Boost Regulators, 1.5 A, 280 kHz/560 kHz
CS5171, CS5172, CS5173
The CS5171/2/3 products are 280 kHz/560 kHz switching re...
Boost
Regulators, 1.5 A, 280 kHz/560 kHz
CS5171, CS5172, CS5173
The CS5171/2/3 products are 280 kHz/560 kHz switching
regulators with a high efficiency, 1.5 A integrated switch. These parts operate over a wide input voltage range, from 2.7 V to 30 V. The flexibility of the design allows the chips to operate in most power supply configurations, including boost, flyback, forward, inverting, and SEPIC. The ICs utilize current mode architecture, which allows excellent load and line regulation, as well as a practical means for limiting current. Combining high frequency operation with a highly integrated
regulator circuit results in an extremely compact power supply solution. The circuit design includes provisions for features such as frequency synchronization, shutdown, and feedback controls for either positive or negative voltage regulation. These parts are pin−to−pin compatible with LT1372/1373.
Part Number CS5171 CS5172 CS5173
Frequency 280 kHz 280 kHz 560 kHz
Feedback Voltage Polarity positive negative positive
Features
Integrated Power Switch: 1.5 A Guaranteed Wide Input Range: 2.7 V to 30 V High Frequency Allows for Small Components Minimum External Components Easy External Synchronization Built in Overcurrent Protection Frequency Foldback Reduces Component Stress During an
Overcurrent Condition
Thermal Shutdown with Hysteresis Regulates Either Positive or Negative Output Voltages Shut Down Current: 50 mA Maximum Pin−to−Pin Compatible with LT1372/13...