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FAN49101 - Buck-Boost Regulator

General Description

The FAN49101 is a high efficiency buck

regulator which accepts input voltages either above or below the regulated output voltage.

bridge architecture with synchronous rectification, the FAN49101 is capable of delivering up to 2 A while regulating the o

Key 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.

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Datasheet Details

Part number FAN49101
Manufacturer onsemi
File Size 174.41 KB
Description Buck-Boost Regulator
Datasheet download datasheet FAN49101 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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DATA SHEET www.onsemi.com Regulator - Buck-Boost, TinyPowerE, I2C, 2 A, 1.8 MHz WLCSP20 2.015x1.615x0.586 CASE 567QK FAN49101 Description 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.