 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
LT1610CS8 Datasheet(PDF) 9 Page - Linear Technology |
|
||||||||||||||||||||||||||||||
LT1610CS8 Datasheet(HTML) 9 Page - Linear Technology |
|
|
9 / 16 page  9 LT1610 APPLICATIONS INFORMATION VOUT 200mV/DIV IDIODE 500mA/DIV SWITCH VOLTAGE 10V/DIV 100ns/DIV 1610 F07 Figure 7. Switching Waveforms Without Ceramic Capacitor C5 VOUT 50mV/DIV IDIODE 500mA/DIV SWITCH VOLTAGE 10V/DIV VIN = 4.1V 100ns/DIV 1610 F08 LOAD = 100mA Figure 8. Switching Waveforms with Ceramic Capacitor C5. Note the 50mV/DIV Scale for VOUT Figure 6. 4-Cell Alkaline to 5V/120mA SEPIC DC/DC Converter It is best to choose the compensation components empiri- cally. Once the power components have been chosen (based on size, efficiency, cost and space requirements), a working circuit is built using conservative (or merely guessed) values of RC and CC. Then the response of the circuit is observed under a transient load, and the compen- sation network is modified to achieve stable operation. Linear Technology’s Application Note 19 contains a de- tailed description of the method. A good starting point for the LT1610 is CC ~ 220pF and RC ~ 220k. All Ceramic, Low Profile Design Large value ceramic capacitors that are suitable for use as the main output capacitor of an LT1610 regulator are now available. These capacitors have very low ESR and there- fore offer very low output ripple in a small package. However, you should approach their use with some caution. Ceramic capacitors are manufactured using a number of dielectrics, each with different behavior across tempera- ture and applied voltage. Y5V is a common dielectric used for high value capacitors, but it can lose more than 80% of the original capacitance with applied voltage and extreme temperatures. The transient behavior and loop stability of the switching regulator depend on the value of the output capacitor, so you may not be able to afford this loss. Other dielectrics (X7R and X5R) result in more stable character- istics and are suitable for use as the output capacitor. The X7R type has better stability across temperature, whereas the X5R is less expensive and is available in higher values. The second concern in using ceramic capacitors is that many switching regulators benefit from the ESR of the SHUTDOWN C2 22 µF 6.3V C1 22 µF 6.3V L1 22 µH L2 22 µH C3 1 µF CERAMIC D1 VOUT 5V 120mA 1610 F06 + + C4 1 µF CERAMIC 1M 324k C1, C2: ALUMINUM ELECTROLYTIC C3 TO C5: CERAMIC X7R OR X5R D1: MBR0520 L1, L2: MURATA LQH3C220 OR SUMIDA CLS62-220 C5 1 µF CERAMIC 65 • • 2 3 4 7 8 1 VIN SW PGND FB SHDN GND COMP LT1610 VC 4 CELLS |
Similar Part No. - LT1610CS8 |
|
Similar Description - LT1610CS8 |
|
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.COM |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List 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 |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
