Description

The LTC3459 is a low current, high efficiency synchronous boost converter intended for low power, size constrained portable applications. The LTC3459 can be powered from a single lithium ion battery, a 2- to 3-cell stack of Alkaline or Nickel batteries, or any low impedance voltage source between 1.5V and 5.5V. The output is programmable via an external divider between 2.5V and 10V. Although the part is primarily intended for boost applications, VOUT will maintain regulation below VIN (at reduced efficiency).The LTC3459 offers Burst Mode operation with a fixed peak current, providing high conversion efficiency over a wide range of load currents. During start-up, inductor current is controlled preventing the inrush surge current found in many boost converters. In shutdown the output is disconnected from the input and quiescent current is reduced to <1?A.The LTC3459 is offered in low pro?le 6-pin 2mm ? 2mm DFN, 2mm ? 3mm DFN or SOT-23 (ThinSOT) packages, allowing a tiny footprint for the total solution.Applications General Purpose Micropower Boost Digital Cameras PDAs LCD Bias Small OLED Displays Supercap Charging

Type:

Part number: DC703A

More details from Analog Devices Inc.