TC1303A-SI0EMFTR

Overview

The TC1303A-SI0EMFTR is a dual-output power management IC manufactured by Microchip Technology, featuring 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) technology and supports a maximum switching frequency of 2400 kHz. 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

• Integrates a high-efficiency synchronous buck converter and a low-noise LDO for compact dual-rail power solutions
• Features automatic transition between PWM and PFM modes to optimize efficiency across varying load conditions
• Includes a power-good output signal with a configurable delay to monitor regulator status
• Supports independent shutdown controls for both the buck and LDO outputs to minimize standby power consumption

Applications

• Portable consumer electronics requiring efficient multi-voltage rail generation
• Battery-powered devices utilizing single-cell lithium-ion or lithium-polymer sources
• Embedded systems needing isolated shutdown capabilities for power domains
• Industrial control modules operating from standard 3.3 V or 5 V supply lines

Procurement Notes

Verify the specific suffix 'SI0' against official Microchip documentation to confirm the exact fixed output voltage configuration, as ordering codes determine internal resistor networks. Ensure compatibility with RoHS standards and lead-free manufacturing processes required for your assembly line. Cross-reference the tape-and-reel packaging specifications with your pick-and-place equipment requirements before finalizing procurement orders.

Selection Notes

Select this component when a design requires simultaneous regulation from a single input source with minimal external passive components. The integrated compensation simplifies layout compared to discrete solutions. Consider the thermal performance of the DFN-10 package relative to the expected continuous current load. Verify that the required output voltages match the available fixed options or adjustable ranges specified in the datasheet.

Part Context

This part belongs to the TC1303 family of dual-output regulators designed for space-constrained applications. The series combines switching and linear regulation technologies to address diverse load requirements within a single footprint. Variations within the family typically differ by output voltage settings and specific feature enablements, sharing common control architectures and pinouts for design flexibility.

Replacement Considerations

Consult Microchip's official cross-reference tools for verified substitutes. Potential alternatives may include other dual-output buck-LDO combinations from the same manufacturer or compatible third-party equivalents, provided pinouts and electrical characteristics align precisely with the original design constraints.