistors without changing the core regulator architecture.

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

Direct replacements may include other 1A adjustable LDOs from different manufacturers, provided they match the pinout and electrical specifications. Verify equivalent dropout voltage, quiescent current, and stability requirements with capacitors. Cross-reference with onsemi's own CAT6241 or CAT6242 if different current ratings or fixed outputs are acceptable alternatives.