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MAX1765

Maxim
Part Number MAX1765
Manufacturer Maxim
Description 800mA / Low-Noise / Step-Up DC-DC Converter
Published May 6, 2005
Detailed Description 19-1805; Rev 0; 12/00 800mA, Low-Noise, Step-Up DC-DC Converter with 500mA Linear Regulator MAX1765 General Description...
Datasheet PDF File MAX1765 PDF File

MAX1765
MAX1765

Overview
19-1805; Rev 0; 12/00 800mA, Low-Noise, Step-Up DC-DC Converter with 500mA Linear Regulator MAX1765 General Description The MAX1765 is a high-efficiency, low-noise, step-up DC-DC converter intended for use in battery-powered wireless applications.
This device operates at a high 1MHz fixed frequency while maintaining an exceptionally low quiescent supply current (200µA).
Its small external components and tiny package make this device an excellent choice for small hand-held applications that require the longest possible battery life.
The MAX1765 uses a synchronous-rectified pulsewidth-modulation (PWM) boost topology to generate 2.
5V to 5.
5V outputs from a wide range of input sources, such as one to three alkaline or NiCd/NiMH cells or a single lithium-ion (Li+) cell.
Maxim's proprietary architecture significantly improves efficiency at low load currents while automatically transitioning to fixed-frequency PWM operation at medium to high load currents to maintain excellent full-load effi...


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