The EA3056 is a 4-CH power management IC for applications powered by one Li-Ion battery or a DC 5V adapter.

It integrates three synchronous buck regulators and one N-MOS LDO in a single chip.

The internal compensation architecture simplifies the application circuit design.

Besides, the independent enable control makes the designer have the greatest flexibility to optimize timing for power sequencing purposes.

The EA3056 is available in a 24 pin QFN 4x4 package.

• 2.7V to 5.5V Input Voltage Range
• Three Buck Converters
  I2C Controlled VID Programmable Reference Voltage from 0.58V to 0.8V -- 6 Bits VID, 5mV Steps
  Output Voltage Can Also be Set by Resistor Divider
  -- The Initial Reference Voltage is 0.6V
  Continuous Loading:
  3A (CH1), 2A (CH2), 1.5A (CH3) Fixed 1.5MHz Switching Frequency
  180° Out of Phase Operation
  100% Duty Cycle Low Dropout Operation
  Independent Enable Control
  Internal Compensation
  Cycle-by-Cycle Current Limit
  <1uA Shutdown Current
  Hiccup Short Circuit Protection
• One LDO Regulator
  I2C Controlled VID Programmable Reference Voltage from 0.58V to 0.8V -- 6 Bits VID, 5mV Steps
  Output Voltage Can Also be Set by Resistor Divider
  -- The Initial Reference Voltage is 0.6V
  500mA Output Current (Peak 1A Output Current)
  Maximum 500mV Dropout Voltage
  Independent Enable Control
• I2C Compatible Interface with Standard Mode(100KHz) and Fast Mode(400KHz)
• Auto Recovery OTP Protection
• Available in 24-pin 4mm x 4mm QFN Package