Datasheet ADP2300, ADP2301 (Analog Devices) - 2

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 4 link to page 4 link to page 5 link to page 6 link to page 13 link to page 14 link to page 14 link to page 14 link to page 14 link to page 14 link to page 14 link to page 14 link to page 14 link to page 15 link to page 15 link to page 15 link to page 15 link to page 16 link to page 16 link to page 16 link to page 16 link to page 17 link to page 17 link to page 18 link to page 19 link to page 19 link to page 19 link to page 20 link to page 21 link to page 21 link to page 21 link to page 21 link to page 21 link to page 22 link to page 23 link to page 24 link to page 26 link to page 26
ADP2300/ADP2301 Data Sheet TABLE OF CONTENTS
Features .. 1 Control Loop ... 15 Applications ... 1 Applications Information .. 16 Typical Applications Circuit .. 1 ADIsimPower Design Tool ... 16 General Description ... 1 Programming the Output Voltage ... 16 Revision History ... 2 Voltage Conversion Limitations ... 16 Specifications ... 3 Low Input Voltage Considerations .. 17 Absolute Maximum Ratings .. 4 Programming the Precision Enable ... 17 Thermal Resistance .. 4 Inductor ... 18 ESD Caution .. 4 Catch Diode .. 19 Pin Configuration and Function Descriptions ... 5 Input Capacitor ... 19 Typical Performance Characteristics ... 6 Output Capacitor .. 19 Functional Block Diagram .. 13 Thermal Considerations .. 20 Theory of Operation .. 14 Design Example .. 21 Basic Operation .. 14 Switching Frequency Selection ... 21 PWM Mode ... 14 Catch Diode Selection ... 21 Power Saving Mode .. 14 Inductor Selection .. 21 Bootstrap Circuitry .. 14 Output Capacitor Selection... 21 Precision Enable ... 14 Resistive Voltage Divider Selection .. 22 Integrated Soft Start ... 14 Circuit Board Layout Recommendations ... 23 Current Limit .. 14 Typical Application Circuits ... 24 Short-Circuit Protection .. 15 Outline Dimensions ... 26 Undervoltage Lockout (UVLO) ... 15 Ordering Guide .. 26 Thermal Shutdown ... 15
REVISION HISTORY 11/12—Rev. B to Rev. C
Changes to Ordering Guide .. 26
6/12—Rev. A to Rev. B
Change to Features Section ... 1 Added ADIsimPower Design Tool Section ... 16
6/10—Rev. 0 to Rev. A
Changes to Figure 54 .. 25 Changes to Ordering Guide .. 26
2/10—Revision 0: Initial Version
Rev. C | Page 2 of 28 Document Outline Features Applications Typical Applications Circuit General Description Revision History Specifications Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Functional Block Diagram Theory of Operation Basic Operation PWM Mode Power Saving Mode Bootstrap Circuitry Precision Enable Integrated Soft Start Current Limit Short-Circuit Protection Undervoltage Lockout (UVLO) Thermal Shutdown Control Loop Applications Information ADIsimPower Design Tool Programming the Output Voltage Voltage Conversion Limitations Low Input Voltage Considerations Programming the Precision Enable Inductor Catch Diode Input Capacitor Output Capacitor Thermal Considerations Design Example Switching Frequency Selection Catch Diode Selection Inductor Selection Output Capacitor Selection Resistive Voltage Divider Selection Circuit Board Layout Recommendations Typical Application Circuits Outline Dimensions Ordering Guide