MAX1724 Step-Up DC-DC Converter Evaluation Kit

The 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 0.5O N-channel power switch. The 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.

• 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
• Up to 150mA Output Current
• 0.8V to 5.5V Input Voltage Range
• 0.91V Guaranteed Startup
• Internal EMI Suppression
• TSOT Package (0.9mm typ Height)
• µDFN Package (2mm x 2mm x 0.75mm)