AP2004TCER-ADJ

AP2004 Chipown General Description AP2004 is an asynchronous PWM boost converter using a constant frequency peak current mode. An external Schottky diode is needed. At light load, AP2004 works in the light load mode. The supply current during the light mode is 100uA and less than 1uA in shutdown mode, together with the 130mΩ internal NMOS power transistor guarantees high efficiency in the whole output load current range. Up to 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 operating frequency is internally set at 1MHz. The device is available in the small profile SOT23-6L package. Applications z WLED Drivers z Networking cards powered from PCI or PCI- express slots z MID and Mobile Power 1MHz, 3A Step Up Regulator Features z High Efficiency: Up to 92% z 1.0MHz Constant Switching Frequency z Switch current up to 3A z Low Rdson: 0.13Ω z Accurate Reference:0.6V z Tiny External Components z <1µA Shutdown Current z Space Saving 6-Pin SOT23 Package Package SOT23-6L Typical Application Circuit Figure 1. Basic Application Circuit with AP2004 Adjustable Version η(%) η VS IO(VO=5V) 100 95 90 85 80 75 70 65 60 0 VIN=2.5V VIN=3.0V VIN=3.3V VIN=3.6V Vin=4.0V Vin=4.2V 100 200 300 400 500 600 700 800 900 1000 IO(mA) Figure 2. Typical Efficiency Curve 8/F, ChuangYuan Building No.21-1 Changjiang Road, Wuxi New Destrict Tel: +86(510)8521-7718 http://www.chipown.com.cn V0.0 ...