TC1304-ZS0EMFTR

Overview

The TC1304-ZS0EMFTR is a dual-output power management integrated circuit 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. The device operates with an input voltage range of 2.7 V to 5.5 V and supports a typical quiescent current of 65 µA. The buck converter utilizes a fixed 2.0 MHz switching frequency, while the LDO provides independent shutdown control. The component is rated for operation between -40°C and +85°C.

Feature Summary

• Integrates a 500 mA synchronous buck regulator and a 300 mA low-dropout regulator in a compact footprint
• Features automatic transition from pulse width modulation to pulse frequency modulation for optimized efficiency
• Includes a power-good output indicator with a configurable delay timer
• Supports independent shutdown controls for both the buck and LDO outputs

Applications

• Portable cellular telephones and mobile communication devices
• Personal digital assistants and handheld computing equipment
• USB-powered peripheral devices and accessories
• Battery-operated consumer electronics requiring multi-voltage rails

Procurement Notes

Verify the specific suffix code against the official datasheet to confirm the exact output voltage configuration, as this determines functional compatibility. Ensure the ordering quantity aligns with the manufacturer's standard reel packaging requirements. Confirm that the intended application environment remains within the specified operating temperature limits. Validate that the required load currents do not exceed the rated maximums for either the switching or linear regulator sections.

Selection Notes

Select this component when a design requires two distinct regulated voltages from a single power source within a limited board area. It is suitable for systems needing high efficiency during heavy loads and low noise during sensitive operations. Consider the internal compensation which reduces external component count compared to discrete solutions. Evaluate the fixed switching frequency against electromagnetic interference constraints in the target application.

Part Context

This part belongs to the TC1303/TC1304 series of highly integrated power management ICs released by Microchip Technology. The series addresses the need for compact power solutions in portable electronics by combining switching and linear regulation technologies. The TC1304 variant specifically focuses on providing independent control over its dual outputs, distinguishing it from simpler single-regulator alternatives in the broader PMIC portfolio.

Replacement Considerations

Consult the official Microchip documentation for qualified pin-to-pin compatible alternatives within the same family. Verify that any substitute maintains identical package dimensions and thermal characteristics. Cross-reference electrical specifications to ensure equivalent current handling and voltage regulation capabilities.