TC1303C-ZP0EMFTR

Overview

The TC1303C-ZP0EMFTR is a dual-output power management IC from Microchip Technology, integrating a 500 mA synchronous buck regulator and a 300 mA low-dropout (LDO) linear regulator. The device operates within an input voltage range of 2.7 V to 5.5 V, with a nominal rating of 3.6 V. It utilizes current-mode control with pulse width modulation (PWM) for the switching regulator, which features a fixed frequency of 2.0 MHz under heavy loads and transitions automatically to pulse frequency modulation (PFM) at light loads. The package is a 10-pin DFN measuring 3 mm x 3 mm with a height of 0.9 mm.

Feature Summary

• Dual-output architecture combining a high-efficiency synchronous buck converter with a low-noise LDO in a single compact package.
• Automatic transition between PWM and PFM modes to optimize efficiency across varying load conditions.
• Integrated power-good output signal providing system status indication with a defined delay period.
• Independent shutdown controls allow separate management of the buck and LDO outputs to conserve energy.

Applications

• Portable consumer electronics requiring efficient multi-rail power distribution
• Battery-powered devices utilizing both switching and linear regulation stages
• Embedded systems needing independent output control and status monitoring

Procurement Notes

Verify the specific suffix ZP0 against official Microchip documentation to confirm the exact output voltage configuration, as this code determines the fixed or adjustable nature of the regulators. Ensure the order includes the TR tape-and-reel designation if automated surface-mount assembly is required. Cross-reference the RoHS compliance status and lead-free finish details provided in the manufacturer's datasheet prior to finalizing procurement specifications.

Selection Notes

Select this component when a design requires both high-current switching regulation and low-noise linear regulation within a limited board area. The internal compensation simplifies external component selection compared to discrete solutions. Consider the 2.0 MHz switching frequency for balancing electromagnetic interference and passive component size. Verify that the total quiescent current meets the standby power requirements of the target application.

Part Context

This part belongs to the TC1303 family, which pairs a synchronous buck regulator with an LDO. The 'C' variant typically denotes specific electrical characteristics or temperature ranges defined by the manufacturer. The ZP0 suffix identifies the specific output voltage setting or adjustment method, distinguishing it from other variants like DP0 or XR0 which may have different fixed voltages or adjustability options.

Replacement Considerations

Direct replacements include other TC1303 variants such as TC1303C-DP0EMFTR or TC1303C-XR0EMFTR, provided the output voltage settings match the circuit requirements. Verify pin compatibility and thermal performance before substituting, as packaging dimensions remain consistent across the series but electrical parameters may vary based on the output code.