L5972 Просмотр технического описания (PDF) - STMicroelectronics
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L5972 Datasheet PDF : 10 Pages
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L5972D
APPLICATION CIRCUIT
In figure 7 is shown the demo board application circuit for the device in SMD version, 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 7. Demo board Application Circuit
VIN = 4.4V to 25V
VCC
8
C1
10µF
25V
CERAMIC
COMP
4
C4
6
22nF
C3
220pF
R3
4.7K
OUT
1
L5972D
5
237
FB
GND
L1 33µH
D1
STPS2L25U
VOUT=3.3V
R1
5.6K
R2
3.3K
C2
100µF
10V
D03IN1438
Table 1. Component List
Reference
Part Number
C1
C2
POSCAP 10TPB100M
C3
C1206C221J5GAC
C4
C1206C223K5RAC
R1
R2
R3
D1
STPS2L25U
L1
DO3316P-333
Description
10µF, 25V
100µF, 10V
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
33µH, 2.1A
Manufacturer
TOKIN
Sanyo
KEMET
KEMET
Neohm
Neohm
Neohm
ST
COILCRAFT
5/10
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