LT1317BIS8#TRPBF

Overview

The LT1317BIS8#TRPBF is a micropower, fixed-frequency step-up DC/DC converter manufactured by Analog Devices Inc. It operates over a wide input voltage range of 1.5V to 12V and provides an adjustable output voltage from 1.24V to 30V with a maximum output current of 0.2A. The device utilizes an 8-pin SOIC-N package. Unlike many converters in its class, it does not shift into Burst Mode operation at light loads, which eliminates low-frequency output ripple at the expense of light load efficiency.

Feature Summary

• Fixed frequency PWM operation without light-load Burst Mode switching
• Wide input voltage compatibility for diverse power sources
• Adjustable output voltage capability up to 30V
• Micropower design optimized for low current applications

Applications

• Digital camera power supplies
• Low noise varactor bias supply generation
• Two-cell battery to 3.3V boost conversion

Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when sourcing. Confirm the IS8 designation corresponds to the industrial temperature range and SOIC-N package style required for your PCB layout. Cross-reference the manufacturer's latest datasheet to ensure compliance with RoHS directives and check for any recent product change notifications affecting pinout or electrical characteristics before finalizing procurement.

Selection Notes

Select this component when low output ripple is critical and the system can tolerate reduced efficiency at very light loads due to the absence of Burst Mode. It is suitable for designs requiring a wide input voltage range starting as low as 1.5V. Ensure the application current does not exceed 0.2A and that the thermal performance of the SOIC-N package meets the requirements for the expected ambient conditions and duty cycle.

Part Context

The LT1317B series belongs to Analog Devices' portfolio of micropower switching regulators designed for battery-powered and space-constrained applications. The IS8 variant specifically denotes the industrial temperature grade housed in a standard small-outline integrated circuit package. This family focuses on providing stable regulation with minimal external component count while maintaining predictable ripple characteristics across varying load conditions.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.