TC1313-VD0EMF

Overview

The TC1313-VD0EMF is a dual-output power management IC from Microchip Technology, integrating a 500 mA synchronous buck regulator and a 300 mA Low-Dropout Regulator (LDO). It operates within an input voltage range of 2.7 V to 5.5 V, with a typical quiescent current of 57 µA. The device features independent shutdown controls for both outputs and internal compensation. The buck regulator supports adjustable output voltages from 0.8 V to 4.5 V or standard fixed settings, while the LDO provides a fixed 3.0 V output. It utilizes a 10-pin DFN package.

Feature Summary

• Combines a high-efficiency synchronous buck converter with a low-dropout linear regulator in a single compact package
• Provides independent shutdown control for each output to optimize system power consumption
• Features automatic transition between PWM and PFM modes to maintain efficiency across varying load conditions
• Includes comprehensive protection mechanisms such as overtemperature and short-circuit protection

Applications

• Cellular phones and mobile communication devices
• Portable computers and handheld organizers
• USB-powered electronic devices
• Handheld medical instruments requiring multiple supply rails

Procurement Notes

Verify the specific suffix 'VD0' confirms the 3.0 V fixed LDO output configuration before procurement. Ensure the order specifies the 'EMFTR' tape-and-reel packaging variant if automated assembly is required, distinct from tube-packaged versions. Confirm RoHS compliance and lead times directly with authorized distributors or Microchip Technology sales representatives.

Selection Notes

Select this component when a design requires two distinct regulated voltages, specifically a lower core voltage and a higher bias voltage, from a single power source. It is suitable for battery-operated applications where minimizing total quiescent current and maximizing buck regulator efficiency are critical. Choose this part over single-output regulators to reduce bill of materials count and PCB area.

Part Context

This part belongs to the TC1313 family of dual-output regulators designed for space-constrained portable electronics. The family offers various fixed and adjustable output combinations to suit different processor and peripheral voltage requirements. All variants share the same core architecture and pinout, differing primarily in the fixed output voltage settings of the integrated LDO stage.

Replacement Considerations

Direct functional substitutes include other TC1313 variants with different LDO output voltages, such as TC1313-UD0EMFTR (3.0 V LDO) or TC1313-IP1EMF (1.8 V LDO), provided the specific voltage requirement matches. Cross-family replacements require verification of pin compatibility and electrical specifications.