ADP1621-EVAL(RevB) 查看數據表（PDF） - Analog Devices

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ADP1621-EVAL
(Rev.:RevB)

Constant-Frequency, Current-Mode Step-Up DC/DC Controller

Analog Devices 

Data Sheet

ADP1621

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

AVX Corporation

Central Semiconductor Corp.

Coilcraft, Inc.

Diodes, Inc.

International Rectifier

Murata Manufacturing Co., Ltd.

ON Semiconductor

Rubycon Corporation

Sanyo

Sumida

Taiyo Yuden, Inc.

Toko America, Inc.

United Chemi-Con, Inc.

Vishay Siliconix

Components

Capacitors

Diodes

Inductors

Diodes

Diodes, MOSFETs

Capacitors, inductors

Diodes, MOSFETs

Capacitors

Capacitors

Inductors

Capacitors, inductors

Inductors

Capacitors

Diodes, MOSFETs, resistors, capacitors

Rev. B | Page 19 of 32

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