LM2931 is a very low drop regulator. It is ideal for automotive applications and prevents battery reverse mounting or 2 battery jumps. During transient processes, such as 60 V load dumps, when the input voltage exceeds the specified maximum working input voltage of 26 V, the regulator automatically shuts down to protect the internal circuit and load.
The extremely low step-down and low static current make them particularly suitable for low noise, low power applications and battery powered systems. In 8-pin configuration (SO-8), fully compatible with older L78L series, with shutdown logic control. This means that a portion of the board can be placed on standby when the device is used as a local regulator, thus reducing the total power consumption.
Features
● AEC-Q100 qualified (DPAK only)
● Very low dropout voltage (90 mV typ. at 10 mA load) • Very low dropout voltage (90 mv 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 = 2.5V only SO-8) and fixed (3.3V and 5V) 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)
Schematic diagram
Pin configuration
Application circuits
Application circuit for fixed output
Application circuit for adjustable output
