ML4874ES, ML4875, ML4875-3 Selling Leads, Datasheet
MFG:MICROLINEAR Package Cooled:SOP D/C:MICROLIN
ML4874ES, ML4875, ML4875-3 Datasheet download
Part Number: ML4874ES
MFG: MICROLINEAR
Package Cooled: SOP
D/C: MICROLIN
ML4874ES, ML4875, ML4875-3
- Table of contents:
Info of ML4874ES
Info of ML4875
Info of ML4875-3
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About ML40123N
PDF/DataSheet Download
Datasheet: ML40123N
File Size: 108913 KB
Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]
Download : Click here to Download
About ML4875
PDF/DataSheet Download
Datasheet: ML4875
File Size: 200957 KB
Manufacturer: MICRO-LINEAR [Micro Linear Corporation]
Download : Click here to Download
About ML40123N
PDF/DataSheet Download
Datasheet: ML40123N
File Size: 108913 KB
Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]
Download : Click here to Download
ML4875 General Description
The ML4875 is a boost regulator designed for DC to DC conversion in 1 to 3 cell battery powered systems. The combination of BiCMOS process technology, internal synchronous rectification, variable frequency operation, and low supply current make the ML4875 ideal for 1 cell applications. The ML4875 is capable of start-up with input voltages as low as 1V and is available in 5V, 3.3V, and 3V output versions with an output voltage accuracy of ±3%.
Unlike regulators using external Schottky diodes, the ML4875 isolates the load from the battery when the SHDN pin is high. This is accomplished by an integrated synchronous rectifier which eliminates the need for an external Schottky diode and provides a lower forward voltage drop, resulting in higher conversion efficiency. In addition, low quiescent battery current and variable frequency operation result in high efficiency even at light loads. The ML4875 requires only one inductor and two capacitors to build a very small regulator circuit capable of achieving conversion efficiencies in excess of 90%.
The circuit contains a RESET output which goes low when the DETECT input drops below 200mV.
ML4875 Maximum Ratings
Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional 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 (JA) Plastic SOIC ........................... 160°C/W
ML4875 Features
·Guaranteed start-up and operation at 1V input
·Pulse Frequency Modulation and Internal Synchronous Rectification for high efficiency
·Isolates the load from the input during shutdown
·Minimum external components
·Low ON resistance internal switching FETs
·Micropower operation
·5V, 3.3V, and 3V output versions
·Pulse Frequency Modulation and Internal Synchronous Rectification for high efficiency
·Isolates the load from the input during shutdown
·Minimum external components
·Low ON resistance internal switching FETs
·Micropower operation
·5V, 3.3V, and 3V output versions
ML4875 Connection Diagram
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