Automatic Mode Shift 36V 300mA LDO
The R1510S Series are CMOS-based voltage regulator (LDO) ICs with a voltage detector (VD) that can provide 300mA of output current. Each IC is equipped with a voltage detector and a regulator that can provide the maximum 36V of operating voltage. This series has ECO function, which achieves low-power consumption and high-speed transient response by switching the ICs 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 ICs. The ICs switch 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 ICs 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).
|Input Voltage Range (Maximum Rating)||Max. 36.0V (50V)|
|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 steps)|
|Dropout Voltage||Typ. 1.0V (IOUT=300mA, VOUT=5V)|
|Output Voltage Accuracy||±1.6% (Ta=25ºC)|
|Temperature Characteristics||Typ. ±150ppm/ºC (Output Voltage)|
|Detector Threshold||2.3V to 12.0V (0.1V steps)|
|Detector Threshold Accuracy||±1.7% (Ta=25ºC)|
|Temperature Characteristics||Typ. ±100ppm/ºC (Detector Threshold)|
|Output Type||Nch Open Drain|
|Operating Temperature Range||-40ºC to 105ºC|
|Line Regulation||Typ. 0.01%/V|
|Built-in Short Current Limit Circuit||Typ. 50mA|
|Built-in Overcurrent Protection Circuit|
|Built-in Thermal Shutdown Circuit||Shutdown Temperature: Typ. 140ºC,
Release Temperature: Typ. 125ºC
|Ceramic Capacitor Corresponding||6.8µF or more|
- ・Power source for accessories such as car audios, car navigation systems, and ETC systems
- ・Power source for notebook PCs, digital TVs, telephones, private LAN systems, etc.
- ・Power source for office equipments such as copiers, printers, facsimiles, scanners, and projectors
|Data Sheet||Flyer||Package Info.||Mark Info.||Quality
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