The R1170H181B-T1 is a low-dropout (LDO) voltage regulator manufactured by Ricoh. It is designed to provide a stable and accurate 1.8V output voltage from an input voltage range of 1.4V to 6.0V. This regulator is part of the R1170 series, known for its low supply current and various protection features.

Applications

• Microcontroller power supply
• Portable electronic devices (smartphones, tablets)
• Battery-powered systems
• Sensor power
• Wireless communication devices

Features

• Output Voltage: Fixed 1.8V output.
• Input Voltage Range: 1.4V to 6.0V.
• Low Supply Current: Minimizes power consumption and extends battery life.
• Overcurrent Protection: Protects the regulator and load from excessive current.
• Short-Circuit Protection: Protects the regulator and load from short circuits.
• Thermal Shutdown: Shuts down the regulator if the temperature becomes too high.
• Package: Compact package for space-constrained applications.

Benefits

• Stable Voltage Supply: Provides a consistent 1.8V output for reliable operation of connected devices.
• Extended Battery Life: Low supply current reduces power consumption.
• Robust Protection: Overcurrent and short-circuit protection enhance system reliability.
• Small Form Factor: Enables integration into compact devices.
• Ease of Use: Simple to implement with minimal external components.

Additional Details

The R1170H181B-T1 utilizes a CMOS process for low power consumption and high accuracy. It includes built-in protection circuits to ensure reliable operation in various conditions. The regulator requires external capacitors for stability; the datasheet provides specific recommendations for capacitor selection. Proper layout and component selection are critical for optimal performance. Consult the datasheet for detailed electrical characteristics and application guidelines. The T1 indicates the package type, and additional suffixes may denote specific tape and reel options.