LINEAR TECHNOLOGY LT1619 PWM Controller Manual

Update: 28 September, 2023

The LT1619 is a low voltage current mode PWM controller designed for implementing current mode DC/DC converters with minimum external parts. It operates with input voltages ranging from 1.9V to 18V and is suitable for a variety of battery-powered and distributed DC/DC converters. The controller features an internal rail-to-rail N-channel MOSFET driver that can operate either from the input in the nonbootstrapped mode or from the output in bootstrapped operation. It is designed to drive a low side power transistor in boost, SEPIC, flyback, and other topologies. The converter efficiency is improved at heavy loads with a 53mV current sense voltage and at light load with Burst Mode operation. The operating frequency is internally set at 300kHz and can be externally synchronized up to 500kHz. The LT1619 is available in 8-lead MSOP and SO packages with a no load quiescent current of 140µA and a shutdown current of 15µA.

Brand: LINEAR

File format: PDF

Size: 258 KB

MD5 Checksum: 107785B131FAAFE46A3037154709BDDC

Publication date: 12 April, 2012

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