RICOH RP109x SERIES User's Manual and Technical Specifications Document (Part 1)
Summary
The RP109x Series is a high-performance CMOS Low Dropout (LDO) voltage regulator designed for sensitive electronic power applications. This unit features exceptionally low supply current, superior transient response, and guaranteed accuracy, optimizing battery life in compact devices. The manual provides comprehensive technical specifications, package options, and application guidelines, making it the ideal choice for powering portable communication equipment, cameras, or other battery-operated appliances requiring reliable, highly efficient regulation.
Page 1 Text Content
RP109x SERIES
LOW NOISE 150m A LDO REGULATOR
NO.EA-204-111020
OUTLINE The RP109x Series are CMOS-based voltage regulator ICs with high output voltage accuracy, extremely low supply current, low ON-resistance, and high ripple rejection. Each of these ICs consists of a voltage reference unit, an error amplifier, a resistor-net for voltage setting, a current limit circuit and a chip enable circuit. These ICs perform with low dropout voltage and a chip enable function which prolong the battery life. The line transient response and load transient response of the RP109x Series are excellent, thus these ICs are very suitable for the power supply for hand-held communication equipment. RP109x Series contributes to the downsizing of the hand-held equipment because it can use the 0.1μF ceramic capacitor. In addition to SOT-23-5, SC-88A and DFN1010-4 packages, a 0.8mm square ultra compact DFN(PLP)0808-4 package is also available.
FEATURES • Supply Current .............................................................Typ. 50μA • Standby Mode ..............................................................Typ. 0.1μA • Dropout Voltage............................................................Typ. 0.25V (IOUT=150m A, VOUT=2.5V) • Ripple Rejection ...........................................................Typ. 75d B (f=1k Hz, VOUT=2.5V) • Temperature-Drift Coefficient of Output Voltage ..........Typ. ±100ppm/°C (VOUT<1.8V) Typ. ±30ppm/°C (VOUT≥1.8V) • Line Regulation ............................................................Typ. 0.02%/V • Output Voltage Accuracy..............................................±1.0% • 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. 40m A (Current at short mode) • Ceramic capacitors are recommended to be used with this IC 0.1μF or more
APPLICATIONS • Power source for portable communication equipment. • Power source for electrical appliances such as cameras, VCRs and camcorders. • Power source for battery-powered equipment. • Power source for home appliances.
Page Summary Contents For RICOH RP109x SERIES User's Manual and Technical Specifications Document (Part 1)
Manual Details
| Brand | Ricoh |
|---|---|
| Pages | 29 |
| File Size | 780.84 KB |
| Published | June 05, 2026 |
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Frequently Asked Questions
What capacitor is recommended when using this IC Regulator?
The manual recommends using a 0.1μF or larger ceramic capacitor with this chip.
What is the typical standby current draw of the RP109x Series?
The typical standby mode current is 0.1μA.
What input voltage range does this regulator support?
It supports an input voltage range from 1.4V to 5.25V.
Is the IC suitable for battery-powered devices?
Yes, it is suitable as a power source for both battery-powered and portable communication equipment.