The SGM2021-3.3YN3G/TR is a low-power, low-dropout (LDO) linear regulator from SG Micro Corp. It is designed to provide a stable and accurate output voltage of 3.3V from a wide input voltage range. This regulator is suitable for various portable and battery-powered applications due to its low quiescent current and small package size.

Applications

• Portable Electronics: Smartphones, tablets, and other mobile devices.
• Battery-Powered Equipment: Wireless sensors, remote controls, and handheld instruments.
• Wearable Devices: Smartwatches, fitness trackers, and health monitoring devices.
• Microcontroller Power: Powering microcontrollers and other digital logic circuits.
• RF Applications: Providing stable voltage for RF transceivers and amplifiers.

Features

• Low Dropout Voltage: Ensures stable output voltage even with low input voltage.
• Low Quiescent Current: Minimizes power consumption in standby mode.
• Stable with Ceramic Capacitors: Provides stable operation with small ceramic output capacitors.
• Over-Current Protection: Protects the regulator and the load from damage due to excessive current.
• Thermal Shutdown Protection: Prevents overheating and potential damage to the regulator.
• Small Package: Available in a small package for space-constrained applications.

Benefits

• Extended Battery Life: Low quiescent current maximizes battery life in portable devices.
• Stable Power Supply: Provides a stable and accurate output voltage for reliable system operation.
• Protection Against Overload: Over-current and thermal shutdown protection enhances system reliability.
• Reduced Board Space: Small package size allows for compact designs.
• Simplified Design: Stable with ceramic capacitors simplifies circuit design and reduces BOM cost.

Additional Details

The SGM2021-3.3YN3G/TR typically operates with an input voltage range of 2.5V to 5.5V. It is crucial to consult the datasheet for the specific operating conditions, including recommended input and output capacitor values. The regulator's dropout voltage is typically a few hundred millivolts at the rated output current. The device includes short circuit current limiting and over temperature protection. The Enable pin allows the regulator to be shut down when not in use, further reducing power consumption. Package type: SOT-23.