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Description

FULL DATA SHEET (PDF, 128kB) Download   E-Mail The MAX1927/MAX1928 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board demonstrating the MAX1927/MAX1928 pulse-width modulated (PWM) step-down converters. The EV kit comes assembled with a MAX1928EUB18, which steps down a 2.6V to 5.5V input to a 1.8V output capable of sourcing 800mA. This EV kit can also be used to evaluate the MAX1927 with minor PC board modifications. The MAX1927/MAX1928 optimize efficiency and battery life by skipping pulses at low loads. They feature a forced-PWM mode for low output noise and contain internal MOSFETs for minimum cost and size. A 1MHz switching frequency allows the use of small external components.

Key Features		Applications/Uses
2.6V to 5.5V Input Voltage Range 1.8V Output Voltage (MAX1928EUB18) Up to 800mA Output Current 1MHz PWM Operation 100% Duty-Cycle Operation for Low Dropout No Current-Sense Resistor Needed Power-OK Output 93% Efficiency Internal MOSFET Switch and Synchronous Rectifier Soft-Start Surface-Mount Components Fully Assembled and Tested		Battery-Powered Equipment DSP Core Power PDAs and Palmtops WCDMA Handsets

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