ML4775, ML4775E, ML4775ES Selling Leads, Datasheet
MFG:ML Package Cooled:SOP-8 D/C:20058
ML4775, ML4775E, ML4775ES Datasheet download
Part Number: ML4775
MFG: ML
Package Cooled: SOP-8
D/C: 20058
ML4775, ML4775E, ML4775ES
- Table of contents:
Info of ML4775
Info of ML4775E
Info of ML4775ES
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About ML4775
PDF/DataSheet Download
Datasheet: ML4775
File Size: 181992 KB
Manufacturer: MICRO-LINEAR [Micro Linear Corporation]
Download : Click here to Download
About ML4775ES
PDF/DataSheet Download
Datasheet: ML4775ES
File Size: 181992 KB
Manufacturer: MICRO-LINEAR [Micro Linear Corporation]
Download : Click here to Download
About ML4775ES
PDF/DataSheet Download
Datasheet: ML4775ES
File Size: 181992 KB
Manufacturer: MICRO-LINEAR [Micro Linear Corporation]
Download : Click here to Download
ML4775 General Description
The ML4775 is a boost regulator designed for DC to DCconversion in 1 to 3 cell battery powered systems. Thecombination of BiCMOS process technology, internalsynchronous rectification, variable frequency operation,and low supply current make the ML4775 ideal for 1 cellapplications. The ML4775 is capable of start-up with inputvoltages as low as 1V, and the output voltage can be setanywhere between 2.5V and 5.5V by an external resistordivider connected to the SENSE pin.
Unlike regulators using external Schottky diodes, theML4775 isolates the load from the battery when theSHDN pin is high. This is accomplished by an integratedsynchronous rectifier which eliminates the need for anexternal Schottky diode and provides a lower forwardvoltage drop, resulting in higher conversion efficiency.In addition, low quiescent battery current and variablefrequency operation result in high efficiency even at light oads. The ML4775 requires a minimum number ofexternal components to build a very small regulator circuitcapable of achieving conversion efficiencies in excess of90%.
ML4775 Maximum Ratings
Absolute maximum ratings are those values beyondwhich the device could be permanently damaged.Absolute maximum ratings are stress ratings only and unctional device operation is not implied.
VOUT .......................................................................... 7V
Voltage on any other pin ..... GND 0.3V to VOUT +0.3V
Peak Switch Current, I(PEAK) .................................... 1.5A
Average Switch Current, I(AVG) ............................300mA
Junction Temperature ............................................. 150°C
Storage Temperature Range .................... 65°C to 150°C
Lead Temperature (Soldering 10 sec.) .................... 260°C
Thermal Resistance (qJA) ...................................160°C/W
ML4775 Features
·Guaranteed start-up and operation at 1V input
·Pulse Frequency Modulation and Internal Synchronous ectification for high efficiency
·Isolates the load from the input during shutdown
·Minimum external components
·Low ON resistance internal switching FETs
·Micropower operation
·Adjustable output voltage (2.5V to 5.5V)
·Pulse Frequency Modulation and Internal Synchronous ectification for high efficiency
·Isolates the load from the input during shutdown
·Minimum external components
·Low ON resistance internal switching FETs
·Micropower operation
·Adjustable output voltage (2.5V to 5.5V)
ML4775 Connection Diagram
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