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Description

FULL DATA SHEET (PDF, 168kB) Download   E-Mail The MAX1820 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that contains two separate buck switching-regulator circuits. The top circuit utilizes a MAX1820 and is configured for a +0.4V to +3.4V dynamically variable output voltage and provides up to 600mA of guaranteed current. The bottom circuit uses a MAX1821 and is configured for a +1.5V output that provides up to 600mA of guaranteed current. A +2.7VDC to +5.5VDC source could be utilized to power either circuit's input. The MAX1820/MAX1821 feature an internal MOSFET switch and synchronous rectifier. The MAX1820 EV kit demonstrates low quiescent current and high efficiency up to 97% for maximum battery life. PWM operation at 1MHz allows the use of tiny surface-mount components.

Key Features		Applications/Uses
+2.7V to +5.5V Input Range Output Voltages +0.4V to +3.4V Output at 600mA (Top Circuit) +1.5V Output at 600mA (Bottom Circuit) Dynamically Variable Output Voltage (Top Circuit) Adjustable Output Voltage Through Resistive Voltage-Divider (Bottom Circuit) Internal Switch and Synchronous Rectifier 0.1µA (typ) IC Shutdown Current 1MHz PWM Switching Frequency Syncable to 13MHz Oscillator Normal and Forced PWM Mode All Surface-Mount Components Fully Assembled and Tested		Digital Still Cameras Handheld Instruments (PDAs, Palmtops) Microprocessor Core Supplies PCMCIA and Network Cards PDA, Palmtop, and Notebook Computers WCDMA Cell Phone Power Amplifiers

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