L5983 查看數據表（PDF） - STMicroelectronics

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L5983

2A step-down switching regulator

STMicroelectronics 

Application informations

5.7

Application circuit

In Figure 18 the demo board application circuit is shown.

Figure 18. Demo board application circuit

L5983

VIN=3.3V to 18V

C1

10uF

C6

68nF

VCC

8

INH 3

GND

7

L5983

6

4

FSW COMP

OUT

1

SYNCH

2

FB

5

C4 10nF

R4 4.99K

C5 100pF

L1 15uH

D1

STPS2L25U

R1 4.99K

Vout=3.3V

C2

22uF

R3 150

R2 1.1K

C3 3.3nF

Table 8. Component list

Reference

Part number

Description

C1

GRM31CR61E106KA12

10µF, 25V

C2

GRM31CR61C226KE15B

22µf, 16V

C3

3.3 nF, 50V

C4

10 nF, 50V

C5

100 pF, 50V

C6

68 nF, 25V

R1

4.99 kΩ, 1%, 0.1W 0603

R2

1.1 kΩ, 1%, 0.1W 0603

R3

150 Ω, 1%, 0.1W 0603

R4

4.99 kΩ, 1%, 0.1W 0603

R5

N.C.

L1

744066150

15 uH, 30%, 3.25 A

D1

STPS2L25V

2A, 25V

Manufacturer

Murata

Murata

Wurth Elektronik

STMicroelectronics

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