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 5 link to page 5 link to page 5 link to page 6 link to page 7 link to page 11 link to page 12 link to page 12 link to page 13 link to page 13 link to page 14 link to page 14 link to page 16 link to page 17 link to page 17 ADP172Data SheetTABLE OF CONTENTS Features .. 1 Typical Performance Characteristics ..7 Applications ... 1 Theory of Operation .. 11 Typical Application Circuits .. 1 Applications Information .. 12 General Description ... 1 Capacitor Selection .. 12 Revision History ... 2 Undervoltage Lockout ... 13 Specifications ... 3 Enable Feature .. 13 Input and Output Capacitor, Recommended Specifications .. 4 Current Limit and Thermal Overload Protection ... 14 Absolute Maximum Ratings .. 5 Thermal Considerations .. 14 Thermal Data .. 5 Printed Circuit Board Layout Considerations ... 16 Thermal Resistance .. 5 Outline Dimensions ... 17 ESD Caution .. 5 Ordering Guide .. 17 Pin Configuration and Function Descriptions ... 6 REVISION HISTORY 5/14—Rev. D to Rev. E Changes to Figure 38 (Outline Dimensions Not Changed) ... 17 Changes to Ordering Guide .. 17 8/12—Rev. C to Rev. D Changes to Ordering Guide ... 17 4/12—Rev. B to Rev. C Updated Outline Dimensions .. 17 Changes to Ordering Guide ... 17 5/10—Rev. A to Rev. B Changes to Figure 1 .. 1 4/10—Rev. 0 to Rev. A Changes to Ordering Guide .. 17 2/10—Revision 0: Initial Version Rev. E | Page 2 of 20 Document Outline Features Applications Typical Application Circuits General Description Table of Contents Revision History Specifications Input and Output Capacitor, Recommended Specifications Absolute Maximum Ratings Thermal Data Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Applications Information Capacitor Selection Output Capacitor Input Bypass Capacitor Input and Output Capacitor Properties Undervoltage Lockout Enable Feature Current Limit and Thermal Overload Protection Thermal Considerations Printed Circuit Board Layout Considerations Outline Dimensions Ordering Guide