TC1313-ZA0EMFTR

Overview

The TC1313-ZA0EMFTR is a dual-output power management IC manufactured by 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 with a nominal rating of 3.6 V. The device utilizes current-mode control and pulse width modulation for the buck converter, which supports a fixed switching frequency of 2.0 MHz under heavy loads. It is housed in a compact 10-pin DFN package measuring 3 mm x 3 mm with a height of 0.90 mm.

Feature Summary

• Integrates a high-efficiency synchronous buck regulator and a dedicated LDO within a single compact package.
• 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.
• Includes internal compensation for both output regulators to simplify external component requirements.

Applications

• Portable consumer electronics requiring multiple regulated voltage rails
• Battery-powered devices needing efficient power conversion
• Embedded systems utilizing microcontrollers or application processors

Procurement Notes

Verify the specific suffix code against official Microchip documentation to confirm the exact LDO output voltage configuration, as this parameter varies across the TC1313 family. Ensure compatibility with the target PCB footprint and thermal requirements for the DFN-10 package before finalizing procurement specifications.

Selection Notes

Select this component when a design requires a combined solution for high-current digital logic and analog peripherals. The integrated nature reduces board space compared to discrete solutions. Confirm that the required LDO voltage matches the specific ZA0 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 a switching regulator with an LDO to provide flexible power distribution. The ZA0 suffix indicates a specific factory-set output voltage for the secondary LDO channel, distinguishing it from other variants in the same package.

Replacement Considerations

Direct replacements include other TC1313 variants such as TC1313-TC3EMFTR or TC1313-NH3EMFTR, provided their specific LDO output voltages match the circuit requirements. Verify pinout compatibility and ensure the substitute part meets the same electrical specifications for input voltage and current capacity.