MAX15040

19-4426; Rev 2; 7/10 KIT ATION EVALU E L B AVAILA www.DataSheet4U.com High-Efficiency, 4A, Step-Down Regulator with Integrated Switches in 2mm x 2mm Package General Description The MAX15040 high-efficiency switching regulator delivers up to 4A load current at output voltages from 0.6V to (0.9 x VIN). The device operates from 2.4V to 3.6V, making it ideal for on-board point-of-load and postregulation applications. Total output-voltage accuracy is within ±1% over load, line, and temperature. The MAX15040 features 1MHz fixed-frequency PWM mode operation. The high operating frequency allows for small-size external components. The low-resistance on-chip nMOS switches ensure high efficiency at heavy loads while minimizing critical parasitic inductances, making the layout a much simpler task with respect to discrete solutions. Following a simple layout and footprint ensures first-pass success in new designs. The MAX15040 incorporates a high-bandwidth (> 15MHz) voltage-error amplifier. The voltage-mode control architecture and the voltage-error amplifier permit a Type III compensation scheme to achieve maximum loop bandwidth, up to 200kHz. High loop bandwidth provides fast transient response, resulting in less required output capacitance and allowing for allceramic capacitor designs. The MAX15040 features an output overload hiccup protection and peak current limit on both high-side (sourcing current) and low-side (sinking and sourcing current) MOSFETs, for ultra-safe operations in...