 |
поискавой системы для электроныых деталей |
|
|
поискавой системы для электроныых деталей |
|
AAT2500 датащи(PDF) 20 Page - Advanced Analogic Technologies |
|
|
|||||||||||||||||||||||||||||
AAT2500 датащи(HTML) 20 Page - Advanced Analogic Technologies |
|
|
20 / 26 page  Step-Down Converter Design Example Specifications VOBUCK = 1.8V @ 400mA (adjustable using 0.6V version), Pulsed Load ΔILOAD = 300mA VOLDO = 3.3V @ 300mA VIN = 2.7V to 4.2V (3.6V nominal) FS = 1.0MHz TAMB = 85°C 1.8V Buck Output Inductor (see Table 1) For Sumida inductor CDRH3D16, 4.7µH, DCR = 105m Ω. 1.8V Output Capacitor VDROOP = 0.2V 1 23 1 1.8V · (4.2V - 1.8V) 4.7μH · 1.0MHz · 4.2V 23 RMS I L1 · F · VIN(MAX) = · · 3 · ΔILOAD VDROOP · FS 3 · 0.3A 0.2V · 1MHz COUT = = = 4.5μF · = 63mArms · (VOBUCK) · (VIN(MAX) - VOBUCK) = Pesr = esr · IRMS2 = 5mΩ · (63mA)2 = 20μW V OBUCK V OBUCK 1.8 V 1.8V ΔIL1 = ⋅ 1 - = ⋅ 1 - = 218mA L1 ⋅ F V IN 4.7 μH ⋅ 1.0MHz 4.2V I PKL1 = IOBUCK + ΔIL1 = 0.4A + 0.11A = 0.51A 2 P L1 = IOBUCK 2 ⋅ DCR = 0.4A2 ⋅ 105mΩ = 17mW ⎛ ⎝ ⎞ ⎠ ⎛ ⎝ ⎞ ⎠ L1 = 3 ⋅ VO2 = 3 ⋅ 1.8V = 5.4μH μsec A μsec A AAT2500 1MHz Step-Down Converter/LDO Regulator 20 2500.2006.05.1.16 |
|
|
ссылки URL |
| Вашему бизинису помогли Аллдатащит? [ DONATE ] |
Что такое Аллдатащит | реклама | контакт | Конфиденциальность | Ссылка на техническое описание | обмен ссыками | поиск по производителю 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 |
Russian ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
