ML4769E, ML4769ES, ML4770 Selling Leads, Datasheet
MFG:MICROLINEAR Package Cooled:SOIC8 D/C:99+
ML4769E, ML4769ES, ML4770 Datasheet download
Part Number: ML4769E
MFG: MICROLINEAR
Package Cooled: SOIC8
D/C: 99+
ML4769E, ML4769ES, ML4770
- Table of contents:
Info of ML4769E
Info of ML4769ES
Info of ML4770
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About ML4769ES
PDF/DataSheet Download
Datasheet: ML4769ES
File Size: 246739 KB
Manufacturer: MICRO-LINEAR [Micro Linear Corporation]
Download : Click here to Download
About ML4769ES
PDF/DataSheet Download
Datasheet: ML4769ES
File Size: 246739 KB
Manufacturer: MICRO-LINEAR [Micro Linear Corporation]
Download : Click here to Download
About ML4770
PDF/DataSheet Download
Datasheet: ML4770
File Size: 245339 KB
Manufacturer: MICRO-LINEAR [Micro Linear Corporation]
Download : Click here to Download
ML4770 General Description
The ML4770 is a continuous conduction mode boost regulator designed for DC to DC conversion in multiple cell battery power systems. Continuous conduction allows the regulator to maximize output current for a given inductor. The maximum switching frequency can exceed 200kHz, allowing the use of small, low cost inductors. The ML4770 is capable of start-up with input voltages as low as 1.8V. The output voltage can be set anywhere between 3.0V and 5.5V by an external resistor divider connected to the SENSE pin.
An integrated synchronous rectifier eliminates the need for an external Schottky diode and provides a lower forward voltage drop, resulting in higher conversion efficiency. In addition, low quiescent current and variable frequency operation result in high efficiency even at light loads. The ML4770 requires only a few external components to build a very small regulator capable of achieving conversion efficiencies approaching 85%.
The SHDN input allows the user to stop the regulator fromswitching, and provides complete isolation of the load from the battery.
ML4770 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 (IPEAK) ......................................... 2A
Average Switch Current (IAVG) ..................................... 1A
Junction Temperature ............................................. 150ºC
Storage Temperature Range .................... 65ºC to 150ºC
Lead Temperature (Soldering, 10 sec) ................... 260ºC
Thermal Resistance (qJA) .................................. 160ºC/W
VOUT ............................................................................................... 7V
Voltage on any other pin ..... GND - 0.3V to VOUT + 0.3V
Peak Switch Current (IPEAK) ......................................... 2A
Average Switch Current (IAVG) ..................................... 1A
Junction Temperature ............................................. 150ºC
Storage Temperature Range .................... 65ºC to 150ºC
Lead Temperature (Soldering, 10 sec) ................... 260ºC
Thermal Resistance (qJA) .................................. 160ºC/W
ML4770 Features
·Guaranteed full load start-up and operation at 1.8V input
·Continuous conduction mode for high output current
·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
·Low supply current
·Adjustable output voltage (3V to 5.5V)
·Continuous conduction mode for high output current
·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
·Low supply current
·Adjustable output voltage (3V to 5.5V)
ML4770 Connection Diagram
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