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The MAX1736EUT42 is a low-dropout (LDO) linear regulator manufactured by Maxim Integrated (now part of Analog Devices). Below are its factual specifications, descriptions, and features:

Specifications:

• Manufacturer: Maxim Integrated (MAXIM)
• Output Voltage: 4.2V (fixed)
• Output Current: Up to 300mA
• Dropout Voltage: 120mV (typical) at 100mA load
• Input Voltage Range: 2.5V to 5.5V
• Quiescent Current: 40µA (typical)
• Line Regulation: ±0.05% (typical)
• Load Regulation: ±0.1% (typical)
• Operating Temperature Range: -40°C to +85°C
• Package: SOT-23-6

Descriptions:

The MAX1736EUT42 is a low-noise, low-dropout linear regulator designed for battery-powered applications. It provides a fixed 4.2V output with high accuracy and low quiescent current, making it suitable for portable devices. The device includes thermal shutdown and current-limit protection.

Features:

• Ultra-Low Dropout Voltage: 120mV at 100mA load
• Low Quiescent Current: 40µA (typical)
• Stable with Low-ESR Capacitors: Works with ceramic capacitors
• Thermal Shutdown Protection: Prevents overheating
• Current-Limit Protection: Safeguards against excessive load current
• Fixed Output Voltage: 4.2V (no external resistors needed)
• Wide Input Voltage Range: 2.5V to 5.5V
• SOT-23-6 Package: Compact footprint for space-constrained designs

This information is based solely on the manufacturer's datasheet and technical documentation.