RT6296A 参数 Datasheet PDF下载

RT6296A

Typical Application Circuit

V

IN

4.5V to 17V

2

C1

22μF

6

7

C2

0.1μF

R3

91k

R4

10k

EN/SYNC

PVCC

R5

33k

R1

40.2k

R2

13k

SW

3

RT6296A

5

BOOT

VIN

C3

0.1μF

R6

L1

10

5.6μH

V

OUT

C

FF

C4

44μF

Enable

1 TTH

GND

4

FB

8

Table 1. Suggested Component Values

V

OUT

(V)

1.0

3.3

5.0

R1 (k)

20.5

40.2

40.2

R2 (k)

84.5

13

7.68

R5 (k)

82

33

33

C

ff

(pF)

15

15

15

C4 (F)

44

44

44

L1 (H)

2.2

5.6

5.6

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 RT6296A control loop

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

is used.

Copyright © 2018 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

DS6296A-04

January 2018

www.richtek.com

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