STODD03

Typical application

Doc ID 018980 Rev 1

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Typical application

Figure 3.

Application circuit

FB2

L2

C5

V

OUT2

Step Down

Step Up

GND

SW1

Out1

FB1

EN1

R1

R2

IN

L1

V

C1

C3

C2

C4

V

OUT1

Power Switch

Power Switch

Control block

SW2

3.3 V

6.5 V – 14 V

5 V

1,9,11

2

3

10

8

7

15

14

EN2

Step-up

control block

4

6

13

16

5

12

AM09306v1

Table 7.

Component

Value

Recommended part number

C1, C2, C3

10 µF

Murata, GRM21BR61A106KE19L

C4, C5

22 µF

Murata, GRM32ER61C226KE20L

L1

4.7 µH

Coilcraft, LPS6225-472MLB

L2

3.3 µH

Coilcraft, LPS4018-332MLB

R1, R2

33 k

Ω

(2)

1.

The components listed above refer to a typical applications circuit. Operation of the STODD03 is not limited to the choice of

these external components. If a different solution is used, it is recommended to validate the suitability of the external

components by thoroughly testing the application on a PCB evaluation board.

2.

R1 and R2 are calculated according to the following formula: