The LM338T/NOPB is an adjustable 3-terminal positive Voltage Regulator, capable of supplying in excess of 5A over a 1.2 to 32V output range. They are exceptionally easy to use and require only 2 resistors to set the output voltage. Careful circuit design has resulted in outstanding load and line regulation-comparable to many commercial power supplies. A unique feature of the LM338T/NOPB family is time-dependent current limiting. The current limit circuitry allows peak currents of up to 12A to be drawn from the regulator for short periods of time. This allows the LM338T/NOPB to be used with heavy transient loads and speeds start-up under full-load conditions. Under sustained loading conditions, the current limit decreases to a safe value protecting the regulator.

• Specified Thermal Regulation
• Current Limit Constant with Temperature
• P+ Product Enhancement Tested
• Output is Short-circuit Protected
• Green Product, No Sb/Br

The LM337IMP is a three terminal adjustable negative voltage regulator in 4 pin SOT-223 package. This regulator is exceptionally easy to apply and requires only two external resistors to set output voltage and one output capacitor for frequency compensation. The circuit design has been optimized for excellent regulation and low thermal transients. The LM137 features internal current limiting, thermal shut down and safe area compensation by making them virtually blowout proof against overloads. This positive voltage regulator is used in wide variety of applications including local on-card regulation, programmable output voltage regulation or precision current regulation.

• Adjustable output voltage from -1.2V to -37V
• 1.5A output current
• Input voltage range from -4.2V to -50V
• Line regulation is typically 0.01%/V
• Load regulation is typically 0.3%
• Excellent thermal regulation of 0.002%/W
• Ripple rejection ratio of 77dB
• Output is short circuit protected
• Operating temperature range -40°C to 125°C
• 50ppm/°C temperature coefficient