Overview
The OM767OSM from International Rectifier is a high-current, low dropout positive voltage regulator designed for demanding applications. These +3.3V voltage regulators are optimal for systems requiring low dropout voltages and come with protections like thermal overload, overcurrent, and against voltage spikes.
Features
Output Voltage: 3.3V with a tolerance guaranteed to ±%
Output Current: Capable of delivering 1.3A
Packaging: Available in 3-Pin Surface Mount (SMD-3) hermetic package, suitable for military/defense environments and high-reliability applications
Additional offerings in SMD-1, TO-204AA, and TO-257AA packages
Protection and Reliability
These voltage regulators come with built-in thermal overload protection, short circuit current limiting, and are capable of withstanding reverse polarity conditions and voltage spikes. The hermetic SMD-3 package helps ensure high reliability in stringent conditions.
Absolute Maximum Ratings
The absolute maximum ratings for the OM767OSM component include an input voltage of up to 30V, power dissipation of 13W, thermal resistance junction to case of 4.2°C/W, and operating junction temperature ranging from -55°C to +125°C.
Electrical Characteristics
The electrical characteristics of the OM767OSM are provided for an operational temperature range of -55°C to +125°C. Key specifications include:
Output Voltage: 3.235V to 3.365V over the input voltage range and output current limits
Line Regulation: Maintains regulation within a narrow range
Load Regulation, Dropout Voltage, and Thermal Regulation: Important parameters that specify the regulator’s response to changes in load, input voltage and operating temperature respectively
The device also offers a Ripple Rejection feature which minimizes the effect of input voltage ripple at the output, and has various quiescent and limit current specifications which ensure stable operation under different input voltages.
Design and Application Notes
Regulation is guaranteed up to the maximum power dissipation of 13W, and power dissipation is dependent upon the input/output differential voltage and the output current. The device’s stability and regulation characteristics are guaranteed by design, with testing performed at a constant junction temperature using a low duty cycle pulse technique.
Sourcing Information
The document also states that complete specifications apply over the full operating temperature range, ensuring that the OM767OSM remains reliable in a variety of conditions. More information and procurement options can be found on the International Rectifier website.
References:
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