LT8392HFE#PBF

Overview

The LT8392HFE#PBF is a synchronous 4-switch buck-boost DC/DC controller from Analog Devices, designed for high-efficiency power conversion. It supports an input voltage range of 4V to 60V and regulates output voltages from 0V to 60V. The device operates at a switching frequency between 150kHz and 650kHz with a maximum static current of 2.1mA. It features a TSSOP-28 package and functions within a temperature range of -40°C to +150°C. Load regulation is specified at 1%, ensuring stable performance across varying conditions.

Feature Summary

• Synchronous 4-switch architecture allows operation when input voltage is above, below, or equal to output voltage
• Proprietary peak boost and peak buck current mode control for optimized efficiency
• Integrated spread spectrum modulation to reduce electromagnetic interference

Applications

• LED lighting drivers requiring wide input/output voltage ranges
• Industrial equipment power supplies with variable source voltages
• Battery-powered systems where input voltage fluctuates around the target output

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm RoHS compliance status and check for specific shipping restrictions in your region. Ensure the ordering suffix matches the required tape-and-reel or tube packaging configuration. Validate that the supplier provides original manufacturer documentation to guarantee part integrity and traceability.

Selection Notes

Select this controller for applications demanding high efficiency across wide voltage transitions. Consider the TSSOP-28 package for thermal management requirements. Evaluate the fixed switching frequency options against EMI constraints. Ensure external components support the 60V rating and that the control loop compensation aligns with the specific load dynamics for stable regulation.

Part Context

This component belongs to the LT8390/LT8391/LT8392 family of 60V synchronous buck-boost controllers. While sharing similar architectural foundations, the LT8392 variant is specifically optimized for LED driver applications with integrated current regulation capabilities. It complements the broader portfolio by addressing scenarios requiring precise current control alongside voltage regulation.

Replacement Considerations

LT8390HFE#PBF serves as a related variant within the same family, offering similar buck-boost topology but potentially differing in specific control features or optimization targets. Cross-reference datasheets to ensure compatibility with existing circuit designs before substitution.