Analog Devices / Linear Technology LTC3410ESC6#PBF

Switching Regulator, Current-mode, 0.63A, 2700kHz Switching Freq-Max, CMOS, PDSO6

LTC3410 - 2.25MHz, 300mA Synchronous Step-Down Regulator in SC70

The LTC3410 is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. The device is available in adjustable and fixed output voltage versions. Supply current during operation is only 26µA, dropping to <1µA in shutdown. The 2.5V to 5.5V input voltage range makes the LTC3410 ideally suited for single Li-Ion battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems. Switching frequency is internally set at 2.25MHz, allowing the use of small surface mount inductors and capacitors. The LTC3410 is specifically designed to work well with ceramic output capacitors, achieving very low output voltage ripple and a small PCB footprint. The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode. Low output voltages are easily supported with the 0.8V feedback reference voltage. The LTC3410 is available in a tiny, low profile SC70 package. VOUT Burst Mode LTC3410 Adj. Down To 0.8V Yes LTC3410B Adj. Down To 0.8V No LTC3410-1.875 Fixed 1.875V Yes Applications Cellular Telephones Wireless and DSL Modems Digital Cameras MP3 Players Portable Instruments