E-L293DD Datasheet, PDF (9/17 Pages) STMicroelectronics – 2.5 A switch step down switching regulator

L5973D
5
Application circuit
Application circuit
In figure 6 is shown the demonstration board application circuit, where the input supply
voltage, V_CC, can range from 4 V to 25 V due to the rated voltage of the input capacitor and
the output voltage is adjustable from 1.235 V to V_CC.
Figure 12. Demonstration board application circuit
VREF
3.3V
6
1
VIN = 4.4V to 25V
VCC
8 _L5973D
SYNC. 2
C1
10µF
25V
CERAMIC
COMP
C4
22nF
4
3
INH
C3
220pF
R3
4.7K
5
7
GND
OUT ^{L1 15µH}
VOUT=3.3V
D1
STPS2L25U ^R1
5.6K
FB
R2
3.3K
C2
330µF
6.3V
D03IN1440
Table 5. 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
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