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TD1509PR Datasheet(PDF) 10 Page - TECHCODE SEMICONDUCTOR, INC.

Part # TD1509PR
Description  2A 150KHz PWM Buck DC/DC Converter
PDF  17 Pages
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Manufacturer  TECHCODE [TECHCODE SEMICONDUCTOR, INC.]
Direct Link  http://www.techcodesemi.com/
Logo TECHCODE - TECHCODE SEMICONDUCTOR, INC.

TD1509PR Datasheet(HTML) 10 Page - TECHCODE SEMICONDUCTOR, INC.

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December,  20,  2005.                                         Techcode  Semiconductor  Limited                                    www.techcodesemi.com 
10 
Techcode®
2A 150KHz PWM Buck DC/DC Converter
TD1509
DATASHEET
Figure 12. Typical Application of TD1509 For ADJ 
Note:In PCB layout. Reserved an area for CFF
 
Vout
R1
R2
Cf (Operational)
3.3V
1.6K
2.7K
33nf
5V
3.6K
11K
10nf
9V
6.8K
43K
1.5nf
12V
1.5K
13K
1nf
Table 3. Vout VS. R1, R2, Cf Select Table 
Output
Voltage
Input
Voltage
Inductor (L1)
Output Capacitor (Cout)
Through Hole Electrolytic
3.3V
6V ~ 18V
47uh
470uf/25V
6V ~36V
68uh
560uf/25V
5V
8V ~ 18V
33uh
330uf/25V
8V ~36V
47uh
470uf/25V
9V
12V ~18V
47uh
330uf/25V
12V ~36V
47uh
470uf/25V
12V
15V ~ 18V
47uh
220uf/25V
15V ~36V
47uh
330uf/25V
Table 4. Typical Application Buck Regulator Design Procedure 



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