ML486CR, ML4870, ML4870-5 Selling Leads, Datasheet
MFG:MICROLINEAR Package Cooled:SSOP20M D/C:09+
ML486CR, ML4870, ML4870-5 Datasheet download
Part Number: ML486CR
MFG: MICROLINEAR
Package Cooled: SSOP20M
D/C: 09+
ML486CR, ML4870, ML4870-5
- Table of contents:
Info of ML486CR
Info of ML4870
Info of ML4870-5
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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 ML4870
PDF/DataSheet Download
Datasheet: ML4870
File Size: 216437 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
ML4870 General Description
The ML4870 is a continuous conduction 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 ML4870 is capable of start-up with inpuvoltages as low as 1.8V, and is available in 5V and 3.3V output versions with an output voltage accuracy of ±3%.
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 addtion, low quiescent current and variable frequency operation result in high efficiency even at light loads. The ML4870 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 from witching, and provides complete isolation of the load rom the battey.
ML4870 Maximum Ratings
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...............................................................150°C
Storage Temperature Range.....................................65°C to 150°C
Lead Temperature (Soldering, 10 sec)......................................260°C
Thermal Resistance (qJA)......................................................160°C/W
Temperature RangeML4870CS-X.....................................0°C to 70°C
ML4870ES-X.................................................................-20°C to 70°C
VINOperating Range..............................................1.8V to VOUT- 0.2V
ML4870 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
5V and 3.3V output versions
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
5V and 3.3V output versions
ML4870 Connection Diagram
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