L6722TR datasheet(4/34 Pages) STMICROELECTRONICS

Part #	L6722TR

Description	3 Phase controller for DC/DC converters

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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4 / 34 page

1 Typical application circuit and block diagram

L6722

4/34

1

Typical application circuit and block diagram

1.1

Application circuit

Figure 1.

Typical application circuit

L1

7

8

9

BOOT1

UGATE1

PHASE1

LGATE1

3

ISEN1

31

RISEN

HS1

LS1

L2

10

11

12

BOOT2

UGATE2

PHASE2

LGATE2

5

ISEN2

30

HS2

LS2

L3

13

14

15

BOOT3

UGATE3

PHASE3

LGATE3

6

ISEN3

29

RISEN

HS3

LS3

PGOOD

16

COUT

Vcc_core

LOAD

VSEN

34

FB

35

RFB

COMP

36

RF

CF

REF_IN

19

1, 26

OSC/INH/FLT

18

PGND

4

SGND

VCC

2

LIN

PGOOD

VIN

GNDIN

CIN

L6722 REFERENCE SCHEMATIC

RISEN

REF_OUT

20

CS+

32

CS-

33

FBG

FBR

28

27

to BOOT1

to BOOT2

to BOOT3

ROSC

R1

R2

R1

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