MAX863EEE+

The MAX863EEE+ is a dual, high efficiency, PFM, step-up DC-DC controller in 16 pin QSOP package. The dual output DC-DC converter contains two independent step-up controllers in a single compact package. This monolithic Bi-CMOS design draws only 85µA when both controllers are on. The input range extends down to 1.5V, permitting use in organizers, translators and other low-power hand-held products. It provides 90% efficiency at output loads from 20mA to over 1A. Device uses a current-limited, pulse frequency modulated (PFM) control architecture that reduces start-up surge currents and maintains low quiescent currents for excellent low-current efficiency. Each controller drives a low cost, external, N-channel MOSFET switch, whose size can be optimized for any output current or voltage. It is used in 2-cell and 3-cell portable equipment, organizers, translators, palmtop computers, personal digital assistants (PDAs) and dual supply (logic and LCD).

• Supply voltage range is 1.5V to 11V
• Operating temperature range from -40°C to 85°C
• 85µA max total quiescent supply current
• Current of 1µA in shutdown mode
• Independent shutdown inputs
• Drives surface mount, dual N-channel MOSFETs
• Low-battery input/output comparator
• Step-up/down configurable

Aplicações

Power Management, Portable Devices

Notas

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party