AS3729

General Description AS3729 5A Power Stage The AS3729 is a companion power stage, intended to be used with AS372x products. It cannot be used without a DCDC controller. It contains the power FETs for 2 phases and is capable to handle output currents of 2.5A per phase. Ordering Information and Content Guide appear at end of datasheet. Figure 1: Added Value of Using AS3729 Key Benefits & Features The benefits and features of AS3729, 5A Power Stage are listed below: Benefits Support for single or dual phase operation 2 x 2.5A output stages are running on 3MHz Over-temperature protection Cost effective, small package Features 2 phases with separate control input Separate power NMOS & PMOS for 2.5A per phase Separate coil current feedback per phase Stand-alone zero-crossing operation Integrated temperature monitoring 16-pin WL-CSP: 1.615mm x 1.615mm, 0.4mm pitch Applications The device is a high current dual-phase DCDC and ideal for: Mobile phones Tablets Notebooks ams Datasheet [v1-24] 2015-Aug-13 Page 1 Document Feedback Figure 2: AS3729 Block Diagram Block Diagram The functional blocks of this device for reference are shown below: AS3729 Block Diagram: This figure shows the block diagram of the DCDC controller inside the Main PMIC and the AS3729 Power Stage with all relevant system components. Page 2 Document Feedback ams Datasheet [v1-24] 2015-Aug-13 AS3729 − Pin Assignment Pin Assignment Figure 3: Pin Diagram Figure 4: Pin Description Pin Numb...