L5973D Ver la hoja de datos (PDF) - STMicroelectronics
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L5973D Datasheet PDF : 10 Pages
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L5973D
APPLICATION CIRCUIT
In figure 6 is shown the demo board application circuit, where the input supply voltage, Vcc, can range from 4.4V
to 25V due to the rated voltage of the input capacitor and the output voltage is adjustable from 1.235V to Vcc.
Figure 6. Demo 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 1. Component List
Reference
Part Number
C1
C2
POSCAP 6TPB330M
C3
C1206C221J5GAC
C4
C1206C223K5RAC
R1
R2
R3
D1
STPS2L25U
L1
DO3316P-153
Description
10µF, 25V
330µF, 6.3V
220pF, 5%, 50V
22nF, 10%, 50V
5.6K, 1%, 0.1W 0603
3.3K, 1%, 0.1W 0603
4.7K, 1%, 0.1W 0603
2A, 25V
15µH, 3A
Manufacturer
TOKIN
Sanyo
KEMET
KEMET
Neohm
Neohm
Neohm
ST
COILCRAFT
5/10
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