VFM STEP-UP DC/DC CONVERTER CONTROLLER
| The RN5RY202 series are VFM (chopper) Control ICs for step-up DC/DC converter with
an external power transistor featuring high output voltage accuracy and low supply current by CMOS process.
The RN5RY202 Series ICs consist of a voltage reference unit, an error amplifier, an oscillator, a VFM control
circuit and feed back resistors. Output voltage is fixed at 2V in the IC. A low ripple, high efficiency step-up
DC/DC converter can be constructed by simply adding an inductor, a diode, a capacitor, and a drive transistor
and feed back resistors. Although the series have no CE pins not like RN5RYxx1A, these may output high voltage
(VOUT=30V) by employing external feed back resistors. |
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 Low
Supply Current |
TYP. 3µA |
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| Low
Temperature-Drift Coefficient of Output Voltage |
TYP. ±50ppm/°C |
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| High
Accuracy Output Voltage |
±2.5% |
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| Low
Oscillation Start-up Voltage (no load) |
MAX. 0.8V |
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output voltage may be set with external resistors |
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| Small
Package SOT-23-5(Mini-Mold) |
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Constant voltage power source for battery-powered instruments.
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Constant power source for cameras, camcorders, pagers, and other hand-held communication
tools. |
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Constant power source for devices that require higher voltages than battery voltages.
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| * All PDF files are less than 1MB unless otherwise stated. |
| * If you don't have Adobe Reader, you can download free. |
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Technical Info.
Technical Information on Ricoh Power Management ICs.
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Product Catalog
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| Selection guide is available for download in PDF format. |
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Non-promotion / Discontinued Products
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RN5RY202 Series
