PWM STEP-UP DC/DC CONVERTER WITH VOLTAGE REGULATOR AND DETECTOR
The RS5RM Series are CMOS-based step-up DC/DC converter ICs equipped with a voltage
regulator (VR) and a voltage detector (VD). Each of these step-up DC/DC converter ICs consists of a PWM DC/DC
converter, a linear
regulator and a voltage detector. These ICs are output-voltage-fixed type regulators which function as a linear
regulator when input voltage is high, and as step-up DC/DC converter+linear regulator when input voltage is low,
by using an inductor, a diode and a capacitor as external parts for the ICs.
Since a voltage detector is built in these ICs, the potentials such as the output voltage of DC/DC converters
can be monitored.
In addition, these step-up DC/DC converter ICs are suitable for battery-powered and hand-held instruments because
internal circuits can be turned off by the chip enable function so that the standby current can be minimized. |
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 Low
Supply Current |
TYP. 55µA (RS5RM3624A : VIN=3.0V,at no load) |
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Standby
Mode
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Istandby=MAX. 1.0µA (RS5RMxxxxA)
Istandby=MAX. 10.0µA (RS5RMxxxxB) |
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| Low
Voltage Operation Possible |
Operating Voltage VIN=1.2V to 10V |
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| High
Output Voltage Accuracy |
Fixed Output Voltage Accuracy±2.5% |
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| High
Voltage Detection Accuracy |
Accuracy±2.5% |
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| Output
Voltage can be set at User's request(refer to Selection Guide). |
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| Voltage
close to battery's voltage can be output because these ICs are of a step-up / step-down type (Ex. a fixed voltage
of 3V can be output by a 3V battery). |
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| Soft
Start Function, built-in Protection Circuits for Lx Driver |
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| Phase
Compensation Circuits built in |
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| Pin
for External Driver is equipped, and a large current output can be obtained. |
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| Small
Package |
8pin SOP |
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Power source for cameras, camcorders,
and hand-held audio equipment.
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Power source for small OA apparatus such as note book personal computers, and
word processors.
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Power source for hand-held communication appliances such as pagers, cordless
telephones, and cellular phones.
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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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RS5RM Series
