Manufacturer: Analog Devices

Key Specifications

• Package: SOT-23-5
• Output Voltage: 5V
• Output Current: 50mA
• Switching Frequency: 1MHz
• Input Voltage Range: 2.0V to 5.5V
• Operating Temperature: -40°C to +85°C
• Topology: Charge Pump (Voltage Doubler)
• Shutdown: Yes

The MAX1683EUK+T is a compact charge pump DC-DC converter from Analog Devices, designed to generate a regulated 5V output from a low-voltage input supply. Housed in a space-saving SOT-23-5 package, this device is ideal for battery-powered and portable applications where board space is limited.

Key Features

• Fixed 5V output with up to 50mA load current
• Input voltage range from 2.0V to 5.5V
• 1MHz switching frequency for small external components
• Low quiescent current and high efficiency charge pump topology
• Shutdown mode for power saving
• Operating temperature range -40°C to +85°C
• Available in SOT-23-5 package (EUK+T suffix indicates tape-and-reel)

Applications

• Battery-powered devices (e.g., PDAs, handheld instruments)
• Smart card readers
• Operational amplifier power supplies
• Local 5V rail generation from 3.3V or lower supplies
• Portable medical devices

Selection Guidance

The MAX1683EUK+T is suitable for designs requiring a simple, low-cost voltage conversion without inductors. For higher output current or adjustable output versions, please refer to other members of the MAX168x family. Ensure input and output capacitors are placed close to the device as per the datasheet recommendations. For detailed electrical characteristics and layout guidelines, consult the official datasheet.