LT8608IMSE#PBF

Overview

The LT8608IMSE#PBF is a synchronous step-down switching regulator manufactured by Analog Devices Inc., housed in a 10-lead MSOP package with an exposed pad. It operates within an input voltage range of 3V to 42V and delivers a continuous output current of 1.5A. The device features adjustable output voltage, a switchable frequency between 200kHz and 2.2MHz, and ultra-low quiescent current consumption of 1.7µA during operation and 2.5µA in standby. It supports junction temperatures from -40°C to +125°C.

Feature Summary

• Integrates high-speed synchronous rectification for efficient power conversion
• Features low ripple Burst Mode operation to maintain efficiency at light loads
• Includes internal compensation for stable loop performance with small inductors
• Provides programmable undervoltage lockout and power good flag signaling

Applications

• Industrial point-of-load regulation
• Battery-powered equipment power management
• Embedded systems requiring compact DC-DC conversion
• Automotive subsystems operating within specified voltage ranges

Procurement Notes

Verify the specific suffix #PBF indicates lead-free tape and reel packaging compatible with standard surface mount assembly processes. Confirm that the MSOP-10 package dimensions align with your PCB footprint requirements. Ensure thermal design accounts for the exposed pad on the bottom of the package to dissipate heat effectively under maximum load conditions. Check for any RoHS compliance documentation relevant to your manufacturing region.

Selection Notes

Select this component when a wide input voltage range up to 42V is required alongside a moderate 1.5A output capability. The adjustable switching frequency allows optimization for either size or efficiency based on external inductor selection. Consider the low quiescent current for battery-operated applications where standby power consumption is critical. Evaluate the thermal performance in your specific enclosure environment given the small package size.

Part Context

This part belongs to the LT8608 family of high-efficiency synchronous buck regulators designed for space-constrained applications. It shares architectural similarities with other members of the series but is distinguished by its specific pin count and current rating. The MSOP-10 package offers a compact solution compared to larger QFN or DFN options found in higher-current variants within the same product line.

Replacement Considerations

LT8608HMSE#PBF is a verified alternative within the same family offering similar electrical characteristics.