DESCRIPTION
The LT®3015 is a low noise, low dropout, negative linear regulator with fast transient response. The device supplies up to 1.5A of output current at a typical dropout voltage of 310mV. Operating quiescent current is typically 1.1mA and drops to < 1μA in shutdown. Quiescent current is also well controlled in dropout. In addition to fast transient response, the LT3015 exhibits very low output noise, making it ideal for noise sensitive applications.

FEATURES
■ Output Current: 1.5A
■ Dropout Voltage: 310mV
■ Precision Current Limit with Foldback
■ Low Output Noise: 60μVRMS (10Hz to 100kHz)
■ Low Quiescent Current: 1.1mA
■ Precision Positive or Negative Shutdown Logic
■ Fast Transient Response
■ Wide Input Voltage Range: –1.8V to –30V
■ Adjustable Output Voltage Range: –1.22V to –29.5V
■ Controlled Quiescent Current in Dropout
■ < 1μA Quiescent Current in Shutdown
■ Stable with 10μF Output Capacitor
■ Stable with Ceramic, Tantalum or Aluminum Capacitors
■ Thermal Limit with Hysteresis
■ Reverse Output Protection
■ 5-Lead TO-220 and DD-Pak, Thermally Enhanced
   12-Lead MSOP and 8-Lead 3mm × 3mm × 0.75mm
   DFN Packages

APPLICATIONS
■ Post-Regulator for Switching Supplies
■ Negative Logic Supplies
■ Low Noise Instrumentation
■ Industrial Supplies
■ Negative Complement to the LT1963A