RICOH RP202x Series Data Sheet (1) User Guide
Summary
The RP202x series are high-performance CMOS Voltage Regulator ICs designed for power management in portable and battery-powered electronic equipment, such as cameras and communication gear. These versatile regulators offer ultra-low standby current and automatic switching between fast and low power modes while maintaining voltage stability. This manual provides comprehensive technical details, including operational features (e.g., built-in foldback protection), selection guides for various output voltages (0.8V to 4.0V), pin configurations, and detailed applications to help engineers design reliable power solutions for demanding circuits.
Page 1 Text Content
RP202x SERIES
Low Power/Fast MODE alternative 200m A LDO REGULATOR
NO.EA-279-120410
OUTLINE The RP202x Series consist of CMOS-based voltage regulator ICs with high output voltage accuracy, low dropout voltage and low supply current. These ICs perform with the chip enable function and realize a standby mode with ultra low supply current. To prevent the destruction by over current, the current limit circuit is included. The RP202 Series have 3-mode. One is standby mode with CE pin. The other two are the fast response mode (Fast Mode) and the low power mode, and switch over automatically according to the load current of the LDO. Supply current of IC itself at light load is automatically reduced. The output voltage is maintained between Fast Mode and ECO Mode. The RP202x consists of a voltage reference unit, an error amplifier, a resister net for voltage setting, and a current limit circuit. Since the packages for these ICs are SOT-23-5, SC-88A, and DFN(PLP)1010-4, high density mounting of the ICs on boards is possible.
FEATURES ●Input Voltage Range .............................................1.4V to 5.25V ●Output Voltage Range ..........................................0.8V to 4.0V (0.1V steps) (For other voltages, please refer to MARK INFORMATIONS.) ●Supply Current (IOUT=0m A) ...................................Typ. 2.5μA ●Supply Current (IOUT=10m A) .................................Typ. 50μA ●Supply Current (Standby Mode) ...........................Typ. 0.1μA ●Dropout Voltage ....................................................Typ. 0.20V (IOUT=200m A, VOUT=2.8V) ●Ripple Rejection....................................................Typ. 70d B (f=1k Hz, VOUT=2.8V, IOUT=30m A) ●Line Regulation.....................................................Typ. 0.02%/V (IOUT=10m A) ●Packages ..............................................................DFN(PLP)1010-4, SC-88A, SOT-23-5 ●Built-in Foldback Protection Circuit.......................Typ. 60m A (Current at short mode) ●Ceramic capacitors are recommended to be used with this IC .....0.47μF 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.
Page Summary Contents For RICOH RP202x Series Data Sheet (1) User Guide
Manual Details
| Brand | Ricoh |
|---|---|
| Pages | 25 |
| File Size | 845.05 KB |
| Published | May 29, 2026 |
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Frequently Asked Questions
What is the primary function of this IC?
It functions as a CMOS-based voltage regulator with high output voltage accuracy, low dropout voltage, and low supply current.
Does the device have built-in protections?
Yes, it includes a current limit circuit and built-in foldback protection (Typ. 60mA) to prevent destruction by overcurrent.
What is the recommended external component for optimal performance?
Ceramic capacitors with a value of 0.47μF or more are recommended when using this IC.
How does the power mode switch between operational states?
The RP202x automatically switches between Fast Mode and ECO Mode, and its supply current is automatically reduced at light loads.