LT1158ISW#TRPBF

Overview

The LT1158ISW#TRPBF is a half-bridge N-channel power MOSFET driver manufactured by Analog Devices Inc. It is designed to serve as an ideal synchronous switch driver, significantly improving the efficiency of step-down (buck) switching regulators. The device operates with an input voltage range of 10V to 30V and supports output voltages up to 5V with currents reaching 10A, delivering up to 50W of output power at efficiencies around 90%. Packaged in a wide SOIC-16 format, it integrates high-current drive capabilities suitable for demanding power conversion applications.

Feature Summary

• Provides high-efficiency synchronous rectification control for buck converters
• Features robust half-bridge driving capability for N-channel MOSFETs
• Supports wide input voltage ranges compatible with standard industrial supplies

Applications

• High-efficiency DC-to-DC buck switching regulators
• Synchronous rectifier drivers in power supply modules
• Industrial power conversion systems requiring improved thermal performance

Procurement Notes

Verify the specific suffix TRPBF indicates tape-and-reel packaging when sourcing. Confirm the ISW designation corresponds to the industrial temperature range and SOIC-16 package width. Ensure compatibility with the intended gate charge requirements of the target MOSFETs. Cross-reference the manufacturer part number directly with official Analog Devices documentation to avoid counterfeit components.

Selection Notes

Select this component when designing synchronous buck converters that require enhanced efficiency over asynchronous designs. It is suitable for applications where input voltages fall between 10V and 30V. Consider the drive current capabilities relative to the total gate charge of the external MOSFETs. Evaluate the thermal management needs of the system given the potential for 50W output power handling.

Part Context

This component belongs to the LT1158 family of power MOSFET drivers from Analog Devices. It is specifically engineered to complement voltage-mode PWM controllers, such as the LT3525, by providing the necessary gate drive signals for both high-side and low-side switches in a half-bridge configuration.

Replacement Considerations

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