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LMK316BJ475ML Datasheet(PDF) 6 Page - AUK corp |
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LMK316BJ475ML Datasheet(HTML) 6 Page - AUK corp |
6 / 6 page KSI-2012-006 6 S52xxM Output Capacitor Selection AUK strongly recommends the use of low ESR(Equivalent series resistance) ceramic capacitors for Cout and CN . The S52xxM is stable with low ESR capacitor (as low as zero Ω). The value of the output capacitor should be 1uF or higher. Either ceramic chip or a tantalum capacitor may be used at the output. Use of ceramic chip capacitors offer significant advantages over tantalum capacitors. A Ceramic capacitor is typically cheaper than a tantalum capacitor, it usually has a smaller footprint, lower height, and lighter weight than a tantalum capacitor. Furthermore, unlike tantalum capacitors which are polarized and can be damaged if connected incorrectly, ceramic capacitors are non- polarized. Low value ceramic chip capacitors with X5R or X7R dielectric are available in the 100pF to 4.7uF range. Beware of using ceramic capacitors with Y5V dielectric since their ESR increases significantly at cold temperatures. Figure 9 shows a list of recommended ceramic capacitors for use at the output of S52xxM. If a tantalum output capacitor is used then for stable operation AUK recommends a low ESR tantalum capacitor with maximum rated ESR at or below 0.4Ω. Low ESR tantalum capacitors, such as the TPS series from AVX Corporation (www.avxcorp.com) or the T495 series from Kemet (www.kemet.com) may be used. In applications where a high output surge current can be expected, use a high value but low ESR output capacitor for superior load transient response. The S52xxM is stable with no load. COUT Capacitor Size IOUT Dielectric Part Number Capacitor Vendor 1 µF 0805 0 to 150mA X5R C2012X5R1A105KT TDK ′′ 0805 ′′ X7R GRM40X7R105K010 muRata ′′ 0805 ′′ X7R LMK212BJ105KG Taiyo-Yuden ′′ 1206 ′′ X7R GRM42-6X7R105K016 muRata ′′ 1206 ′′ X7R EMK316BJ105KL Taiyo-Yuden ′′ 1206 ′′ X5R TMK316BJ105KL Taiyo-Yuden 2.2 µF 0805 0 to 150mA X5R GRM40X5R225K 6.3 muRata ′′ 0805 ′′ X5R C2012X5R0J225KT TDK ′′ 1206 ′′ X5R EMK316BJ225ML Taiyo-Yuden 4.7 µF 1206 0 to 150mA X5R GRM42-6X5R475K010 MuRata ′′ 1206 ′′ X7R LMK316BJ475ML Taiyo-Yuden Fig. 9 |
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