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R1510S Datasheet, PDF (1/41 Pages) RICOH electronics devices division – Input Voltage Range (Maximum Rating) Max. 36.0V (50V)
R1510S Series
Automatic Mode Shift 36 V 300 mA LDO
NO.EA-185-140724
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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