Micro linear ML4872 High Current Boost Regulator with Shutdown

Update: 30 September, 2023

The ML4872 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 ML4872 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 ML4872 requires only one inductor and two capacitors to build a very small regulator circuit capable of achieving conversion efficiencies approaching 90%. The SHDN input allows the user to stop the regulator from switching and powers down the control circuitry.

Brand: Micro

File format: PDF

Size: 200 KB

MD5 Checksum: EE1061CF2BD1771696ADC9542CEF099E

Publication date: 05 June, 2012

Downloads: -

PDF Link: Micro linear ML4872 High Current Boost Regulator with Shutdown PDF

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