DESCRIPTION
The LT ®1614 is a fixed frequency, inverting mode switching reglator that operates from an input voltage as low as 1V. Utilizing a low noise topology, the LT1614 can generate a negative output down to –24V from a 1V to 5V input. Fixed frequency switching ensures a clean output free from low frequency noise. The device contains a low-battery detector with a 200mV reference and shuts down to less than 10µA. No load quiescent current of the LT1614 is 1mA and the internal NPN power switch handles a 500mA current with a voltage drop of just 295mV.

FEATURES
■ Better Regulation Than a Charge Pump
■ 0.1Ω Effective Output Impedance
■ –5V at 200mA from a 5V Input
■ 600kHz Fixed Frequency Operation
■ Operates with VIN as Low as 1V
■ 1mA Quiescent Current
■ Low Shutdown Current: 10µA
■ Low-Battery Detector
■ Low VCESAT Switch: 295mV at 500mA

APPLICATIONS
■ MR Head Bias
■ LCD Bias
■ GaAs FET Bias
■ Positive-to-Negative Conversion