 |
поискавой системы для электроныых деталей |
|
|
поискавой системы для электроныых деталей |
|
LP87332D датащи(PDF) 56 Page - Texas Instruments |
|
|
|
|||||||||||||||||||||||||||||
LP87332D датащи(HTML) 56 Page - Texas Instruments |
|
|
56 / 74 page  SW_B0 VIN_B0 VIN_B1 VANA VIN FB_B0 VOUT_B0 LOAD SDA SCL nINT CLKIN (GPO2) GNDs EN GPO SW_B1 FB_B1 VOUT_B1 LOAD PGOOD VOUT_LDO1 VOUT_LDO0 VIN_LDO0 VIN_LDO1 VOUT_LDO0 VOUT_LDO1 Copyright © 2017, Texas Instruments Incorporated COUT_BUCK0 COUT_BUCK1 COUT_LDO1 COUT_LDO0 CIN_LDO1 CIN_LDO0 CIN_BUCK0 CIN_BUCK1 CANA L0 L1 56 LP87332D SNVSAU6 – NOVEMBER 2017 www.ti.com Product Folder Links: LP87332D Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated 8 Application and Implementation NOTE Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality. 8.1 Application Information The LP87332D is a power management unit including two step-down regulators, two linear regulators, and two general-purpose digital output signals. 8.2 Typical Application Figure 25. LP87332D Typical Application 8.2.1 Design Requirements 8.2.1.1 Inductor Selection The inductors L0 and L1 are shown in the Typical Application. The inductance and DCR of the inductor affects the control loop of the buck regulator. TI recommends using inductors similar to those listed in Table 8. Pay attention to the saturation current and temperature rise current of the inductor. Check that the saturation current is higher than the peak current limit and the temperature rise current is higher than the maximum expected rms output current. Minimum effective inductance to ensure good performance is 0.22 μH at maximum peak output current over the operating temperature range. DC resistance of the inductor must be less than 0.05 Ω for good efficiency at high-current condition. The inductor AC loss also affects conversion efficiency. Higher Q factor at switching frequency usually gives better efficiency at light load to middle load. Shielded inductors are preferred as they radiate less noise. |
|
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
