MIC2619

MIC2619 www.DataSheet4U.com 1.2MHz PWM Boost Converter with OVP General Description The MIC2619 is a 1.2MHz pulse width modulated (PWM) step-up switching regulator that is optimized for low power, high output voltage applications. With a maximum output voltage of 35V, and a switch current of over 350mA, the MIC2619 can easily supply most high voltage bias applications, such as TV tuners. The MIC2619 implements a constant frequency 1.2MHz PWM current-mode control scheme. The high frequency PWM operation saves board space by reducing external component sizes. The additional benefit of the constant frequency PWM control scheme as opposed to variable frequency control schemes is lower output noise and smaller input ripple injected back to the battery source. The MIC2619 has programmable overvoltage protection to ensure output protection in case of fault condition. The MIC2619 is available in a low profile Thin SOT-23 6pin package. The MIC2619 has a junction temperature range of –40°C to +125°C. All support documentation can be found on Micrel’s web site at: www.micrel.com. Features 2.8V to 6.5V Input Voltage 350mA Switch Current Output Voltage up to 35V 1.2MHz PWM Operation 1.265V Feedback Voltage Programmable Over-Voltage Protection (OVP) <1% Line Regulation <1µA Shutdown Current Over-Temperature Protection Under-Voltage Lock Out (UVLO) Low Profile Thin SOT-23-6 Package –40°C to +125°C Junction Temperature Range Applications Bias Supply Application...