AIC2857F Datasheet – 2A 23V Synchronous Step-Down Converter – AIC

Part number : AIC2857F

Functions : 2A 23V Synchronous Step-Down Converter

Package : SOP 8 Pin

Manufacturer : Analog Intergrations

Image :

AIC2857F datasheet

Product Information

  • 2A Continuous Output Current
  • Programmable Soft Start
  • 130mΩ Internal Power MOSFET Switches
  • Stable with Low ESR Output Ceramic Capacitors
  • Up to 93% Efficiency
  • <1μA Supply Current in Shutdown Mode
  • Fixed 340KHz Frequency
  • Thermal Shutdown
  • Cycle by Cycle Over Current Protection
  • Wide 4.75 to 23V Operating Input Range
  • Output Adjustable from 0.925V to 12V
  • Under Voltage Lockout


Pinouts and circuit

AIC2857F pinout and circuit


The AIC2857F is a synchronous step-down regulator with an integrated Power MOSFET. It achieves 2A continuous output current over a wide input supply range with excellent load and line regulation. Current mode operation provides fast transient response and eases loop stabilization. Fault condition protection includes cycle-bycycle current limiting and thermal shutdown.
Adjustable soft-start reduces the stress on the input source and the output overshoot at turnon.
In shutdown mode, the regulator draws 1μA or less of supply current.



1. Networking Systems such as Modems & Routers
2. Distributed Power Systems
3. Pre-Regulator for Linear Regulators.
4. Set-top Box

Official Hompage :

Reference page :

AIC2857F Datasheet PDF

AIC2857F pdf

Other data sheets within the file : AIC1385, AIC1386, AIC1387, AIC1388, AIC2362