RT6255B Datasheet | Richtek

Reference Design Sample & Buy ® RT6255A/B 5A, 18V, 500kHz, ACOTTM Step-Down Converter General Description The RT6255A/B is a high-performance, synchronous stepdown DC-DC converter that can deliver up to 5A output current from a 4.5V to 18V input supply. The device integrates low RDS(ON) power MOSFETs, accurate 0.6V reference and an integrated diode of bootstrap circuit to offer a very pact solution. The RT6255A/B adopts Advanced Constant On-Time (ACOTTM) control architecture that provides ultrafast transient response and further reduces the externalponent count. In steady states, the ACOTTM operates in nearly constant switching frequency over line, load and output voltage ranges...