Os motores de busca de Datasheet de Componentes eletrônicos |
|
TS3552CSRLG Folha de dados(PDF) 5 Page - Taiwan Semiconductor Company, Ltd |
|
TS3552CSRLG Folha de dados(HTML) 5 Page - Taiwan Semiconductor Company, Ltd |
5 / 11 page TS3552 2A/350kHz Synchronous Buck DC/DC Converter 5/11 Version: B11 Application Information Setting Output Voltage The output voltage is set using a resistive divider from the output to FB. The FB pin regulated voltage is 0.925V. Thus the output voltage is: R2 recommended value is 10K ~30K , so R1 is determined by: R1 = 10.81 x (VOUT – 0.925) K Recommended Component Selection VIN (V) VOUT (V) R1 (K ) R2 (K ) R3 (K ) C3 (nF) L1 (µH) COUT (µF) 12 5 44.1 10 2.2 3.3 15 22 X 1 5 or 12 3.3 25.7 10 2.2 3.3 10 22 X 1 5 or 12 1.8 9.5 10 2.2 3.3 4.7 22 X 1 5 or 12 1.2 3 10 2.2 3.3 3.3 22 X 1 5 or 12 1 0.81 10 2.2 3.3 2.2 22 X 1 Selecting Inductor The inductor selection depends on the current ripple of inductor, the input voltage and the output voltage. Accepting a large current ripple of inductor allows the use of a smaller inductance. However, higher current ripple of inductor can cause higher output ripple voltage and large core loss. By setting an acceptable current ripple of inductor, a suitable inductance can be obtained from above formula. In addition, it is important to ensure the inductor saturation current exceeds the peak value of inductor current in application to prevent core saturation. The peak value of inductor current can be calculated according to the following formula. Soft-Start The TS3552 provides the soft-start function. Initially, the voltage at SS pin is 0V. Then an internal current source of 6 A (typ.) charges an external soft -start capacitor. During the soft-start period, the voltage at SS pin will limit the feedback threshold voltage at FB pin. When the voltage at SS pin is higher than 0.925V, the feedback threshold voltage at FB pin reaches the desired value. The soft-start time can be calculated in accordance with the following formula: The soft-start capacitor is discharged to GND when the EN pin is connected to GND |
Nº de peça semelhante - TS3552CSRLG |
|
Descrição semelhante - TS3552CSRLG |
|
|
Ligação URL |
Privacy Policy |
ALLDATASHEETPT.COM |
ALLDATASHEET é útil para você? [ DONATE ] |
Sobre Alldatasheet | Publicidade | Contato conosco | Privacy Policy | roca de Link | Lista de Fabricantes All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |