LT3971EMSE in Linear Tech / ADI LT Series Family
The LT3971EMSE family from Analog Devices (formerly Linear Technology) consists of high-efficiency, monolithic buck switching regulators designed for power-sensitive applications. Operating with an ultralow quiescent current of only 2.8 microamps, these devices maintain regulation under no-load conditions while minimizing battery drain. The family supports input voltages up to 38V and delivers up to 1.2A of output current, making it ideal for always-on industrial and automotive systems requiring high reliability and thermal efficiency in a compact MSOP package.
Variants in This Sub-Family
Variants within the LT3971EMSE sub-family primarily differ based on their packaging options and lead finishes. The 'PBF' suffix denotes a lead-free construction, while variations in the 'E' or 'I' grade designations indicate the operating junction temperature range, typically spanning from -40C to 125C. Some versions may also feature different pinout configurations for fixed versus adjustable output voltages to optimize external component counts.
