器件名称: ST1638-XXS23
功能描述: Step-Up DC/DC Converter High Efficiency PFM
文件大小: 98.77KB 共7页
简 介:Step-Up DC/DC Converter High Efficiency PFM
ST1638
DESCRIPTION The ST1638 is a high efficiency PFM step-up DC/DC converter for application using battery powered devices. Only three external components are required to construct a low ripple, high efficiency converter. ST1638 can start up from 0.9V input voltage with 1mA load. The space saving SOT-89 and SOT-23 packages make ST1638 an ideal choice for spce conscious applications.
PIN CONFIGURATION SOT-23-3L SOT-89
VOUT
GND
SW
APPLICATIONS Battery Powered Devices Camera PDA Hand Held Communication Equipment Camcoder Power Source for Applications which Require Higher Voltage than Batteries can Provide
SW
GND
VOUT
FEATURES PART MARKING SOT-23-3L SOP-89 Larger than 85% Efficiency Low Startup Voltage, 0.9V at 1mA Low Ripple and Low Noise Low Quiescent Current Minimum Number of External Components SOT-89 and SOT-23 Small Package
638YA
YG Year
AG Day Code
S1638
YW
YG Year
AG Day Code
STANSON TECHNOLOGY
120 Bentley Square, Mountain View, Ca 94040 USA TEL: (650) 9389294 FAX: (650) 9389295
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Step-Up DC/DC Converter High Efficiency PFM TYPICAL APPLCTUON CIRCUIT
ST1638
TEST CIRCUITS
PIN DESCRIPTION
Pin 1 2 3 Symbol GND VOUT SW Descripton Ground Output Voltage Switch Voltage
STANSON TECHNOLOGY
120 Bentley Square, Mountain View, Ca 94040 USA TEL: (650) 9389294 FAX: (650) 9389295
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Step-Up DC/DC Converter High Efficiency PFM BLOCK DIAGRAM
ST1638
ORDERING INFORMATION
Part Number ST1638-XXS89 ST1638-XXS23 XX: Outp……