The LTC3626 synchronous buck regulator with current and temperature monitoring is the first of Linear's SWITCHER+ line of monolithic regulators. It is a high efficiency, monolithic synchronous step-down switching regulator capable of delivering a maximum output current of 2.5A from an input voltage ranging from 3.6V to 20V (circuit shown in Figure 1). The LTC3626 employs a unique controlled on-time/constant-frequency, current-mode architecture, making it ideal for low duty cycle applications and high frequency operation, while yielding fast response to load transients (see Figure 2). It also features mode setting, tracking and synchronization capabilities. The LTC3626's 3mm × 4mm package has such low thermal impedance that it can operate without an external heat sink even while delivering maximum power to the load.
展开▼
