peculiarity
Adjustable output voltage ranges from 3V to 24V, typically from -2V to 25V
Output current exceeds 1A
Typically, the voltage difference between 0.6V and 1A loads is 0.6V
Low quiescent current
Internal short-circuit current limit
With a delayed internal heat shutdown
TTL and CMOS compatible with ON/OFF switch^
Functional supplement of the LM2941 series
illustrate
The LM2991 is a low-dropout adjustable with a negative adjustment output voltage range of -3V to -24V. The LM2991 provides up to 1A load current and functions, with a remote power-off function with a single on/off pin^.
The LM2991 adopts new circuit design technology, providing a precise reference with low voltage drop, low quiescent current, and low temperature coefficient. The low dropout voltage for a 1A load current is usually 0.6V, and in the worst case, it guarantees a maximum of 1V across the entire operating temperature range. A load current with a quiescent current of 1A is usually 1 mA, with an input-output voltage difference greater than 3V. A unique circuit design where the internal bias power limits quiescent current to only 9 mA (typical) when voltage stabilization drops out (V OUT - V IN ≤ 3V).
The LM2991 provides short-circuit protection and thermal shutdown to improve equipment reliability, and during long heavy loads, it may inadvertently include lag. The LM2991 is available in 5-pin TO-220 and TO-263 packages and operates in automotive-grade temperatures rated from -40°C to +125°C. The Mingkang Aviation version is also available.
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Postal switching regulator
Locally, on the card, supervise
Battery-powered equipment