RICOH RP110x SERIES Owner's Manual User Guide
Summary
The RP110x Series is an ultra-low supply current LDO voltage regulator IC designed for energy efficiency in critical applications. Featuring minimal standby draw and a soft-start circuit to prevent inrush current, this regulator prolongs battery life. This manual provides comprehensive technical details, including application guidelines, precise electrical specifications (dropout voltage, line regulation), multiple surface-mount packages (DFN/SOT-23-5), and robust integration instructions for designers of portable communication equipment, battery-powered appliances, and similar electronics.
Page 1 Text Content
RP110x SERIES
150m A Low Supply Current LDO REGULATOR
NO.EA-239-111020
OUTLINE The RP110x Series is a voltage regulator (LDO) IC, which has been developed using the CMOS process technology, with high output voltage accuracy, ultra-low supply current, and low ON-resistance transistor. The IC contains the following components: a voltage reference unit, an error amplifier, a resistor-net for output voltage setting, a current limit circuit for preventing short-circuit, a soft-start circuit, and a chip enable circuit. By minimizing the supply current to 1µA, the IC is able to prolong the battery life of each system. The external capacitor is 0.1µF with phase compensation. The IC also has a constant slope circuit as a soft-start circuit, which does not require any external capacitor. It minimizes the inrush current and prevents the output voltage overshoot at the start-up. In addition to the small packaged SOT-23-5 and SC-88A, the RP110x Series offers the ultra-small DFN(PLP)0808-4 package and DFN1010-4, which enables the high density mounting of LDO regulator.
FEATURES • Supply Current ......................................................Typ. 1.0μA
(Except the current through CE pull down circuit)
• Standby Current ....................................................Typ. 0.1μA • Dropout Voltage ....................................................Typ. 0.28V (IOUT=150m A, VOUT=2.8V) • Output Voltage Accuracy.......................................±1.0% • Temperature-Drift Coefficient of Output Voltage ...Typ. ±100ppm/°C • Line Regulation .....................................................Typ. 0.02%/V • Packages ..............................................................DFN(PLP)0808-4, DFN1010-4, SC-88A, SOT-23-5 • Input Voltage Range .............................................1.4V to 5.25V • Output Voltage Range...........................................0.8V to 3.6V (0.1V steps) (For other voltages, please refer to MARK INFORMATIONS.) • Built-in Fold Back Protection Circuit .....................Typ. 50m A (Current at short mode) • Ceramic capacitors are recommended to be used with this IC .....0.1μF or more • Built-in Constant Slope Circuit
APPLICATIONS • Power source for portable communication equipment. • Power source for electrical appliances such as cameras, VCRs and camcorders. • Power source for battery-powered equipment.
Page Summary Contents For RICOH RP110x SERIES Owner's Manual User Guide
Manual Details
| Brand | Ricoh |
|---|---|
| Pages | 25 |
| File Size | 2.40 MB |
| Published | May 31, 2026 |
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Frequently Asked Questions
What is the recommended external capacitor for this LDO regulator?
It is recommended to use a ceramic capacitor of 0.1µF or more.
What are the possible output voltage ranges?
The output voltage can be set in the range from 0.8V to 3.6V (in 0.1V steps).
How does this regulator conserve power for battery-operated devices?
It minimizes supply current down to a typical of 0.1µA in standby mode.
Are there multiple package options available for high-density mounting?
Yes, packages include DFN(PLP)0808-4 and DFN1010-4 for high density mounting.