TC1303A-UA0EMFTR

Overview

The TC1303A-UA0EMFTR is a dual-output power management IC manufactured by Microchip Technology, featuring a 500 mA synchronous buck regulator and a 300 mA low-dropout (LDO) regulator. It operates within an input voltage range of 2.7 V to 5.5 V with a nominal rating of 3.6 V. The device utilizes current-mode control and pulse width modulation, switching at a maximum frequency of 2400 kHz. It is housed in a 10-pin DFN package measuring 3 x 3 mm with a height of 0.9 mm.

Feature Summary

• Integrates a high-efficiency synchronous buck converter and a low-noise LDO for compact dual-rail designs
• Provides independent shutdown control for both the buck and LDO outputs to optimize system power consumption
• Includes a power-good output signal with a configurable delay to ensure stable sequencing during startup

Applications

• Portable consumer electronics requiring efficient multi-voltage rails
• Embedded systems utilizing single-cell lithium-ion or lithium-polymer batteries
• Industrial control modules needing isolated regulation stages

Procurement Notes

Verify the suffix UA0EMFTR against official Microchip documentation to confirm the specific fixed output voltage configuration. Ensure the ordering part number matches the required voltage tolerance and thermal performance specifications for your target application environment.

Selection Notes

Select this component when a compact solution is needed for generating two distinct regulated voltages from a single source. Consider the internal compensation and automatic mode transition features if minimizing external component count and optimizing light-load efficiency are primary design constraints.

Part Context

This part belongs to the TC1303 family of dual-output regulators. Variants within this series differ primarily in their fixed output voltage settings, indicated by unique alphanumeric suffixes. All members share the same core architecture, pinout, and physical dimensions, facilitating drop-in compatibility across different voltage requirements.

Replacement Considerations

Direct substitutes include other TC1303A variants with different output voltages, such as TC1303A-YL0EMFTR or TC1303A-EK3EMFTR, provided the electrical parameters align with the circuit design.