LT1308ACS8#TRPBF

Overview

The LT1308ACS8#TRPBF is a micropower, fixed-frequency step-up DC/DC converter manufactured by Analog Devices Inc. It operates with an input voltage range of 2.7V to 4.2V and provides a regulated output voltage of 5V at up to 1A output current. The device utilizes a boost topology with a switching frequency of 600kHz. It achieves high efficiency of approximately 90% and delivers output power between 2W and 5W. The component is housed in an 8-lead SOIC package.

Feature Summary

• Integrates a high-current switch capable of delivering up to 1A output current for single-cell lithium-ion applications.
• Features automatic transition to power-saving Burst Mode operation at light loads to minimize quiescent current consumption.
• Utilizes a fixed 600kHz switching frequency to allow for the use of small external passive components.

Applications

• GSM mobile phone power supplies
• Single-cell lithium-ion battery powered devices
• Portable instrumentation requiring efficient step-up conversion

Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the supplier is an authorized distributor to guarantee part authenticity and traceability. Check for any recent product change notifications that may affect pinout or electrical characteristics.

Selection Notes

Select this component for designs requiring high efficiency from a single lithium cell. The 600kHz frequency allows for compact magnetic component selection compared to lower frequency alternatives. Consider the thermal performance of the SOIC-8 package under full load conditions. Verify that the required output voltage matches the fixed 5V configuration or select an adjustable variant if different voltages are needed.

Part Context

This part belongs to the LT1308 family of micropower DC/DC converters designed for portable electronics. Analog Devices acquired Linear Technology, the original developer of this series, integrating these high-performance power management solutions into their portfolio. The LT1308 series is characterized by its ability to drive high currents from low-voltage sources efficiently.

Replacement Considerations

LT1308AIS8#TRPBF: Offers similar functionality but may have extended temperature range specifications. LT1308IS8#PBF: Provides the same core regulation features in a leaded SOIC-8 package instead of tape-and-reel. Verify pin compatibility and thermal requirements before substituting.