データシートサーチシステム |
|
7440530047 データシート(PDF) 9 Page - Skyworks Solutions Inc. |
|
7440530047 データシート(HTML) 9 Page - Skyworks Solutions Inc. |
9 / 19 page 9 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201998B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 20, 2013 AAT1162 12V, 1.5A Step-Down DC/DC Converter DATA SHEET Functional Description The AAT1162 is a current-mode step-down DC/DC con- verter that operates over a wide 4V to 13.2V input volt- age range and is capable of supplying up to 1.5A to the load with the output voltage regulated as low as 0.6V. Both the P-channel power switch and N-channel syn- chronous rectifier are internal, reducing the number of external components required. The output voltage is adjusted by an external resistor divider; fixed output voltage versions are available upon request. The regula- tion system is externally compensated, allowing the cir- cuit to be optimized for each application. The AAT1162 includes cycle-by-cycle current limiting, frequency fold- back for improved short-circuit performance, and ther- mal overload protection to prevent damage in the event of an external fault condition. Control Loop The AAT1162 regulates the output voltage using con- stant frequency current mode control. The AAT1162 monitors current through the high-side P-channel MOSFET and uses that signal to regulate the output volt- age. This provides improved transient response and eases compensation. Internal slope compensation is included to ensure the current “inside loop” stability. Functional Block Diagram Control Logic + - LDO + - Reference Note 1 FB EN AGND DGND PGND LX IN AIN LDO COMP Note 1: For fixed output voltage versions, FB is connected to the error amplifier through the resistive voltage divider shown. . + - Current Sense Amp Error Amp Current Mode Comparator |
同様の部品番号 - 7440530047 |
|
同様の説明 - 7440530047 |
|
|
リンク URL |
プライバシーポリシー |
ALLDATASHEET.JP |
ALLDATASHEETはお客様のビジネスに役立ちますか? [ DONATE ] |
Alldatasheetは | 広告 | お問い合わせ | プライバシーポリシー | リンク交換 | メーカーリスト 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 |