THV3056 Datasheet | THine Electronics

THV3056_Rev.2.00_E 3ch Buck/Boost 2ch CP 1ch HVLDO 1ch LVLDO Controller Description THV3056 is a 3ch Buck/Boost Controller IC which enables to design simple & low cost multi-channel power supply system. Ch-1(fixed Boost), ch-2 and ch-3(fixed Buck) are PWM controllers. As to ch-2, the output of 1.2V is available because the reference voltage of ch-2 is 0.85V. VGH and VGL are selectable Positive/Negative charge pumps and PFM controller. Built-in high voltage LDO and V buffer amplifier facilitate to design various power supply systems for large scale TFT panels. THV3056 achieves easy phase pensation even with a ceramic capacitor for the output. SS_1/2/3, SS_SW, DTC1/2/3, DTC_VGH/DTC_VGL and SCP help to design user defined soft start time, dead time and timer latch delay time. Two types of startup sequence are selectable by controlling SEL1 pin. THV3056 is suitable for power supply system of TFT LCD bias and system board with multi -channel power supply. Features - QFN 64 pin package - Input Voltage range : 4.2~ 15V - Push Pull output for direct Power MOS driving - Ceramic Capacitors are available for output - plete PWM mode controller - Positive/Negative charge pumps (selectable PFM mode) - Adjustable switching frequency up to 1MHz - Timer Latch Protection - System UVLO function - Adjustable Soft Start time - Adjustable Timer Latch Delay time - Adjustable Dead Time Control - Thermal Shutdown - Ch-1, Boost converter - Ch-2, Synchronous Buck converter - Ch-3, Boost/Buck/Inverting converter - High voltage LDO - LDO of 3.3V - V Buffer Amplifier Applications - TFT-LCD Bias power supply Pin Assignment XTEST VCC V_OUT3 OUT3 NC PGND3 V_VGH V_VGL OUT_VGL NC PGND_CP OUT_VGH NC VO_1IN OUT_HLDO INV_HLDO 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 OUT1 PGND1...