TC1303B-PG0EMFTR

Overview

The TC1303B-PG0EMFTR is a dual-output power management integrated circuit 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 on an input voltage range from 2.7 V to 5.5 V, with a nominal rating of 3.6 V. The switching regulator utilizes current-mode control with pulse width modulation at a fixed frequency of 2.4 MHz maximum. Key electrical parameters include a typical quiescent current of 65 µA and automatic transition between PWM and PFM modes.

Feature Summary

• Integrates a 500 mA synchronous buck converter and a 300 mA LDO in a compact footprint
• Provides a Power-Good output signal with a 300 ms delay for system monitoring
• Features independent shutdown controls for both the buck and LDO outputs
• Includes internal compensation for both regulator channels to simplify design

Applications

• Portable battery-powered consumer electronics requiring efficient dual-rail power
• Embedded systems needing simultaneous high-current switching and low-noise linear regulation
• Industrial control modules utilizing standard 3.3 V or 5 V input rails

Procurement Notes

Verify the specific suffix PG0EMFTR against official Microchip documentation to confirm the exact output voltage configuration and tape-and-reel specifications. Ensure that the ordering part number matches the required fixed or adjustable output settings defined in the datasheet. Cross-reference the manufacturer's latest revision history to confirm component availability and compliance status prior to final procurement.

Selection Notes

Select this component when a design requires both high-efficiency switching and clean linear regulation from a single supply rail. The integrated nature reduces board space compared to discrete solutions. Consider the 2.4 MHz switching frequency for EMI constraints and verify that the 500 mA buck current meets peak load demands while the 300 mA LDO handles sensitive analog loads.

Part Context

This part belongs to the TC1303 family of dual-output regulators. Variants such as TC1303A, TC1303C, and TC1304 share similar architectural features but differ in pin configurations, current ratings, or specific output capabilities. The TC1303B specifically denotes the version with the described 500 mA buck and 300 mA LDO performance characteristics within the Microchip PMIC portfolio.

Replacement Considerations

Direct substitutes include other TC1303B variants with different output voltage suffixes or packaging options. Verify functional equivalence regarding pinout compatibility and thermal performance before swapping.