Professional IC Distribution & Technical Solutions

The R3119N028A-TR-JE is a voltage regulator IC manufactured by RICOH. Below are its key specifications, descriptions, and features:

Specifications:

• Manufacturer: RICOH
• Part Number: R3119N028A-TR-JE
• Package: SOT-23-5
• Output Voltage: 2.8V (Fixed)
• Output Current: 150mA (Max)
• Input Voltage Range: 2.5V to 6.0V
• Dropout Voltage: 160mV (Typ) @ IOUT = 100mA
• Quiescent Current: 35µA (Typ)
• Ripple Rejection: 70dB (Typ) @ 1kHz
• Operating Temperature Range: -40°C to +85°C
• Features: Low dropout, low quiescent current, built-in short-circuit protection

Descriptions:

The R3119N028A-TR-JE is a low-dropout (LDO) voltage regulator designed for stable power supply in battery-operated and portable devices. It provides a fixed 2.8V output with high accuracy and low power consumption.

Features:

• Low Dropout Voltage: Ensures stable operation even with low input voltages.
• Ultra-Low Quiescent Current: Ideal for battery-powered applications.
• High Ripple Rejection: Reduces noise in sensitive circuits.
• Short-Circuit Protection: Built-in safety feature.
• Thermal Shutdown: Prevents overheating.
• Small Package (SOT-23-5): Suitable for space-constrained designs.

This regulator is commonly used in IoT devices, wearables, sensors, and portable electronics.

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