| R1250V Series |
Negative Output Charge Pump Regulator |
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The R1250Vxx1A Series are Negative Output Charge Pump Regulator ICs which can be developed as a controller of local power supply for portable appliances and small electric appliances used with batteries, with low supply current by CMOS process. Each of these ICs consists of an oscillator, a control circuit, a reference voltage unit, an error amplifier, an output driver circuit. The R1250Vxx1A can be easily supply negative voltage, or regulated setting output voltage in the range from -2V to -4V. The chip enable function works to shut down the internal circuit and reduces supply current at the stand-by mode, therefore the R1250Vxx1A is very suitable for the application such as portable systems that require low supply current. Since the package for this IC is TSSOP8 package (TSSOP8 in EIAJ standard), high density mounting of the ICs on board is possible. |
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| Feature |
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| ● Output Voltage Accuracy | ±3.0%(VIN=5.0V, CIN=CP=COUT=4.7µF, Set Output Voltage=-3.0V, IOUT=0mA/10mA) | |
| ±9.0%(VIN=5.0V, CIN=CP=COUT=4.7µF, Set Output Voltage=-3.0V, IOUT=50mA) | ||
| ● Output Voltage |
Stepwise setting with a step of 0.1V in the range from -2.0V to 4.0V is possible | |
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| ● Oscillator Frequency | TYP. 280kHz | |
| ● Chip Enable Function (Active at "L") | ||
| ● Package | TSSOP8 | |
| Applications | ||
| ● Power source for Disk-Drives. | ||
| ● Power source for hand-held communication equipment and battery-powered equipment. | ||
| ● Power source for PC peripherals and ADD-ON cards. | ||
| ● Power source for portable audio-visual appliances such as cameras. | ||
| ● Local power supply for small electric appliances. | ||
| Data Sheet(PDF) | ||
| R1250V Series | ||