E-L5973AD Datasheet, PDF (14/22 Pages) STMicroelectronics – 2 A switch step down switching regulator

Additional features and protections
Figure 8. Demo board application circuit
L5973AD
VIN = 4V to 25V
C1
10μF
25V
CERAMIC
VREF
3.3V
VCC
SYNC.
COMP
C4
22nF
6
1
8 _L5973AD
2
4
3
5
7
INH
GND
C3
220pF
R3
4.7K
OUT ^{L1 15μH}
VOUT=3.3V
D1
STPS2L25U ^R1
5.6K
FB
R2
3.3K
C2
330μF
6.3V
D03IN1454
Table 6. Component List
Reference
Part Number
C1
GRM32DR61E106KA12L
C2
POSCAP 6TPB330M
C3
C1206C221J5GAC
C4
C1206C223K5RAC
R1
R2
R3
D1
STPS2L25U
L1
DO3316P-153
Description
10 μF, 25 V
330 μF, 6.3 V
220 pF, 5%, 50 V
22 nF, 10%, 50 V
5.6 K, 1%, 0.1 W 0603
3.3 K, 1%, 0.1 W 0603
4.7 K, 1%, 0.1 W 0603
2 A, 25 V
15 μH, 3 A
Manufacturer
MURATA
Sanyo
KEMET
KEMET
Neohm
Neohm
Neohm
ST
COILCRAFT
14/22
Doc ID 9552 Rev 9