Analog Devices LT8355

Description

The LT®8335 is a current mode DC/DC converter capable of generating either positive or negative output voltages using a single feedback pin. It can be configured as a boost, SEPIC or inverting converter consuming as low as 6µA of quiescent current. Low ripple Burst Mode operation maintains high efficiency down to very low output currents while keeping the output ripple below 15mV in a typical application. The internally compensated current mode architecture results in stable operation over a wide range of input and output voltages. Integrated soft-start and frequency foldback functions are included to control inductor current during start-up. The 2MHz operation combined with the small 8-lead DFN package, enables low cost, area efficient solutions.

Features

• 3V to 25V Input Voltage Range
• Ultralow Quiescent Current and Low Ripple Burst Mode® Operation: IQ = 6µA
• 2A, 28V Power Switch
• Positive or Negative Output Voltage Programming with a Single Feedback Pin
• Fixed 2MHz Switching Frequency
• Programmable Undervoltage Lockout (UVLO)
• Internal Compensation and Soft-Start
• Low Profile (0.75mm) 8-Lead (3mm × 2mm) DFN Package

Typical applications

• Medical Diagnostic Equipment
• Telecom
• Portable Electronics
• Industrial and Automotive

More information

• Datasheet