FAN5361UMP182X

Voltage Regulators - DC DC Switching Regulators Overview

The FAN5361UMP182X is a fixed-output synchronous step-down switching voltage regulator manufactured by Fairchild Semiconductor. It accepts an input voltage range of 2.3 V to 5.5 V and provides a fixed positive output of 1.82 V at a maximum current of 600 mA. The device operates with a switching frequency of 6 MHz and utilizes pulse-width modulation control. It is housed in a compact 6-pin UMLP package with an exposed pad, measuring 1.16 mm in width, 0.86 mm in length, and 0.378 mm in height. The component supports operation within a temperature range of -40 °C to +85 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous buck topology for efficient power conversion
• Fixed 1.82 V output voltage configuration
• Compact 6-pin UMLP surface-mount packaging

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring low-voltage regulation
• Battery-powered systems operating between 2.3 V and 5.5 V
• Embedded circuits needing stable 1.82 V supply rails

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'UMP182X' to confirm the 1.82 V fixed output voltage variant. Ensure compatibility with the 6-pin UMLP footprint during PCB layout. Confirm that the manufacturer designation aligns with current onsemi documentation, as Fairchild's semiconductor division has been acquired. Check for end-of-life status or replacement recommendations from official channels before finalizing procurement plans.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 1.82 V output is required without external resistor programming. The 600 mA current rating suits moderate load applications. The 6 MHz switching frequency allows for smaller passive components compared to lower-frequency regulators. Verify that the input voltage source remains within the 2.3 V to 5.5 V operational window to ensure proper regulation and stability under all expected conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the FAN5361 series of synchronous step-down converters. The series offers various fixed output voltages and current ratings, including 600 mA and 750 mA variants. The FAN5361 family is designed for space-constrained applications requiring high efficiency and minimal external component count. The UMP182X designation specifically identifies the 1.82 V output version within this product line.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Official documentation indicates the FAN5361 series may be End of Life. Contact sales for assistance with replacement devices. No specific substitute part numbers are confirmed in the provided public data.