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600kHz/1.2MHz PWM Step-Up RegulatorThe ISL97519A is a high frequency, high efficiency step-upvoltage regulator operated at constant frequency PWMmode. With an internal 2.0A, 200mΩ MOSFET, it can deliverup to 1A output current at over 90% efficiency. Twoselectable frequencies, 600kHz and 1.2MHz, allow trade offsbetween smaller components and faster transient response.An external compensaTIon pin gives the user greaterflexibility in setTIng frequency compensaTIon allowing the useof low ESR Ceramic output capacitors.When shut down, it draws <1μA of current and can operatedown to 2.3V input supply. These features along with1.2MHz switching frequency makes it an ideal device forportable equipment and TFT-LCD displays.The ISL97519A is available in an 8 Ld MSOP package with amaximum height of 1.1mm. The device is specified foroperaTIon over the full -40°C to +85°C temperature range.
