LT1129IST in Linear Tech / ADI LT Series Family
The LT1129IST is a series of micropower, low dropout regulators manufactured by Analog Devices (Linear Technology). This family is designed for applications requiring efficient power conversion with a 700mA output capacity and a low dropout voltage of 450mV. Featuring a low quiescent current of 50δA that drops to 16δA in shutdown, these regulators are optimized for battery-powered systems where minimizing standby power consumption is critical for long-term reliability.
Variants in This Sub-Family
Variants within the LT1129IST sub-family are distinguished primarily by their output voltage configurations and packaging options. The LT1129IST-3.3 and LT1129IST-5 provide fixed 3.3V and 5V outputs respectively, simplifying bill-of-materials by eliminating external feedback resistors. The adjustable version allows for a range from 3.75V to 30V. The 'PBF' suffix denotes lead-free, RoHS-compliant manufacturing, which is the standard for modern assembly processes.
