Data Sheet

ADPL74101

analog.com

Rev. 0

3 of 49

CIN and COUT Selection......................................................................................................................................................................30

Setting the Output Voltage.............................................................................................................................................................31

RUN Pin and Undervoltage Lockout ..............................................................................................................................................31

Soft-Start and Tracking (TRACK/SS Pin) ........................................................................................................................................32

INTVCC Regulators (OPTI-DRIVE) .....................................................................................................................................................33

Topside FET Driver Supply (CB).......................................................................................................................................................35

Minimum On-Time Considerations................................................................................................................................................35

Fault Conditions: Current Limit and Foldback ..........................................................................................................................36

Fault Conditions: Overvoltage Protection.................................................................................................................................36

Fault Conditions: Overtemperature Protection ........................................................................................................................36

Phase-Locked Loop and Frequency Synchronization ...................................................................................................................36

Efficiency Considerations...............................................................................................................................................................37

Checking Transient Response ........................................................................................................................................................38

Design Example ..............................................................................................................................................................................39

PCB Board Layout Checklist...........................................................................................................................................................40

PCB Layout Debugging...................................................................................................................................................................41

Typical Applications............................................................................................................................................................................43

Related Parts.......................................................................................................................................................................................46

Outline Dimensions.............................................................................................................................................................................47

Ordering Guide....................................................................................................................................................................................48