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R1510S Datasheet(PDF) 1 Page - RICOH electronics devices division |
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R1510S Datasheet(HTML) 1 Page - RICOH electronics devices division |
1 / 41 page R1510S Series Automatic Mode Shift 36 V 300 mA LDO NO.EA-185-140724 1 OUTLINE The R1510S is a voltage regulator (LDO) IC with a voltage detector (VD) featuring 300mA output current that is developed with CMOS process technology. Each IC is equipped with a voltage detector and a regulator that can provide the maximum 36V of operating voltage. This device has ECO function, which achieves low-power consumption and high-speed transient response by switching the IC to low-power consumption mode at light load condition and switching to high-speed mode at heavy load condition. The switching point is internally fixed inside the IC. The IC switches from low-power consumption mode to high- speed mode when IOUT=12mA (Typ.), and switch from high-speed mode to low-power consumption mode when IOUT=3mA (Typ.). Each IC is composed of a reference voltage unit, an error amplifier, a resistor network for setting output voltage, an output current limit circuit for preventing overcurrent destruction, and a thermal shutdown circuit. The output voltage and the detector threshold are internally fixed inside the IC. The output voltage accuracy is ±1.6% and the detector threshold accuracy is ±1.7%. The output voltage type is Nch open drain. The versions for the IC are selectable from A version (CE, VIN Detector), B version (SENSE Detector), C version (Release Delay Circuit, VIN Detector), and D version (Release Delay Circuit, VOUT Detector). FEATURES ● Input Voltage Range (Maximum Rating) ·······Max. 36.0V (50V) ● Operating Temperature Range ···················-40°C to 105°C ● Supply Current ·······································Typ. 110µA (High Speed Mode, VIN=14V) ● Supply Current ·······································Typ. 12.5µA (Low-power Consumption Mode, VIN=14V) ● Supply Current (Standby Mode) ·················Typ. 10µA (CE=0V, A Version) ● Output Voltage Range ······························2.5V to 12.0V (0.1V step) ● Dropout Voltage······································Typ. 1.0V (IOUT=300mA, VOUT=5V) ● Output Voltage Accuracy··························· ±1.6% (Ta=25°C) ● Temperature Characteristics ······················Typ. ±150ppm/°C (Output Voltage) ● Detector Threshold ··································2.3V to 12.0V (0.1V steps) ● Detector Threshold Accuracy ·····················±1.7% (Ta=25°C) ● Temperature Characteristics ······················Typ. ±100ppm/°C (Detector Threshold) ● Output Type ···········································Nch Open Drain ● Line Regulation ······································Typ. 0.01%/V ● Package················································HSOP-8E ● Built-in Short Current Limit Circuit ···············Typ. 50mA ● Built-in Overcurrent Protection Circuit ● Built-in Thermal Shutdown Circuit ···············Shutdown Temperature: Typ. 140°C, ·······································································Release Temperature: Typ. 125°C ● Ceramic Capacitor Corresponding ··············6.8µF or more |
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