Product Summary

The LM2990T-12 is a three-terminal, low dropout, 1 ampere negative voltage regulator available with fixed output voltages of -5, -5.2, -12, and -15V. It uses new circuit design techniques to provide low dropout and low quiescent current. The applications of the LM2990T-12 include: (1)Post switcher regulator; (2)Local, on-cardregulation; (3)Battery operated equipment.

Parametrics

LM2990T-12 absolute maximum ratings: (1)Input Voltage: -26V to +0.3V; (2)ESD Susceptibility: 2kV; (3)Power Dissipation: Internally Limited; (4)Junction Temperature(Tj max): 125℃; (5)Storage Temperature: -65℃ to +150℃; (6)Lead Temperature(Soldering,10sec.): 260℃.

Features

LM2990T-12 features: (1)5% output accuracy over entire operating range; (2)Output current in excess of 1A; (3)Dropout voltage typically 0.6V at 1A load; (4)Low quiescent current; (5)Internal short circuit current limit; (6)Internal thermal shutdown with hysteresis; (7)Functional complement to the LM2940 series.

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LM2990T-12
LM2990T-12
National Semiconductor (TI)
Low Dropout (LDO) Regulators
Data Sheet
0-270: $1.54
270-540: $1.34
540-1035: $1.07
1035-2520: $1.02
LM2990T-12/NOPB
LM2990T-12/NOPB
National Semiconductor (TI)
Low Dropout (LDO) Regulators NEG LDO REG
Data Sheet
0-1: $2.15
1-25: $1.73
25-100: $1.57
100-250: $1.42