TS33000

TS33000 High Efficiency Synchronous DC/DC Buck Converter TRIUNE PRODUCTS Features Fixed Output option has automatic low power PFM mode for reduced quiescent current at light loads 2.25MHz +/- 10% fixed switching frequency Fixed output voltages: 0.8V, 0.9V, 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V with +/- 2% output tolerance Input voltage range: 2.0V to 5.5V Voltage mode PWM control with input voltage feed forward compensation Voltage supervisor for VOUT reported at the PG pin Input supply under voltage lockout Soft start for controlled startup with no overshoot Full protection for over-current, over-temperature, and VOUT overvoltage Less than 100nA in shutdown mode Multiple enable pins for flexible system sequencing Low external component count Junction operating temperature -40C to 125C Packaged in a 16 pin QFN (3x3) Applications Point of load Systems with deep submicron ASICs/FPGAs Set-top box Communications equipment Portable and handheld equipment Description The TS33000 is a DC/DC synchronous switching regulator with fully integrated power switches, internal compensation, and full fault protection. The switching frequency of 2.25MHz enables the use of extremely small filter components, resulting in smaller board space and reduced BOM costs. When the input current is greater than approximately 50mA, the TS33000 utilizes PWM voltage mode feedback with input voltage feed-forward to provide a wide input voltage rang...