TC1303B-SA0EMF

Overview

The TC1303B-SA0EMF is a dual-output power management IC from Microchip Technology, integrating a synchronous buck regulator and a low-dropout linear regulator. It operates within an input voltage range of 2.7V to 5.5V. The synchronous buck section provides a fixed 1.5V output at up to 500mA with a 2MHz switching frequency. The LDO section delivers a fixed 3.3V output at up to 300mA. Both outputs are internally compensated and housed in a compact 10-DFN (3x3mm) package.

Feature Summary

• Integrates a 500mA synchronous buck regulator and a 300mA low-dropout linear regulator for efficient dual-rail power generation.
• Features independent shutdown control for both the buck and LDO outputs to optimize system power consumption.
• Includes a power-good output signal with a 300ms delay to indicate stable regulation status.

Applications

• Portable electronic devices requiring simultaneous digital logic and analog supply rails
• Battery-powered systems utilizing single-cell lithium-ion or lithium-polymer sources
• Embedded controllers needing compact, high-efficiency power solutions

Procurement Notes

Verify the specific suffix SA0EMF against official Microchip documentation to confirm the fixed 1.5V/3.3V output configuration. Ensure compatibility with the required 10-DFN footprint and thermal requirements. Confirm RoHS3 compliance status if mandated by project specifications before finalizing procurement orders.

Selection Notes

Select this component when a compact solution is needed to generate two distinct voltage rails from a single input source. It is suitable for applications where independent control of power rails is necessary. Verify that the fixed output voltages meet the target circuit requirements without external adjustment.

Part Context

This device belongs to the TC1303 family of dual-output regulators. Variants within this series differ primarily in output voltage configurations and packaging options. The TC1303B specifically denotes the version with defined electrical characteristics for the integrated buck and LDO sections.

Replacement Considerations

TC1303B-SA0EMFTR is listed as a direct substitute part number.