RICOH Manuals

The R1514x series are CMOS-based positive voltage regulator (VR) ICs featuring 150mA output current. The R1514xxxxB 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 R1514x series. The operating temperature is −40°C to 105°C and the maximum input voltage is 36V, the R1514x series are very suitable for power source of car accessories. The regulator output voltage is fixed in the R1514xxxxB 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 R1514x series are CMOS-based voltage regulators featuring 150mA output current and 36V input voltage. In addition to a fold-back protection circuit built into conventional regulators, R1514x 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 R1514x series are very suitable for power source of car accessories.

The R1516x Series 150mA 36V Input LDO Regulator is a CMOS-based high-voltage resistant and low supply current voltage regulator IC that provides the minimum 150mA of output voltage. Internally, the R1516x Series consists of a Foldback Protection Circuit, and a Thermal Shutdown Circuit in addition to the basic regulator circuits. The operating temperature range is between –40ºC to 105ºC, and the maximum input voltage is 36V. All these features allow the R1516x Series to become an ideal power source of electric home appliances. The R1516x Series are available in fixed output voltage options between 1.8V and 6.2V in 0.1V steps. The output voltage accuracy is ±1%. The R1516x Series are available in two types of packages: SOT-89-5 that is for high-density mounting and HSOP-6J that is for high wattage.

R1516x series are CMOS-based voltage regulators featuring 150mA output current and 36V input voltage. In addition to a fold-back protection circuit built into conventional regulators, R1516x 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 R1516x series are very suitable for use in digital home appliances. Compared to the same 150mA output R1514x Series, R1516x offers an excellent load transient response.

The RP103x 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, 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. The line transient response and load transient response of the RP103x Series are excellent, thus these ICs are very suitable for the power supply for hand-held communication equipment. The output voltage of these ICs is fixed with high accuracy. Since the packages for these ICs are DFN(PLP)1010-4, SC-82AB, SC-88A (Limited), SOT-23-5, therefore high density mounting of the ICs on boards is possible.

The RP103x Series are CMOS-based LDO regulators featuring 150mA output current. The RP103x Series features supply current as low as 36μA, which is far lower than current products, 75dB ripple rejection, and low noise. The output voltage accuracy has been improved to ± 1% and the temperature drift coefficient of the output voltage is as low as ± 30ppm/°C.

The RP104x Series are CMOS-based voltage regulator ICs with high output voltage accuracy, extremely low supply current and low ON-resistance. Each of these ICs consists of a voltage reference unit, an error amplifier, resistor-net for voltage setting, a current limit circuit and a chip enable circuit. These ICs perform with ultra low supply current (Typ.1.0µA), which prolong the battery life. Since the packages for these ICs are DFN(PLP)1010-4, SOT-23-5 and SC-82AB (Limited), therefore high density mounting of the ICs on boards is possible.

The RP109x Series Low Noise 150mA LDO Regulator is a CMOS-based voltage regulator IC 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.

RP109x Series are CMOS-based LDO regulators featuring 150mA output. The input voltage (VIN) is as low as Min. 1.4V and the output voltage can be set from 0.8V. RP109x Series features an excellent line transient response, ripple rejection at 75dB, and low noise. The output voltage accuracy has been improved to ± 1% and the temperature drift coefficient of the output voltage is as low as ± 30ppm/°C. 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. RP109x Series contributes to the downsizing of the hand-held equipment because it can use the 0.1μF ceramic capacitor.

The R1182x Series is a CMOS-based positive voltage regulator IC with high output voltage accuracy and low supply current. The ICs have a fixed output voltage with high accuracy. The R1182x Series has low dropout voltage and low static current consumption. It improves transient response in all load ranges through seamless technology. It offers high density mounting capability and comes in various package options.

The R1182x Series are CMOS-based seamless LDO regulators featuring 150mA output. Ricoh unique seamless technology smoothly changes transient response according to a output current without switching to a low power mode. Compared to the same seamless R1116x Series (10μA), R1182x features low supply current and low voltage. Additionally, the output voltage accuracy has improved to ±1%. Standby mode and auto-discharge function are also available (see Selection Guide). Ceramic capacitors can be used.

The R1180x Series are CMOS-based voltage regulator ICs with high output voltage accuracy, extremely low supply current, and low ON-resistance. Each of these ICs consists of a voltage reference unit, an error amplifier, resistor-net for voltage setting, a current limit circuit which prevents the destruction by excess current, and so on. The output voltage of these ICs is fixed with high accuracy. B version has a chip enable pin, therefore ultra-low consumption current standby mode can be realized with the pin. Since the packages for these ICs are SOT-23-5 (R1180N Series), SC-82AB (R1180Q Series), and SON1612-6 (R1180D Series), therefore high density mounting of the ICs on boards is possible.

The R1180x Series Low Supply Current 150mA LDO is a CMOS LDO regulator featuring 150mA output. R1180x’s typical low supply current of 1μA makes it ideal for use in power supplies systems with the sleep mode on. The version that reduced supply current to the lowest possible level by eliminating the CE pin is also available.

The R1163x Series is a CMOS-based voltage regulator IC with high output voltage accuracy and low supply current. These ICs have chip enable function and realize a standby mode with ultra low supply current. To prevent destruction by over current, the current limit circuit is included. The R1163x Series has 3 modes. One is standby mode with CE or standby control pin. The other two modes are realized with ECO pin. Fast Transient Mode (FT mode) and Low Power Mode (LP mode) can be alternated with ECO pin. The consumption current is reduced in Low Power Mode compared to Fast Transient Mode. The output voltage is maintained between FT mode and LP mode. Furthermore, the reverse current protection circuit is built-in. Therefore, if a higher voltage than VDD pin is forced to the output pin, the reverse current to VDD pin is very small (Max. 0.1μA), making it suitable for backup circuit. Since the packages for these ICs are SOT-23-5, SON-6, and DFN(PLP)1616-6 packages, high density mounting of the ICs on boards is possible.