TC1303C-RD1EMFTR

Overview

The TC1303C-RD1EMFTR is a dual-output power management IC from Microchip Technology, integrating a 500 mA synchronous buck regulator and a 300 mA low-dropout (LDO) regulator. The device operates with an input voltage range of 2.7 V to 5.5 V and features a typical total quiescent current of 65 µA. It utilizes a 2.0 MHz fixed-frequency PWM control scheme for the buck converter, which transitions automatically to PFM mode for improved light-load efficiency. The component is housed in a compact 10-pin DFN package measuring 3 mm x 3 mm.

Feature Summary

• Dual-output architecture combining a high-current synchronous buck regulator with a dedicated LDO for simultaneous power rail generation.
• Integrated power-good output signal that provides system status indication with a configurable delay timer.
• Independent shutdown controls allow separate management of the buck and LDO outputs to optimize standby power consumption.
• Internal compensation simplifies design implementation by eliminating the need for external frequency compensation components.

Applications

• Portable consumer electronics requiring multiple regulated voltage rails
• Battery-powered devices needing efficient power conversion and extended runtime
• Embedded systems utilizing microcontrollers or application processors

Procurement Notes

Verify the specific suffix code RD1 against official Microchip documentation to confirm pinout compatibility and thermal characteristics. Ensure the ordering part number matches the required tape-and-reel packaging specifications. Cross-reference the date code and lot traceability requirements with your manufacturing standards before finalizing procurement orders.

Selection Notes

Select this component when a single solution is needed to generate both a higher-current switching rail and a lower-noise linear rail. It is suitable for designs where board space is limited due to the integrated DFN footprint. Consider the independent shutdown feature if system-level power management requires distinct control over different voltage domains.

Part Context

This part belongs to the TC1303 family, which includes variants like TC1303A, B, and C differing primarily in output voltage configurations and package options. The TC1303 series is designed to replace discrete regulator solutions, reducing component count and assembly complexity in modern portable electronic applications.

Replacement Considerations

Direct replacements include other TC1303 variants such as TC1303C-TR1EMFTR or TC1303C-WG1EMFTR, provided the specific output voltage settings and package markings align with the original design requirements.