ML4870CS, ML4870CS3, ML4871 Selling Leads, Datasheet
MFG:IDT Package Cooled:SOP8 D/C:06+
ML4870CS, ML4870CS3, ML4871 Datasheet download
Part Number: ML4870CS
MFG: IDT
Package Cooled: SOP8
D/C: 06+
ML4870CS, ML4870CS3, ML4871
- Table of contents:
Info of ML4870CS
Info of ML4870CS3
Info of ML4871
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About ML4870CS-3
PDF/DataSheet Download
Datasheet: ML4870CS-3
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
About ML4871
PDF/DataSheet Download
Datasheet: ML4871
File Size: 243298 KB
Manufacturer: MICRO-LINEAR [Micro Linear Corporation]
Download : Click here to Download
ML4871 General Description
The ML4871 is a continuous conduction boost regulator designed for DC to DC conversion in multiple cell battery powered 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 ML4871 is capable of start-up with input voltages 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 addition, low quiescent battery current and variable frequency operation result in high efficiency even at light loads. The ML4871 requires only one inductor and two capacitors to build a very small regulator circuit capable of achieving conversion efficiencies approaching 90%.
The circuit also contains a RESET output which goes low when the DETECT input drops below 1.25V.
ML4871 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 ............................................150ºC
Storage Temperature Range..................65ºC to 150ºC
Lead Temperature (Soldering 10 sec) ...................260ºC
Thermal Resistance (JA) ...................................160ºC/W
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 (JA) ...................................160ºC/W
ML4871 Features
Guaranteed full load start-up and operation
at 1.8V Input
Continuous conduction mode for high output current
Very low supply current (20µA output referenced) for
Micropower operation
Pulse Frequency Modulation and Internal Synchronous
Rectification for high efficiency
Maximum switching frequency > 200kHz
Minimum external components
Low ON resistance internal switching FETs
5V and 3.3V output versions
at 1.8V Input
Continuous conduction mode for high output current
Very low supply current (20µA output referenced) for
Micropower operation
Pulse Frequency Modulation and Internal Synchronous
Rectification for high efficiency
Maximum switching frequency > 200kHz
Minimum external components
Low ON resistance internal switching FETs
5V and 3.3V output versions
ML4871 Connection Diagram
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