TC1313-VD0EMFTR

Overview

The TC1313-VD0EMFTR is a dual-output power management IC from Microchip Technology, featuring a 500 mA synchronous buck regulator and a 300 mA low-dropout regulator (LDO). It operates within an input voltage range of 2.7 V to 5.5 V. The device utilizes current-mode control with pulse width modulation for the buck converter, which supports a fixed switching frequency of 2.0 MHz under heavy loads and transitions to PFM mode automatically. The LDO provides a fixed output voltage of 3.0 V. Total quiescent current is typically 57 µA. Both outputs are internally compensated and feature independent shutdown capabilities.

Feature Summary

• Dual-output architecture combining a high-efficiency synchronous buck regulator with a dedicated low-dropout linear regulator in a single package.
• Integrated automatic transition between PWM and PFM control modes to optimize efficiency across varying load conditions.
• Independent shutdown controls allow separate management of the buck and LDO outputs to minimize standby power consumption.

Applications

• Portable consumer electronics requiring multiple voltage rails
• Battery-powered devices needing efficient power conversion
• Embedded systems with space-constrained PCB layouts

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm the exact LDO output voltage configuration, as variations exist within the family. Ensure compatibility with RoHS standards and lead-free requirements specified in the datasheet. Confirm that the DFN-10 package dimensions align with your board design constraints before finalizing procurement.

Selection Notes

Select this component when a compact solution is required for generating both a regulated buck voltage and a stable LDO rail from a single input source. Consider the 2.0 MHz switching frequency for minimizing external passive component sizes while maintaining acceptable noise levels. Evaluate the total quiescent current specifications against system sleep mode requirements to ensure adequate battery life extension.

Part Context

This part belongs to the TC1313 series of dual-output regulators designed for portable applications. It integrates a 500 mA synchronous buck converter and a 300 mA LDO into a small DFN-10 package. The series offers various fixed output voltage combinations for the LDO section, differentiated by ordering suffixes, while the buck output remains adjustable or fixed depending on the variant.

Replacement Considerations

Direct substitutes include other TC1313 variants with different LDO output voltages, such as TC1313-OS3EMFTR or TC1313-UD0EMFTR, provided the specific voltage requirements match the application needs.