ADP3000数据手册ADI中文资料规格书

描述 Description

The ADP3000 is a versatile step-up/step-down switching regulator. It operates from an input supply voltage of 2 V to 12V in step-up mode, and from 2 V to 30 V in step-down mode.\r
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Operating in pulse frequency mode(PFM), the device consumes only 500 uA, making it ideal for applications requiring low quiescent current. It delivers an output current of 180 mA at 3.3 V from a 2 V input in step-up mode, and an output current of 100 mA at 3 V from a 5 Vinput in step-down mode.\r
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The ADP3000 operates at 400 kHz switching frequency. This alows the use of small external components(inductors and capacitors), making it convenient for space-constrained designs.\r
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The auxiliary gain amplifier can be used as a low battery detector, linear regulator, undervoltage lockout, or error amplifier.

特性 Features

• Operates at supply voltages from 2V to 30V \r
• Works in step-up or step-down mode \r
• Very few external components required \r
• High frequency operation up to 400 kHz \r
• Low battery detector on-chip \r
• User-adjustable current limit \r
• Fixed and adjustable output voltage \r
• 8-lead PDIP,8-lead SOlC,and 14-lead TSSOP packages \r
• Small inductors and capacitors

应用 Application

• Notebook, palmtop computers\r
• Cellular telephones\r
• Hard disk drives\r
• Portable instruments\r
• Pagers