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ADP1621 датащи(PDF) 19 Page - Analog Devices

номер детали ADP1621
подробное описание детали  Constant-Frequency, Current-Mode Step-Up DC/DC Controller
PDF  32 Pages
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
Logo AD - Analog Devices

ADP1621 датащи(HTML) 19 Page - Analog Devices

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ADP1621
Rev. A | Page 19 of 32
Given the minimum on time of the ADP1621, pulse-skipping
modulation is also a requirement to maintain output voltage
regulation with light loads. During the short switching periods
of pulse-skipping modulation, the MOSFET is turned on for the
minimum on time each cycle, storing just enough energy in the
inductor to charge the output capacitor. During the long period
when the MOSFET is off, no current flows through the inductor,
and the light load current is supplied by the output capacitor.
RECOMMENDED COMPONENT MANUFACTURERS
Table 5.
Vendor
Components
AVX Corporation
Capacitors
Central Semiconductor Corp.
Diodes
Coilcraft, Inc.
Inductors
Diodes, Inc.
Diodes
International Rectifier
Diodes, MOSFETs
Murata Manufacturing Co., Ltd.
Capacitors, inductors
ON Semiconductor
Diodes, MOSFETs
Rubycon Corporation
Capacitors
Sanyo
Capacitors
Sumida
Inductors
Taiyo Yuden, Inc.
Capacitors, inductors
Toko America, Inc.
Inductors
United Chemi-Con, Inc.
Capacitors
Vishay Siliconix
Diodes, MOSFETs, resistors, capacitors



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