LT LTC3414IFE

降压降压2.25V5.5V4A

Overview

The LTC3414IFE 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 4A of output current. The internal synchronous power switch with 67mΩ on-resistance increases efficiency and eliminates the need for an external Schottky diode. Switching frequency is set by an external resistor or can be synchronized to an external clock. 100% duty cycle provides low dropout operation extending battery life in portable systems. OPTI-LOOP® compensation allows the transient response to be optimized over a wide range of loads and output capacitors.

The LTC3414IFE 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. In Burst Mode operation, external control of the burst clamp level allows the output voltage ripple to be adjusted according to the requirements of the application.

Features

Bulk Package
Positive Output Configuration
Buck Topology
Adjustable Output Type
1 Number of Outputs
2.25V Voltage - Input (Min)
5.5V Voltage - Input (Max)
0.8V Voltage - Output (Min/Fixed)
5V Voltage - Output (Max)
4A Current - Output
1MHz Frequency - Switching
Yes Synchronous Rectifier
Surface Mount Mounting Type