The S-1111B18PN-NYD-TF is a positive voltage regulator IC manufactured by SII Semiconductor Corporation. This IC is designed to provide a stable and regulated output voltage of 1.8V, making it suitable for various electronic applications requiring a consistent power supply. Its compact package and efficient operation make it ideal for portable devices and battery-powered systems.

Applications

• Smartphones and mobile devices: Used in power management circuits to regulate voltage for various components.
• Wearable technology: Suitable for devices like smartwatches and fitness trackers due to its small size and low power consumption.
• IoT (Internet of Things) devices: Provides stable power for sensors, microcontrollers, and communication modules.
• Portable audio players: Ensures consistent audio quality by regulating the power supply to audio processing components.
• Battery-powered systems: Extends battery life with its high efficiency.

Features

• Output Voltage: Fixed 1.8V output voltage.
• High Output Voltage Accuracy: Provides a highly accurate output voltage, ensuring stable operation of connected devices.
• Low Dropout Voltage: Operates with a low input-output voltage differential, maximizing efficiency.
• Low Current Consumption: Minimizes power loss, extending battery life in portable applications.
• Overcurrent Protection: Protects the IC and connected components from damage due to excessive current.
• Thermal Shutdown Protection: Prevents overheating and potential damage by shutting down the IC at high temperatures.
• Small Package: Available in a compact package for space-constrained applications.

Benefits

• Stable Power Supply: Provides a consistent and reliable 1.8V output voltage, crucial for sensitive electronic components.
• Extended Battery Life: Low current consumption maximizes the operational time of battery-powered devices.
• Protection Against Damage: Overcurrent and thermal shutdown features safeguard the IC and connected components from potential failures.
• Compact Design: Small package allows for integration into densely populated circuit boards.
• Simplified Design: Fixed output voltage simplifies circuit design and reduces the need for external components.

Technical Specifications: The S-1111B18PN-NYD-TF operates within a specified input voltage range (typically 2.0V to 5.5V). It features a low quiescent current, typically in the microampere range, and a dropout voltage that ensures stable operation even when the input voltage is close to the output voltage. The device is available in a small SOT-23-5 package, making it easy to integrate into compact designs. The operating temperature range is typically -40°C to +85°C.