A6986H datasheet(67/71 Pages) STMICROELECTRONICS

67 / 71 page

5.13

Thermal shutdown............................................................. 36

Closing the loop ..................................................................37

6.1

GCO(s) control to output transfer function ......................................... 37

6.2

Error amplifier compensation network ............................................ 38

6.3

Voltage divider ................................................................ 39

6.4

Total loop gain ................................................................ 40

6.5

Compensation network design .................................................. 41

Application notes .................................................................43

7.1

Output voltage adjustment ...................................................... 43

7.2

Switching frequency ........................................................... 43

7.3

MLF pin ..................................................................... 43

7.4

Voltage supervisor............................................................. 43

7.5

Synchronization (LNM) ......................................................... 45

7.5.1

Embedded master - slave synchronization .................................... 45

7.5.2

External synchronization signal............................................. 47

7.6

Design of the power components ................................................ 50

7.6.1

Input capacitor selection .................................................. 50

7.6.2

Inductor selection ....................................................... 51

7.6.3

Output capacitor selection................................................. 51

Application board.................................................................53

Efficency curves..................................................................58

Package information..............................................................62

10.1

HTSSOP16 package information ................................................ 62

Ordering information .............................................................64

Revision history .......................................................................65

A6986H

Contents

DS12861 - Rev 3

page 67/71

A6986H Datasheet(PDF) 67 Page - STMicroelectronics

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