OPERATION OF DC-DC CHARGE PUMP CONVERTER MCP1253 IN BUCK MODE
https://doi.org/10.32362/2500-316X-2017-5-4-13-21
Abstract
The algorithm of operation of MCP1253 charge pump converter in buck mode is studied for the first time by detailed measurements of ripples of output voltage and flying capacitor voltage. Some experimental results for MCP1253 operation in regulation buck mode at combinations of input voltage 5.1 V and output voltage 3.5 V, input voltage 5.1 V and output voltage 4.8 V and input voltage 2.2 V and output voltage 1.7 V for the range of load current from 2 to 100 mA are presented as examples. Realized investigations revealed that algorithm of MCP1253 operation in buck mode, described by its manufacturer, is not defined the all different cases of its use. The algorithm depends on the ratio between input and output voltages, their values and load currents.
About the Authors
V. K. Bityukov
Moscow Technological University (MIREA)
Russian Federation
Russian Federation
V. A. Petrov
Moscow Technological University (MIREA)
Russian Federation
Russian Federation
A. A. Sotnikova
Moscow Technological University (MIREA)
Russian Federation
Russian Federation
References
1. Buck/Boost Regulating Charge Pump in μMAX, MAX1759, Data Sheet 19-1600. Maxim Integrated Products, 2000,10 pp.
2. Low Noise, Positive-Regulated Charge Pump MCP1252/3, Data Sheet DS2175A, Microchip Technology, 2002, 18 pp.
3. Converting a 5.0 V Supply Rail to a Regulated 3.0 V. Microchip Technology Application Note AN1025 (DS01025A), 2006, 8 pp.
4. Битюков В.К., Иванов А.А., Миронов А.В., Михневич Н.Г., Перфильев В.С., Петров В.А. Стенд для исследования характеристик микросхем источников вторичного электропитания с накачкой заряда // Российский технологический журнал. 2016. Т. 4. № 3. С. 37-52.
5. Битюков В.К., Иванов А.А., Миронов А.В., Михневич Н.Г., Перфильев В.С., Петров В.А. Исследование характеристик микросхем источников вторичного электропитания с накачкой заряда // Радиотехника. 2017. № 2. С. 126-134.
Review
For citations:
Bityukov V.K., Petrov V.A., Sotnikova A.A. OPERATION OF DC-DC CHARGE PUMP CONVERTER MCP1253 IN BUCK MODE. Russian Technological Journal. 2017;5(4):13-21. (In Russ.) https://doi.org/10.32362/2500-316X-2017-5-4-13-21
Views:
445
Email this article 