RT6154BGQW

The RT6154BGQW is a high efficiency single inductor buck-boost converter in 14 pin WDFN package. The RT6154B is a high efficiency single inductor buck boost converter which can operate with wide input voltage such as battery which is higher or lower than the output voltage and it can supply the load current up to 4A. The RT6154B feedback loop is internally compensated for both buck and boost operation and it provides seamless transition between buck and boost modes and optimal transient response. The RT6154B operates in Pulse Skipped Modulation (PSM) mode for increasing efficiency during low power RF transmission modes. The Power Save Mode can be disabled, forcing the RT6154B to operate at a fixed switching frequency operation at 2.4MHz. The RT6154B can also be synchronized with external frequency from 2.2MHz to 2.6MHz. The RT6154B output voltage is fixed internally to 3.3V. Typical applications include cellular phones, portable hard disk drives and PDAs.

• Operates from a single li-ion cell of 1.8V to 5.5V
• Adjustable output voltage range from 1.8V to 5.5V
• 3A maximum load capability for VIN > 3.6V, VOUT = 3.3V
• Up to 96% efficiency
• Switching frequency is 2.4MHz in full synchronous operation
• Input current limit, internal compensation