RT7296F

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DS7296F-06

September

2023

8

Typical Application Circuit

VIN

EN/SYNC

GND

BOOT

FB

SW

VOUT

VIN

4.5V to 17V

RT7296F

Enable

R5

16k

R1

40.2k

R2

13k

PVCC

PG

C3

0.1

μF

C4

44

μF

C1

22

μF

C2

0.1

μF

L1

4.7

μH

R6

10

2

1

3

4

5

6

7

8

R3

100k

Cff

15pF

Table 1. Suggested Component Values

VOUT (V)

R1 (k

)

R2 (k

)

R5 (k

)

Cff (pF)

C2 (

F)

C4 (

F)

L1 (

H)

1.0

20.5

84.5

82

15

0.1

44

2.2

3.3

40.2

13

16

15

0.1

44

4.7

5.0

40.2

7.68

16

15

0.1

44

4.7

Note: Where the C4 value means the effective output capacitance. Design engineer must be aware that ceramic

capacitance varies a great deal with the size, operating voltage and temperature. The variation should be taken into

the design consideration of control loop bandwidth. A rule-of-the-thumb is to design the RT7296F control loop

bandwidth below 60kHz by changing the value of R5. Generally, increase the value of R5 if a de-rated capacitance

is used.