AP2004 5V1ADCDC升压.pdf

AP2004 1MHz, 3A Step Up Regulator General Description Features AP2004 is an asynchronous PWM boost converter High Efficiency: Up to 92% using a constant frequency peak current mode. An 1.0MHz Constant Switching Frequency external Schottky diode is needed. At light load, Switch current up to 3A AP2004 works in the light load mode. The supply Low Rdson: 0.13Ω current during the light mode is 100uA and less than Accurate Reference:0.6V 1uA in shutdown mode, together with the 130mΩ Tiny External Components internal NMOS power transistor guarantees high 1µA Shutdown Current efficiency in the whole output load current range. Up to Space Saving 6-Pin SOT23 Package 3A peak current, Let AP2004 can provide 1A output load current, which is suitable to use as MID and mobile power supply. The input voltage 2.5~5.5V.The Package operating frequency is internally set at 1MHz. The device is available in the small profile SOT23-6L SOT23-6L package. Applications WLED Drivers Networking cards powered from PCI or PCI- express slots MID and Mobile Power Typical Application Circuit η VS IO(VO=5V) 100 95