TC1303B-1P0EMFTR

Overview

The TC1303B-1P0EMFTR is a dual-output power management IC 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 with pulse width modulation at a fixed frequency of 2.0 MHz under heavy loads. It incorporates automatic transition from PWM to PFM mode for efficiency optimization. The component is housed in a 10-pin DFN package measuring 3 mm x 3 mm with a height of 0.9 mm.

Feature Summary

• Dual-output architecture combining a high-current synchronous buck converter with a dedicated LDO.
• Integrated power-good output signal providing system status indication with defined delay characteristics.
• Independent shutdown controls allow separate management of the buck and LDO outputs to reduce standby consumption.
• Internal compensation simplifies design requirements while maintaining stability across operating conditions.

Applications

• Portable electronic devices requiring efficient multi-rail power distribution
• Battery-powered systems utilizing single-cell lithium-ion or lithium-polymer sources
• Embedded applications needing compact power solutions with independent output regulation

Procurement Notes

Verify the specific suffix '1P0' against official Microchip documentation to confirm the exact fixed output voltage configuration. Ensure the ordering part number matches the required tape-and-reel packaging specifications. Cross-reference the manufacturing date code and lot information to guarantee compliance with current RoHS standards and supply chain authenticity before finalizing procurement orders.

Selection Notes

Select this component when a compact solution is needed to generate two distinct regulated voltages from a single input source. The integrated power-good feature is suitable for microprocessor reset monitoring. Consider the thermal performance of the DFN-10 package relative to the expected load current and ambient temperature constraints during the initial design phase.

Part Context

This part belongs to the TC1303 family of dual-output regulators manufactured by Microchip Technology. The series integrates a synchronous buck controller and an LDO into a single small-footprint package. This specific model variant defines the electrical parameters and output configuration within that broader product line.

Replacement Considerations

Direct substitutes include other variants within the TC1303A, TC1303B, and TC1303C families, provided they match the required output voltage and pin compatibility. Verify package dimensions and electrical characteristics against the original design requirements before substitution.