REG113EA-2.85/250

Product Overview

The REG113EA-2.85/250 from Texas Instruments is a single-output linear voltage regulator that provides a fixed positive 2.85 V rail. The device accepts a maximum input voltage of 10 V and can deliver up to 400 mA, with a maximum dropout of 0.41 V at 400 mA. It is offered in an 8-VSSOP surface-mount package, with a 3.00 mm body width. The regulator includes an enable control, over-current protection, and over-temperature protection. Its quiescent current is 500 µA, maximum supply current is 1 mA, and power-supply rejection is 65 dB at 120 Hz. The operating temperature range is -40°C to 85°C.

Key Features

• Fixed positive 2.85 V output from a single regulator channel.
• Rated output current of 400 mA with a maximum dropout of 0.41 V at 400 mA.
• Maximum input voltage of 10 V and maximum supply current of 1 mA.
• Enable control feature allows the output to be enabled or disabled.
• Over-current and over-temperature protection features are included.
• 500 µA quiescent current and 65 dB power-supply rejection at 120 Hz.
• 8-VSSOP surface-mount package with 3.00 mm width.
• Operating temperature range of -40°C to 85°C.

Applications

• Generating a fixed 2.85 V positive rail for board-level loads that draw up to 400 mA.
• Controlling a downstream 2.85 V rail with the enable feature during power-up or power-down sequences.
• Regulating a 2.85 V rail from an input that may contain ripple, using the 65 dB PSRR at 120 Hz.
• Supplying a 2.85 V rail to loads that may experience overload or elevated temperature conditions.

Design & Procurement Notes

The fixed 2.85 V output should be matched to the load requirement, since the output type is fixed. The 10 V maximum input rating should be checked against upstream supply variations and transient conditions. The 0.41 V dropout at 400 mA should be considered when selecting the input rail and evaluating headroom under load. The 400 mA output rating and 500 µA quiescent current can be used for current budgeting. The enable control supports system power sequencing, while over-current and over-temperature protection can be included in fault-handling reviews. The 65 dB PSRR at 120 Hz is relevant when input ripple may affect the regulated 2.85 V output. The 8-VSSOP surface-mount package, 3.00 mm width, and -40°C to 85°C operating range should be reflected in PCB layout, thermal management, and environmental design.