What this part does — push-button on/off control with a wide input range
The LTC2952IF#PBF is a push-button on/off controller from Analog Devices' PowerPath™ series. It manages system power-up and power-down sequencing from a single momentary or latching push-button input, drawing only 65 µA from a 2.7V to 28V supply rail. The wide input range makes it suitable for industrial equipment, battery-powered instruments, and any system where a clean, debounced on/off signal is needed without a dedicated microcontroller GPIO.
Supply range and quiescent current — why they matter for your BOM
The 2.7V to 28V supply range covers everything from a single lithium-ion cell (3.0V nominal) to a 24V industrial rail. At 65 µA quiescent current, this controller adds negligible drain to an always-on battery — critical for portable instruments where every microamp extends standby life. The industrial temperature grade (-40°C to 85°C) means it can sit in an outdoor telecom enclosure or an engine-bay control module without derating.
Package and assembly — 20-TSSOP footprint
Housed in a 20-TSSOP (4.40mm width) surface-mount package, the LTC2952IF#PBF fits on compact PCBs. The 0.173" body length and 0.65mm pitch are standard for automated assembly. No exposed pad means thermal management is straightforward — the 65 µA draw generates negligible heat.
Lifecycle and compliance — active, ROHS3, no end-of-life risk
The LTC2952IF#PBF is listed as Active with ROHS3 compliance. There is no last-time-buy notice or successor announced, so it remains a safe choice for both new designs and production replenishment. The ROHS3 status covers the EU RoHS exemption categories through 2024 and beyond.