FAN49101 - ON Semiconductor

FAN49101 Buck-Boost Regulator

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 an.

Features

• 24 mA Typical PFM Quiescent Current
• Above 95% Efficiency
• Total Layout Area = 11.61 mm2
• Input Voltage Range: 2.5 V to 5.5 V
• I2C Compatible Interface
• 1.8 MHz Fixed−Frequency Operation in PWM Mode
• Automatic / Seamless Step−up and Step−down Mode Transitions
• Forced PWM and Automatic PFM/PWM Mode Selection
• 0.5 mA Typical Shutdown Current
• Low Quiescent Current Pass−Through Mode
• Internal Soft−Start and Output Discharge
• Low Ripple and Excellent Transient Response
• Internally Set, Automatic Safety Protections (UVLO, OTP, SCP, OCP) MARKING DIAGRAM FC&K &2&Z FC = Specific Device .