The Ricoh R1141Q381D-TR is a voltage regulator IC designed for use in a variety of power management applications. It is a low-dropout (LDO) regulator, which means it can maintain a stable output voltage even when the input voltage is close to the desired output voltage. This is particularly useful in battery-powered devices where the battery voltage decreases over time.

Applications

• Battery-powered devices: Smartphones, tablets, and other portable electronics.
• Power management systems: Used to regulate voltage in various electronic circuits.
• Microcontroller power supplies: Provides a stable voltage source for microcontrollers.
• Wireless communication devices: Powers RF transceivers and other sensitive components.
• Wearable electronics: Smartwatches, fitness trackers, and other wearable devices.

Features

• Low dropout voltage: Ensures stable output voltage even with low input voltage.
• Low quiescent current: Minimizes power consumption in standby mode.
• Overcurrent protection: Protects the device from damage due to excessive current.
• Thermal shutdown protection: Protects the device from damage due to overheating.
• Small package: Allows for compact circuit designs.
• High output voltage accuracy: Provides a precise and stable output voltage.

Benefits

• Extended battery life: Low quiescent current helps to prolong battery life in portable devices.
• Improved system reliability: Overcurrent and thermal shutdown protection enhance system reliability.
• Reduced component count: Integrated features simplify circuit design and reduce the number of external components required.
• Stable performance: Low dropout voltage ensures stable performance even with varying input voltage.
• Compact designs: Small package allows for use in space-constrained applications.

Additional Details

The R1141Q381D-TR has a fixed output voltage of 3.8V. The operating temperature range is typically -40°C to +85°C. The package type is DFN(PLP)4-3. The device is RoHS compliant, meaning it is free from hazardous substances. It features a built-in short-circuit protection and inrush current protection circuit.