Micrel MIC45208 Скачать руководство пользователя | Manualshive

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Micrel, Inc.

MIC45208 Evaluation Board

August 19, 2015

7

Revision 2.0

PCB Layout Recommendations

MIC45208 Evaluation Board Top Layer

MIC45208 Evaluation Board Copper Layer 2

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Содержание MIC45208

Страница 1: ...current capability No external linear regulator is required to power the internal biasing of the IC because the MIC45208 has an internal PVDD LDO In applications where VIN 5 5V PVDD should be tied to...

Страница 2: ...e All other voltages not listed above can be set by modifying RBOTTOM value according to REF OUT REF BOTTOM V V V R1 R Eq 2 Note that the output voltage should not be set to exceed 5V Table 1 Typical...

Страница 3: ...up sequence including the soft start reduces the stress on the switching FETs and protects the load and supply for severe short conditions The short circuit current limit can be programmed by using th...

Страница 4: ...s on VIN VOUT and load conditions Figure 2 Switching Frequency Adjustment Equation 5 illustrates the estimated switching frequency 2 R 1 R 2 R f f O SW Eq 5 Where fO 600kHz R1 100k recommended R2 is s...

Страница 5: ...DK 10 F 50V 1206 X5R 10 MLCC 2 C2X C9 C10 C7 C7X C13 Open 6 C4 C8 C14 GRM188R71H104KA93D Murata 2 0 1 F 50V X7R 0603 10 MLCC 3 C5 C6 C3216X5R0J107M160AB TDK 100 F 6 3V X5R 1206 20 MLCC 2 C11 GRM1885C1...

Страница 6: ...e 8 06k 1 1 10W 0603 Thick Film 1 R7 CRCW06034K75FKEA Vishay Dale 4 75k 1 1 10W 0603 Thick Film 1 R8 CRCW06033K24FKEA Vishay Dale 3 24k 1 1 10W 0603 Thick Film 1 R9 CRCW06031K91FKEA Vishay Dale 1 91k...

Страница 7: ...Micrel Inc MIC45208 Evaluation Board August 19 2015 7 Revision 2 0 PCB Layout Recommendations MIC45208 Evaluation Board Top Layer MIC45208 Evaluation Board Copper Layer 2...

Страница 8: ...Micrel Inc MIC45208 Evaluation Board August 19 2015 8 Revision 2 0 PCB Layout Recommendations Continued MIC45208 Evaluation Board Copper Layer 3 MIC45208 Evaluation Board Bottom Layer...

Страница 9: ...intended as a warranty and Micrel does not assume responsibility for its use Micrel reserves the right to change circuitry specifications and descriptions at any time without notice No license whethe...

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