Part # MAX8654 datasheet

Part Manufacturer: Maxim


Part Description: MAX8654 DS

Part Details:

19-0588; Rev 1; 4/08 EVALUATION KIT AVAILABLE 12V, 8A 1.2MHz Step-Down Regulator MAX8654 General Description Features The MAX8654 high-efficiency switching regulator delivers Internal 26m RDS(ON) MOSFETs up to 8A of load current at output voltages from 0.6V to Guaranteed 8A Output Current 0.85 x VIN. The IC operates from 4.5V to 14V, making it Adjustable Overcurrent Protection ideal for on-board point-of-load and postregulation appli- 1% Output Accuracy Over Temperature cations, with total output error less than ±1% over load,line, and temperature ranges. Operates from 4.5V to 14V Supply Adjustable Output from 0.6V to 0.85 x V The MAX8654 is a fixed-frequency PWM mode regulator IN with a switching frequency range of 250kHz to 1.2MHz Soft-Start Reduces Inrush Supply Current set by an external resistor or SYNC input. High-frequency 250kHz to 1.2MHz Adjustable Switching or SYNC operation allows for an all-ceramic-capacitor solution. A Input SYNCOUT output is provided to synchronize a second Compatible with Ceramic, Polymer, and regulator switching 180 out-of-phase with the first to Electrolytic Output Capacitors reduce the input ripple current and consequently reduce SYNCOUT Synchronizes 2nd Regulator 180° the required input capacitance. The high operating fre- Out-of-Phase quency minimizes the size of external components. 36-Pin, Lead-Free, 6mm x 6mm Thin QFN Package The on-board low RDS(ON) dual-nMOS design keepsthe board cooler at heavy loads while minimizing thecritical inductances, making the layout a much simpler Ordering Information task with respect to the discrete solutions. PIN- The MAX8654 comes with a high-bandwidth (20MHz) PART TEMP RANGE PACKAGE voltage-error amplifier. The voltage-mode control archi-tecture and the op-amp voltage-error amplifier permit a MAX8654ETX+ -40°C to +85°C 36 Thin QFN-EP* type 3 compensation scheme to be utilized to achieve +Denotes a lead-free/RoHS-compliant package. maximum loop bandwidth, up to 20% of the switching *EP = Exposed pad. frequency. High loop bandwidth achieves fast transientresponse resulting in less output capacitance required. The MAX8654 offers programmable soft-start to accom-modate different types of output capacitors and reduce Typical Operating Circuit

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MAX8654.pdf Datasheet