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LM2931AD33R Scheda tecnica(PDF) 1 Page - STMicroelectronics

Il numero della parte LM2931AD33R
Spiegazioni elettronici  Very low drop voltage regulators with inhibit function
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
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July 2008
Rev 18
1/23
23
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, SO-8 (with
inhibit control)
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 (SO-
8), 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
board in stand-by decreasing the total power
consumption. Ideal for automotive application the
LM2931xx 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.
TO-92
DPAK
SO-8
Table 1.
Device summary
Order codes
Output voltage
Packages
DPAK
TO-92 (BAG)
TO-92 (Ammopak) (1)
SO-8
LM2931AZ33R
LM2931AD33R
3.3 V
LM2931ADT50R
LM2931AZ50R
LM2931AD50R
5.0 V
LM2931BZ50R
LM2931BZ50AP
LM2931BD50R
5.0 V
LM2931D-R
2.5 to 26 V
1.
Please note that in these cases pins are shaped according to tape & reel specifications.
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