onsemi FAN49101AUC340X

Buck-Boost Regulator, 2 A, 1.8 MHz, TinyPower™ I2C

Switching Regulator, 2A, 1800kHz Switching Freq-Max

ALSO REQUIRE PFM CONTROL TECHNIQUE Tape & Reel (TR) Tin/Silver/Copper (Sn/Ag/Cu) ACTIVE (Last Updated: 4days ago) DC to DC switching regulator 3.4V 73mg 2A 1.8MHz

The FAN49101 is a high efficiency buck-boost switching mode regulator which accepts input voltages either above or below the regulated output voltage. Using full-bridge architecture with synchronous rectification, the FAN49101 is capable of delivering up to 2 A while regulating the output at 3.4 V. The FAN49101 exhibits seamless transition between step-up and step-down modes reducing output disturbances. The output voltage and operation mode of the regulator can be programmed through an I2C interface.At moderate and light loads, Pulse Frequency Modulation (PFM) is used to operate the device in power-save mode to maintain high efficiency. In PFM mode, the part still exhibits excellent transient response during load steps. At moderate to heavier loads or Forced PWM mode, the regulator switches to PWM fixed-frequency control. While in PWM mode, the regulator operates at a nominal fixed frequency of 1.8 MHz, which allows for reduced external component values.