LM5122QMH/NOPB Datasheet PDF - TI

●The LM5122QMH/NOPB is a multiphase capable synchronous Boost Controller intended for high-efficiency synchronous boost regulator applications. The control method is based upon peak current-mode control. current-mode control provides inherent line feed-forward, cycle-by-cycle current limiting and ease of loop compensation. The switching frequency is programmable up to 1MHz. Higher efficiency is achieved by two robust N-channel MOSFET gate drivers with adaptive dead-time control. User-selectable diode emulation mode also enables discontinuous mode operation for improved efficiency at light load conditions. An internal charge pump allows 100% duty cycle for high-side synchronous switch (Bypass operation). A 180° phase shifted clock output enables easy multi-phase interleaved configuration. Additional features include thermal shutdown, frequency synchronization, hiccup mode current limit and adjustable line undervoltage lockout.

● Peak current mode control

● Robust 3A Integrated gate drivers

● Adaptive dead-time control

● Programmable cycle-by-cycle current limit

● Hiccup mode overload protection

● Programmable line UVLO

● Programmable soft-start

● Thermal shutdown protection

● Programmable slope compensation

● Programmable skip cycle mode reduces standby power

● Allows external VCC supply

● Inductor DCR current sensing capability

● Multiphase capability

● Green product and no Sb/Br

●Device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.