TC1303C-PI0EMFTR

Overview

The TC1303C-PI0EMFTR is a dual-output power management IC manufactured by Microchip Technology. It integrates a 500 mA synchronous buck regulator and a 300 mA low-dropout (LDO) linear regulator within a single DFN-10 package measuring 3 x 3 mm with a height of 0.9 mm. The device operates from an input voltage range of 2.7 V to 5.5 V, with a nominal rating of 3.6 V. Key electrical specifications include a maximum switching frequency of 2400 kHz for the buck converter and a total typical quiescent current of 65 µA. The component supports adjustable output voltages ranging from 0.8 V to 4.5 V for the buck section and includes standard fixed options.

Feature Summary

• Integrates a 500 mA synchronous buck regulator and a 300 mA LDO in a compact footprint
• Features automatic transition between PWM and PFM modes for optimized efficiency across load conditions
• Provides independent shutdown control for both the buck and LDO outputs
• Includes a power-good output signal with a defined delay to indicate valid regulation

Applications

• Portable battery-powered consumer electronics requiring efficient dual-rail power
• Embedded systems utilizing microcontrollers needing separate logic and analog supply rails
• IoT devices prioritizing extended battery life through low quiescent current operation
• Mobile communication modules requiring stable voltage regulation under varying loads

Procurement Notes

Verify the specific suffix code against official Microchip documentation to confirm the exact output voltage configuration, as this parameter varies significantly across the TC1303 family. Ensure compatibility with the target PCB layout regarding the DFN-10 thermal pad requirements. Cross-reference the datasheet for any updates on recommended external component values to maintain stability and performance standards.

Selection Notes

Select this component when a design requires two distinct regulated outputs from a single source without consuming multiple board areas. Consider the internal compensation which simplifies the external circuit design compared to non-compensated alternatives. Evaluate the thermal performance of the DFN-10 package relative to the expected ambient temperature and load current to ensure reliable long-term operation.

Part Context

This part belongs to the TC1303 series, which combines high-efficiency switching and linear regulation technologies. The 'C' designation typically indicates specific output voltage configurations or feature sets within the broader product line. Microchip utilizes this architecture to address space-constrained applications where power density and efficiency are critical design constraints.

Replacement Considerations

Direct replacements within the same family include TC1303A, TC1303B, and TC1304 variants. Verify that the substitute part number matches the required output voltage settings and pinout compatibility before implementation.