TC1313-ZG0EMFTR

Overview

The TC1313-ZG0EMFTR is a dual-output power management IC from 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 (PWM), supporting a maximum switching frequency of 2.4 MHz. It is housed in a compact 10-pin DFN package measuring 3 mm by 3 mm with a height of 0.90 mm. The specific suffix indicates a fixed LDO output voltage of 3.3 V.

Feature Summary

• Integrates a high-efficiency synchronous buck converter and a dedicated low-dropout linear regulator on a single chip.
• Provides independent shutdown controls for both the buck and LDO outputs to optimize system power consumption.
• Features automatic transition between PWM and PFM modes to maintain efficiency across varying load conditions.

Applications

• Portable consumer electronics requiring multiple distinct voltage rails
• Battery-powered devices needing efficient step-down conversion
• Embedded systems utilizing microcontrollers with separate logic and analog supply requirements

Procurement Notes

Verify that the ordering suffix matches the required LDO output voltage configuration, as variations exist within the family. Confirm the package type is the specified 10-lead DFN variant. Ensure compliance with RoHS standards and lead-free specifications if required by your manufacturing process. Cross-reference the datasheet for thermal performance under your specific PCB layout conditions.

Selection Notes

Select this component when a design requires two regulated outputs from a single source without external compensation components. The internal compensation simplifies the bill of materials. Consider the quiescent current specifications for battery life calculations. Verify that the 500 mA buck current capability meets the peak load demands of the primary circuit branch.

Part Context

This part belongs to the TC1313 series of dual-output regulators designed for space-constrained applications. It combines switching and linear regulation technologies to provide flexible power distribution. The series is characterized by its small footprint and integrated protection features, making it suitable for modern portable electronic designs where board area is at a premium.

Replacement Considerations

Direct substitutes include other TC1313 variants with different LDO output voltages, such as TC1313-UD0EMFTR or TC1313-TC3EMFTR, provided the voltage requirements align. Ensure any replacement maintains the same 10-lead DFN pinout compatibility.