EVAL5981 Datasheet, PDF (2/6 Pages) STMicroelectronics – Internal soft-start and inhibit

EVAL5981
EVAL5981 application circuit and component list
1
EVAL5981 application circuit and component list
Figure 1. Application circuit
VIN=3.3V to 18V
C1
10uF
C6
68nF
VCC
8
INH ₃
GND
7
L59851
6
4
FSW COMP
R5 100K
OUT
1
SYNCH
2
FB
5
C4 10nF
R4 3.9K
C5 150pF
L1 15uH
D1
STPS2L25U
R1 4.99K
Vout=3.3V
C2
22uF
R3 180
R2 1.1K
C3 3.3nF
Table 1. Component list
Reference
Part number
Description
Manufacturer
C1
GRM31CR61E106KA12 10 μF, 25 V
C2
GRM32ER61E226KE15 22 μF, 25 V
MURATA
MURATA
C3
3.3 nF, 50 V
C4
10 nF, 50 V
C5
150 pF, 50 V
C6
68 nF, 25 V
R1
4.99 kΩ, 1 %, 0.1 W 0603
R2
1.1 kΩ, 1 %, 0.1 W 0603
R3
180 Ω, 1 %, 0.1 W 0603
R4
3.9 kΩ, 1 %, 0.1 W 0603
R5
100 kΩ, 1 %, 0.1 W 0603
D1
STPS2L25V
L1
7447779115
2 A, 25 V
15 μH, 20 %, 2.2 A
STMicroelectronics
Wurth elektronik
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