Datasheet ADP122, ADP123 (Analog Devices) - 2

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ADP122/ADP123 Data Sheet TABLE OF CONTENTS
Features .. 1 Theory of Operation .. 11 Applications ... 1 Applications Information .. 12 General Description ... 1 Capacitor Selection .. 12 Typical Application Circuits .. 1 Undervoltage Lockout ... 13 Revision History ... 2 Enable Feature .. 13 Specifications ... 3 Current Limit and Thermal Overload Protection ... 14 Recommended Specifications ... 4 Thermal Considerations .. 14 Absolute Maximum Ratings .. 5 Junction Temperature Calculations For TSOT Package ... 15 Thermal Data .. 5 Junction Temperature Calculations For LFCSP Package .. 17 Thermal Resistance .. 5 Printed Circuit Board Layout Considerations.. 19 ESD Caution .. 5 Outline Dimensions ... 20 Pin Configurations and Function Descriptions ... 6 Ordering Guide .. 21 Typical Performance Characteristics ... 7
REVISION HISTORY 6/12—Rev. D to Rev. E
Added 6-Lead LFCSP Package .. Throughout Changes to Table 3 ... 5 Added Figure 3 and Figure 4 (Renumbered Sequentially) .. 1 Changes to Table 4 ... 5
4/12—Rev. C to Rev. D
Changes to Pin Configuration and Function Descriptions Changes to Ordering Guide ... 21 Section ... 6
4/12—Rev. B to Rev. C
Changes to Thermal Considerations Section ... 14 Added Junction Temperature Calculations for LFCSP Package Changes to Operating Ambient Temperature Range; Section .. 17 Table 3 ... 5 Updated Outline Dimensions .. 20
3/12—Rev. A to Rev. B
Changes to Ordering Guide .. 21 Added VOUT = 2.8 V to Figure 23 Caption.. 9
10/09—Revision 0: Initial Version
Updated Outline Dimensions ... 20
6/11—Rev. 0 to Rev. A
Rev. E | Page 2 of 24 Document Outline Features Applications General Description Typical Application Circuits Revision History Specifications Recommended Specifications Absolute Maximum Ratings Thermal Data Thermal Resistance ESD Caution Pin Configurations 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 Junction Temperature Calculations For TSOT Package Junction Temperature Calculations For LFCSP Package Printed Circuit Board Layout Considerations Outline Dimensions Ordering Guide