DESCRIPTION
The a high performance buck boost converter that the output voltage can be programmed from 0.9V up to 20V through external resistor.
The XR3651 implements the Buck Boost converter with a single inductor architecture that operates from input voltages above, below or equal to the output voltage. And support 2-switch boost mode for higher efficiency.
The integrated low Rds(on) MOSFET minimizes physical footprint, maximizes efficiency, which reduces the power dissipation. Constant current control is utilized to protect the device from overshooting in unwanted conditions. Built-in loop compensation simplifies the circuit and design.
XR3651 guarantees robustness with under voltage lockout, short circuit protection and thermal protection.
FEATURES
Integrate low RDS (on) power MOSFET
Wide VINrange:3.0V-21V
Wide VO range:0.9V-20V
Compatible with 4-switch buck-boost mode and 2-switch boost mode.
Fixed frequency 450kHz
Programmable input and output current limit
Output Constant Current Control.
Quiescent current: <60uA
Integrate output short protection
Integrate thermal protection
QFN3*4 package
APPLICATIONS
Power bank systems
USB Power Delivery
Industrial applications
Automotive Systems
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