Product Introduction

The BM1117 series of adjustable and fixed voltage regulators are designed to provide 1A output current and to operate down to 1V input-to-output differential. The dropout voltage of the device is guaranteed maximum 1.3V at maximum output current, decreasing at lower load currents.

On-chip trimming adjusts the reference voltage to within 1 PERCENT accuray. Current limit is also trimmed, minimizing the stress under overload conditions on both the regulator and power source circuitry.

The BM1117 devices are pin compatible with other three-terminal SCSI regulators and are offered in the low profile surface mount SOT-223 package and in the TO-252 (DPAK) plastic package.

   Product Features

Three Terminal Adjustable or Fixed Voltages*1.5V, 1.8V, 2.5V, 2.85V, 3.3V and 5.0V

Output Current of 1A

Operates Down to 1V Dropout

Line Regulation: 0.2 PERCENT Max.

Load Regulation: 0.4 PERCENT Max.

SOT-223 and TO-252 package available

   Product Applications

High Efficiency Linear Regulators

Post Regulators for Switching Supplies

5V to 3.3V Linear Regulator

Power Management for Notebook

Battery Chargers

Battery Powered Instrumentation

Active SCSI Terminators

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