Data Sheet

LTC7892

analog.com

Rev. 0

3 of 50

Setting the Output Voltage.................................................................................................................................................................35

RUNx Pins and Undervoltage Lockout...............................................................................................................................................36

Soft Start (SSx Pins) ............................................................................................................................................................................36

INTVCC Regulators (OPTI-DRIVE) .........................................................................................................................................................36

Topside FET Driver Supply (CB)...........................................................................................................................................................38

Minimum On-Time Considerations....................................................................................................................................................39

Fault Conditions: Overtemperature Protection................................................................................................................................39

Phase-Locked Loop and Frequency Synchronization ......................................................................................................................39

Efficiency Considerations ...................................................................................................................................................................39

Checking Transient Response ............................................................................................................................................................40

Design Example...................................................................................................................................................................................41

PCB Board Layout Checklist ...............................................................................................................................................................43

PCB Layout Debugging .......................................................................................................................................................................45

Typical Applications ................................................................................................................................................................................46

Related Parts............................................................................................................................................................................................47

Outline Dimensions .................................................................................................................................................................................48

Ordering Guide.........................................................................................................................................................................................49

REVISION HISTORY

REVISION

NUMBER

REVISION

DATE

DESCRIPTION

PAGES

CHANGED

0

12/24

Initial release

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