The LTC3119 is housed in the thermally enhanced 28-lead 4mm x 5mm QFN and TSSOP packages. The QFN is offered in both E and I grades, and the TSSOP is offered in E, I, H and MP grades. E & I grades have specified operating junction temperature of -40°C to +125°C, H grade is -40°C to +150°C, and MP grade is -55°C to +125°C.