TC1303B-AG0EMFTR

Overview

The TC1303B-AG0EMFTR 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) 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, supporting a maximum switching frequency of 2400 kHz. It incorporates automatic transition from PWM to PFM modes for efficiency optimization. The component is housed in a 10-pin DFN package measuring 3 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 regulator
• Integrated power-good output signal providing system status indication with configurable delay
• Independent shutdown controls allowing separate management of the buck and LDO outputs
• Internally compensated design ensuring stability without requiring external compensation components

Applications

• Portable consumer electronics requiring efficient multi-rail power distribution
• Battery-powered devices utilizing single-cell lithium-ion or lithium-polymer sources
• Embedded systems needing isolated regulation for digital logic and analog peripherals
• Industrial control modules operating within standard low-voltage DC ranges

Procurement Notes

Verify the specific suffix AG0 against official Microchip documentation to confirm the fixed output voltage configuration. Ensure the ordering part number matches the required DFN-10 package variant. Confirm RoHS compliance and lead-free status through the manufacturer's certified datasheet before finalizing procurement specifications.

Selection Notes

Select this component when a compact solution is needed for generating two distinct regulated voltages from a single input source. The internal compensation simplifies layout requirements compared to externally compensated alternatives. Consider the quiescent current and shutdown features if power conservation during idle states is a critical design constraint.

Part Context

This part belongs to the TC1303 family of dual-output regulators. Variants within this series differ primarily in output voltage settings and package options. The TC1303B designation indicates specific electrical characteristics and performance thresholds defined by the manufacturer for this generation of synchronous buck and LDO integrated circuits.

Replacement Considerations

Consult official Microchip cross-reference lists for verified substitutes. Generic equivalents may not match the specific pinout or internal compensation of the TC1303B series.