The TPS54232D is a 28V non-synchronous Buck Converter integrates a low RDS(on) high-side MOSFET. To increase efficiency at light loads, a pulse-skipping Eco-Mode feature is automatically activated. Furthermore, the 1µA shutdown supply current allows the device to be used in battery-powered applications. Current mode control with internal slope compensation simplifies the external compensation calculations and reduces component count while allowing the use of ceramic output capacitors. A resistor divider programs the hysteresis of the input under-voltage lockout. An overvoltage transient protection circuit limits voltage overshoots during start-up and transient conditions. A cycle-by-cycle current limit scheme, frequency fold back and thermal shutdown protect the device and the load in the event of an overload condition.
● 3.5 to 28V Input voltage range
● Adjustable output voltage down to 0.8V
● Integrated 80mR high-side MOSFET supports up to 2A continuous output current
● High efficiency at light loads with a pulse skipping Eco-Mode™
● Fixed 1MHz switching frequency
● Typical 1µA shutdown quiescent current
● Adjustable slow-start limits inrush currents
● Programmable UVLO threshold
● Overvoltage transient protection
● Cycle-by-cycle current limit, frequency fold back and thermal shutdown protection
● Green product and no Sb/Br
●Device has limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
