3-V to 16-V input voltage, 4-A ECO mode, synchronous buck converter in SOT-563 package

The

TPS56424x is simple, easy-to-use, high power density, high efficiency

synchronous buck converter. The device supports input voltage ranging from 3 V to 16

V and up to 4-A

continuous current with a SOT-563 package.

The

TPS56424x uses D-CAP3 topology to provide a fast transient response and

support low-ESR output capacitors with no requirement for external compensation. It

has two grounds, GND and AGND, which should be connected together for optimal

thermal performance. AGND also provides a good load and line regulation. The device

can support up to 95% duty operation.

The TPS564242 operates in Eco-mode, which maintains high efficiency during

light loading. The

TPS564247 operates in FCCM mode, which keeps

the same frequency and lower output ripple during all load conditions. It integrates

complete protection through OVP, OCP, UVLO, OTP, and UVP with hiccup. The device is

available in 1.6-mm × 1.6-mm SOT-563 package and has an optimized pinout for easy

PCB layout. The junction temperature is specified from –40°C to 125°C.