TC1313-DG0EMFTR

Overview

The TC1313-DG0EMFTR 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. 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 for the buck section, which features a fixed switching frequency of 2.0 MHz under heavy loads. The LDO output is internally set to 1.8 V. Both outputs are independently shutdown-capable and internally compensated, housed in a compact 10-pin DFN package.

Feature Summary

• Integrates a high-efficiency synchronous buck converter and a dedicated low-dropout linear regulator on a single chip
• Provides independent shutdown control 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
• Includes internal compensation for both regulators to simplify external component requirements

Applications

• Portable consumer electronics requiring multiple voltage rails
• Battery-powered devices needing efficient step-down conversion and clean analog supply
• Embedded systems utilizing microprocessors or memory components
• IoT modules with strict space and power constraints

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm the fixed LDO output voltage, as variations exist within the family. Ensure compatibility with RoHS standards and lead-free specifications required by your manufacturing process. Confirm the tape-and-reel packaging format matches your assembly equipment capabilities before finalizing procurement orders.

Selection Notes

Select this component when a design requires simultaneous generation of a programmable or fixed lower voltage via the buck converter and a stable auxiliary voltage via the LDO. Consider the total quiescent current and thermal performance in dense PCB layouts. Verify that the required LDO voltage aligns with the specific DG0 suffix variant available from the manufacturer.

Part Context

This part belongs to the TC1313 series of dual-output regulators designed for space-constrained applications. The series combines switching and linear regulation technologies to offer flexibility in power distribution. The DG0 suffix specifically denotes a fixed 1.8 V output for the integrated LDO section, distinguishing it from other variants with different fixed voltages or adjustable options.

Replacement Considerations

Check Microchip's official cross-reference lists for direct replacements. Variants such as TC1313-TC3EMFTR or TC1313-TP3EMFTR share the same core architecture but differ in LDO output voltage. Ensure pinout and electrical characteristics match before substituting.