LTC3412AEFE#TRPBF

LTC3412A is a high efficiency monolithic synchronous, step-down DC/DC converter utilizing a constant frequency, current mode architecture. It operates from an input voltage range of 2.25V to 5.5V and provides a regulated output voltage from 0.8V to 5V while delivering up to 3A of output current. Internal synchronous power switch with 77mohm on-resistance increases efficiency and eliminates need for an external schottky diode. Switching frequency is set by external resistor or can be synchronized to external clock. OPTI-LOOP® compensation allows transient response to be optimized over a wide range of loads and output capacitors. It can be configured for either burst mode operation or forced continuous operation. Forced continuous operation reduces noise and RF interference while burst mode operation provides high efficiency by reducing gate charge losses at light loads. Applications include point-of-load regulation, notebook computers, portable instruments, distributed power systems.

• 100% duty cycle provides low dropout operation extending battery life in portable systems
• High efficiency up to 95%, low quiescent current of 64µA
• Low RDS(ON) internal switch of 77mohm
• Programmable frequency range from 300KHz to 4MHz
• ±2% output voltage accuracy, 0.8V reference allows low output voltage
• Selectable forced continuous/burst mode operation with adjustable burst clamp
• Synchronizable switching frequency
• Low dropout operation: 100% duty cycle, power good output voltage monitor
• Overtemperature protected
• 16-lead plastic TSSOP package, -40°C to 125°C temperature range

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