LT LT3470IDDB#PBF

降压降压4V40V200mA

Overview

The LT3470IDDB is a micropower step-down DC/DC converter that integrates a 300mA power switch, catch diode and boost diode into low profile 3mm x 2mm DD and ThinSOT™ packages. The LT3470IDDB combines Burst Mode and continuous operation to allow the use of tiny inductor and capacitors while providing a low ripple output to loads of up to 200mA.

With its wide input range of 4V to 40V, the LT3470IDDB can regulate a wide variety of power sources, from 2-cell Li-Ion batteries to unregulated wall transformers and leadacid batteries. Quiescent current in regulation is just 26µA in a typical application while a zero current shutdown mode disconnects the load from the input source, simplifying power management in battery-powered systems. Fast current limiting and hysteretic control protects the LT3470IDDB and external components against shorted outputs, even at 40V input.

Features

Bulk Package
Positive Output Configuration
Buck Topology
Adjustable Output Type
1 Number of Outputs
4V Voltage - Input (Min)
40V Voltage - Input (Max)
1.25V Voltage - Output (Min/Fixed)
16V Voltage - Output (Max)
200mA Current - Output
No Synchronous Rectifier
Surface Mount Mounting Type