The LP3963ES-3.3/NOPB is a 3.3V fixed output fast ultra-low-dropout (LDO) Linear Regulator operate from a 2.5 to 7V input supply. This device respond very fast to step changes in load which makes them suitable for low voltage microprocessor applications. The device is developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the device to operate under extremely low-dropout (LDO) conditions. The dropout voltage is typically 80mV at 300mA load current and 800mV at 3A load current.

• Low ground pin current
• 0.06% Load regulation
• 15µA Quiescent current in shutdown mode
• ±1.5% Output voltage accuracy
• ERROR flag indicates output status
• Minimum output capacitor requirements
• Overtemperature and overcurrent protection

The LM337T is an adjustable 3-terminal Negative Voltage Regulator, capable of supplying in excess of -1.5A over an output voltage range of -1.2V to -37V. This regulator is exceptionally easy to apply, requiring only 2 external resistors to set the output voltage and 1 output capacitor for frequency compensation. The circuit design has been optimized for excellent regulation and low thermal transients. Further, the LM137 series features internal current limiting, thermal shutdown and safe-area compensation, making them virtually blowout-proof against overloads. The LM337T serves a wide variety of applications including local on-card regulation, programmable-output voltage regulation or precision current regulation. The LM337T is ideal complements to the LM117/LM317 adjustable positive regulators.

• Output voltage adjustable from -1.2 to -37V
• 1.5A Output current specified, -55 to +150°C
• Line regulation typically 0.01%/V
• Load regulation typically 0.3%
• 0.002%/W Excellent thermal regulation
• 77dB Ripple rejection
• Excellent rejection of thermal transients
• 50ppm/°C Temperature coefficient
• Temperature-independent current limit
• Internal thermal overload protection