EC9206

PFM Step-up DC-DC Converter EC9206 Features General Description z 1.0V Low Start-up Input Voltage at 1mA Load z Deliver 180mA at 3.3V Output with 1.5V Input z 87% High Efficiency (VIN=2.0V, VOUT=3.3V, ILOAD=60mA) z ± 2.5% Output Voltage Accuracy z 8μA Low Switch-Off Supply Current z 0.5μA Low Shutdown Supply Current z SOT-23-5 or SOT-89 Package z RoHS Compliant and 100% Lead (Pb)-Free and Green (Halogen Free with Commercial Standard) Applications The EC9206 is a compact PFM step-up DC/DC converter that operates from an input voltage as low as 1.0 Volt. The low start-up input voltage makes EC9206 specially designed for portable devices from one or two cell battery, delivering up to 180mA load current at VIN=1.5V VOUT=3.3V. Typical efficiency for EC9206 is 85% when VIN>=2.0V VOUT=3.3V ILOAD=1~60mA. Potential applications include low powered consumer products and battery powered portable products. The EC9206 features a minimum off-time, current -limited, PFM control scheme which combines the advantages of PWM (higher output power and efficiency) and those of traditional PFM (ultra-low quiescent current). The internal 0.6 ohm low turn-on resistance NMOS power switch provides stable and high-efficiency operation over a board load current range. Chip enable feature is provided for SOT-23-5 package to power down the device. The EC9206 devices are available in both SOT-89 and SOT-23-5 packages with 6 standard regulated output voltages. z PDA z DSC z MP3 Player z Electronic Game...