ADP3000中文资料可调高频开关稳压器数据手册ADI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.

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.

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.

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

应用 Application

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