ADP3000 Datasheet | Analog Devices

Micropower Step-Up/Step-Down Fixed 3.3 V, 5 V, 12 V, Adjustable High Frequency Switching Regulator 00122-001 OBSOLETE Features Operates at supply voltages from 2 V to 30 V Works in step-up or step-down mode Very few external ponents required High frequency operation up to 400 k Hz Low battery detector on-chip User-adjustable current limit Fixed and adjustable output voltage 8-lead PDIP, 8-lead SOIC, and 14-lead TSSOP packages Small inductors and capacitors APPLICATIONS Notebook, palmtop puters Cellular telephones Hard disk drives Portable instruments Pagers GENERAL DESCRIPTION The ADP3000 is a versatile step-up/step-down switching regulator. It operates from an input supply voltage of 2 V to 12 V 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 µA, making it ideal for applications requiring low quiescent current. It delivers an output current of 180 m A at 3.3 V from a 2 V input in step-up...