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AS1346 Datenblatt(PDF) 9 Page - ams AG |
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AS1346 Datenblatt(HTML) 9 Page - ams AG |
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9 / 16 page ![]() www.ams.com/DC-DC_Step-Down Revision 1.10 9 - 16 AS1346-49 Datasheet - Detailed Description 8 Detailed Description The AS1346, AS1347, AS1348, AS1349 family is a high-efficiency buck converter that uses a constant-frequency current-mode architecture. The device contains two internal MOSFET switches and is available with a fixed output voltage (see Ordering Information on page 15). Figure 17. AS1346 - Block Diagram Mosfet Control Logic Shutdown Control Main Control Soft Start Current Sense PVIN VDD FB1 EN1 SW1 AGND AS1346 Mosfet Control Logic Soft Start Oscillator Current Sense FB2 EN2 PVIN VDD SW2 LBO LBI Power-OK Compare Logic PGND |
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