L6997S

20/30

Figure 17. L6997S Schematic diagram

7.1 UMPERS CONNECTION

Table 10. Jumper connection with integrator

*This component is not necessary, depends from the output ESR capacitor. See the integrator section.

Table 11. Jumper connection without integrator

Component

Connection

C4

Mounted

C7

Mounted*

INT

Close

NOINT

Open

Component

Connection

C4

Not mounted

C7

Not Mounted

INT

Open

NOINT

Close

PGND

PHASE

GNDSENSE

VSENSE

LGATE

BOOT

HGATE

VDR

FB

OSC

VCC

VREF

NOSKIP

OVP

PGOOD

SHDN

V

CC

L6997

GND

SS

INT

R10

R9

C13, C14, C15,

C16, C17, C18

R3

R4

C5

R5

C22

C3

D1

C19

Q1, Q2, Q3

Q4, Q5, Q6

D2

C7 C8 C9

C10, C11

C12

C20

C21

R8

C23

NOINT

INT

NOINT

INT

C6

C25

C4

C7

C

N

R

N

TP1

TP2

TP3

R12

R11 R7

R6

V

OUT

C2

SW1

R13

C24

L

V

in

L6997S