Good Transient Response Low Voltage 500mA LDO
The RP111x Series are CMOS-based LDO regulators featuring 500mA output current. The input voltage is as low as 1.4V and the output voltage can be set from 0.7V. Due to a built-in 0.46Ω (at VOUT=2.8V) on-resistor, RP111x can provide a low dropout voltage. RP111x also features an excellent line transient response, ripple rejection at 75dB, and low noise. The output voltage accuracy is as high as ±0.8% and the temperature drift coefficient of output voltage is low at ±30ppm/°C. The accuracy of the output voltage of RP111x includes the temperature characteristics and the load transient response has been improved. The typ. and max value of under/overshoot for various output current are shown in the typical characteristics in the datasheet, therefore the accuracy of the output voltage estimation will be easy on the actual operating cases.
In addition to a fold-back protection circuit built into conventional regulators, RP111x contains a thermal shutdown circuit and an inrush current limit circuit. SOT-23-5 and SOT-89-5 packages, a 1.2mm square DFN1212-6 package are available.
|Supply Current||Typ. 80µA|
|Standby Current||Typ. 0.1µA|
|Dropout Voltage||Typ. 0.23V (IOUT=500mA, VOUT=2.5V)|
|Ripple Rejection||Typ. 75dB (f=1kHz)
Typ. 70dB (f=10kHz)
|Output Voltage Accuracy||±0.8% (VOUT ≥1.8V)|
|Output Voltage Temperature Coefficient||Typ. ±30ppm/°C (VOUT ≥1.8V)|
|Line Regulation||Typ. 0.02%/V|
|Packages||DFN1212-6, SOT-23-5, SOT-89-5|
|Input Voltage Range||1.4V to 5.25V|
|Output Voltage Range||0.7V to 3.6V (0.1V steps)
(For other voltages, please refer to MARK INFORMATIONS.)
Adjustable Output Voltage Type : 0.7V to 3.6V
|Built-in Foldback Protection Circuit||Typ. 50mA (Current at short mode)|
|Thermal Shutdown Temperature||165°C|
|Inrush Current Limit||Typ.400mA (for 180µs after start-up)|
|Ceramic capacitors are recommended to be used with this IC||1.0µF or more|
- •Power source for portable communication equipment.
- •Power source for electrical appliances such as cameras, VCRs and camcorders.
- •Power source for battery-powered equipments.
- •Power source for electrical home appliances.
|Data Sheet||Flyer||Package Info.||Mark Info.||Quality Assurance Data|
All PDF files are less than 1MB unless otherwise stated.
- Technical Support