LT1374IS8#PBF

LT ®1374 is a 500kHz monolithic buck mode switching regulator. A 4.5A switch is included on the die along with all the necessary oscillator, control and logic circuitry. High switching frequency allows a considerable reduction in the size of external components. The topology is current mode for fast transient response and good loop stability. A special high speed bipolar process and new design techniques achieve high efficiency at high switching frequency. Efficiency is maintained over a wide output current range by using the output to bias the circuitry and by utilizing a supply boost capacitor to saturate the power switch. It is used in portable computers, battery-powered systems, battery chargers and distributed power.

• Input voltage is 25V
• Adjustable output voltage
• Uses all surface mount components
• Inductor size reduced to 1.8µH
• Saturating switch design: 0.07Ω
• Effective supply current: 2.5mA
• Shutdown current: 20µA
• Cycle-by-cycle current limiting
• Synchronization allows external logic signal to increase internal oscillator from 580kHz to 1MHz
• Full cycle-by-cycle short-circuit protection and thermal shutdown

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party