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L5973D 数据表(PDF) 5 Page - STMicroelectronics

部件名 L5973D
功能描述  2.5A SWITCH STEP DOWN SWITCHING REGULATOR
PDF  10 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L5973D 数据表(HTML) 5 Page - STMicroelectronics

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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
Table 1. Component List
Reference
Part Number
Description
Manufacturer
C1
10
µF, 25V
TOKIN
C2
POSCAP 6TPB330M
330
µF, 6.3V
Sanyo
C3
C1206C221J5GAC
220pF, 5%, 50V
KEMET
C4
C1206C223K5RAC
22nF, 10%, 50V
KEMET
R1
5.6K, 1%, 0.1W 0603
Neohm
R2
3.3K, 1%, 0.1W 0603
Neohm
R3
4.7K, 1%, 0.1W 0603
Neohm
D1
STPS2L25U
2A, 25V
ST
L1
DO3316P-153
15
µH, 3A
COILCRAFT
D03IN1440
8
4
5
1
7
L5973D
C1
10
µF
25V
CERAMIC
C2
330
µF
6.3V
VOUT=3.3V
VIN = 4.4V to 25V
R1
5.6K
R2
3.3K
R3
4.7K
C4
22nF
C3
220pF
3
L1 15
µH
D1
STPS2L25U
COMP
VCC
OUT
FB
GND
INH
2
6
3.3V
SYNC.
VREF



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