TC1303B-ZG0EMFTR

Overview

The TC1303B-ZG0EMFTR is a dual-output power management IC manufactured by Microchip Technology. It integrates a 500 mA synchronous buck regulator and a 300 mA low-dropout (LDO) linear regulator within a single DFN-10 package measuring 3 x 3 mm with a height of 0.9 mm. The device operates on an input voltage range from 2.7 V to 5.5 V, with a nominal rating of 3.6 V. The synchronous buck section utilizes current-mode control with pulse width modulation at a fixed frequency of 2.4 MHz maximum, featuring automatic transition to pulse frequency modulation for improved light-load efficiency. The LDO output provides independent shutdown capability.

Feature Summary

• Integrates a 500 mA synchronous buck converter and a 300 mA LDO in a compact footprint
• Features automatic PWM to PFM mode transition for optimized efficiency across load conditions
• Includes a power-good output signal with a specified delay time for system monitoring
• Provides independent shutdown controls for both the buck and LDO outputs

Applications

• Portable battery-powered consumer electronics requiring multiple voltage rails
• Embedded systems utilizing microcontrollers or application processors
• Industrial control modules with space-constrained power architectures
• IoT devices necessitating efficient standby power management

Procurement Notes

Verify the specific suffix code against official Microchip documentation to confirm the exact output voltage configuration and package variant. Ensure that the ordering information matches the required electrical specifications and thermal performance characteristics defined in the datasheet before finalizing procurement orders.

Selection Notes

Select this component when a design requires two distinct regulated voltages from a single input source within a limited board area. The integrated nature of the buck and LDO regulators reduces external component count compared to discrete solutions. Consider the total quiescent current and the specific output voltage requirements to ensure compatibility with downstream logic levels.

Part Context

This part belongs to the TC1303 family of dual-output regulators produced by Microchip Technology. The series combines switching and linear regulation technologies to address diverse power distribution needs in modern electronic designs. The ZG0EMFTR designation indicates a specific configuration within this product line, distinguished by its packaging and output settings.

Replacement Considerations

TC1303A-WG0EMFTR

FAQ

Does the TC1303B support independent control of its output stages?

Yes, the device features independent shutdown pins that allow separate control over the buck regulator and the LDO output.

What control method does the buck regulator utilize?

The synchronous buck regulator employs current-mode control with pulse width modulation technology.