MAX1722/MAX1723/MAX1724 1.5μA IQ, Step-Up DC-DC Converters in TSOT and μDFN
★General Description
●The MAX1722/MAX1723/MAX1724 compact, high-efficiency, step-up DC-DC converters are available in tiny, 5-pin TSOT packages. They feature an extremely low 1.5μA quiescent supply current to ensure the highest possible light-load efficiency. 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 are critical.
●Built-in synchronous rectification significantly improves efficiency and reduces size and cost by eliminating the need for an external Schottky diode. All three devices feature a 0.5Ω N-channel power switch. The MAX1722/MAX1724 also feature proprietary noise-reduction circuitry, which suppresses electromagnetic interference (EMI) caused by the inductor in many step-up applications. The family offers different combinations of fixed or adjustable outputs, shutdown, and EMI reduction (see Selector Guide).
★Benefits and Features
●Up to 90% Efficiency
●No External Diode or FETs Needed
●1.5μA Quiescent Supply Current
●0.1μA Logic-Controlled Shutdown
●±1% Output Voltage Accuracy
●Fixed Output Voltage (MAX1724) or Adjustable Output Voltage (MAX1722/MAX1723)
●Up to 150mA Output Current
●0.8V to 5.5V Input Voltage Range
●0.91V Guaranteed Startup (MAX1722/MAX1724)
●Internal EMI Suppression (MAX1722/MAX1724)
●TSOT Package (0.9mm typ Height)
●μDFN Package (2mm x 2mm x 0.75mm)
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MAX1722 、 MAX1723 、 MAX1724 、 MAX1724E__27 、 MAX1724E__30 、 MAX1724E__33 、 MAX1724E__50 、 MAX1722EZK 、 MAX1723EZK 、 MAX1724EZK27 、 MAX1724EZK30 、 MAX1724EZK33 、 MAX1724EZK50 、 MAX1722ELT 、 MAX1723ELT 、 MAX1724ELT27 、 MAX1724ELT30 、 MAX1724ELT33 、 MAX1724ELT50 、 MAX1722EZK+T 、 MAX1723EZK+T 、 MAX1724EZK27+T 、 MAX1724EZK30+T 、 MAX1724EZK33+T 、 MAX1724EZK50+T 、 MAX1722ELT+T 、 MAX1723ELT+T 、 MAX1724ELT27+T 、 MAX1724ELT30+T 、 MAX1724ELT33+T 、 MAX1724ELT50+T |
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Step-Up DC-DC Converters 、 high-efficiency, step-up DC-DC converters |
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[ Pagers ][ Remote Controls ][ Remote Wireless Transmitters ][ Personal Medical Devices ][ Digital Still Cameras ][ Single-Cell Battery-Powered Devices ][ Low-Power Hand-Held Instruments ][ MP3 Players ][ Personal Digital Assistants ][ PDA ] |
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Datasheet |
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Please see the document for details |
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TSOT;μDFN;Z5+1;L622+1 |
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English Chinese Chinese and English Japanese |
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8/17 |
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Rev 5 |
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19-1735 |
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2 MB |
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