DESCRIPTIO U
The LT ®1534/LT1534-1 are a new class of switching regulator designed to reduce conducted and radiated electromagnetic interference (EMI). Ultralow noise and EMI are achieved by providing user control of the output switch slew rates. Voltage and current slew rates can be independently programmed to optimize switcher harmonic content versus efficiency. The LT1534/LT1534-1 can reduce high frequency harmonic power by as much as 40dB with only minor losses in efficiency.

FEATURES
■ Greatly Reduced Conducted and Radiated EMI
■ Low Switching Harmonic Content
■ Independent Control of Switch Voltage and
Current Slew Rates
■ 2A Current Limited Power Switch
■ Regulates Positive and Negative Voltages
■ 20kHz to 250kHz Oscillator Frequency
■ Easily Synchronized to External Clock
■ Wide Input Voltage Range: 2.7V to 23V
■ Low Shutdown Current: 12µA Typical
■ Easier Layout than with Conventional Switchers

APPLICATIONS
■ Precision Instrumentation Systems
■ Isolated Supplies for Industrial Automation
■ Medical Instruments
■ Wireless Communications
■ Single Board Data Acquisition Systems