KB3440 Overview
The kB3440 is a high efficiency, fixed frequency, BuckBoost DC/DC converter that operates from input voltages above, below or equal to the output voltage. The topology incorporated in the IC provides a continuous transfer function through all operating modes, making the product ideal for single lithium-ion, multicell alkaline or NiMH applications where the output voltage is within the battery voltage range. The...
KB3440 Key Features
- Synchronous Rectification: Up to 96% Efficiency
- 40µA Quiescent Current in Burst Mode® Operation
- Up to 600mA Continuous Output Current
- No Schottky Diodes Required (V OUT < 4.3V)
- 2.5V to 5.5V Input and Output Range
- Programmable Oscillator Frequency from 300kHz to 2MHz
- Synchronizable Oscillator
- Burst Mode Enable Control
- 5 µA Shutdown Current
- Small Thermally Enhanced 10-Pin MSOP and (3mm × 3mm) DFN Packages
KB3440 Applications
- Synchronous Rectification: Up to 96% Efficiency
- 40µA Quiescent Current in Burst Mode® Operation
- Up to 600mA Continuous Output Current