link to page 1 link to page 1 link to page 1 link to page 1 link to page 2 link to page 3 link to page 4 link to page 5 link to page 6 link to page 8 link to page 8 link to page 9 link to page 9 link to page 9 link to page 10 link to page 11 link to page 11 link to page 12 link to page 12 link to page 13 link to page 15 link to page 15 link to page 17 Data SheetLT4422TABLE OF CONTENTS Features .. 1 Applications ... 1 General Description ... 1 Simplified Application Diagram .. 1 Revision History ... 2 Specifications ... 3 Absolute Maximum Ratings .. 4 Pin Configurations and Function Descriptions .. 5 Typical Performance Characteristics ... 6 Block Diagram .. 8 Theory of Operation .. 8 Applications Information .. 9 USB PD 3.0 and Back-Up Battery Supply ... 9 Automatic Power Path Control .. 9 5V Power Ride-Through .. 10 High-Voltage Diode-OR ... 11 Layout and Thermal Considerations ... 11 Typical Application .. 12 High-Load Current Application .. 12 Reverse Input Voltage Protection .. 13 Related Parts .. 15 Outline Dimensions ... 15 Ordering Guide ... 17 REVISION HISTORYREVISIONREVISIONPAGESDESCRIPTIONNUMBERDATECHANGED 0 09/24 Initial Release ꟷ analog.com Rev. 0 2 of 18 Document Outline Features Applications General Description Simplified Application Diagram TABLE OF CONTENTS Revision History Specifications Absolute Maximum Ratings Pin Configurations and Function Descriptions Typical Performance Characteristics Block Diagram Theory of Operation Applications Information USB PD 3.0 and Back-Up Battery Supply Automatic Power Path Control 5V Power Ride-Through High-Voltage Diode-OR Layout and Thermal Considerations Typical Application High-Load Current Application Reverse Input Voltage Protection Related Parts Outline Dimensions Ordering Guide