Description

The R1117-1.8 is a Low Dropout Voltage Regulator that comes under the category of IC chips. It has an output current of up to 0.8/1.0A, with fixed and adjustable voltage versions available. The fixed version is offered in output voltages of 1.5V, 1.8V, 2.5V, 2.85V, 3.0V, 3.3V, 3.6V, and 5.0V. The adjustable version has a Vref of 1.25V. This regulator has an internal current and thermal limit and is available in ±1% (at 25°C) and 2% in all temperature ranges. It has a temperature range of 0°C to 125°C.

Specifications and features

• Low dropout voltage (1V Typ.)
• 2.85V device performances are suitable for SCSI-2 active termination
• Output current up to 0.8/1.0A
• Fixed output voltage of: 1.5V, 1.8V, 2.5V, 2,85V, 3.0V, 3.3V, 3.6V, 5.0V
• Adjustable version availability (Vref=1.25V)
• Internal current and thermal limit
• Available in ±1% (at 25°C) and 2% in all temperature ranges
• Supply voltage rejection: 75dB (TYP)
• Temperature range: 0°C to 125°C

Application Scenarios

The R1117-1.8 voltage regulator is ideal for applications that require a low dropout voltage and a stable output voltage. The 2.85V device performances are suitable for SCSI-2 lines active termination. This regulator is used in various applications such as battery-powered devices, embedded systems, automotive electronics, industrial automation, and telecommunications equipment.

Comparison

• Low dropout voltage
• Adjustable and fixed versions available
• High efficiency
• Internal current and thermal limit

• A fixed version may not be suitable for all applications.