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LM2931AD33R| Datasheet

By datasheet - April 3rd, 2008

LM2931AD33R, LM2931AD50R, LM2931ADT50R, LM2931AXX33, LM2931AXX50, LM2931AZ50, LM2931AZ50AP, LM2931AZ50R, LM2931BV50, LM2931BXX50, LM2931BZ50, LM2931D-R, LM2931XX

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LM2931XX - LM2931AXX33 LM2931AXX50 - LM2931BXX50
Very low drop voltage regulators with inhibit function
Features

Very low dropout voltage (0.15 V typ. at 10 mA load) Low quiescent current (typ. 2.5 mA, at 100 mA load) Output current up to 100 mA Adjustable (from VOUT = 2.5 V only SO-8) and fixed (3.3 V & 5 V) output voltage version Internal current and thermal limit Load dump protection up to 60 V Reverse transient protection up to -50 V Temperature range: -40 to 125 C Package available: TO-92, DPAK, TO-220, SO-8 (with inhibit control)
DPAK SO-8 TO-220 TO-92

Description
The LM2931xx are very low drop regulators. The very low drop voltage and the low quiescent current make them particular suitable for low noise, low power applications and in battery powered systems. In the 8 pin configuration (SO8), fully compatible to the older L78Lxx family, a shut down Logic Control function is available. This means that when the device is used as a local regulator is possible to put a part of the Table 1. Device summary
Order codes Packages TO-220 DPAK TO-92 (BAG) LM2931AZ33R LM2931ADT50R LM2931BV50 LM2931AZ50R LM2931BZ50R

board in stand-by decreasing the total power consumption. Ideal for automotive application the LM2931 is protected from reverse battery installations or 2 battery jumps. During the transient, such as a a load dump (60 V) when the input voltage can exceed the specified maximum operating input voltage (26 V), the regulator will automatically shut down to protect both internal circuit and the load.

Output voltage TO-92 (Ammopak) (1) SO-8 LM2931AD33R LM2931AZ50AP LM2931BZ50AP LM2931AD50R LM2931BD50R LM2931D-R 3.3 V 5.0 V 5.0 V 2.5 to 26 V

1. Please note that in these cases pins are shaped according to tape & reel specifications.

February 2008

Rev 17

1/24
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