RICOH Manuals

The R1111N/R1121N Series are CMOS-based LDO regulators featuring 150mA output. They have a high maximum input voltage rating of 8V, making them ideally suitable for use in power source for various equipment, including hand-held communication equipment.

The R1141Q Series is a series of CMOS-based voltage regulator ICs with high output voltage accuracy, low supply current, low ON-resistance, and high ripple rejection. Each IC in the series consists of a voltage reference unit, an error amplifier, resistors for setting the output voltage, a current limit circuit, and a chip enable circuit. The series includes an embedded output current limit circuit to prevent IC breakdown caused by excessive current. The chip enable circuit enables standby mode and reduces consumption current to an extremely low level. These ICs have low dropout voltage and a chip enable function. The R1141Q Series exhibits excellent line transient response and load transient response, making them highly suitable for power supply applications in handheld communication equipment. The output voltage of these ICs is internally fixed with high accuracy. The ICs are packaged in SC-82AB (Super Mini-mold) package, allowing for high-density mounting on boards.

The R1141Q Series is a CMOS-based LDO regulator that features 120mA output. The SC-82AB package is available. Standby mode and auto-discharge function are also available (see Selection Guide). Ceramic capacitors can be used.

The Rx5RZ Series is a CMOS-based LDO regulator with a 100mA output. The input voltage (VIN) can be set up to a maximum of 8V (absolute maximum rating at 9V), and the output voltage (VOUT) can go up to 6V. The SOT-23-5 package allows the user to select the polarity of the CE pin. The SOT-89 package does not include the CE pin.

The R1515x series are CMOS-based positive voltage regulator (VR) ICs featuring 50mA output current. The R1515xxxxB has features of high input voltage and ultra-low supply current. A peak current limit circuit, a short current limit circuit, and a thermal shutdown circuit are built in the R1515x series. The operating temperature is −40°C to 105°C and the maximum input voltage is 36V, the R1515x series are very suitable for power source of car accessories. The regulator output voltage is fixed in the R1515xxxxB and can be selected with a step of 0.1V in the range of 2.0V to 12.0V. Output voltage accuracy is ±2%. The packages for these ICs are the SOT-89-5 for space saving and the HSOP-6J for higher power applications.

The R1515x Series are CMOS-based voltage regulators featuring 50mA output current and 36V input voltage. In addition to a fold-back protection circuit built into conventional regulators, R1515x contains a thermal shutdown circuit. Besides the low supply current by CMOS, the operating temperature is -40°C to 105°C and the maximum input voltage is 36V, the R1515x series are very suitable for power source of car accessories.

The R1100D series is CMOS-based voltage regulator ICs with high accuracy output voltage and ultra-low supply current developed.

The R1100D series are CMOS voltage regulators featuring 35mA to 100mA output current. R1100D is available in the SON1408-3 package, providing a compact design.

The Rx5RW Series are CMOS-based voltage regulator ICs with high accuracy output voltage and ultra-low supply current. Each of these ICs consists of a driver transistor, a voltage reference unit, an error amplifier, resistors for setting output voltage, and a current limit circuit. The output voltage of these ICs is fixed with high accuracy. Even if VOUT is shorted to GND, the included current limit circuit protects the ICs from destruction. Furthermore, Rx5RWxxA/B have a chip enable function, so that the supply current on standby can be minimized. Since the packages for these ICs are SC-82AB and SON1612-6, high-density mounting of the ICs on boards is possible.

The Rx5RW Series is a CMOS-based voltage regulator with chip enable pin, featuring 35mA to 80mA output. The polarity of the CE pin can be selected.

The Rx5RL Series Voltage Regulator is a simple CMOS-based voltage regulator from RICOH with output current range of 25mA to 55mA.

The R3119N series are CMOS-based 36V input voltage detector ICs. Since the maximum input voltage of R3119N is 36V (absolute maximum rating: 50V) and R3119N can detect up to 12V without divider resistor, it is suitable for digital home appliances. There are two versions: A version has the CD pin for setting the output delay time. E version has the SENSE pin. The output delay time accuracy of R3119NxxxA is -50% to +80%. The reset signal of R3119NxxxE does not become unstable under the condition that the power supply is sufficient to operate the IC, and the "L" can be maintained. SOT-23-5 package is available. ∗) These products are suitable for automotive applications too. Please refer to our "Car Electronics Products Catalog" or contact us.

R1510S Series Automatic Mode shift 300mA 36V Input VR with VD is a CMOS-based auto mode switching voltage regulators featuring 300mA output current with voltage detector. The R1510S has a 36V maximum input voltage VR and VD on a single chip. As the voltage regulator is an automatic mode shift type, the operation can switch automatically to a fast response mode or a low power mode of the ECO function according to output current.

The R1510S Series are CMOS-based voltage regulator (LDO) ICs with a voltage detector (VD) that can provide 300mA of output current.