The R1140Q261B-TR is a voltage regulator IC manufactured by Ricoh. It is designed to provide a stable and regulated output voltage of 2.6V, suitable for a wide range of electronic applications. The "-TR" suffix indicates tape and reel packaging for automated assembly.

Applications

• Microcontroller Power: Providing a stable 2.6V power supply for microcontrollers and digital logic circuits.
• Sensor Applications: Supplying a regulated voltage to sensors and transducers requiring stable power.
• Portable Electronics: Power management for portable devices such as wearables and IoT gadgets.
• Wireless Communication: Regulating voltage for RF transceivers and wireless communication modules.
• Memory Devices: Supplying power to memory ICs like EEPROMs and SRAMs.

Features

• Fixed Output Voltage: Provides a stable 2.6V output voltage.
• Low Dropout Voltage: Ensures stable operation even when the input voltage is close to the output voltage.
• Low Quiescent Current: Minimizes power consumption in standby mode, extending battery life.
• Overcurrent Protection: Protects the regulator and connected circuits from damage due to excessive current.
• Short-Circuit Protection: Safeguards against short circuits, preventing damage to the regulator.
• Thermal Shutdown Protection: Protects the IC from overheating by shutting down the output when the temperature exceeds a safe level.
• Small Package: Available in a compact package for space-constrained applications.

Benefits

• Stable Power Supply: Provides a consistent and reliable voltage source for sensitive electronic components.
• Extended Battery Life: Low quiescent current helps to minimize power consumption and extend battery life in portable devices.
• Protection Against Fault Conditions: Overcurrent, short circuit, and thermal shutdown features protect the regulator and connected circuitry from damage.
• Simplified Circuit Design: Fixed output voltage simplifies circuit design and reduces the need for external components.
• Reduced Board Space: Small package size allows for integration into space-constrained applications.

Additional Details

The R1140Q261B-TR operates with an input voltage typically ranging from a few volts above the output voltage (2.6V) up to a maximum voltage specified in its datasheet. The output current capability and other detailed specifications such as ripple rejection and transient response, can be found in the official Ricoh datasheet. The package is typically a small surface-mount type like SOT-23 or DFN. The "-TR" suffix indicates tape and reel packaging suitable for automated assembly. This device is generally RoHS compliant. Expect output voltage accuracy within a few percent of the nominal value. The dropout voltage is typically around 200mV at the rated output current, depending on operating conditions.