MAX1724EZK33+T

MAX1724 compact, high-efficiency, step-up DC-DC converter. It is optimized for operation from one to two alkaline or nickel-metal-hydride (NiMH) cells, or a single Li+ cell, these devices are ideal for applications where extremely low quiescent current and ultra-small size is critical. Built-in synchronous rectification significantly improves efficiency and reduces size and cost by eliminating the need for an external Schottky diode. The MAX1724 also features proprietary noise-reduction circuitry which suppresses electromagnetic interference (EMI) caused by the inductor in many step-up applications. Typical applications include pagers, remote controls, remote wireless transmitters, personal medical devices, digital still cameras, single-cell battery powered devices, low-power hand-held instruments, MP3 players and personal digital assistants (PDA).

• Input voltage range from 0.8V to 5.5V
• Up to 90% efficiency
• No external diode or FETs needed
• 1.5μA quiescent supply current and up to 150mA output current
• 0.1μA logic-controlled shutdown
• ±1% output voltage accuracy
• Fixed output voltage
• 0.91V guaranteed start-up and internal EMI suppression
• 5 lead TSOT package
• Operating ambient temperature range -40°C to +85°C

Notes

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