4.5-V to 24-V input, 12-A synchronous buck converter with adjustable output | VAB | 13 | -40 to 125

The device is a monolithic, 12A, synchronous buck

converter with integrated MOSFETs that enable high efficiency and offer ease-of-use with

minimum external component count for space-conscious power systems.

The TPS51388 employs D-CAP3 control mode that

provides fast transient response and excellent line and load regulation with internal

compensation. The ULQ extended battery life feature is extremely beneficial for long battery

life in low power operation. The large duty operation greatly improves the load transient

performance when input voltage is low.

The EN pin can be used to set Eco-mode or

Out-of-Audio (OOA) mode for light-load operation. The Eco-mode maintains high efficiency

during light load operation. The OOA mode keeps the switching frequency above audible

frequency with minimum reduction in efficiency. The EN pin can be toggled dynamically, even

when the converter is in operation.

The TPS51388 integrates a power-good indicator

and provides an output discharge function. The TPS51388 provides complete protection

including OVP, UVP, OCP, OTP, and UVLO. The device is available in a 13-pin, 3.0mm × 4.0mm

HotRod package, and the junction temperature is specified from –20°C to 125°C.