The MAX1722EZK+T is a 1.5μA IQ, step-up DC-DC converter in 5 pin TSOT package. This compact, high efficiency, step-up DC-DC converter features an extremely low 1.5μA quiescent supply current to ensure highest possible light load efficiency. Device is optimized for operation from one to two alkaline or nickel-metal-hydride (NiMH) cells or a single Li+ cell. It is 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 need for an external schottky diode. It features 0.5ohm N-channel power switch and proprietary noise-reduction circuitry which suppresses electromagnetic interference (EMI) caused by inductor in many step-up applications. It is used in pagers, remote controls, remote wireless transmitters, digital still cameras, single-cell battery powered devices, MP3 players and personal digital assistants.
- Supply voltage range is 0.8V to 5.5V
- Operating temperature range from -40°C to 85°C
- Up to 90% efficiency
- Logic controlled shutdown is 0.1μA
- Output voltage accuracy is ±1%
- Adjustable output voltage
- Up to 150mA output current
- Startup voltage of 0.91V
- Internal EMI suppression
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