| RP105 Series |
Low Voltage 400mA LDO Regulator |
|
| The RP105 Series are 400mA output type CMOS-based voltage regulator ICs with capability of low input voltage (Min. 0.9V) and low output voltage (Min. 0.6V). These ICs are remarkably improved the performance at low input voltage compared with conventional low voltage LDOs, and two power supply voltage type. (Another power source, Bias pin voltage must be Min. 2.4V). Each of these ICs consists of a voltage reference unit, an error amplifier, resistor-net for voltage setting, a current limit circuit to avoid the destruction, a UVLO circuit with monitoring input voltage, and so on. The RP105 Series have the ultra low on resistance output driver, the on resistance is Typ. 0.4Ω (@0.8V output, IOUT=300mA). The built-in driver is Nch MOSFET, thus the load transient response is excellent, (under the condition of the current between 1mA and 400mA, tr=0.5us, the undershoot level is approximately 50mV). The output voltage of these ICs is fixed with high accuracy. Since the packages for these ICs are DFN(PLP)1212-6, SOT-23-5 and SC-88A therefore high density mounting of the ICs on boards is possible. |
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| Feature |
|
| ● |
Typ 28µA |
| ● |
TYP. 0.1µA |
| ● Low Dropout Voltage |
Typ 180mV (IOUT=400mA, Bias=3.6V) |
| ● |
Typ 80dB (f =1kHz, VIN Ripple) Typ 50dB (f =1kHz, BIAS Ripple) |
| ● High Output Voltage | Accuracy Typ ±15mV (Ta=25 °C) Typ ±20mV (-40°C <= Ta <= 85°C) |
| ● Low Temperature-Drift Coefficient of Output Voltage | Typ ±50ppm/°C |
| ● Excellent Line Regulation | Typ 0.1%/V |
| ● Small Packages | DFN(PLP)1212-6, SOT-23-5,SC-88 |
| ● Output Voltage | 0.6V, 0.7V, 0.8V, 0.9V, 1.0V, 1.2V, 1.3V, 1.4V, 1.5V |
| ● Built-in Fold-back protection circuit | Typ 120mA (Current at short mode) |
| ● Ceramic capacitors are recommended to be used with this IC | CBIAS=CVIN=1μF CVOUT=2.2μF or more |
| Applications | |
| ● Power source for portable communication equipment. | |
| ● Power source for electrical appliances such as cameras, VCRs and camcorders. | |
| ● Power source for battery-powered equipment. | |
| Data Sheet(PDF) | |
| RP105 Series | |