Key facts
- Brand
- Ricoh
- Model
- R1182X
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-07-09
Start here

Ricoh R1182x Series LDO Regulator Datasheet
The Ricoh R1182x Series consists of CMOS-based positive voltage regulator ICs designed for high output voltage accuracy and low supply current. These regulators utilize seamless technology to improve transient response across all load ranges while maintaining a typical no-load consumption current of 3.01µA. The series is available in SOT-23-5 and ultra-small DFN(PLP)1616-6 packages, facilitating high-density mounting on printed circuit boards.
Key features include a built-in low on-resistance transistor for low dropout voltage, a current limit circuit to prevent destruction by excess current, and a fold-back protection circuit. The output voltage is fixed with high accuracy, with a temperature-drift coefficient of Typ. +100ppm/°C. The ICs are suitable for applications requiring a stable voltage reference or power source for battery-powered equipment such as cameras, camcorders, and mobile communication devices.
Ricoh R1182X specifications
| Supply Current (Typ) | 3.01µA |
|---|---|
| Standby Current | Typ. 0.1µA |
| Input Voltage Range | 1.5V to 6.0V |
| Output Voltage Accuracy | +/-1.0% |
| Dropout Voltage (Typ) | 0.23V |
| Operating Temperature Range | -40 to 85 °C |
| Output Current | 150 mA |
| Short Current Limit | 50 mA |
All Ricoh R1182X documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the typical supply current of the R1182x series?
The typical supply current at no load is 3.01µA.
What packages are available for the R1182x series?
The series is available in SOT-23-5 and DFN(PLP)1616-6 packages.
What is the maximum output current of the R1182x Series?
The regulator features a seamless low supply current capability of 150mA.
What is the typical dropout voltage at full output current?
The typical dropout voltage is 0.23V when the output current is 150mA and the output voltage is 2.8V.
